Quick answer

One heir generally cannot sell the other heirs’ shares in inherited property without their authority or consent. Before partition, the heirs ordinarily own the estate in common, subject to the decedent’s debts. An heir may sell only that heir’s undivided or hereditary interest.

If the deed purports to sell the entire property, the sale is not automatically void in its entirety. As a general rule, it is effective only to the extent of the seller-heir’s lawful share; the buyer may become a co-owner but does not acquire the non-selling heirs’ shares. The result can differ if the property had already been validly partitioned, the other heirs authorized or ratified the transaction, a minor’s share was involved, signatures were forged, a fraudulent settlement excluded heirs, or an innocent purchaser for value acquired registered land.

The non-selling heirs may seek, depending on the documents and facts:

recognition and recovery of their undivided shares;
nullification or a declaration that the deed is unenforceable or ineffective as to them;
cancellation or correction of titles and reconveyance;
legal redemption of the share sold;
partition, accounting of rents or income, and reimbursement;
damages or urgent injunctive relief; and
appropriate criminal investigation where there is evidence of forgery, falsification, fraud, or another offense.

Act promptly. Some redemption rights must be exercised within 30 days or one month from the legally sufficient notice of sale, while other claims have different limitation rules.

Why several heirs own the estate together

Successional rights pass from the moment of the decedent’s death. When there are two or more heirs, Article 1078 of the Civil Code provides that the entire estate is owned in common before partition, subject to payment of the deceased’s debts.

This does not mean that every heir immediately owns a particular bedroom, floor, farm section, or number of square metres. Until a valid partition identifies what belongs exclusively to each heir, each generally holds an ideal or undivided share in the estate.

The actual shares cannot safely be assumed from the number of children alone. They may depend on:

whether there is a valid will;
the decedent’s surviving spouse, children, parents, or other heirs;
legitimacy, filiation, adoption, representation, disinheritance, or renunciation;
the property regime of the decedent’s marriage;
whether the asset was exclusive, community, or conjugal property;
estate debts, charges, donations subject to collation, and the heirs’ legitimes; and
prior valid partitions, sales, waivers, or court orders.

Where the property belonged to an absolute community or conjugal partnership, that property regime must first be liquidated. Only the portion belonging to the deceased enters the estate; the surviving spouse’s own share is not inherited property.

What exactly can one heir sell?

Article 493 of the Civil Code allows a co-owner to alienate, assign, or mortgage that co-owner’s part and the benefits belonging to it. As against the other co-owners, however, the transfer is limited to the portion that may ultimately be allotted to the seller when the co-ownership ends.

The legal effect therefore depends on what was sold.

Transaction	General effect
The heir sells only an undivided hereditary share	Generally valid without the other heirs’ consent, subject to legal redemption and the final settlement of the estate
The heir sells an undivided interest in a particular co-owned property	Generally effective only up to the seller’s lawful share; the buyer may step into the seller’s place as co-owner
The heir purports to sell the entire co-owned property	Generally cannot bind the shares of heirs who did not consent or authorize the sale
The heir signs for another heir without authority	Unenforceable against the represented heir unless properly ratified
A forged signature is used	A forged deed is generally void and conveys no title, although registered land later acquired by an innocent purchaser for value presents additional issues
All heirs validly partitioned the estate and the property was awarded solely to the seller	The seller may normally dispose of that property without the former co-heirs’ consent
All affected heirs expressly authorized or later ratified the sale	The transaction may bind them, depending on the form, extent, and validity of the authority or ratification
A court-authorized executor or administrator sells estate property	Governed by the probate orders and Rules of Court, not simply by the consent rule applicable to a private seller-heir

A deed’s label is not conclusive. Courts examine its wording, the seller’s ownership, the status of the estate, the title history, possession, and the parties’ conduct.

A sale of the whole property is not always wholly void

A common mistake is to argue that a sale by one co-heir must be cancelled in full. Philippine jurisprudence recognizes a more precise rule: a co-owner cannot transfer more than the co-owner possesses, but the sale may remain effective as to that person’s undivided share.

The Supreme Court applied this approach in cases involving defective partitions and sales by co-heirs. Even when an extrajudicial partition excluding rightful heirs was void, a participating heir’s later sale could remain valid to the extent of that heir’s genuine proportionate share. The buyer then stands as a co-owner with the excluded heirs.

