Choosing the right architect, engineer, and contractor is one of the most consequential decisions in a custom build in Turkey. The team you appoint shapes design quality, permit filings, site discipline, and whether the finished home matches what you agreed in writing — not what appeared in a brochure.
This guide explains who does what on a typical villa project, how to compare quotations fairly, and how payment stages, supervision, and contracts should work. It does not replace independent legal advice or licensed technical review for your specific plot.
Who Does What During a Construction Project?
A custom build involves several distinct roles. Confusing them is a common source of dispute — especially for foreign buyers comparing off-plan developer marketing with a bespoke villa programme.
Architect — prepares the architectural project (mimari proje) and coordinates design with zoning limits
Structural engineer — prepares static calculations and engineering sign-off for the frame and foundations
Contractor (müteahhit) — executes the build on site to the approved technical package
Project coordinator — may schedule trades, permit submissions, and handover (often the construction company you contract with)
Lawyer — reviews land purchase and construction contracts, title, and payment security on your side
Buyer — approves design decisions, milestone payments against verified progress, and handover snagging
The wider sequence from land to handover is described in our Construction in Turkey guide.
Architect, Engineer and Interior Designer Roles
Licensed architects translate your brief into plans that comply with local imar rules — room layout, facade, setbacks, and site placement. Revisions are normal until the package is acceptable for municipal review. Architects also coordinate with the structural engineer so design and calculations align.
Structural engineers prepare the static project (statik proje): foundations, columns, beams, and seismic design. On sloped or coastal land, geotechnical input may be required before foundations are finalised. Engineering sign-off is part of responsible delivery, not an optional extra on serious villa builds.
Interior designers may be separate from the architect. They handle finishes, joinery, lighting, and furniture packages — often a significant share of total cost on premium projects. Clarify whether interior scope sits inside or outside your main construction contract.
Permit applications are filed through these licensed professionals. See Building Permits in Turkey for how architectural and engineering packages fit municipal review. Architect and engineering fees are often in the range of 8–15% of construction value — indicative bands and build costs are in our Building Costs in Turkey guide.
Contractor vs Developer
A developer runs a project from land or renewal through marketing and sales — assembling consultants, contractors, and sales teams. Buyers of off-plan units contract with the development entity, not the site foreman.
A contractor builds to an approved technical specification — either for a developer or directly for you on a custom plot. On a personal villa programme, you (with your architect and lawyer) define scope; the contractor executes it.
The roles, payment protections, and contract types differ materially. Off-plan marketing language should not be confused with a bespoke build you control end to end. For the development-side model, see Real Estate Development in Turkey.
Comparing Quotations and Specifications
Request itemised quotations from at least two licensed contractors in your target district. A single lump-sum figure without a specification is not comparable and often hides exclusions.
When reviewing quotes, align these lines before comparing price:
Shell only (kaba inşaat) vs turnkey (anahtar teslim) — contractors often quote shell only; kitchens, bathrooms, MEP finish, and landscaping may be extra
Material brands and grades — windows, insulation, tiles, sanitaryware
Excluded items — pools, retaining walls, rock excavation, utility connections
Provisional sums — items priced later without a cap
Timeline assumptions — permit duration stated separately from build duration
Land suitability and zoning should be confirmed before you commission full design spend. Our Buying Land in Turkey guide covers feasibility that precedes contractor selection.
Payment Stages and Written Contracts
Construction and land contracts should define scope, payment stages, timelines, and remedies if work stops or deviates from the agreement. Payments should track verifiable milestones — for example foundation completion, structure, roof, and pre-handover — not calendar dates alone.
Your lawyer reviews contract terms, title alignment, and how disputes or delays are handled. Maximos or any coordinator may schedule filings and site progress on the project side; your lawyer works for you on legal risk. See Lawyer Services for how legal support fits alongside technical coordination.
Do not release large tranches before scope for that stage is defined in writing and, where agreed, inspected.
