Turnkey construction means a single contractor takes on every stage of a building — from design and structural work to installations and interior decoration — and hands it over ready to use. Instead of hiring separate trades and coordinating them, the owner works with one point of contact under one contract.
What does turnkey construction include?
Scope varies by contract, but a typical turnkey project covers:
- Design and permits: ground survey, architectural and structural drawings, permit follow-up
- Structural works: formwork, rebar, concrete, masonry, roof
- Installations: electrical, clean and waste water, gas infrastructure, heating
- Finishing works: plaster, screed, drywall, paint, tiling, flooring
- Joinery: windows, doors, metalwork and railings
- Facade: external insulation, cladding, exterior paint
- Interior decoration: kitchen, wardrobes, bathroom, lighting
- Handover: cleaning, inspection checklist, written handover report
Landscaping, garden walls and parking areas are included in some quotations and priced separately in others. When comparing offers, read the scope line by line.
What are the stages?
- Consultation and needs analysis: site visit, zoning check, clarifying expectations.
- Design and permits: architectural and structural drawings prepared and submitted to the municipality.
- Contract and schedule: scope, material grade, payment plan and timeline put in writing.
- Structural works: foundation, columns and beams, slabs, walls and roof.
- Installations and finishing: all service lines, plaster, screed, drywall, paint, flooring.
- Decoration and joinery: kitchen, wardrobes, doors and windows, bathroom.
- Inspection and handover: snag list completed, building handed over ready for use.
Sharing photo progress reports at the end of each stage makes the process much easier to follow.
Turnkey versus hiring trades separately
| Aspect | Turnkey | Separate trades |
|---|---|---|
| Point of contact | One contractor | A different trade for each job |
| Coordination | With the contractor | With the owner |
| Sequencing errors | Contractor is responsible | Responsibility is unclear |
| Cost control | One quote, one budget | Scattered, surprise items appear |
| Duration | Planned, single schedule | Waiting time between trades |
Hiring trades separately can look cheaper at first. In practice, sequencing errors, material mismatches and idle days usually push the total cost higher.
What to check in the contract
- Scope list: which works are included and which are not must be stated explicitly.
- Material grade: instead of vague phrases like “first class”, specify brand, model or technical properties.
- Payment plan: payment tied to completed work protects both parties.
- Schedule: stage-based timeline and delay terms should be in writing.
- Change management: how additional work requested mid-project will be priced.
Who is turnkey construction for?
Anyone building a detached house or villa on their own land who would rather not coordinate the process personally, and prefers a single point of contact. It also makes follow-up far easier for landowners living in another city.
Demgirişim delivers turnkey construction projects with its own crews from its Istanbul base, and takes on projects across Türkiye. Scope and duration are confirmed in a written quote after the initial consultation.
Frequently asked questions
What does the landowner do in a turnkey project?
The owner approves the design and material grade, follows the payment plan and attends interim inspections. Permits, construction, installations and handover coordination are handled by the contractor.
How long does turnkey construction take?
It depends on the size of the building, ground conditions, the permit process and material choices. A detached house is typically planned in months; the exact schedule is set in writing after the consultation and design stage.
What does the turnkey price include?
Everything written in the contract: structural work, finishing works, installations, joinery, interior decoration and landscaping where applicable. Anything excluded must be stated clearly in the quotation.
The initial consultation and written quote for Turnkey Construction are free within Istanbul. Scope, duration and cost are confirmed after the consultation.