This distinction matters when choosing a remedy. The proper claim may be to:

declare that the deed does not affect the plaintiffs’ shares;
cancel titles only to the extent they exceed the seller’s rights;
reconvey the excluded shares;
recognize the buyer as owner of the seller’s lawful undivided share; and
partition the property among everyone who now has an interest.

Seeking total cancellation without addressing the seller’s legitimate share can produce an incomplete or legally incorrect case.

When an extrajudicial settlement excluded an heir

An extrajudicial settlement under Rule 74 is available only under its stated conditions, including that the decedent left no will and no debts and that the qualified heirs participate, with minors properly represented and the necessary authority obtained. The settlement must be in a public instrument filed with the Register of Deeds and published as required. Rule 74 expressly states that an extrajudicial settlement is not binding on a person who did not participate and had no notice.

A settlement deliberately executed by persons falsely declaring themselves to be the only heirs, despite knowing of other heirs, may be declared void for having an unlawful purpose. However, the invalidity of the partition does not necessarily erase every later sale: a genuine heir may still have transferred that heir’s true undivided share.

Rule 74, Section 4 also provides a remedy when, within two years after settlement and distribution, an heir or another person is shown to have been unduly deprived of a lawful participation. The property remains charged with the specified liability during that period. A minor, mentally incapacitated person, prisoner, or person outside the Philippines at the expiration of the two-year period may present the Rule 74 claim within one year after the disability is removed.

Those periods are not a universal deadline for every possible action. A fraudulent or void instrument, an ordinary civil action to enforce inherited ownership, reconveyance, adverse possession, and laches may involve different rules. Do not assume either that every claim expires after two years or that a void-document theory permits unlimited delay in recovering the land.

Legal redemption may let a co-heir take the buyer’s place

The Civil Code provides two closely related forms of legal redemption.

Sale of hereditary rights before partition

Under Article 1088, when an heir sells hereditary rights to a stranger before partition, one or more co-heirs may take the buyer’s place by reimbursing the purchase price. The right must generally be exercised within one month from written notice of the actual sale by the seller-heir.

The usual requirements are:

There are several heirs;
an heir sells a hereditary right;
the buyer is a stranger to the inheritance;
the sale occurs before partition;
the co-heir acts within one month from the required notice; and
the buyer is reimbursed for the price.

Written notice is the general rule even if a co-heir heard about the transaction another way. The Supreme Court has recognized narrow exceptions in unusual cases involving undeniable, long-standing actual knowledge and extensive delay. No one should rely on an exception instead of acting immediately.

Sale of a share in a particular co-owned property

Articles 1620 and 1623 govern redemption where a co-owner’s share in a specific co-owned thing is sold to a third person. The period is 30 days from written notice. Whether Article 1088 or Articles 1620 and 1623 apply can depend on whether the deed transferred an abstract hereditary right or an interest in a particular property.

A co-heir intending to redeem should have counsel promptly:

obtain the complete deed and proof of notice;
send a clear written exercise of the right;
make a timely, unconditional tender of the proper price;
preserve proof that payment was offered and refused; and
file the appropriate action when the buyer will not honor the redemption.

Do not wait for the seller or buyer to volunteer documents. Do not assume that filing a complaint after the short period will cure a failure to make a timely and valid tender.

Court remedies available to the non-selling heirs

The correct combination of remedies depends on the relief needed.

Declaration of nullity or unenforceability

This may be appropriate where signatures were forged, a person falsely acted for another heir, the deed was simulated, or the instrument otherwise falls within the Civil Code rules on void or unauthorized contracts.

When the seller merely exceeded an actual undivided share, the more accurate relief may be a declaration that the deed is ineffective or unenforceable only as to the non-selling heirs’ shares.

Cancellation of title and reconveyance

If the deed produced a new title that includes the other heirs’ interests, they may seek cancellation or correction of the title and reconveyance of what belongs to them. The seller, buyer, current registered owner, mortgagee, and other persons whose interests will be affected generally must be joined.

Registered land introduces a major qualification. A later buyer’s claimed status as an innocent purchaser for value is fact-sensitive. Reliance on a clean title may not establish good faith when, for example:

the seller was not the registered owner;
the seller was not in possession;
occupants or heirs asserted inconsistent rights;
the title carried a Rule 74 lien, adverse claim, lis pendens, or other annotation;
the buyer knew of another person’s claim; or
circumstances should have prompted further inquiry.

