Restoration / Architecture · Design and Construction
Guide · YOY Mimarlık
Architectural Fees and Construction Cost: What to Know
How is an architectural fee set, what does building a house or villa actually cost, how much floor area does your plot allow, and how does the permit process work? A comprehensive roadmap grounded in current planning regulation, answering the questions asked most often.
What determines an architectural fee?
There is no single fee that applies to every architect and every building. What sets the fee is the building’s gross floor area, its type, the complexity of the design, the condition of the plot, the intended design standard and the scope of services commissioned from the architect. Preparing only the permit drawings is not priced the same as a full service that also covers concept design, construction details, 3D visualisation, quantity take-offs and site supervision.
For that reason, the question worth asking when comparing quotes is not “what is the fee per square metre?” but “what exactly is included in that fee?”. In Turkey, the Ministry of Environment, Urbanisation and Climate Change publishes approximate unit construction costs by building class every year, for use in calculating architectural and engineering fees. These figures are not turnkey market sale prices; they are the official reference values used to compute professional fees.
What does it actually cost to build a house or villa?
Knowing the floor area alone is not enough to produce a reliable total cost. Two houses of the same size can differ substantially because of the foundation system, the number of storeys, the facade material, the quality of the joinery, the heating and cooling system, the kitchen and bathroom standard, the flooring, the landscaping and the site conditions.
A sound estimate is built from: gross floor area × the approximate unit cost for the target building standard + design and permit costs + site and infrastructure costs + bespoke work + a contingency allowance. Usable “net area” and “gross construction area” are not the same thing, and any quote should state clearly which one it means.
The phrase “turnkey” also has no single standard scope in the market. A quote should spell out, item by item, whether it includes the foundation, the shell, the roof, the facade, the joinery, the mechanical and electrical installations, floor and wall finishes, the kitchen, the bathroom, fitted furniture, lighting, landscaping, retaining structures, and design/permit fees — otherwise the “price per square metre” quoted by two firms may not describe the same product.
How much can you build on your plot?
Knowing the title-deed area of a plot is not enough on its own. What must be examined first is the plot’s zoning status, the permitted use, the floor area ratio (emsal/KAKS), the site coverage ratio (TAKS), the storey or height limit, the front/side/rear setback distances, and any special plan notes.
Emsal/KAKS is the ratio of the building’s total floor-area-ratio area to the plot area: on a 500 m² plot with an emsal of 0.80, the first theoretical figure is 500 × 0.80 = 400 m² of ratio-counted floor area. TAKS is the ratio of the building’s footprint to the plot area; on the same plot with a TAKS of 0.30, the footprint can be roughly 150 m² at most.
Neither figure by itself means “you can build 400 m² net”. Setback distances, the storey limit, parking requirements, stair and lift cores, and the plot’s geometry all constrain the design. The amendment to the Planned Areas Zoning Regulation published in the Official Gazette of 1 July 2026 (no. 33297) has again clarified which areas — pergolas and ornamental pools that do not form an independent unit, entrance canopies, certain roof areas and specific shared-use areas — are excluded from the ratio calculation, and set out rules for plots where the plan does not state a TAKS/KAKS value. Whether balconies, terraces, basements and parking count toward the ratio depends on how they are used, their size and their position — it is not a single rule to memorise.
The safest approach is therefore to commission a zoning and architectural feasibility study, using the plot’s cadastral reference, before buying. That study establishes, in concrete terms, the total building right, the approximate footprint, the number of storeys, the approximate gross usable area and how much garden will remain.
The permit process and the projects it requires
The first step toward building a house is not digging the foundation or signing with a contractor; it is confirming that the plot is legally and zoning-wise buildable. The process generally runs: gathering title and zoning information → reviewing the zoning status → drawing up the brief → architectural pre-design → ground survey and other engineering studies → construction/permit drawings → approvals and permit → construction.
A permitted building process typically involves an architectural project, a structural project, electrical and mechanical installation projects, and a ground/foundation survey, accompanied by the title deed, the zoning status, setting-out and level information, and any documents the authority requires. These projects are prepared by licensed engineers in their own field; architectural design is one of the main references coordinating these disciplines, but the architect does not replace those engineers.
