RA 9266, the Architecture Act, read for a house owner
Republic Act 9266 of 2004 regulates who may practise architecture in the Philippines. Most of it is about examinations and the Board, but a handful of its sections decide things a house owner meets directly: who may design the house, what has to be printed on the plans, the contract, and who owns the drawings afterwards. Each row below carries the section it comes from.
Short answer: RA 9266 regulates who may practise architecture. For a house owner it means the seal and license lines must appear on the plans, a written contract comes first, and the signed drawings remain the architect's intellectual property. A license can be checked by name on the Professional Regulation Commission's verification page.
RA 9266, section by section, from the client's side
Each row gives the point, the rule in short, and the section it comes from.
Who may design your house
| Point | In short | Source and condition |
|---|---|---|
| Preparing architectural plans for any building | a registered architect | Section 25: no one may practise architecture, prepare architectural plans for the erection or alteration of a building, or use the title "Architect" without a Certificate of Registration and Professional Identification Card |
| What counts as the practice | design to supervision | Section 3(3) and (4): planning, design, specifications, consultation and advice, cost estimates and supervision of the erection, enlargement, renovation or alteration of a building |
| Someone unregistered offering the same service | not allowed | Section 34: may not claim their work is equivalent to a registered architect's, even without using the title. Section 31: soliciting architectural work counts as offering to practise |
| Collecting a fee for architectural services | registered architects only | Section 36: an unregistered person may collect it only as an employee acting for a registered architect |
| Other professions | their own sheets | Section 43: the Act does not prevent the practice of any other legally recognised profession. It does not let them sign the architectural sheets: in DPWH v. PICE (2023) the Supreme Court held that only registered and licensed architects may prepare, sign and seal those |
What to look for on the plans
| Point | In short | Source and condition |
|---|---|---|
| The seal | name, registration number, "Architect" | Section 20: on all architectural plans, drawings, specifications and contract documents prepared by the architect or under their direct supervision |
| Printed on the documents they sign | license details and tax receipt | Section 21: the Certificate of Registration and Professional Identification Card, the date of issue and validity, and the professional tax receipt number. Section 20(5) adds the card number and its expiry date |
| A seal on an expired or revoked license | unlawful | Section 20(1): the seal may be used only while the certificate is in force, or after it is renewed or re-issued |
| Plans the permit office may accept | only those prepared under the Act | Section 20(2): no officer enforcing building laws shall accept or approve architectural plans or specifications not prepared and submitted in full accord with the Act |
| One architect signing another's work | only the part they did | Section 32 and Section 20(3): the signature must show clearly which part of the work the signer actually performed |
Your agreement and your plans
| Point | In short | Source and condition |
|---|---|---|
| A written contract | before the work starts | Section 30: to "entice, compel, coerce, require or otherwise force" an architect to work without first executing a written contract is a misdemeanour. Section 3(10) defines the service agreement as "a duly notarized written contract or equivalent public instrument", and Section 23(e) lets the Board suspend an architect who works without one |
| Who answers for the design | the architect-of-record | Section 3(2)(a): the architect directly responsible for the total design, who "shall assume the civil liability" for the plans and documents they signed and sealed |
| Who owns the signed plans | the architect | Section 33: they are the architect's intellectual property as instruments of service, whether or not the building is built |
| Building the same design again | written consent needed | Section 33: copying the documents to repeat the design on another project, in part or in whole, is unlawful without the architect's written consent, and every contract must say so |
| Hiring a firm | architects hold three quarters or more | Section 37: only Filipino registered architects, alone or with allied professionals, may form a firm for the practice, registered architects must make up at least three quarters of its owners, directors and officers, and it registers with the SEC and the Board |
If the Act is broken
| Point | In short | Source and condition |
|---|---|---|
| Practising without a license, or using another's seal | a misdemeanour | Section 29: a fine, imprisonment of six months to six years, or both, at the court's discretion; the Professional Regulation Commission brings the charge |
| Knowingly using unlicensed plans | covered by the same section | Section 29 also names "any person" who "knowingly allows the use, adoption, implementation of plans, designs or specification made by any person, firm, partnership or company not duly licensed" |
How to check an architect's license
- Read the license lines on the plans. Section 21 puts the Certificate of Registration and Professional Identification Card, with their dates, and the professional tax receipt number on the documents the architect signs, and Section 20 puts the name and registration number on the seal.
- Open the Professional Regulation Commission's online verification page and choose verification of license by name. It asks for the profession, a first name and a last name.
- Check that it lists an architect by that name, and compare any number it shows with the seal. The search by license number also asks for the professional's birth date, so the name search is the one a client can run alone. The page can also check the identification card by scanning its barcode.
The Commission's page carries its own disclaimer that its records can be delayed or contain errors, so a mismatch is a question to ask, not proof of anything. An architect should be able to show the card itself.
What this means when you hire for a house
- Put it in writing first. Section 30 makes it a misdemeanour to press an architect to work without first executing a written contract, and Section 23(e) holds the architect to the same rule. A written scope is also what settles later what was and was not included. The architect fees guide covers what the fee pays for.
- The drawings stay the architect's. Under Section 33 the signed drawings remain the architect's intellectual property, so building the same design on a second lot needs their written consent. You keep your copies and build this house from them; what the architect keeps is the right to the design. Agree it at the start if you expect to repeat the house.
- Ask who signs, and check them. Ask who will sign and seal the architectural sheets, and check that license as above. Section 29 reaches anyone who knowingly allows plans by someone unlicensed to be used.
- The architect is not the only signatory. Section 43 leaves the other professions in place: the structural, electrical, sanitary, plumbing and mechanical sheets are signed by the professionals whose licenses cover them. The house plan guide lists who signs each sheet, and what the Supreme Court settled in DPWH v. PICE (2023) about the architectural ones.
- The builder is a separate license. The contractor who builds the house holds a PCAB license, not a PRC one; the contractor guide covers how to check it.
Our custom house design service runs from the brief and concept through revisions to a final drawing set ready for the permit or for contractor quoting, and permit and documentation assistance prepares and files the architectural drawings for the permit. Ask what the scope includes before any drawing starts.
What this page does not cover
- The profession's own rules. The examination, the Board, continuing professional development, foreign architects and temporary permits are in the Act and its implementing rules, and are not summarised here.
- The fine amounts. Sections 29 and 30 set fines, in the Act's text linked below.
- A dispute over a design. Liability for a building that fails is also governed by the Civil Code, which the contractor guide sets out, and a complaint against an architect is a sworn written charge filed with the Secretary of the Board of Architecture (Section 23).
Source: Republic Act No. 9266, the Architecture Act of 2004, as published by the Lawphil Project. The license check describes the Professional Regulation Commission's verification page as it stood on 26 September 2026.