If an innocent purchaser for value has intervened, recovery of the land may become more difficult and other relief against the wrongdoer may have to be considered.

Partition

Every co-owner generally has the right to demand partition. Under Rule 69, the complaint must state the nature and extent of the claimant’s title, adequately describe the real estate, and join all persons interested in it.

A partition case has two principal stages:

The court determines whether co-ownership exists, identifies the parties’ interests, and decides whether partition is proper.
If the parties cannot agree on the division, the court appoints up to three disinterested commissioners to carry it out.

If physical division would make the property unserviceable or cause great prejudice, it may be allotted to one co-owner who indemnifies the others. If the statutory conditions are met and no agreement is possible, a sale and distribution of the proceeds may follow.

Accounting, fruits, rents, and expenses

Partition can include an accounting for income and expenses. Under Article 1087, co-heirs must account to one another for income and fruits received from estate property, useful and necessary expenses, and damage caused through malice or neglect.

Preserve proof of rent, crops, business income, real-property taxes, association dues, insurance, necessary repairs, and improvements. Reimbursement is not automatic for every expense; necessity, benefit, consent, and supporting evidence matter.

Injunction and notice of lis pendens

If another transfer, mortgage, demolition, eviction, or construction is imminent, counsel may evaluate an application for a temporary restraining order or preliminary injunction. These remedies require specific allegations and evidence; urgency alone does not guarantee issuance.

Once an action directly affecting title, possession, use, or occupation is filed, a proper notice of lis pendens may be recorded with the Registry of Deeds. It warns later purchasers and encumbrancers that the property is in litigation. It is not a substitute for filing the correct case and may be cancelled if used merely to harass or if unnecessary to protect the claimant’s rights.

Where and how an action is filed

An action affecting title to, possession of, or an interest in real property is generally filed where the property, or a portion of it, is located.

Under Republic Act No. 11576, jurisdiction over a real action generally turns on assessed value:

a first-level court has jurisdiction when the assessed value of the property or interest does not exceed ₱400,000; and
the Regional Trial Court has jurisdiction when the assessed value exceeds ₱400,000.

The precise allegations and principal relief still matter, particularly when claims incapable of pecuniary estimation are joined. Counsel should examine the latest tax declaration and draft the jurisdictional allegations carefully.

When no estate or heirship proceeding is pending, the Supreme Court’s ruling in Treyes v. Larlar permits compulsory or intestate heirs to bring an ordinary civil action to nullify an instrument, recover property, or enforce ownership acquired by succession without first obtaining a separate declaration of heirship. If a settlement or heirship proceeding is already pending, the proper route may be through that proceeding.

Barangay conciliation may also be a precondition when the dispute falls within the lupon’s authority, commonly where the individual parties actually reside in the same city or municipality. Statutory exceptions include actions coupled with provisional remedies such as preliminary injunction and cases that would otherwise be barred by a limitation period.

What to do immediately

Secure the title history. Obtain certified true copies of the current and prior OCTs or TCTs, including all annotations, from the Registry of Deeds.
Get the transaction documents. Obtain the deed of sale, extrajudicial settlement, affidavit of self-adjudication, powers of attorney, subdivision plan, tax declarations, and registration entries.
Establish the family and estate history. Collect the PSA death certificate, birth and marriage certificates, adoption records, wills, probate orders, prior settlements, waivers, and proof of the decedent’s debts.
Confirm possession and use. Document who occupies the property, who receives rent or crops, who pays taxes, and what improvements or construction have occurred.
Preserve all notices. Keep envelopes, registry receipts, emails, messages, and copies of anything said to constitute written notice of sale. Record the exact date received.
Do not sign casually. A quitclaim, conformity, receipt of sale proceeds, compromise, or acknowledgment may be argued as consent or ratification.
Send a lawyer-reviewed demand. The demand should identify the heirs’ shares, dispute the unauthorized portion of the transfer, request documents and accounting, and reserve appropriate remedies.
Assess urgent protection. If registration, resale, mortgage, demolition, or dispossession is imminent, consult counsel about injunction, lis pendens, or another appropriate annotation or proceeding.
Compute deadlines immediately. Give counsel the dates of death, settlement, registration, discovery, notice, possession, and any written repudiation of co-ownership.

