A signature and a seal on every sheet is a licensed professional saying "I prepared this, or I directly supervised it." That's all it means, and it's a lot. Illustrative photo.
Short answer: no single professional signs a whole permit set. Under Section 302(3) of the 2004 Revised IRR of PD 1096, the architect signs the architectural sheets, the civil engineer the civil and structural sheets, a Professional Electrical Engineer the electrical, a Professional Mechanical Engineer the mechanical, a Sanitary Engineer the sanitary, a Master Plumber the plumbing, an Electronics Engineer the electronics, and a Geodetic Engineer the lot survey. The old argument over whether a civil engineer may also sign the architectural sheets is over: the Supreme Court said no in G.R. Nos. 200015 and 205846 (decided March 15, 2023, reconsideration denied with finality on October 30, 2024), and DPWH told every Building Official to implement it in February 2025. For a 120 sqm two-storey house with aircon, the full signed set comes to roughly ₱193,000 to ₱362,000 in professional fees on the numbers in the checker below.
The checker takes your building type, size and systems and lists every sheet group, who has to sign it, and a fee range. The sections after it cover what the seal and PTR actually prove, why "pirma lang" is a bad deal for you as well as illegal for them, and how to look up a licence in two minutes.
Sheet groups and signatories are read from Section 302 of the 2004 Revised IRR of PD 1096 and the licensing laws. The structural fee is AEDO's published price. Every other peso figure is an AEDO 2026 planning range, not a quotation and not a regulated rate.
A building permit in the Philippines is really a bundle of permits, and the plans come in groups. Section 302(3) of the 2004 Revised IRR of PD 1096 requires five sets (four under JMC 2018-01) of survey plans, design plans, specifications and other documents "prepared, signed and sealed over the printed names" of the licensed professionals, and then assigns each group to one profession. Sections 302(4) to (11) list what goes into each group. Here is the whole map:
| Sheet group (Revised IRR §302) | What's in it | Who signs and seals |
|---|---|---|
| Lot survey plans, §302(11) | Vicinity map, lot plan, relocation survey, line and grade, topographic plan | Geodetic Engineer, §302(3)(a) |
| Architectural, §302(4)(a) | Vicinity map, site development plan, perspective, floor plans, elevations, sections, reflected ceiling plans, details, door and window schedules, finishes | Architect, §302(3)(b) |
| Accessibility and fire safety documents, §302(4)(c)–(e) | BP 344 facility plans and details; floor layouts showing evacuation routes, extinguishers, fire exits, fire-resistive construction | Architect (part of the architectural documents) |
| Architectural interiors, §302(4)(b) | Space plans, interior layouts, interior elevations, furniture and finish plans | Architect or interior designer, §302(3)(b) |
| Civil/structural, §302(5) | Foundation plans, floor and roof framing plans, structural details and schedules, structural analysis and design, boring and load tests, seismic analysis | Civil Engineer, §302(3)(c) |
| Electrical, §302(6) | Layouts, load schedules (including generators and UPS), design analysis, one-line diagram | Professional Electrical Engineer, §302(3)(d) |
| Mechanical, §302(7) | Aircon and ventilation, ductwork, elevators, fuel and gas piping, pressure vessels, fire suppression systems | Professional Mechanical Engineer, §302(3)(e) |
| Sanitary, §302(8) | Deep wells, water systems, drainage and sewer systems, sewage treatment plants | Sanitary Engineer, §302(3)(f) |
| Plumbing, §302(9) | Water supply, fixtures, sanitary drainage and vent, storm drainage, isometrics | Master Plumber, §302(3)(g) |
| Electronics, §302(10) | Telecom and data, CCTV and security, electronic fire alarm, sound systems, building automation | Electronics Engineer, §302(3)(h) |
Two details trip people up. First, the fire side is split three ways: the fire safety layout sheets (evacuation routes, exits, extinguisher locations) are architectural documents under §302(4)(e); the detailed plans of fire suppression systems are mechanical under §302(7)(k); and an electronic fire alarm is an electronics document under §302(10). Second, for a building that needs a wet standpipe, sprinklers or automatic fire detection, the BFP also wants a Fire Safety Compliance Report before it issues the Fire Safety Evaluation Clearance, signed by the engineer or architect-of-record and a BFP-accredited Fire Safety Practitioner (2019 Revised IRR of RA 9514, Sections 9.0.3.1 and 9.0.3.2). The FSEC is a prerequisite for the building permit.
