How Much Does an Architect Cost in Sri Lanka in 2026?
Before a single mason picks up a trowel, most homeowners pay for two things: a house plan, and someone qualified to get it approved. In 2026, a basic house plan for permit purposes costs roughly Rs 20-100 per square foot of built-up area. A full design service — concept design plus working drawings — typically runs 2-4% of your construction cost. If you want the architect to also supervise the build, that rises to 5-8%, following the fee scale published by the SLIA (Sri Lanka Institute of Architects).
That is the short answer. This guide breaks down each pricing model with worked numbers, because architect fees confuse people in a way mason day-rates don't — a percentage-of-construction-cost is a completely different animal from a per-square-foot drawing fee, and most homeowners never find out which one they're being quoted until the invoice arrives.
Architect fees are the first real cost most people face before a house build — well before the construction costs themselves, which start once the plan is approved and the foundation is dug. Get this decision right first; everything downstream depends on the plan.
| Service | 2026 basis | Typical cost |
|---|---|---|
| Basic house plan (permit only, single storey) | Rs 20-100 per sq ft | Rs 30,000 – 150,000 for a 1,500 sq ft house |
| Structural drawings + chartered engineer certification (two-storey or complex) | Fixed / per-drawing-set | Rs 15,000 – 45,000 add-on |
| Full design service (concept + working drawings, no supervision) | % of construction cost | 2% – 4% |
| Full design + site supervision through completion | % of construction cost | 5% – 8% |
| Local authority plan approval / processing fee (paid to the council, not the architect) | Flat / per sq ft | Rs 5,000 – 25,000 |
| Building application form | Flat | Rs 300 – 500 |
Outstation districts and simpler single-storey designs tend to sit toward the lower end of each range; Colombo-based chartered architects and anything requiring UDA (Urban Development Authority) clearance sit toward the top.
Basic House Plan: What You Pay Just to Get a Permit
If all you need is a straightforward set of drawings to satisfy your local authority — floor plan, elevations, a section, and a block/siting plan — you don't necessarily need a full architectural design service. Many homeowners building a modest single-storey house use a qualified technical officer or licensed draughtsman instead of a chartered architect, and this is reflected in the pricing: Rs 20-40 per sq ft at the technical-officer end of the market, rising to Rs 60-100 per sq ft for a chartered architect's basic plan.
For a typical 1,500 sq ft single-storey house, that works out to:
| Drawn by | Rate | Cost for 1,500 sq ft |
|---|---|---|
| Technical officer / licensed draughtsman | Rs 20 – 40/sq ft | Rs 30,000 – 60,000 |
| Chartered architect (basic plan only) | Rs 60 – 100/sq ft | Rs 90,000 – 150,000 |
This covers the drawings only, not the local authority's approval fee (see below) or structural engineering. The moment you go to a second storey, or your design has long spans, cantilevers, or unusual loads, most council approval processes require a chartered structural engineer to certify separate structural drawings (foundation, beam, column and slab details). Budget Rs 15,000-45,000 on top of the basic plan for that — simple certification for a straightforward house at the low end, a full structural drawing set for a two-storey house at the high end.
The Percentage-of-Construction-Cost Model
This is the model most established architects actually quote from, and it is the one that confuses first-time builders the most, because the fee isn't fixed until your construction cost is.
The SLIA (Sri Lanka Institute of Architects) publishes a Recommended Professional Fees and Conditions of Engagement scale — the same kind of percentage-of-construction-cost model used internationally (RIBA in the UK, AIA in the US work the same way). It is a guideline, not a legally binding price control, but it is the reference point most chartered architects quote against, with individual rates adjusted for the architect's reputation, the project's complexity, and how much of the job they actually do.
In practice, the percentage depends heavily on scope:
- Design only — concept design, working drawings, and support through the permit process, but no involvement once construction starts — typically 2-4% of construction cost.
- Full service — design, working drawings, a bill of quantities or tender documents, and site supervision through to completion — typically 5-8% of construction cost.
Two things catch people out. First, the percentage does not shrink much for a smaller house — an architect's baseline work (site visits, drawing sets, permit liaison) is similar whether the house is 1,200 or 3,000 sq ft, so smaller and simpler projects tend to land at the higher end of each band. Second, "full service" includes ongoing site visits during construction — real, billable time over many months, not a one-off design fee.
Worked Example: Architect Fees on a 1,500 sq ft House
Using the same house size and the same construction-cost bands from our house construction cost guide, here is what the percentage model actually costs in rupees:
| Finish level | Construction cost (1,500 sq ft) | Design-only fee (2-4%) | Full service fee (5-8%) |
|---|---|---|---|
| Basic | Rs 8.5 – 11 million | Rs 170,000 – 440,000 | Rs 425,000 – 880,000 |
| Standard | Rs 12 – 18 million | Rs 240,000 – 720,000 | Rs 600,000 – 1.44 million |
| Luxury | Rs 20 million+ | Rs 400,000+ | Rs 1 million+ |
A homeowner building a standard-finish 1,500 sq ft house should reasonably expect to pay somewhere in the Rs 240,000-720,000 range for design-only work, or Rs 600,000-1.44 million for a full design-and-supervision package. That is wide on paper, but it narrows fast once you get an actual written fee proposal — which is the point of comparing quotes rather than trusting a single number.
Compare that to the basic-plan-only route: Rs 30,000-150,000 for drawings alone, no ongoing involvement, no supervision. For a simple single-storey house you plan to manage yourself or through a trusted contractor, that route can be entirely appropriate.
Permit and Approval Fees Are a Separate Line Item
Whichever route you take, budget separately for what the local authority charges to approve your plan — this money goes to the Pradeshiya Sabha, Urban Council, Municipal Council, or the UDA for sites within its jurisdiction, not to your architect.
- Building application form: Rs 300-500 (plus VAT), obtained from your local council office
- Plan processing / approval fee: typically Rs 5,000-25,000 in total for a standard residential house, often calculated per square foot of built-up area (commonly in the Rs 5-25/sq ft range) plus fixed administrative charges
- UDA jurisdiction: sites within Urban Development Authority zones can carry additional processing fees on top of the local council's own charges
None of this is optional, and none of it is your architect's fee — it is the cost of the permit itself, on top of whatever you agree to pay for the design.
Getting a Fair Architect Quote
Because "architect fees" can mean three different pricing models, insist on clarity before you sign anything:
- Is this a flat fee, a per-sq-ft drawing fee, or a percentage of construction cost — and percentage of what (estimated, tender, or final cost)?
- Does it include structural drawings and certification, or is that a separate engineer's invoice?
- Does it include site supervision during construction, or design only?
- Is the local authority's approval fee included, or on top?
Compare at least two or three proposals on the same scope — the gap between a basic permit-only plan and a full design-and-supervision service explains almost all of the difference between two quotes that otherwise look wildly different.
Browse verified architects in Colombo on SnapWerks, or post your house plan job for free — describe your project and land size, and architects near you will send quotes to compare. No fees, no obligation to hire.
Once your plan is approved, the next real cost is the build itself — see our house construction cost guide for 2026 per-square-foot rates.
Prices in this guide are 2026 planning estimates based on the SLIA fee scale, published permit-fee ranges and market listings, and vary by architect, district and project complexity. Always confirm the exact fee basis in writing before committing.