Projects are prepared in line with the zoning plan in force, its notes and the relevant regulations, and are then submitted to the municipality; the authority asks for corrections where something is missing and issues the permit once the file is found in order. Work subject to a permit should not begin before the permit is issued, and since the list of required documents can vary between authorities, assuming “every municipality asks for the same paperwork” is not safe.
Once construction is complete, an occupancy permit — the building-use permit that certifies conformity with the permit and the approved projects — is obtained. A decision that does not affect the project, such as a paint colour, is not the same as one that changes a column, the facade, the floor area or the structural system; the latter requires a project revision and the necessary approvals before it is built. The 1 July 2026 amendment has also clarified the rules for re-permitting buildings whose permit has lapsed and for renovation work on existing buildings.
The cost of renovation
Renovation cost is not set by the flat’s floor area alone. There can be a difference of several multiples between a 100 m² flat that only gets painted and a 100 m² flat where the wiring, plumbing, kitchen, bathrooms, doors, floors and fitted furniture are all replaced.
A sound renovation budget is broken down into demolition and stripping-out, debris removal, wall and plastering work, electrical installation, clean and foul water plumbing, heating and air conditioning, waterproofing, flooring, plaster and paint, doors, kitchen, bathroom, fitted furniture and lighting. Changes that affect the structural system or the permitted project should not be treated as ordinary decoration.
In bathrooms and kitchens, waterproofing in particular is invisible but among the most critical items; a leak that appears later can seriously damage the flat below and neighbouring spaces. In older buildings, plumbing problems, damp or structural damage revealed once finishes are stripped out can also add cost. The most reliable answer to “what will it all cost?” is therefore not a round figure given without a site visit, but an itemised list drawn up after one.
Reinforced concrete, steel and prefabricated: choosing a structural system
Reinforced concrete, light-gauge steel and prefabricated systems can each produce a safe building when the engineering and the workmanship are right; judging safety by material alone is misleading. Ground conditions, the structural design, the building’s geometry, material quality, connection detailing, workmanship and inspection all matter together.
Reinforced concrete is the most common system in Turkey; access to materials and contractors is easy and it suits a wide range of architectural solutions, though the site programme is relatively long because it involves formwork, reinforcement, concreting and curing in sequence. Light-gauge steel systems gain speed from low structural weight and factory-controlled production; correct design and connection detailing are what matter most. According to publicly reported information, a new regulation setting out the design, calculation and construction principles for light-gauge steel buildings was published during 2026; its effective date and exact scope should be confirmed against the current issue of the Official Gazette.
In prefabricated buildings a significant share of production is completed in the factory, but “prefabricated” does not describe a single quality level — the structural system, insulation, panel construction and connection details vary from one manufacturer to another. Installing a prefabricated or modular unit for permanent use does not exempt it from permit requirements; under Law no. 3194, new buildings are, outside stated exceptions, subject to a building permit. A unit used permanently for residential or commercial purposes, fixed to the ground or connected to infrastructure — including a wheeled, mobile “tiny house” — can be treated as a building for zoning purposes. Before committing to such an investment, it is advisable to obtain written zoning information from the relevant authority using the plot’s cadastral reference.
Frequently Asked Questions
What determines the fee for an architectural project?
It depends on the building’s gross area, its type, the complexity of the design, the plot’s conditions and the scope of services. A permit-only project is not priced the same as a full service covering concept design, construction detail, 3D visuals, quantities and site supervision — ask exactly what a quote includes.
Does an architect’s fee include 3D visualisation?
Not automatically; it can be a separate line item. The number of images, the stage at which they are produced, and whether animation or a virtual tour is included should be stated clearly in the quote. A render helps you understand the design — it does not replace the construction drawings.
How many revisions am I entitled to?
There is no fixed number that applies to everyone; it is set in the contract. Defining a limited number of revision rounds at specific design stages is sound practice, since unlimited revisions make both the timeline and the budget unpredictable. A major change made after approval also affects the structural, mechanical and electrical projects.
Does the architect also handle the permit process?
It can, but that service needs to be stated explicitly in the contract. Clarify at the quote stage who prepares and submits the permit file, who handles any revisions requested by the authority, and who is responsible for fees and charges.
