I. Overview

In the Philippines, the block and lot number of a property is one of the most common ways to identify a parcel of land, especially in subdivisions, residential communities, townships, and planned developments. It is often used in deeds of sale, tax declarations, subdivision plans, homeowners’ association records, building permits, utility applications, barangay records, and local government documents.

A property may be described in several ways under Philippine practice. It may be identified by its Transfer Certificate of Title, Original Certificate of Title, Condominium Certificate of Title, tax declaration number, survey plan number, lot number, block number, technical description, street address, or a combination of these. The block and lot number is useful, but it is not always the final or most legally authoritative identifier of land ownership. For titled land, the certificate of title and its technical description are usually more controlling.

Finding the block and lot number requires understanding where the information appears, which government office or private entity maintains the record, and what document best identifies the property.

II. Meaning of “Block” and “Lot” in Philippine Property Records

A lot is a specific parcel of land identified in a subdivision, cadastral, or survey plan. It is usually marked by a lot number, such as Lot 12.

A block is a grouping of several lots within a subdivision or planned layout. It is usually marked by a block number, such as Block 5.

Thus, a property may be described as:

Lot 12, Block 5, Phase 2, Green Meadows Subdivision, Barangay X, City of Y

This means the parcel is Lot 12 within Block 5 of a particular subdivision or phase.

In older records, rural lands, agricultural lands, or non-subdivision properties may not have a “block” number. They may only have a lot number, survey number, cadastral lot number, or technical description.

III. Why the Block and Lot Number Matters

The block and lot number is important because it helps identify a property for practical, administrative, and legal purposes.

It is commonly needed for:

Buying or selling land
Verifying property identity before purchase
Checking tax declarations
Locating a title at the Registry of Deeds
Applying for building permits
Applying for water, electricity, internet, and other utilities
Checking zoning classification
Confirming subdivision location
Locating a property in an assessor’s map
Settling boundary or ownership disputes
Processing estate settlement
Preparing deeds, affidavits, and contracts
Checking homeowners’ association or developer records

However, a block and lot number alone does not prove ownership. It is merely an identifying detail. Ownership must be verified through proper title, tax, survey, and possession records.

IV. Main Documents Where the Block and Lot Number May Be Found

A. Certificate of Title

The most important document to check is the property’s certificate of title. Depending on the nature of the property, this may be:

Original Certificate of Title, or OCT
Transfer Certificate of Title, or TCT
Condominium Certificate of Title, or CCT

For land, the title may show the lot number, block number, survey plan number, area, location, and technical description.

In many subdivision titles, the description may state:

“A parcel of land known as Lot 8, Block 3 of the subdivision plan…”

The title may also refer to a plan number, such as:

“Psd-,” “LRC Psd-,” “PCS-____,” or similar survey plan references.

The block and lot number may appear on the face of the title, in the technical description, or in the property description section.

B. Deed of Sale or Deed of Absolute Sale

If the property was bought, the deed of sale often contains a description of the property. It may identify the land by:

Block and lot number
TCT number
Area
Location
Boundaries
Technical description
Subdivision name
Tax declaration number

The deed is useful because it often states the property in plain language, especially if the title’s technical description is difficult to interpret.

C. Tax Declaration

A tax declaration is issued by the local assessor’s office for real property tax purposes. It may show:

Owner’s declared name
Property index number or PIN
Tax declaration number
Lot number
Block number
Location
Area
Classification
Market value
Assessed value

Tax declarations are especially useful when the title is unavailable or when the property is untitled. However, a tax declaration is not the same as a certificate of title and is not conclusive proof of ownership.

D. Real Property Tax Receipts

Official receipts for real property tax payments may contain the tax declaration number, property identification number, or brief property description. Some receipts include the block and lot number, while others only refer to the tax declaration.

If the receipt does not show the block and lot number, it can still help because the tax declaration number can be used at the assessor’s office to retrieve the full property record.

E. Subdivision Plan

The subdivision plan is one of the best sources for block and lot identification. It shows the layout of the subdivision, including roads, blocks, lot numbers, easements, open spaces, and sometimes lot dimensions.

Subdivision plans may be available from:

The developer
Homeowners’ association
Local assessor’s office
City or municipal planning office
Registry of Deeds
Land Registration Authority records
Department of Human Settlements and Urban Development records, for subdivision projects
Licensed geodetic engineer who prepared or holds a copy of the plan

F. Approved Survey Plan

An approved survey plan may identify the property by lot number, block number, survey number, bearings, distances, boundaries, and area. Survey plans are usually prepared by a licensed geodetic engineer and approved by the proper government authority.

