- Turkey's Ministry of Environment, Urbanization and Climate Change publishes official construction unit prices every March; the 2026 list shows an average increase of 28-42% over 2025.
- Unit prices are used in public tenders, private-sector progress payments (hakediş), insurance claims, and judicial expert reports.
- Line-item codes (e.g., 21.001/MK) follow a sector + item + suffix logic (material/labor scope).
- Approximate cost estimation follows 5 steps: scope, takeoff, line-item mapping, price application, summary report.
- AECKraft does not ship the Ministry line-item library by default; users define their own line items, track versions, and export to Excel.
In 2026, the single most critical reference document in Turkey's construction sector remains the unit price list published by the Ministry of Environment, Urbanization and Climate Change every March. From public tenders to private-sector progress payments, from insurance claims to tax-related expert reports, this list serves as the financial backbone. The unusually high inflation transferred from 2025 to 2026 produced double-digit increases across a wide range of line items, creating a serious update burden for estimators, site engineers, and procurement teams.
This guide breaks down the structure of the 2026 unit price document, the sectors it covers, the line items with the highest year-over-year increases, the workflow for preparing an approximate cost estimate, and how digital takeoff software handles these prices. We also explain how to define custom (non-Ministry) line items, how unit-price contracts differ from lump-sum agreements, and how you can manage line items yourself within AECKraft.
What Are Ministry Unit Prices and How Are They Published?
Ministry unit prices are official reference documents published annually by Turkey's Ministry of Environment, Urbanization and Climate Change (formerly the Ministry of Environment and Urbanization). The document specifies average unit costs for standard construction work items — materials, labor, equipment usage, and general overheads included.
Who prepares the list? Technical commissions under the Ministry consult statistics from Turkstat (TÜİK), producer-supplier surveys, sector associations, and prior tender outcomes. Figures are then revised based on inflation and currency fluctuations. The 2026 list was published in March 2026 and remains valid until the end of the year unless a mid-year update is issued.
Is the list binding? In public tenders and government project approximate cost calculations, it is mandatory. In private-sector projects, parties can negotiate alternative prices, but Ministry rates remain the reference for progress payments, bank loan appraisals, and insurance expertise. For broader context, see our complete construction project management guide.
Which Sectors Does the 2026 Unit Price List Cover?
As in previous years, the 2026 unit price document is published as separate PDFs per sector. Each sector has its own line-item series and code range.
- Structural Works: Excavation, fill, concrete, rebar, formwork, masonry, plaster, insulation, roofing.
- Architectural and Finishing Works: Paint, cladding, joinery, suspended ceilings, drywall, flooring.
- Mechanical Installations: Plumbing, HVAC, fire suppression systems.
- Electrical Installations: Panels, cables, lighting, grounding, low-voltage systems.
- Landscape and Site Works: Green spaces, irrigation, playground equipment, urban furniture.
- Infrastructure: Roads, sewerage, water supply, storm drainage, water treatment.
- Highway and Bridge Works: Asphalt, concrete pavement, structures, retaining walls.
- Mining and Tunnel Works: Galleries, tunnel construction, shotcrete, anchoring.
In 2026 the total number of line items across all sectors reached approximately 12,000 — about 400 new items more than 2025. The new entries focused largely on renewable energy, smart-building automation, and post-disaster reconstruction.
Line-Item Code Structure (e.g., 21.001/MK)
Each work item in the unit price documents uses a standardized numbering system. Understanding this structure is essential for accurate item selection and calculation.
Example: 21.001/MK
- 21 → Sector code (in this example, structural works).
- 001 → Sequential item number within the sector.
- /MK → Suffix indicating material + labor included. /M is material-only, /İ is labor-only, /K is equipment usage/rental.
Some items combine these suffixes; for example, plumbing items may use codes like "K.0001/A". Each line item's definition page specifies the work description, material ratios, labor hours, equipment investment, and unit of measure (m, m², m³, kg, piece, ton). Reading line-item definitions in detail can cut takeoff errors by half.
Average Increase Rates from 2025 to 2026
The high inflation environment of 2025 was reflected in Ministry unit prices. Below are the average increase rates per sector for 2026.
| Sector | 2025 → 2026 Avg Increase | Main Driver |
|---|---|---|
| Structural Works | 34% | Rebar, cement, ready-mix concrete |
| Architectural & Finishing | 28% | Joinery, paint, cladding (FX exposure) |
| Mechanical | 37% | Copper, imported equipment |
| Electrical | 42% | Copper, aluminum cable, switchgear |
| Infrastructure | 31% | PE/HDPE pipes, asphalt, aggregates |
| Highways & Bridges | 36% | Asphalt, structural steel, fuel |
| Landscape & Site Works | 24% | Plants, irrigation, labor cost |
Note: Figures above are averages drawn from multiple line items within each Ministry document. Sector averages do not reflect any single item's actual change. Always cross-check with the current PDF on the Ministry portal.