Does the architect also supervise the site?
Architectural design and site supervision are not the same service. If the architect also provides construction supervision, they may visit the site at set intervals to check that the work matches the project — but this does not replace the legal responsibilities of the contractor, the site manager and the construction supervision company. The number of site visits should be stated in the contract.
Should I hire an architect or an interior architect?
If you are constructing a new building, or working on its overall configuration, facades and plan decisions, the architect is the lead discipline. For interior work focused on function, materials, fitted furniture and lighting, an interior architect is the right addition. On larger projects the best outcome usually comes from the two working in coordination.
Who prepares the structural, electrical and mechanical projects?
These projects are prepared by licensed engineers in their own field; the architect does not replace them. The most comfortable model is for the architect, or a lead project coordinator, to manage all disciplines together, which reduces coordination clashes — a column landing on a window, ductwork colliding with a room — at the design stage rather than on site.
What should I look for when choosing an architect?
Do not look only at the lowest quote; look at comparable past work, how the office produces its projects, and the scope of the quote itself. A good quote states clearly which services are included, the deliverables, the payment schedule, the approach to revisions, and whether site services are part of it.
What does it cost to build a 150–250 m² house or villa?
A reliable total cannot be derived from floor area alone — the foundation system, number of storeys, facade, joinery, installations, kitchen/bathroom standard and site conditions all change the price directly. A realistic budget is built as gross area × the approximate unit cost for the target standard + design/permit costs + site/infrastructure costs + bespoke work + a contingency allowance, confirmed with a quantity take-off after the initial architectural design.
What does a “turnkey” price include?
There is no single standard meaning for “turnkey” in the market. The contract should list, item by item, whether the foundation, shell, roof, facade, joinery, mechanical and electrical installations, floor finishes, kitchen, bathroom, fitted furniture, lighting, landscaping and design/permit fees are included — otherwise two quotes may not describe the same product.
How many square metres can I build on my plot?
The title-deed area alone is not enough; the zoning status, emsal/KAKS, TAKS, the storey/height limit and the setback distances must be assessed together. For example, a 500 m² plot with an emsal of 0.80 gives a theoretical ceiling of 400 m², but that figure does not translate directly into usable floor area. A definite answer requires an architect to review the zoning status.
What are emsal (KAKS) and TAKS, and how are they calculated?
Emsal/KAKS is the ratio of the total ratio-counted floor area to the plot area (a 1,000 m² plot × emsal 1.20 = 1,200 m² of theoretical area). TAKS is the ratio of the building’s footprint to the plot area (a 1,000 m² plot × TAKS 0.30 = 300 m² of theoretical footprint). Both must be read together with the setback distances, the plot’s geometry, and the current regulation defining which areas do and do not count toward the ratio.
What is a setback distance?
It is the distance that determines how close a building may come to the plot boundaries, the road, and where relevant other limits; it directly constrains how much of the plot the building can occupy. The Planned Areas Zoning Regulation sets general figures, but the exact value for your specific plot must be read from the zoning plan and the zoning status document.
Does a basement count toward the floor area ratio?
Not every basement is automatically excluded. What matters is its intended use, its position relative to ground level, and whether it forms an independent unit; the regulation sets out special provisions for parking, shelters and certain technical or shared uses. Assuming “a basement gets me free square metres” is not correct.
Do balconies, terraces and parking count toward the ratio?
There is no single yes-or-no answer. Whether it is open or enclosed, how it is used, its size and its position are what decide this. The amendment of 1 July 2026 has again clarified the conditions under which certain balconies, shared terraces, parking and shared-use areas are excluded from the ratio.
How many storeys can I build?
It cannot be estimated from the plot size alone. The storey count or height limit set in the zoning plan, the emsal ratio, and the road/development conditions must be assessed together. A high emsal does not by itself mean “as many storeys as I like” — the emsal sets the total building right, while the storey/height decision limits how that right can be used vertically.
How many flats can a plot yield?
Simply dividing the ratio-counted area by a flat’s floor area is not a correct method. Stairs, lifts, corridors, plant areas, parking, fire requirements and minimum unit-size conditions must all be factored in; a theoretical building right of 1,000 m² does not mean “exactly ten 100 m² flats”. The realistic figure can only be found through an architectural feasibility study.