Each licensing law says the same thing in its own words about the seal on those sheets. RA 8495 Section 24 and RA 7920 Section 26 require the mechanical and electrical engineer's seal to be stamped on every sheet when filed with government authorities. RA 7920 Section 34 says no electrical installation shall be undertaken unless its plans were prepared by or under the responsible charge of, and signed and sealed by, a Professional Electrical Engineer. RA 8495 Section 35 says the same for mechanical works and a Professional Mechanical Engineer. For small mechanical work there's one carve-out: under §302(7)(j) of the IRR, installations of at most 14.9 kW may be signed by a licensed Mechanical Engineer, except pressure vessels, elevators, escalators, dumbwaiters, central, split and packaged aircon, and steam, gas or fuel piping. So even a house with one split-type unit is back to a PME.
A civil engineer signs the civil and structural sheets: foundations, framing, structural details and the structural analysis. That has never been in dispute. What was in dispute for almost twenty years was whether a civil engineer could also sign the architectural sheets, the floor plans, elevations and sections that most homeowners think of as "the plans." That question now has a final answer, and the answer is no.
Here's how it got there, all dates from the Supreme Court's decision and DPWH's circular:
Two practical points from the DPWH circular. It says plans already approved by the Building Official, where the complete requirements were submitted as of the finality of the judgment, shall be honored (item 4). So a permit issued years ago on civil-engineer-signed architectural sheets isn't suddenly void. And it leaves individual contested cases to the Building Official handling them, with appeal to the DPWH Secretary (item 5). If you're mid-application and your architectural sheets carry only a civil engineer's seal, expect the OBO to ask for an architect's.
One more thing the case settled, which surprises engineers more than owners: the Court ruled that the official text of Section 302 of PD 1096 itself is the version published in the Official Gazette, which mentions only mechanical and electrical engineers. The phrase "licensed architect or civil engineer in case of architectural and structural plans," found in other copies, has no legal effect. The architect and civil engineer assignments you see on OBO checklists come from the IRR, now upheld, and from RA 9266 and RA 544.
Nothing in the ruling moves the structural sheets. Section 302(3)(c) of the IRR still assigns civil/structural documents to the civil engineer, and the list of architectural documents in the Court's ruling (the §302(4) list) doesn't include foundation or framing plans. An architect's seal on a structural analysis is the mirror-image problem, and an OBO shouldn't accept it either.
If your project needs a building permit and has architectural sheets, yes, you need an architect for those sheets. RA 9266 Section 20(5) reads: "All architectural plans, designs, specifications, drawings and architectural documents relative to the construction of a building shall bear the seal and signature only of an architect registered and licensed under this Act." Section 20(2) adds that no government officer enforcing building laws shall accept or approve architectural plans not prepared and submitted in full accord with the Act. We found no floor-area exemption for the architectural set in Section 302.
The only size exemption we found in Section 302 is narrow and it's structural. Section 302(5)(c) requires a structural analysis and design for all buildings "except for one storey and single detached building/structure with a total floor area of 20.00 sq. meters or less." That waives the computations for a very small detached structure. It doesn't waive the structural plans, and it doesn't touch the other sheet groups.
Can one engineer sign everything? Only if that one person holds every licence involved, which in practice doesn't happen. A civil engineer who is not also a Professional Electrical Engineer can't seal the electrical sheets; RA 7920 Section 32(g) says no person shall sign a document involving electrical design "on behalf of a professional electrical engineer." What one office can do is run the whole set: draw it as one coordinated package and bring in each licensed professional to prepare or supervise, and then seal, their own discipline. That's how firms (including us) deliver a "complete" permit set. Our coordination guide explains why the sheets need to agree with each other, not just carry the right seals.
Firms themselves don't hold a seal. RA 1582, which rewrote Section 24 of RA 544, lets civil engineers and architects form a firm using the term "Engineers" or "Engineers and Architects," but says the civil engineer members "shall only render work and services proper for a civil engineer" and the architects likewise, with each member "responsible for their own respective acts."
People ask what makes a plan "officially" sealed. It's four things on the sheet, each from a different law:
Figure III.2 of the IRR, the model title block, has spaces for PRC No., Validity, IAPOA No., O.R. No., Date, PTR No., Date, Place and TIN. The IAPOA number is for architects: RA 9266 Section 3(11) defines the Integrated and Accredited Professional Organization as the national organization all registered architects belong to.
What a seal doesn't mean: it isn't a warranty that the design is good, and it isn't a stamp an office sells. It's the professional's legal statement that the sheet is their work or was done under their direct supervision. That's why the next section matters.
Most towns have someone who will "sign lang" plans somebody else drew. Owners hire them because it's cheap and fast. Here's what the law says about the arrangement, sheet by sheet:
Using someone else's plans raises a separate problem. RA 9266 Section 20(4), repeated in Section 33, says signed and sealed drawings are the architect's intellectual property, and makes it unlawful to copy them for use on another project without the author's consent. So "just use the plans from my cousin's house" can be a violation even before anyone signs them.