Survey plans may include references such as:

Psd
Csd
Psu
Cad
Pcs
LRC plan numbers

These references can be very important when trying to match a physical property to its legal description.

G. Contract to Sell

For properties bought from a developer, the contract to sell usually states the block and lot number. This is common in subdivision sales where the buyer pays in installments before full transfer of title.

The contract may describe the property as:

“Lot 15, Block 7, Phase 1…”

This is usually one of the easiest documents to check.

H. Reservation Agreement

Before a contract to sell is signed, buyers often execute a reservation agreement with the developer. This document commonly identifies the selected property by project, phase, block, and lot number.

I. Developer’s Records

If the property is inside a subdivision, the developer’s office may have a master list, subdivision plan, buyer records, or inventory records showing the block and lot number.

This is especially useful for properties that are not yet individually titled or where the title is still in the developer’s name.

J. Homeowners’ Association Records

A homeowners’ association may keep a roster of residents or homeowners arranged by block and lot number. HOA records may also include:

Property address
Registered owner
Occupant
Association dues account
Gate pass records
Community map
Turnover records

HOA records are useful but should not be treated as conclusive proof of ownership.

K. Barangay Records

Barangay offices may have records of residents, business permits, community tax certificates, barangay clearances, or local maps that identify houses by block and lot number.

Barangay records are practical aids, but they are usually not sufficient for formal land verification.

L. Building Permit and Occupancy Permit Records

City or municipal engineering offices may have building permit records showing the location of the property. These documents often include the block and lot number, especially in subdivision areas.

The permit files may contain:

Building permit application
Location plan
Site development plan
Architectural plans
Occupancy permit
Electrical permit
Sanitary permit
Zoning clearance

M. Zoning or Locational Clearance

The city or municipal planning and development office may issue zoning or locational clearances for construction or business use. These records may identify the property by block and lot number, title number, tax declaration number, or location plan.

N. Utility Records

Water, electric, cable, and internet service providers may have service addresses that include the block and lot number. These are useful for practical identification but are not legal proof of ownership.

O. Court Records

If the property has been involved in litigation, estate settlement, foreclosure, annulment of sale, partition, ejectment, expropriation, or land registration proceedings, court pleadings and decisions may contain the block and lot number.

P. Estate Settlement Documents

Extrajudicial settlements, affidavits of self-adjudication, estate tax returns, and partition agreements often describe inherited properties using block and lot numbers, title numbers, or tax declaration numbers.

V. Where to Find the Block and Lot Number

A. Registry of Deeds

The Registry of Deeds is the government office where land titles are registered. If the property is titled, the Registry of Deeds may have a copy of the certificate of title and related registered documents.

To search through the Registry of Deeds, the most useful information is:

Title number
Registered owner’s name
Location of the property
Lot number or survey plan number
Deed registration details
Previous title number

If you have the title number, finding the title is easier. If you only have the owner’s name, the search may be more difficult because names may be common, misspelled, outdated, or associated with multiple properties.

The block and lot number may be found in the property description on the title.

B. Land Registration Authority

The Land Registration Authority supervises the land registration system and maintains records related to registered land. Certified true copies of titles are commonly requested through systems connected with the Registry of Deeds.

If the property is titled, obtaining a certified true copy of the title is one of the most reliable ways to confirm the property description.

C. City or Municipal Assessor’s Office

The assessor’s office keeps tax declaration records and property assessment records. This is often one of the most practical places to find a block and lot number, especially if you know the property address or tax declaration number.

The assessor may help locate:

Tax declaration
Property index number
Assessment record
Lot and block number
Declared owner
Classification
Area
Market value
Assessed value

The assessor’s office may also have tax maps that help locate the property within a barangay, subdivision, or district.

D. City or Municipal Treasurer’s Office

The treasurer’s office handles real property tax payments. It may not always have the full block and lot description, but it can help trace the tax declaration number or payment history.

If you have an official receipt for real property tax, the treasurer’s office can often identify the corresponding tax declaration.

E. City or Municipal Planning and Development Office

This office may have zoning maps, land use maps, subdivision plans, and locational clearance files. It can help identify the property’s location and sometimes its block and lot number.