What should you check before buying a plot?
Do not judge a plot on location and price per square metre alone. Check the title deed type, the zoning status, emsal, TAKS, setback distances, road frontage, the plot’s geometry, whether it is jointly owned, any annotations or easements, infrastructure, ground conditions and topography. The safest approach is to have an architect carry out a preliminary review before you buy — a plot that looks cheap can turn into an expensive investment because of a low building right or an awkward geometry.
Where does the process of building a house begin?
Not digging the foundation or signing with a contractor, but confirming that the plot is legally and zoning-wise buildable. The process runs: gathering title/zoning information → reviewing the zoning status → drawing up the brief → architectural pre-design → ground survey and engineering projects → construction/permit drawings → permit → construction.
How is a building permit obtained?
Projects are prepared in line with the zoning plan in force, its notes and the relevant regulations, then submitted to the municipality, which checks them and issues the permit once satisfied. Work subject to a permit should not begin before it is issued, and the list of required documents can vary with the building type and the authority.
Can the project be changed during construction?
Yes, but the process differs with the nature of the change. A choice that does not affect the project or the permit is not the same as one that changes a column, the facade, the floor area, the structural system or the installation layout. For the latter, a project revision and the necessary approvals must be completed before the work is carried out; building first and trying to make the project fit afterwards can cause serious permit problems.
What is an occupancy permit and how is it obtained?
What is commonly called “iskân” is the building-use permit certifying that the building has been completed in conformity with its permit and approved projects. The application checks the building’s conformity with the permit and its annexes; depending on the building, additional documents such as a lift certificate or an Energy Performance Certificate may be requested. The exact document list should be taken from the current requirements of the authority where the building is located.
What does renovating a 100 m² home cost?
Price cannot be derived from floor area alone. There can be several multiples of difference between a 100 m² flat that is only repainted and one where the wiring, plumbing, kitchen, bathroom, doors and floors are all replaced. The right approach is to break the budget into items such as demolition, installations, finishes, joinery, fitted furniture and paint, and confirm it with a site visit.
What does a bathroom or kitchen renovation cost?
In a bathroom, stripping-out, water supply, drainage, electrics, waterproofing, tiling, sanitaryware, fittings and lighting must all be assessed together; waterproofing is invisible but the most critical item. In a kitchen, cabinet run length, carcass and door material, the worktop, electrical/plumbing work and appliance placement set the price. In both cases, design, materials, labour and installations should be costed together, not separately.
Which is more economical and sound — reinforced concrete, steel or prefabricated?
There is no single answer that applies to everyone. All three can be safe with correct engineering and workmanship; safety depends not only on the material but on ground conditions, structural design, material quality, connections, construction and inspection together. The right question is not “which is cheapest?” but which system best fits your plot, your budget and how you intend to use the building.
What does a prefabricated house price include, and does it need a permit?
You should always ask whether the quote covers only factory production and installation, or also the foundation, transport, crane hire, infrastructure, kitchen, sanitaryware, design and permit costs. Prefabricated buildings installed for permanent use are not exempt from permit requirements either; the plot’s zoning status should be checked before installation.
Does a Tiny House need a permit, and can it be placed on farmland?
A wheeled, road-registered towable caravan and a Tiny House fixed to the ground do not have the same legal status. A unit used permanently for residential or commercial purposes, fixed to the ground or connected to infrastructure, can be treated as a building under zoning law, which brings the permit requirement into play. On land classified as agricultural, farming regulation, the zoning status and any conservation or special-area designation must also be checked; the safest course is to obtain written information from the relevant authority, using the plot’s cadastral reference, before placing the unit.
Source
For the current changes to emsal (floor area ratio), TAKS, re-permitting and renovation rules for existing buildings: the “Regulation Amending the Planned Areas Zoning Regulation”, Official Gazette dated 1 July 2026, no. 33297. The approximate unit construction costs used to calculate architectural and engineering fees are based on the annual communiqués of the Ministry of Environment, Urbanisation and Climate Change. The information on this page is general in nature; because zoning rights and permit conditions vary by parcel, binding information should be sought from the relevant municipality and confirmed with an architect.