Evidence worth preserving

Keep originals safe and create clear digital copies of:

PSA civil-registry documents;
the will and probate or administration records;
certified titles and Registry of Deeds entries;
deeds, affidavits, powers of attorney, and notarization details;
BIR estate and transfer records available to the parties;
tax declarations, tax receipts, surveys, and approved subdivision plans;
proof of the purchase price and payment trail;
notices of sale and proof of delivery;
family messages and admissions about ownership or consent;
photographs and videos showing possession and improvements;
leases, rent receipts, crop records, and bank deposits;
receipts for taxes, repairs, insurance, and necessary expenses; and
specimen signatures and evidence concerning any suspected forgery.

Do not alter electronic files or surrender the only original to an opposing party.

Common mistakes to avoid

Assuming that the entire sale is void when the seller owned a valid undivided share.
Assuming that registration automatically defeats an omitted heir’s ownership.
Treating a tax declaration as conclusive proof of title.
Ignoring an existing probate or estate-settlement proceeding.
Missing the 30-day or one-month redemption period.
Failing to make a proper and timely tender of the redemption price.
Suing only the seller while omitting the buyer, registered owner, mortgagee, or other indispensable parties.
Filing in the wrong court or province.
Relying on verbal family arrangements when the records show something different.
Accepting money, signing a conformity, or allowing registration without understanding whether that conduct may amount to ratification.
Using force, changing locks, destroying improvements, or evicting occupants without lawful process.
Filing an unsupported criminal complaint merely as leverage in a civil property dispute.

When legal help is urgent

Consult a Philippine succession and property lawyer immediately when:

written notice of the sale has just been received;
a deed is about to be registered or the title transferred again;
the buyer is applying for a mortgage, permit, or subdivision;
a building is being demolished or major construction has begun;
occupants are threatened with eviction;
a minor, incapacitated heir, or heir abroad was excluded;
signatures or notarization appear forged;
an affidavit falsely identifies someone as the sole heir;
the title contains a Rule 74 annotation, adverse claim, mortgage, levy, or lis pendens;
the buyer claims to be an innocent purchaser for value; or
the property has been possessed exclusively for many years under an openly hostile claim.

Frequently asked questions

Can one heir sell an inherited house without everyone’s consent?

The heir can generally sell that heir’s undivided interest, not the other heirs’ interests. A buyer of the share may become a co-owner. Selling the house as a whole requires authority sufficient to bind every affected owner or a lawful court-supervised process.

Is the deed automatically void?

Not necessarily. It may be valid as to the seller’s actual share but ineffective as to the shares of non-consenting heirs. Forgery, unauthorized representation, fraudulent exclusion, marital-property rules, or a court-authorized estate sale can change the analysis.

Can the other heirs redeem the share?

Possibly. Article 1088 or Articles 1620 and 1623 may apply, depending on what was transferred. The period is generally one month or 30 days from the required written notice, so immediate advice and a valid tender are important.

What if the property is already titled in the buyer’s name?

Registration does not by itself answer whether the buyer acquired the excluded heirs’ shares. The title history, annotations, possession, buyer’s good faith, and source deed must be examined. Court action is normally required to cancel or correct an issued title.

Must heirship first be declared in a separate case?

Not always. Under Treyes v. Larlar, when no estate or heirship proceeding is pending, compulsory or intestate heirs may bring an ordinary civil action to enforce ownership acquired by succession without first securing a separate declaration of heirship. The ruling in that action binds the parties and addresses the relief actually litigated.

Can one heir force a partition even if the family wants to keep the property?

Generally, yes. No co-owner is ordinarily required to remain in co-ownership indefinitely. Limited agreements or testamentary prohibitions against partition may be valid for the periods allowed by law.

Does the Rule 74 two-year period end every excluded heir’s claim?

No. It governs the particular Rule 74 remedy and lien. Other actions may follow different prescription rules, especially where a void instrument, fraud, repudiation of co-ownership, reconveyance, or an innocent purchaser is involved.

Can the heirs have the Register of Deeds cancel the sale themselves?

Usually not. The Registry of Deeds performs a registration function and ordinarily cannot resolve a contested ownership dispute requiring evidence. A court judgment or another legally sufficient instrument is generally necessary.

Official legal sources

This article provides general legal information, not legal advice or an attorney-client relationship. The correct remedy depends on the title, deed, estate records, possession, parties, and dates. Philippine legal sources and procedures were checked as of July 31, 2026.