Big picture: structural works and electrical installations escalated well beyond the historical average. This directly affects progress payment (hakediş) workflows — the gap between old contract prices and new costs is driving many contractors to file price-difference claims.
Top 10 Highest-Increase Line Items (Sample Values)
The table below highlights 10 example line items that show significant year-over-year increases in the 2026 document. Values are illustrative; always refer to the official Ministry PDF for definitive numbers.
| Line Item | Description | Unit | 2025 TRY | 2026 TRY | Δ % |
|---|---|---|---|---|---|
| 15.140/1 | C30/37 ready-mix concrete | m³ | 3,250 | 4,480 | 38% |
| 23.014 | Deformed rebar B500C | kg | 26.80 | 38.40 | 43% |
| 21.011/MK | Vertical formwork + scaffold | m² | 540 | 710 | 31% |
| 27.525 | Hollow brick wall (19 cm) | m² | 680 | 895 | 32% |
| 38.005/A | PVC window with double glazing | m² | 3,100 | 3,980 | 28% |
| 45.220 | NHXMH cable 3x2.5 mm² | m | 48.50 | 71.20 | 47% |
| 42.130 | PPR water supply pipe DN20 | m | 62 | 82 | 32% |
| 15.022/B | Ceramic tile with ready-mix adhesive | m² | 920 | 1,180 | 28% |
| 17.002/MK | XPS insulation board 5 cm | m² | 340 | 472 | 39% |
| 61.250 | Hot-mix asphalt wearing course | ton | 5,100 | 7,030 | 38% |
The implication is stark: a project priced a year ago on the same line-item set will recompute at least 30% higher today without any scope change.
Use Cases for Ministry Unit Prices
Ministry unit prices serve as the baseline reference in many workflows beyond public tenders.
- Public Tender Approximate Cost: Mandatory under Turkey's Public Procurement Law (Law No. 4734).
- Private-Sector Progress Payments: In unit-priced contracts, monthly hakediş computations rely entirely on Ministry line items.
- Insurance Claims: Fire, earthquake, and flood damage assessments use Ministry rates as baselines.
- Loan and Financing Appraisals: Banks verify project cost estimates against Ministry line items.
- Tax and Building Permits: Used as a reference for construction permits, occupancy fees, and property valuation.
- Court Expert Reports: Forensic and judicial expert reports cite Ministry line items as evidentiary references.
- Demolition and Urban Renewal: Risk-building demolition and reconstruction cost estimates.
How to Prepare an Approximate Cost Estimate (5 Steps)
Approximate cost estimation is the main financial document outlining a project's expected total cost. The five steps below represent a standard workflow used across both public and private sectors.
- Scope Definition: Determine which sectors (structural, mechanical, electrical, infrastructure) are included. Scope omissions are the largest source of estimation error.
- Quantity Takeoff: Calculate quantities (m, m², m³, kg, piece) for each work item from architectural, structural, mechanical, and electrical drawings. For detailed methodology, see our quantity takeoff software comparison guide.
- Line-Item Mapping: Match each takeoff quantity to the appropriate Ministry line item. If no standard item fits, define a custom line item.
- Price Application: Apply 2026 unit prices to compute totals per row. Adjust for mid-year inflation index if relevant.
- Summary and Reporting: Aggregate sector subtotals, add VAT, overheads, profit, and contract costs to produce the final approximate cost report.
Practical tip: log the date and version of every revision. If the Ministry releases an in-year update, you must be able to identify which version of the list any past estimate was based on.
Unit Price vs Lump-Sum (Turnkey) Contract Differences
Two major contract types in Turkish construction — both reference Ministry line items but operate differently.
- Unit Price Contract: The employer and contractor agree on per-item unit prices. The total amount depends on actual quantities executed on site. Risk is shared.
- Lump-Sum (Turnkey) Contract: The contractor commits to deliver the entire defined scope for a fixed total amount. The contractor bears the risk of quantity increases or extra work (out-of-scope items excluded).
The high inflation of 2026 has shifted private-sector preference toward unit-priced contracts, since lump-sum contractors face substantial price-difference risk. For a deeper comparison, see our construction contract types guide.
Custom (Non-Ministry) Line Items — How to Define
Some work items are not represented in the Ministry list — for instance, specialty facade systems, imported equipment, or novel technologies. In such cases a custom line item must be defined.
Custom line-item workflow:
- Definition: Document the technical description, material ratios, and labor hours in detail.
- Cost Analysis: Obtain at least 3 supplier quotes; include transport, waste, and overhead allocations.
- Unit Price Build-Up: Compute the unit price as material + labor + equipment + profit margin.
- Administrative Approval: In public projects, the contracting authority (municipality, governorate, ministry) must approve in writing.
- Documentation: Archive the approval letter, supplier quotes, and analysis sheet — these are reviewed during audits.
Critical rule: if a comparable Ministry line item exists, using a custom item is not acceptable. Always search the existing list first; create a custom item only when no exact match exists.