This office is especially useful when checking whether the property lies within a subdivision, residential zone, commercial zone, agricultural area, hazard area, road widening area, or other land use classification.

F. City or Municipal Engineering Office

For properties with constructed buildings, the engineering office may have permit files. These often contain site plans and location plans that identify the lot.

G. Developer or Subdivision Administration Office

For subdivision properties, the developer or subdivision administration office is usually one of the easiest sources. They may keep the master subdivision plan, sales records, and lot inventory.

This is particularly useful where:

The property is newly developed
The title has not yet been transferred to the buyer
The subdivision has phases
The street address does not clearly identify the lot
The buyer only has a contract to sell or reservation document

H. Homeowners’ Association

The HOA may help identify the block and lot number through its community map, billing records, gate pass records, or membership list.

I. Licensed Geodetic Engineer

A licensed geodetic engineer can help identify a property using technical descriptions, survey plans, monuments, boundaries, and coordinates. This is important when the issue is not merely documentary but physical: for example, when you need to know which exact parcel on the ground corresponds to a title.

A geodetic engineer may be needed for:

Relocation survey
Verification survey
Boundary dispute
Subdivision survey
Consolidation-subdivision survey
Lot plotting
Reconstitution of lost boundary markers
Comparison of title description with actual occupation

VI. Step-by-Step Guide to Finding the Block and Lot Number

Step 1: Gather All Available Property Information

Start by collecting every document or detail available. Useful information includes:

Property address
Name of registered owner
Name of seller or developer
Subdivision name
Phase number
Street name
House number
Tax declaration number
Title number
Lot area
Old receipts
Deed of sale
Contract to sell
Utility bills
Building permit
Barangay certificate
Real property tax receipt
Survey plan
Sketch plan
Vicinity map

Even one document may lead to another. For example, a tax receipt may lead to a tax declaration, which may lead to a title number, which may lead to the block and lot number.

Step 2: Check the Certificate of Title

If you have the title, examine the property description carefully. Look for words such as:

Lot
Block
Psd
Csd
Psu
Cad
Plan
Survey
Subdivision plan
Technical description

In subdivision titles, the block and lot number is often clearly stated. In non-subdivision properties, there may be only a lot number and survey plan reference.

Step 3: Check the Deed or Contract

If the title is unavailable, review the deed of sale, contract to sell, reservation agreement, or mortgage documents. These often contain a plain description of the property.

Step 4: Check the Tax Declaration

Proceed to the city or municipal assessor’s office where the property is located. Provide the tax declaration number, owner’s name, address, subdivision name, or any other available details.

Ask for the latest tax declaration and, where allowed, the assessment record or property index details.

Step 5: Check Real Property Tax Receipts

If you only have tax receipts, use them to trace the tax declaration number. The treasurer’s office or assessor’s office can usually help identify the corresponding property record.

Step 6: Ask the Developer or Subdivision Office

For subdivision properties, ask the developer or subdivision administration for the property’s block and lot based on the buyer’s name, address, or account number.

Step 7: Ask the Homeowners’ Association

If the property is occupied or inside a managed subdivision, the HOA may identify the property by address, owner, or occupant.

Step 8: Request or Inspect the Subdivision Plan

If there is confusion over the exact location, request to inspect the subdivision plan. This can show how the blocks and lots are arranged.

Step 9: Consult a Geodetic Engineer

If documentary records are conflicting, incomplete, or unclear, engage a licensed geodetic engineer to plot the title or survey plan and identify the lot on the ground.

Step 10: Cross-Check All Records

Do not rely on one record alone. Compare the following:

Title
Tax declaration
Deed
Survey plan
Subdivision plan
Physical occupation
Assessor’s map
Developer records
HOA records

Any inconsistency should be resolved before buying, selling, building on, mortgaging, or litigating over the property.

VII. How to Find the Block and Lot Number Using Only an Address

Sometimes a person only knows the house number, street, subdivision, barangay, city, or municipality. In that case, the following steps may help:

Go to the subdivision administration office or HOA and ask for the block and lot corresponding to the address.
Go to the barangay and ask whether their records identify the property.
Go to the assessor’s office and request assistance using the address, street name, owner’s name, or subdivision name.
Check utility bills or building permit records.
Ask the developer, if the project is still active.
Review community maps or subdivision maps, if available.
Verify the result against the tax declaration or title.

An address is not always enough. House numbers may change, streets may be renamed, lots may be subdivided or consolidated, and informal addresses may not match official records.