The part owners miss is that this is their risk too. Civil Code Article 1723 makes the engineer or architect who drew up the plans liable if the building collapses within fifteen years of completion "by reason of a defect in those plans and specifications, or due to the defects in the ground." If the signer never checked the design, that liability sits with someone who never looked at your building. The article also makes a supervising engineer or architect solidarily liable with the contractor, and says acceptance of the building doesn't waive the claim. Our Article 1723 guide walks through the two deadlines.
We found no PRC board resolution on plan-stamping that we could read and cite in full, so we've kept this section to what the statutes themselves say.
No provision we read requires the designing engineer or architect to visit your lot before sealing. But the design depends on the site, and the documents make that explicit. The structural set includes boring and load tests: Section 302(5)(d) requires boring tests, and load tests if necessary, for buildings of three storeys and higher, and soil exploration for lower buildings in areas with geological or geotechnical hazards. The architectural site development plan has to show the building's position on the lot, its boundaries and its distances to existing buildings. Those come from a geodetic engineer's survey, not from a guess. Our soil boring test guide covers what the test costs and when it's worth doing even below three storeys.
Construction is a different matter, and here the law is clear. Section 308 of PD 1096 and its IRR says the owner "shall engage the services of a duly licensed architect or civil engineer to undertake the full time inspection and supervision of the construction work." That person may or may not be the designer. A logbook of actual progress, tests and weather has to be kept on site, and at the end the architect or civil engineer submits it signed and sealed to the Building Official with a Certificate of Completion. That's one of the documents the occupancy permit depends on.
So if you're building far from the designer, which is common for OFW families and for anyone outside the designer's province, the arrangement that works is a designer who gets proper site data (survey, soil information, photos, a site visit where the site calls for it) plus a licensed architect or civil engineer on site for supervision. What doesn't work is a signature on plans that no one fitted to your lot, and nobody on site to catch the mismatch.
Two minutes, before you pay anyone:
PRC's own page carries a disclaimer that human or mechanical error and delays in posting are possible, so if a licence doesn't come up, ask the professional for their certificate of registration before assuming the worst.
Professional fees for the full set come in two very different shapes, which is why quotes confuse people.
The percentage shape. A complete permit-ready set from one office, architectural plus structural plus electrical plus sanitary, commonly runs 8% to 12% of construction cost, with architectural alone at 5% to 7% and structural alone at 2% to 3%. Those are market bands, not regulated rates; our house design fee guide explains why the Standards of Professional Practice leave the percentage to the professional guidelines, and our structural engineer fee guide works through the fee schedules.
The fixed-price shape. For structural design, AEDO publishes a flat price on our structural design page: ₱7,500 up to 150 sqm, then ₱50 per sqm up to 500 sqm, sealed plans and design report in 3 working days once the architectural plans are in, for regular buildings up to 3 storeys. Larger, taller or irregular buildings are quoted per project. That's well below the 2–3% band. Together with the lower MEPFS fees on small buildings, it's why the checker's total for a typical house comes in at about 6% to 8% of construction cost, under the one-office 8–12% band.
| Line | Basis used in the checker |
|---|---|
| Architectural (Architect) | 5% of the low to 7% of the high construction-cost band (house, small commercial and renovation ₱27,000–₱38,000/sqm; warehouse ₱14,000–₱26,000); lump-sum floor ₱55,000; renovation × 1.4 |
| Civil/structural (Civil Engineer) | AEDO published price: ₱50 × floor area, minimum ₱7,500; renovations add the ₱5,000 structural assessment first |
| Electrical, mechanical/ACMV, plumbing and sanitary, fire protection | The formula in our MEPFS design fee guide: per-sqm rates with minimum fees, building-type factors (a house is 0.5 to 0.6 of a commercial building), a 3% uplift per storey above the first, generator and elevator add-ons, and 5% coordination |
| Fire Safety Compliance Report | ₱15,000–₱35,000 |
| Electronics (Electronics Engineer) | ₱30–₱60 per sqm, minimum ₱8,000–₱15,000 |
| Lot survey plan (Geodetic Engineer) | ₱10,000–₱15,000 if you don't have one |
Everything in that table except the structural line is an AEDO 2026 planning range, not a market survey and not a quote. The construction-cost bands sit inside the published 2026 bands in our cost per square metre guide. For the default house in the checker (2 storeys, 120 sqm, aircon), the architectural line is ₱162,000 to ₱319,200, structural ₱7,500, electrical ₱4,000 to ₱6,000, mechanical ₱5,000 to ₱7,500, plumbing and sanitary ₱4,000 to ₱6,000, MEPFS coordination ₱650 to ₱975 and the survey ₱10,000 to ₱15,000: ₱193,150 to ₱362,175 in total. The architectural fee is most of it. On a small house the engineering sheets are cheap next to it, which is why "the plans cost ₱300,000" and "the engineer charged ₱7,500" can both be true. Soil tests, VAT, printing and the permit fees themselves are on top; see our building permit guide for the filing side and the ancillary permits guide for the separate permits each sheet group feeds.