Using Unit Prices in Digital Takeoff Software
Modern takeoff and estimation software (AutoCAD plugins, Excel macros, cloud-based platforms) handle Ministry unit prices in two ways:
- Pre-Loaded Library: Some packages ship the current Ministry list bundled with the license — requires annual update.
- Manual Definition: Users define their own line items in their library and handle yearly updates themselves. AECKraft and most modern SaaS platforms follow this model.
The manual approach offers flexibility: only the line items actually used are tracked, avoiding thousands of unused rows, and custom items integrate seamlessly. The trade-off is the post-March maintenance burden. To ease this, features like Excel import/export, multi-user collaboration, and version control are now standard.
KOSGEB / TÜBİTAK Grants and Unit Prices
Construction and engineering firms applying for support programs from KOSGEB, TÜBİTAK, or KOP can use Ministry unit prices as the baseline reference when preparing project budgets. This is particularly relevant for R&D-supported urban renewal, energy-efficiency projects, and post-disaster reconstruction.
During budget evaluations, applicants must demonstrate that requested amounts align with "market rates." Substantiating an estimate with Ministry line items strengthens the technical score. Note: KOSGEB programs may also require separate price research for equipment and goods; Ministry rates alone may not suffice.
Estimating and Approximate Costs with AECKraft
AECKraft is a cloud-based construction project management platform that helps you centralize takeoff and approximate cost workflows. To be clear: AECKraft does not ship the Ministry unit price library pre-loaded. Due to copyright considerations and annual update cycles, Ministry line items are not embedded as a fixed list in the software. Instead, users manually define and manage the line items they actually use.
What AECKraft provides for this workflow:
- Line-item library structure: Users build a company-specific library — Ministry items, custom items, and client-specific items all in one place.
- Multi-user collaboration: Multiple users can enter takeoff and estimation data simultaneously on the same project.
- Version control (audit trail): Every line-item update is logged with date, user, and previous value.
- Excel/CSV export: Cost summaries export to Excel and CSV for sharing with accounting or owner teams.
- Role-based permissions: Site engineers, office engineers, and procurement staff see/edit line items at different permission levels.
- In-app hakediş integration: Defined unit prices feed the progress payment module automatically (no external accounting integration).
- Document management: Ministry PDFs, custom-item analysis sheets, and supplier quotes archived in one location.
- KVKK-compliant Turkey data residency: All project data resides on servers within Turkey.
To explore whether AECKraft fits your workflow, request a free demo via the contact page or review plan details on the pricing page. To evaluate other software options, see our construction software selection criteria guide.
Conclusion
The 2026 Ministry of Environment, Urbanization and Climate Change unit prices reflect a cost escalation that goes beyond recent years' patterns. In high-inflation periods, estimation accuracy and progress-payment tracking become critical. Correct line-item selection, periodic updates, and digital tracking tools both provide a competitive edge in tenders and protect project profitability.
As a first step, align your takeoff software or Excel sheets with the 2026 list; then document your custom line items and ensure version-controlled tracking. This baseline preparation grounds every downstream activity, from tender approximate costs to monthly hakediş calculations, in a defensible reference.
Frequently Asked Questions
Are Ministry unit prices updated monthly?
No. Standard publication is annual, every March. Extraordinary economic conditions may prompt a mid-year update, but this is uncommon. In-year inflation gaps are typically compensated through price-difference index adjustments in progress payments.
Where can I find the 2026 unit prices?
The official list is published as a free PDF on the Ministry of Environment, Urbanization and Climate Change website. Third-party sites may republish copies; for definitive and up-to-date data, always rely on the official source.
Are Ministry unit prices mandatory for private-sector projects?
No. Private parties can negotiate different rates. However, for progress payments, insurance claims, bank appraisals, and expert reports, Ministry line items remain the reference.
Which is better — unit price or lump-sum contracts?
It depends on the project and the party. In high-inflation periods, unit-priced contracts are safer for contractors because they auto-adjust to material increases. Lump-sum contracts give the owner a predictable total cost, but contractors will price in a risk premium upfront.
What documentation is needed for custom line items?
Minimum documents: at least 3 supplier quotes, material ratio analysis, labor-hour breakdown, equipment usage calculation, profit and overhead derivation, written administrative approval (mandatory in public works).
Does AECKraft come pre-loaded with Ministry line items?
No, it does not. AECKraft does not ship the Ministry unit price library by default. Users manually define their own line items; AECKraft provides multi-user editing, version control, Excel/CSV export, and role-based permissions to manage these efficiently.
Do annual updates affect my past projects?
Completed projects (e.g., closed hakediş) remain on the original list. Ongoing projects may apply a price-difference index after annual updates. Check your contract's price-difference clause and the index coefficients published by the contracting authority.
Do I need a license to use Ministry line items in digital software?
The official list is published free of charge by the government and is open for use. Some commercial software bundles the list as a pre-loaded library under their license fee. Platforms like AECKraft that follow the manual approach do not impose an additional license cost — users handle updates themselves.