VIII. How to Find the Block and Lot Number Using the Owner’s Name

If the only known detail is the owner’s name, the search can be more difficult but still possible.

Possible steps include:

Search at the assessor’s office of the city or municipality where the property is believed to be located.
Ask whether the owner has tax declarations under that name.
Search title records through the Registry of Deeds, if there is enough identifying information.
Check developer or HOA records if the property is in a subdivision.
Review estate, court, or family documents if the property was inherited.
Ask for copies of tax receipts, deeds, or title documents from the owner or heirs.

Searching by name may be unreliable where names are common, misspelled, abbreviated, or outdated. Married names, estate names, corporate names, and former owners can also complicate the search.

IX. How to Find the Block and Lot Number Using a Tax Declaration

If you have the tax declaration number, finding the block and lot number is usually easier.

You may proceed to the assessor’s office and request the property record associated with that tax declaration. The record may show the block and lot number directly. If it does not, it may show the title number, survey number, property index number, or location details that can lead to the correct block and lot.

Remember that a tax declaration may not reflect the latest ownership or the exact legal status of the land. Tax declarations can remain under old owners if transfers were not properly updated.

X. How to Find the Block and Lot Number Using a Title Number

If you know the title number, request a certified true copy of the title from the proper Registry of Deeds or authorized title request system. The title should contain the property description.

Once you obtain the title, check:

Registered owner
Location
Lot number
Block number
Survey plan number
Area
Boundaries
Encumbrances
Previous title reference

The title is usually more authoritative than HOA or developer records.

XI. How to Find the Block and Lot Number of Untitled Land

Untitled land may not have a TCT or OCT. In that case, the property may be identified through:

Tax declaration
Survey plan
Cadastral lot number
Possessory information
Deed of sale of rights
Barangay certification
Assessor’s map
DENR land records, where applicable
CENRO or PENRO records, where applicable
Court land registration records, if pending or completed
Geodetic survey records

Untitled land must be handled carefully. A tax declaration or deed of rights does not have the same legal effect as a Torrens title. Before buying untitled land, it is important to verify whether the land is alienable and disposable, whether it is public or private land, whether there are adverse claimants, whether the seller has valid possessory rights, and whether the land is subject to pending land registration or government restrictions.

XII. How to Find the Block and Lot Number of Condominium Property

For condominiums, the usual identifying document is a Condominium Certificate of Title. A condominium unit is not usually described by “block and lot” in the same way as a subdivision house lot.

Instead, a condominium may be identified by:

Unit number
Floor number
Tower or building name
Condominium Certificate of Title number
Project name
Parking slot number, if separately titled or assigned
Master deed
Declaration of restrictions
Condominium corporation records

The land on which the condominium sits may have a lot number or title number, but the buyer’s unit is usually identified by CCT and unit details rather than block and lot.

XIII. Difference Between Block/Lot Number and Title Number

A block and lot number identifies the parcel within a subdivision or survey layout.

A title number identifies the certificate of title registered with the Registry of Deeds.

Example:

Block and lot: Lot 10, Block 4
Title number: TCT No. 123456

The block and lot tells you which parcel it is. The title number tells you which registered title covers it.

Both are important, but they are not interchangeable.

XIV. Difference Between Lot Number and Tax Declaration Number

A lot number identifies the land parcel in a survey or subdivision plan.

A tax declaration number identifies the property record for real property tax purposes.

A tax declaration number may change when ownership, classification, subdivision, consolidation, or reassessment occurs. A lot number may also change if the property is subdivided, consolidated, or re-surveyed.

XV. Difference Between Lot Number and Survey Plan Number

The lot number identifies the specific parcel.

The survey plan number identifies the plan where the parcel is shown.

For example:

Lot 5, Block 2, Psd-____

Here, Lot 5 is the parcel, Block 2 is the block grouping, and Psd-____ is the subdivision plan reference.

The survey plan is important because several different subdivisions or cadastral surveys may contain a “Lot 5.” The plan number tells you which survey layout is being referred to.

XVI. Difference Between Street Address and Block/Lot Number

A street address is used for location and mailing. A block and lot number is used for property identification within a subdivision or survey plan.

A street address may be:

No. 25 Mabini Street, Sunshine Village

The block and lot may be:

Lot 18, Block 6, Sunshine Village

They may refer to the same property, but one is not always enough to verify the other. Street addresses may be unofficial, duplicated, changed, or assigned after the subdivision plan was approved.

