Turnkey vs Item-Rate vs Labour Contract: Where the 12–20% Really Goes When You Build a House
The same 1,500 sq ft house under three contract types, with real final costs. Why the cheapest quote is rarely the cheapest house, and the six things a turnkey BOQ must contain.
Picture three quotations on an owner’s table for the same 1,500 sq ft house in Greater Noida. Contractor A: ₹2,200 per sq ft, turnkey. Contractor B: ₹2,020 per sq ft “with material”, item-rate. Contractor C: ₹400 per sq ft, labour only, “aap material laa dijiye”. The owner, reasonably, picks B or C. Here is how the money usually moves after that, and why B and C often end up costing more than A.
Key takeaways
Three contract types: turnkey (fixed rate, everything included), item-rate (contractor quotes per item, quantities open), labour contract (you buy every bag).
Turnkey looks 5–8% dearer on paper and usually ends 8–15% cheaper in reality.
The four leaks in item-rate and labour contracts: wastage (5–8%), theft and short delivery (2–5%), idle labour (3–6%) and re-work (2–4%).
Labour contracts make sense only if a family member with construction knowledge can be on site daily.
Whatever you choose, insist on a BOQ with brands and quantities — it is the only defence against the open-ended bill.
What each contract actually is
Turnkey. One agreement, one rate per sq ft of built-up area. The contractor designs (or works to your architect’s drawings), buys every material, supplies every trade, supervises daily and hands over the keys. Government fees are extra at actuals; everything else is inside the rate, which is fixed for the contract period. This is what GharVistar's turnkey construction is.
Item-rate. The contractor prices each item of work — excavation per cubic metre, RCC per cubic metre, brickwork per cubic metre, plaster per sq m, tiling per sq ft — with or without material. Quantities are measured as executed and billed. It is the government-tender model, and it works when a qualified engineer is measuring; without one, quantities are whatever the contractor writes.
Labour contract. You buy cement, steel, sand, bricks, tiles, fittings — everything. The contractor supplies masons, helpers and carpenters at a per-sq-ft or per-day rate. You also supply the supervision, the scaffolding, the curing water and the decisions.
The same house, three ways
1,500 sq ft G+1, standard finish, Greater Noida, 2026. The turnkey figure is our current rate; the other two are illustrative estimates of typical overruns, not measured project data.
Final figures include wastage, theft, idle labour, re-work and the client's own transport and phone time valued at zero. Excludes sanction and architect fees in all three.
Turnkey
Item-rate
Labour contract
Who buys material
Contractor, bulk, challans shared
Contractor or client, item by item
Client
Wastage risk
Contractor
Client (if client supplies)
Client
Theft / short delivery
Contractor
Client
Client
Idle labour when material is late
Contractor
Shared
Client pays
Daily supervision
Contractor’s engineer
Client or hired engineer
Client
Price certainty
Fixed per sq ft
Open (quantities)
Open (everything)
Quality accountability
Single party, written warranty
Split — “material was bad”
Split — “material was bad”
Client time
Weekly review
2–3 hours a day
Full-time
Best for
Owners with jobs, NRIs, first-time builders
Projects with a qualified engineer on site
Families with a construction background
Where the 12–20% goes
Wastage: 5–8%
Cement bags torn in a leaking store. Sand delivered on the road and half of it swept away by the first rain. Tiles cut wrong because the layout was not planned. Steel cut without a bar-bending schedule, leaving 60 cm off-cuts nobody can use. A professional site plans the cutting and stores the cement on pallets under a tarpaulin; a labour-contract site usually does neither.
Short delivery and theft: 2–5%
A 10-tonne sand truck that carries 8. A cement dealer who sends 49 bags and bills 50. Twenty kilos of steel that leaves the site every night. None of it is dramatic; all of it adds up. On a turnkey site the contractor eats these losses, so the contractor weighs the trucks.
Idle labour: 3–6%
Twelve workers waiting two days because the client’s steel came late are twelve workers you pay for anyway — or who leave for another site and do not come back. Material scheduling is a full-time job and the single biggest hidden cost of managing your own build.
Re-work: 2–4%
The plumber’s pipe cut into the electrician’s conduit. A wall built before the door size was decided. Tiles laid before the floor slope was checked. Coordination between trades is what a site engineer does all day; without one, the trades coordinate by breaking each other’s work.
A turnkey handover: the client saw a BOQ, a timeline and weekly photos — not a sand truck.
When item-rate or labour contracts do make sense
We are not saying they are always wrong. If you are a civil engineer, or your father built three houses and will sit on site with a notebook, a labour contract can save 8–10% and you will know every brick. If you have a retired engineer friend who will measure and certify every bill, item-rate is a fair way to work with a good local contractor. The mistake is choosing them because the per-sq-ft number looked smaller, then discovering the number was never the price.
How to read a turnkey quote so you are not overpaying
Brands named per item — “UltraTech OPC 53”, not “good cement”; “Tata Tiscon Fe500D”, not “TMT”.
Quantities per sq ft — steel at 3.8–4.2 kg/sq ft for G+1 is normal; 3 kg means something is being skipped.
What is excluded — written down: sanction fees, connections, solar, lift, boundary.
Stage-wise payments against work you can see — never 40% advance.
A dated timeline with a delay clause that works both ways.