What AEDO signs, and what we coordinate. AEDO's engineers are licensed civil engineers, so the seal we put on your set is the civil/structural one, prepared in-house to NSCP 2015. For a complete permit set we coordinate the other disciplines with their own licensed architect, electrical, mechanical and plumbing professionals, each preparing and sealing their own sheets. Design and plans are available nationwide. In Negros Oriental we also build; outside it, we provide the design and remote review, and a local licensed architect or civil engineer handles the full-time supervision Section 308 requires.
Can a civil engineer sign my house plans in the Philippines?
A civil engineer signs and seals the civil and structural documents: foundation plans, framing plans, structural details and the structural analysis. Since the Supreme Court decision in DPWH v. PICE (G.R. Nos. 200015 and 205846, March 15, 2023), which became final when the Court denied reconsideration with finality on October 30, 2024, a civil engineer can no longer sign the architectural documents listed in Section 302(4) of the 2004 Revised IRR of PD 1096, such as the floor plans, elevations, sections and site development plan. Those must carry an architect's seal. DPWH told all Building Officials to implement this in NBCDO Memorandum Circular No. 01, series of 2025.
Do I need an architect for a small house?
For the architectural sheets, yes. Section 302(3) of the Revised IRR assigns architectural documents to the architect, and Section 20(5) of RA 9266 says architectural plans relative to the construction of a building shall bear the seal and signature only of a licensed architect. We found no floor-area exemption for the architectural set in Section 302. The one size exemption we found is narrower: Section 302(5)(c) waives the structural analysis, not the plans, for a one-storey detached structure of 20 sqm or less.
Can one engineer sign all my building plans?
No. Each group of sheets is signed by the professional its own law assigns: architect for architectural, civil engineer for civil and structural, Professional Electrical Engineer for electrical, Professional Mechanical Engineer for mechanical, Sanitary Engineer for sanitary, Master Plumber for plumbing, Electronics Engineer for electronics, and a Geodetic Engineer for the lot survey plan. One person can sign more than one group only if they hold each of those licences. What one office can do is coordinate the whole set and bring in the other licensed professionals.
What do the PRC number, PTR and seal on a building plan mean?
The seal carries the professional's name, registration number and title, and the licensing laws make it unlawful to seal documents after the certificate has expired or been revoked. RA 9266 Section 21 and RA 7920 Section 27 require the licence number and its validity on documents the professional signs. The PTR is the Professional Tax Receipt: under Section 139 of the Local Government Code the professional tax is paid annually, and the receipt number must be written on plans and designs. The model title block in Figure III.2 of the Revised IRR has spaces for the PRC number and validity, the PTR number, date and place, and the TIN.
Is it legal to pay an engineer just to sign my plans (pirma lang)?
No. The licensing laws tie the seal to work the professional prepared or supervised. RA 7920 Section 29 makes it a ground for revoking a Professional Electrical Engineer's certificate to sign and seal a plan not prepared by him or not executed under his immediate supervision. RA 9266 Section 20(3) makes it unlawful for anyone except the architect-of-record to sign for work not actually performed by him or her. RA 544 Section 14 ties the civil engineer's seal to plans prepared by or under the engineer's direct supervision. Civil Code Article 1723 also makes the designer liable for 15 years for a collapse caused by defects in the plans or in the ground, so a signer who never checked the design is still the one on the hook.
How do I check if an engineer or architect is licensed?
Use the PRC's online verification page at verification.prc.gov.ph. Its licence-number search asks for the profession, the licence number and the professional's birthdate, so ask for the PRC ID and compare the name and validity with the seal and title block on your plans. Check that the licence was valid on the date the plans were sealed, because sealing with an expired certificate is unlawful under the licensing laws.
Laws, implementing rules, court decisions and issuances read for this article. External links open in a new tab.
Every peso figure except AEDO's published structural price is an AEDO 2026 planning range, not a regulated rate or a market survey. We did not find a PRC board resolution on plan-stamping, a rule requiring the designer to visit the site, or a floor-area exemption for the architectural set that we could read and cite, so none is claimed. This article is general information, not legal advice; for a disputed application, the Building Official and, on appeal, the DPWH Secretary decide.
Sealed NSCP 2015 structural plans and design report in 3 working days once your architectural plans are in, prepared by the licensed civil engineer who signs them.