XVII. Common Problems in Finding Block and Lot Numbers

A. The Property Has No Block Number

Not all properties have block numbers. Agricultural land, old residential land, ancestral land, cadastral land, and non-subdivision parcels may only have lot numbers or survey numbers.

B. The Property Is Part of an Old Subdivision

Older subdivisions may have incomplete, inconsistent, or hard-to-read records. Street names may have changed, and the subdivision plan may not be readily available.

C. The Property Has Been Subdivided

A mother lot may have been subdivided into smaller lots. The old lot number may no longer match the current title or tax declaration.

D. The Property Has Been Consolidated

Several lots may have been combined into one new lot. The old block and lot numbers may have been replaced by a new lot number.

E. The Title and Tax Declaration Do Not Match

This is common. The title may show one description, while the tax declaration may show another. The mismatch may be due to clerical error, delayed tax mapping, subdivision, consolidation, transfer not updated, or incorrect declaration.

F. The Seller Gives Only a House Number

A house number is not enough to verify the land. Always require the title, tax declaration, or survey details.

G. The Property Is Still Under the Developer’s Mother Title

In some developments, individual titles may not yet have been issued. The buyer may only have a contract to sell identifying the assigned block and lot. Extra caution is needed because the individual title may still be pending.

H. Informal Settlements and Rights-Based Claims

In some communities, lots are identified informally by block and lot numbers assigned by an association, barangay, or relocation program. These may not correspond to titled land records.

I. Reblocking or Government Housing Projects

Government housing, relocation, or socialized housing projects may use block and lot numbers in award documents. The records may be with the housing agency, local government, homeowners’ association, or project administrator.

J. Duplicate or Similar Subdivision Names

Some subdivision names are repeated in different barangays, cities, or provinces. Always confirm the exact barangay, city or municipality, province, phase, and developer.

XVIII. Legal Value of the Block and Lot Number

The block and lot number is a useful identifier, but by itself it does not establish ownership.

For titled land, ownership is primarily verified through the certificate of title. A person claiming ownership should be able to show a valid title, a proper chain of transfers, and documents supporting possession and tax payments.

For untitled land, ownership or possessory rights require deeper verification, including tax declarations, possession, classification of land, survey records, and possible court or administrative proceedings.

A block and lot number may help locate a property, but it does not answer all legal questions, such as:

Who owns the property?
Is the title genuine?
Is the seller authorized to sell?
Is the land mortgaged?
Is there an adverse claim?
Is the property subject to litigation?
Is the land covered by a road widening project?
Is it within a protected, forest, foreshore, or public land area?
Are there unpaid real property taxes?
Are there informal occupants?
Are the boundaries correct?
Has the land been subdivided or consolidated?

XIX. Due Diligence Before Buying Property

A buyer should not rely only on the block and lot number. Before purchasing property, the buyer should conduct due diligence.

Important checks include:

A. Obtain a Certified True Copy of the Title

The buyer should obtain a recent certified true copy of the title and compare it with the seller’s copy.

B. Verify the Seller’s Identity

Check whether the seller is the registered owner. If the seller is an agent, attorney-in-fact, heir, corporation, or developer, additional authority documents are required.

C. Check the Technical Description

The technical description should match the property being sold. A geodetic engineer may be needed to plot it.

D. Check Encumbrances

The title may show mortgages, liens, adverse claims, notices of levy, restrictions, easements, or other annotations.

E. Check Real Property Taxes

Ask for updated tax declarations and real property tax receipts. Verify with the treasurer’s office whether taxes are paid.

F. Check Zoning and Land Use

Confirm with the planning office whether the intended use is allowed.

G. Check Physical Possession

Inspect the property. Determine whether someone occupies it, whether boundaries are marked, and whether there are structures or encroachments.

H. Check Subdivision Restrictions

Subdivision lots may be subject to deed restrictions, homeowners’ association rules, setbacks, easements, architectural rules, or use restrictions.

I. Check Road Access

Confirm legal and actual access to the property. A lot may appear valid on paper but have access problems.

J. Check for Pending Cases

Where risk is high, check whether the property is involved in litigation, estate disputes, foreclosure, or administrative proceedings.

XX. Role of a Geodetic Engineer

A geodetic engineer is often necessary when there is uncertainty about the property’s exact location.