Site Supervision and Quality Control
Construction should follow the agreed specification with inspection points at key stages. Buyers commonly visit at foundation, structure, and pre-handover — arranged in advance for safety and scheduling. Photographs and progress reports help when you live abroad; they supplement but do not replace contract inspection rights.
On developer-led projects, a supervising engineer may be named in project files. On custom builds, clarify who holds site management responsibility — the contractor’s site chief, your architect’s periodic visits, or an independent clerk of works if you appoint one.
At handover, record snagging items in writing. Outstanding defects should be addressed according to the contract before final acceptance. Quality expectations belong in the specification — not in verbal assurances after the fact. Specialist suppliers for prefabricated houses in Turkey should be vetted with the same quotation and inspection discipline as conventional contractors.
What Should Be Included in a Turnkey Agreement?
“Turnkey” means different things to different contractors. The deliverables list should be written before construction starts, typically covering:
Design services included (architectural revisions within agreed rounds)
Structural and MEP trades through to finish level stated
Kitchens, bathrooms, equipment brands or equivalent grades
Windows, insulation, facades, and external paving
Landscaping, pool, and boundary treatments if promised
Handover condition — clean, connected utilities, keys and documentation
Items not listed are not included by default. Review the specification line by line with your lawyer before signing so the contract matches your expectations.
Common Red Flags
Lump-sum quote with no itemised specification or exclusion list
Pressure to pay large deposits before land, zoning, or permit path is verified
Shell price presented as turnkey without defining finishes or equipment
No licensed architect or engineer named for permit filings
Vague timelines that bundle permit wait and build duration into one promise
Contractor unwilling to align payment stages with measurable site progress
Resistance to lawyer review of construction or land agreements
Documented track record, registered company details, and references from completed projects in your region are basic due diligence — especially on villa purchases where land and building transfer together.
Frequently Asked Questions
What is the difference between a contractor and a developer?
A developer identifies land or renewal opportunities, assembles the professional team, markets units, and sells inventory — coordinating contractors but selling a development product. A contractor executes construction to an approved specification, either for a developer or directly for you on a custom plot. Contracts, risks, and buyer protections differ between the two paths.
Should I hire my own architect?
On a custom build, a licensed architect preparing your mimari proje is standard practice and required for municipal permit filing. Using only a contractor’s in-house drawings without understanding who holds professional responsibility can blur accountability. Your architect should work to your brief within zoning limits confirmed for the plot.
How many quotations should I obtain?
Obtain itemised quotations from at least two licensed contractors in your target district, comparing the same specification scope. More quotes can help on unusual sites, but only if each quote uses the same written brief; otherwise prices are not comparable.
What should a turnkey contract include?
A turnkey contract should list design rounds, construction trades, material grades, kitchens and bathrooms, MEP completion level, external works, and handover condition. Exclusions — rock excavation, utility extensions, pool equipment — should be stated explicitly. If it is not written in the agreement, assume it is not included.
How are payment stages normally structured?
Payments are usually tied to milestones such as foundation, structural frame, roof, enclosed shell, and pre-handover. The contract should define what evidence triggers each stage — site inspection, architect certification, or agreed progress photographs — and what happens if work stalls between stages.
Who supervises construction quality?
Day-to-day site execution is the contractor’s responsibility under the agreed specification. Your architect may perform design compliance visits; a supervising engineer may be involved on larger or developer-style projects. You retain the right to inspect at agreed stages and to record defects before handover.
Can foreign buyers appoint independent inspectors?
Yes. Buyers may engage independent engineers or inspection specialists to review progress at key milestones, in addition to their lawyer’s contract review. Coordinate access with the site manager in advance. Independent inspection does not replace municipal permit and occupancy processes.
When should a lawyer review the contracts?
Before you pay significant deposits on land or construction. Your lawyer should review land purchase terms, construction scope, payment stages, and remedies if the contractor or seller fails to perform. Legal review belongs early — not after problems appear on site.
Last updated: June 2026. Indicative guidance only — not legal or technical advice.
Construction Guides and Resources
Use these guides for company project coordination, development context, legal checks, and the purchase steps that often precede a custom build in Turkey.
