Compare villa and residential construction quotes against the same enclosed floor area, architectural and structural drawings, and specification. Align foundations, roof, facade, building services and finishes. Add required excluded work and taxes or fees not already included once, then review quality, programme, payment and handover conditions.
How can a lower headline price become a higher total?
This fictional worked example compares the same 200 m² villa, drawings and material specification. The amounts are neither market prices nor a Lizaz quotation. The tax allowance is illustrative and does not establish an applicable rate.
| Item | Quote A | Quote B |
|---|---|---|
| Quoted amount | 5,800,000 | 6,400,000 |
| Required excluded work | 1,300,000 | 200,000 |
| Taxes and fees not included above | 400,000 | 400,000 |
| Compared total | 7,500,000 | 7,000,000 |
A starts 600,000 TRY lower, but after excluded scope and allowances its total is 500,000 TRY higher than B. The compared totals are 37,500 TRY/m² for A and 35,000 TRY/m² for B. Quality, programme and contract risks still require separate review.
Free comparison worksheet
Compare two construction quotes on the same basis
Enter amounts without thousands separators: 5800000. Count every cost once. Enter 0 for a confirmed included or non-applicable allowance; leave unknown amounts blank. The worksheet does not estimate tax rates.
Quote A: Quoted amount or cost allowance is incomplete.
Quote B: Quoted amount or cost allowance is incomplete.
Complete both quotes, the shared area and scope confirmation to compare totals. Unknown costs are not treated as zero.
Inputs are calculated on this page; they are not saved to a server or transferred to the contact form.
Create a comparable scope first
Two prices prepared against different drawings, quantities or quality assumptions are not truly comparable. Architectural, structural, mechanical and electrical scope should be issued under the same revision.
Open up the assumptions behind the total
A lower price may reflect missing scope rather than better procurement.
- Quantities and unit-rate basis
- Material brands or performance classes
- Preliminaries and mobilisation
- Permit, connection and agency costs
- Exclusions and employer-supplied items
Read time as a programme, not one date
Approvals, long-lead materials, critical activities and employer decision dates should be visible. A proposal showing only the completion date does not explain where delay risk sits.
Agree change control before contract
Define how new prices are built, who approves changes, how time impact is assessed and how records are kept. Small decisions can otherwise become major disputes.
Define handover through documents
- Testing and commissioning records
- As-built drawings
- Warranty and maintenance information
- Defect list and close-out programme
- Required official approvals
Align the physical construction scope
- Area: combined enclosed floor area, with basements, terraces and shared areas defined separately.
- Ground and structure: investigation, drawing revision, foundation solution, retaining structures and specialist ground works.
- Envelope: roof, waterproofing, insulation, facade, windows and glazing performance.
- Building services: heating, cooling, electrical, plumbing and testing scope.
- Finishes: room schedule, floor and wall finishes, kitchen, doors and fixed equipment.
- External works: pools, landscaping, boundaries, drainage and off-site connections.
- Commercial basis: quotation date, validity, price adjustment and taxes or fees included in each amount.
Frequently asked
Quick answers
Is the lowest turnkey proposal usually the best?
No. First check whether the scope, quantities, quality, exclusions and programme are genuinely equivalent.
What should be fixed before signing?
Scope, drawings, specifications, exclusions, programme, payment, change control, securities, warranty and handover requirements.
Is price per square metre enough to compare villa construction quotes?
No. Both quotes need the same enclosed floor area, ground and foundation solution, envelope, services and finish specification. Pools, landscaping, taxes and other exclusions must be recorded separately.
Should an unknown excluded cost be entered as zero?
No. Leave unknown amounts blank in this worksheet; the comparison will remain incomplete. Enter zero only when an item is confirmed included or not applicable.
Related guides and tools
Offer comparison checklist
How can I build an initial allowance?
Review the area, specification, slope and extras model, with worked examples for 150–300 m² villas.
Calculate villa construction costsWho coordinates villa construction?
Review design, construction, quality checks and handover scope for projects in Kartepe and Sapanca.
Turnkey villa constructionWhat should I check before buying land?
Work through 12 checks covering title, planning, access, utilities and development costs.
12 land purchase checksOfficial sources
Current documents and competent authority information should always be used for a project decision.
- High Technical Board · 2026 approximate building unit costs ↗
Reference for professional service-fee calculations; not a project quotation.
- High Technical Board · unit prices and analyses ↗
For itemised cost research; check publication date, quantities and specification.
- AFAD · Turkish Building Earthquake Code ↗
Technical design reference; applicability requires the responsible engineers.
This content is for general information only and does not replace legal, financial, valuation or competent-authority advice. Every property and project must be assessed against its current documents.