The geodetic engineer can:

Plot the technical description
Locate the property on the ground
Identify boundaries
Compare the title with actual occupation
Prepare relocation surveys
Verify monuments
Check overlaps
Prepare subdivision or consolidation plans
Assist in boundary disputes

When buying land, especially raw land or old titled property, a relocation survey is often a wise precaution.

XXI. Role of a Lawyer

A lawyer can help when the issue involves ownership, sale, inheritance, adverse claims, title defects, authority to sell, fraud, conflicting documents, or litigation.

A lawyer may review:

Title
Deed of sale
Contract to sell
Tax declaration
Authority to sell
Special power of attorney
Estate documents
Corporate authority documents
Developer documents
Restrictions and annotations
Court records

A lawyer can also help prepare or review legal documents and advise on risks before payment is made.

XXII. Finding Block and Lot Numbers in Government Housing or Relocation Projects

In government housing, resettlement, or socialized housing projects, the block and lot number may appear in:

Award notice
Certificate of lot award
Contract to sell
Occupancy permit
Housing agency records
Local housing office records
Homeowners’ association records
Project subdivision plan
Census or beneficiary master list

The relevant agency may be a local government housing office, national housing agency, or project-specific administrator.

Extra care is needed because some beneficiaries may have occupancy rights but not yet full ownership or title.

XXIII. Finding Block and Lot Numbers in Rural or Agricultural Land

Rural or agricultural land may be identified differently. Instead of a block and lot number, records may refer to:

Cadastral lot number
Survey number
Tax declaration number
Barangay and sitio
Boundaries by adjoining owners
OCT or TCT number
Agricultural classification
DENR records
Agrarian reform records, if applicable

Agricultural land may also be subject to agrarian reform restrictions, tenancy issues, land use conversion requirements, or other special rules.

XXIV. Finding Block and Lot Numbers for Inherited Property

For inherited property, start with the deceased owner’s documents:

Owner’s duplicate certificate of title
Tax declarations
Real property tax receipts
Deeds
Estate tax documents
Extrajudicial settlement
Court settlement records
Old subdivision plans
Family records

If heirs only know the general location, the assessor’s office may help search by the deceased owner’s name. The Registry of Deeds may also be searched if the title number or sufficient identifying information is available.

Heirs should be careful because the property may still be titled in the name of a deceased person, may have unpaid estate taxes, or may have been sold, mortgaged, or occupied by others.

XXV. Finding Block and Lot Numbers for Foreclosed Property

For foreclosed properties, the block and lot number may appear in:

Notice of foreclosure
Certificate of sale
Sheriff’s certificate
Bank listing
Appraisal report
Title
Tax declaration
Court or notarial records

Before buying foreclosed property, verify the title, redemption period, occupants, taxes, association dues, and physical condition.

XXVI. Finding Block and Lot Numbers for Properties in Dispute

If there is a dispute, do not rely only on verbal statements. Obtain documents and compare them carefully.

Documents to check include:

Titles of both parties
Tax declarations
Survey plans
Relocation surveys
Barangay records
Court pleadings
Assessor’s maps
Deeds
Possession documents

Boundary disputes often require both legal and geodetic analysis. The issue may not be who has the block and lot number, but whether the title, survey, and actual occupation overlap or conflict.

XXVII. Practical Checklist

To find a block and lot number, check the following in order:

Certificate of title
Deed of sale
Contract to sell
Reservation agreement
Tax declaration
Real property tax receipt
Subdivision plan
Developer records
Homeowners’ association records
Barangay records
Building permit records
Zoning or locational clearance
Utility records
Registry of Deeds records
Assessor’s tax map
Survey plan
Geodetic engineer’s verification

For the strongest verification, compare the title, tax declaration, survey plan, and actual location.

XXVIII. Sample Request Letter to the Assessor’s Office

Subject: Request for Property Verification

To the City/Municipal Assessor:

I respectfully request assistance in verifying the property record, including the block and lot number, tax declaration details, area, classification, and other available assessment information for the property located at:

[Property address or known location]

The available details are as follows:

Registered/Declared Owner: [Name] Subdivision/Barangay: [Name] Tax Declaration No.: [If known] Title No.: [If known] Other Details: [Street, house number, phase, previous owner, or other identifying information]

This request is made for purposes of property verification.