Warranty in years, on paper, for structure, waterproofing and finishing.
If a turnkey quote has all six, the 5–8% premium over the item-rate number is buying you the 12–20% you would otherwise lose. Read our house construction guide for what a complete BOQ looks like, or drop the plot size into the calculator for a first number.
An illustrative comparison (not a real project)
Take two adjacent 120 sq m plots in Greater Noida West. Suppose one owner signs a turnkey contract at the standard rate and the other hires a local contractor on labour-only at ₹390 per sq ft and buys the material himself. Both houses are G+1, about 1,550 sq ft, similar finish. A turnkey house on a fixed BOQ would typically hand over in about 11 months at ₹33.3 lakh. A labour-contract house commonly runs to around 16 months, and a 9% overrun would take it to ₹36.3 lakh, before counting the owner’s site visits and the extra rent while it runs late. Steel is the usual culprit: without a bar-bending schedule, 4.6 kg per sq ft gets bought for a design that needs 4.0 because the mistri orders “thoda extra”. These figures are an example built from our rate data, not a measured case.
Clauses every construction agreement should have
Scope and BOQ as an annexure, with brands and quantities.
Rate basis — built-up area, how it is measured, and what is excluded.
Payment schedule tied to stages, with the percentage at each and what “stage complete” means.
Timeline with a start date, milestones and a completion date; penalty per week of contractor delay; extension for authority or weather delay.
Variation clause — any change priced in writing before execution.
Escalation clause — whether material price rises are absorbed, shared, or passed on above a threshold.
Quality clause — IS codes referenced, cube tests, curing, right to third-party inspection.
Warranty — structure, waterproofing, finishing, in years.
Site safety and labour compliance — who is responsible for insurance and accidents.
Termination — how either side exits and how work done is valued.
Dispute resolution — arbitration seat and jurisdiction.
GharVistar’s standard agreement has all eleven; ask any contractor for theirs before you sign.
How to compare three quotes on one sheet
Put the three quotes in three columns and the BOQ items in rows: steel kg/sq ft, cement grade, concrete grade, brick type, waterproofing system, plumbing brand, electrical brand, tile brand and size, door type, paint system, site engineer (yes/no), supervision (daily/weekly), warranty (years), timeline (months), exclusions. Fill every cell. The blank cells in the cheapest column are where its price comes from. If a contractor cannot fill the sheet, you have your answer.
Questions we hear on this topic
Can I do turnkey but buy some items myself?
Yes — clients often supply tiles, sanitaryware or the kitchen. We credit the BOQ amount for those items and fit what you buy.
What if I find the turnkey contractor’s steel is short?
You have the BOQ quantity and the delivery challans; weigh the steel on delivery, check the mill certificate, and the contract’s quality clause gives you the remedy. That is why the paperwork matters.
Is a percentage-fee (cost-plus) contract better?
It aligns incentives badly — the contractor earns more when the house costs more. It works only with an independent quantity surveyor checking every bill.
Do banks prefer turnkey?
They prefer a single estimate from a registered contractor with stage certificates — which turnkey provides by default.
The honest summary
If you have the time, the knowledge and a family member on site every day, a labour contract with a good local mistri will build you a fine house for a little less. If you have a job, a family and a phone that already rings too much, the turnkey premium is the cheapest insurance you will ever buy: it converts a hundred small decisions and a dozen ways to lose money into one rate, one timeline and one person accountable. Whichever way you go, the BOQ is the contract. A rate without a BOQ is a story, and stories get expensive around the second slab.
We publish our rates on every city page precisely so that the comparison is easy. Put ours next to the other two, line by line. If ours loses on a like-for-like sheet, you should choose the other one — and we mean that.
What a turnkey site actually looks like, week to week
Owners who have only seen labour-contract sites are surprised by how boring a turnkey site is. Material arrives on a schedule the engineer sets a week ahead; steel is stacked on sleepers under a tarpaulin and cut to a bar-bending schedule pinned to the wall; cement bags are counted in and out of a lockable store; the concrete mixer is calibrated by weight, not by the mistri’s bucket; slump is checked before every pour and cubes are cast and sent for testing. On Saturday evening the client gets a WhatsApp message with fifteen photographs, the stage completed, the stage next week and any decision needed — a tile shade, a switch colour, a window size. Once a month the client walks the site with the engineer. That is the whole relationship. The drama that people associate with building a house — the missing sand truck, the mistri who did not turn up, the electrician who cut the plumber’s pipe — is not a feature of construction; it is a feature of unsupervised construction.
The three questions that decide which contract to choose
Who will be on site at 8 a.m. every day? If the answer is “nobody from my side”, the contract must include supervision — which means turnkey, or item-rate with a hired engineer.
Who carries the risk when steel goes up ₹4 a kilo in month six? In turnkey it is written down. In the others it is you, silently.
Who do I call when the terrace leaks in year three? One party with a written warranty, or two parties blaming each other’s material.
Answer those three honestly and the decision usually makes itself. Then, whichever way it goes, get the BOQ.
GV
Written by the GharVistar engineering team
Sumit Chauhan (projects) and Md Parvej Ansari (engineering, NIT Jamshedpur). We build houses, builder floors, villas and commercial buildings across Delhi NCR. Every number in this article comes from our own BOQs and site data, cross-checked with the sources listed at the end.
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