Respectfully, [Name] [Contact details]

XXIX. Sample Request to a Developer or Subdivision Office

Subject: Request for Confirmation of Block and Lot Number

To the Subdivision Administration/Developer:

I respectfully request confirmation of the block and lot number of the property located at:

[House number, street, phase, subdivision, barangay, city/municipality]

The property is believed to be associated with:

Owner/Buyer: [Name] Account No.: [If known] Contract/Reservation No.: [If known] Phase: [If known] Street: [If known]

Kindly confirm the block and lot number and advise whether there are available records, subdivision plans, or documents relating to the property.

Respectfully, [Name] [Contact details]

XXX. Sample Property Description Clause

A property description in a deed or contract may appear as follows:

A parcel of land identified as Lot ___, Block ___, Phase ___, situated in [Subdivision], Barangay ___, City/Municipality of ___, Province of ___, covered by Transfer Certificate of Title No. ___, containing an area of ___ square meters, more or less.

A more complete legal description may include the technical description from the title or survey plan.

XXXI. Common Mistakes to Avoid

A. Treating the Block and Lot Number as Proof of Ownership

A block and lot number identifies land but does not prove ownership.

B. Relying Only on the Seller’s Statement

Always verify documents independently.

C. Ignoring the Title

For titled land, the title is essential. Do not rely solely on tax declarations or HOA records.

D. Ignoring the Technical Description

The technical description is important, especially when boundaries are disputed.

E. Failing to Check the Registry of Deeds

A seller’s photocopy of a title may be outdated, altered, or incomplete. A recent certified true copy should be checked.

F. Failing to Check Taxes

Unpaid real property taxes can cause problems after purchase.

G. Confusing Unit Numbers with Lot Numbers

Condominium units are usually identified differently from subdivision lots.

H. Confusing Mother Titles with Individual Titles

A developer’s mother title may cover a large area. The buyer’s specific lot should eventually have an individual title or proper subdivision documentation.

I. Ignoring Occupants

The document may say one thing, but the physical property may be occupied by another person.

J. Ignoring Easements and Restrictions

A lot may be subject to drainage easements, road setbacks, utility easements, or subdivision restrictions.

XXXII. Special Considerations in the Philippine Torrens System

The Philippines follows a land registration system under which registered land is covered by certificates of title. The certificate of title is intended to provide certainty, but due diligence is still necessary.

A block and lot number should be read together with the title and technical description. The property description on the title should match the subdivision or survey plan. If the block and lot number appears in private records but not in the title, investigate further.

Where there are discrepancies, the certificate of title, approved survey plan, and official registry records carry more weight than informal records.

XXXIII. When the Block and Lot Number Cannot Be Found

Sometimes the block and lot number cannot be found because:

The property is not in a subdivision
The property is untitled
Records are old or missing
The property was subdivided or consolidated
The records are under a former owner
The address is informal
The title is still part of a mother title
The lot is part of a government housing project
The land is occupied without formal documentation
The property description uses only cadastral or survey numbers

In such cases, the next best identifiers are the title number, tax declaration number, survey plan number, cadastral lot number, property index number, and technical description.

XXXIV. Best Evidence for Identifying a Property

The best evidence depends on the type of property.

For titled subdivision land, the best records are:

Certified true copy of the title
Approved subdivision plan
Tax declaration
Geodetic verification, if needed

For untitled land, useful records include:

Tax declaration
Approved survey plan
Possession documents
Land classification records
Geodetic verification
Administrative or court records, if any

For condominium property, useful records include:

Condominium Certificate of Title
Master deed
Declaration of restrictions
Condominium corporation records

For government housing, useful records include:

Award documents
Contract to sell
Agency or local housing records
Project subdivision plan
HOA records

XXXV. Conclusion

Finding the block and lot number of a property in the Philippines is usually a matter of tracing the property through titles, tax declarations, survey plans, subdivision records, developer files, and local government records. The easiest cases involve subdivision properties with available titles, contracts, or tax declarations. More difficult cases involve untitled land, inherited property, old subdivisions, government housing, informal settlements, or properties affected by subdivision, consolidation, or boundary disputes.

The block and lot number is a useful starting point, but it should not be treated as complete proof of ownership or legal identity. The safest approach is to verify the block and lot number against the certificate of title, tax declaration, approved survey or subdivision plan, and actual ground location. Where uncertainty exists, assistance from the assessor’s office, Registry of Deeds, developer, homeowners’ association, licensed geodetic engineer, and legal counsel may be necessary.