How much a quantity surveyor costs in the UK

A quantity surveyor in the UK costs about 1.7% to 3.2% of the build cost for the full pre and post contract service, or £400 to £700 a day if you take one on freelance, and £100 to £250 an hour for one off advice. The bigger the project, the smaller that percentage gets. What you are actually buying is one person whose whole job is knowing what your building should cost, and being able to prove it when someone disagrees.

Here is where that money earns itself back, and it is duller than it sounds. Most months the work is measuring what has actually been built against what the contractor has claimed for, then correcting the difference before it gets paid. On a live build that gap is routinely tens of thousands of pounds. It is the least glamorous line on our invoice and usually the one that pays for the rest.

So what does a quantity surveyor actually cost?

There is no fixed price list, because RICS scrapped its mandatory fee scale years ago. So a QS quotes one of four ways, and the right one depends entirely on the job. Here is the shape of it in 2026 money.

The percentage band is the one people quote most, and it is worth reading it the right way round. A £300,000 job sits near the top of that range because the work of pricing and running it barely shrinks with the value. A £6m job sits near the bottom, because the effort does not grow sixfold. The median freelance day rate nationally has been sitting around £613 to £700, with the most common bracket a good bit lower at £400 to £450. If a rate lands well outside that, ask what is driving it before you argue it down.

What are you actually paying for?

The fee buys a chain of work that runs from the first sketch to the last invoice. At the feasibility stage it is an order of cost estimate, built to the RICS New Rules of Measurement (NRM1), which tells you whether the scheme is affordable before anyone spends real money on design. As the drawings firm up it becomes a detailed measure and a bill of quantities under NRM2, which is the document that lets three contractors price the same job on the same basis, so you are comparing like with like instead of guessing.

Then the build starts, and the quantity surveyor's job changes. Now it is monthly interim valuations, checking that the work claimed for is the work in place, pricing every variation as it lands so you are not handed a surprise at the end, managing the retention (5% is the JCT standard, half of it released at practical completion), and finally negotiating the final account. That last one is where a good QS earns their keep or a weak one costs you, because the difference between a well argued final account and a rolled over one is often a percentage point or two of the whole build. On a £2m job that is real money.

Percentage, day rate or fixed fee: which is the fair one?

Here is where we lose friends. I will not quote a percentage fee on a small job, and I think any consultancy that defaults to one is quietly backing the overrun. A percentage fee pays us more when your building gets more expensive. On a scheme under about £500,000 we quote a fixed fee, because the amount of work is knowable and you deserve to know what our bit costs before you commit.

The honest weakness of the fixed fee is ours to carry. If the scope balloons after we have priced our own hours, we either absorb the extra work or come back to you with an awkward conversation, and we have got that estimate wrong before and worn the cost. That is the trade. A percentage fee flexes with the job and never leaves us short. A fixed fee puts the risk on us, which is where we think it belongs on a job we are meant to be controlling.

Day rates sit in between, and they are right for a narrow thing: a second opinion, a dispute, a burst of extra capacity when your own team is stretched. What day rates are wrong for is a whole project, because nobody is watching the total. You are buying hours, not an outcome.

What a good quantity surveyor saves you

The number that matters is not the fee. It is the gap between what a project costs with cost control and what the same project costs without it, and that gap is almost never in the quote. Value engineering that trims a specification without gutting it. Provisional sums that get pinned down before they drift. Prelims that a contractor has quietly counted twice. A final account argued down to what the work was actually worth. On a well run job the fee is often recovered inside the first two or three valuations, and everything after that is the project paying you back.

That is the whole argument for the role.

The other half of the value is independence, and it is why lenders insist on it. When a bank funds a development it does not take the borrower's word for progress, it appoints a monitor to confirm the money drawn matches the value built. That is a cost discipline pointed at the lender's risk rather than the developer's, and it is the same measuring muscle at work. If you want a sense of how that reads from the funding side, our fund monitoring and due diligence service and our project monitoring and auditing work are built on exactly this.

What does this look like on a Stockport build?

Round here it changes the maths, and it is worth saying why. Most of the work across Stockport and the wider Greater Manchester belt lands on brownfield: former mills, old industrial yards, tight town centre plots like the ones around Chestergate. Anything built before 2000 hides its costs behind old brick, so the cost plan on a conversion carries far heavier provisional sums than a clean new build, and the QS's job early on is to shrink those unknowns with survey work rather than let them ride into the tender. The regional picture matters too. RICS tracks tender prices through its Building Cost Information Service, and North West rates sit below London, so a fee or a rate quoted off a London benchmark does not map onto a job here. We price against local numbers, on local stock, because that is the only figure a Greater Manchester developer can actually build to.

Common questions

Is a quantity surveyor the same as a building surveyor?

No. A quantity surveyor deals with the cost of a building: measuring it, pricing it, valuing the work and settling the final account. A building surveyor deals with the fabric and condition of a building, surveys, defects, party walls. Different discipline, different fee, and a job that needs one rarely needs the other.

Do I need a quantity surveyor on a small project?

Not always, and I would not pretend otherwise. On a straightforward job under about £150,000 with a builder you trust and a fixed price contract, the fee may not earn out. The moment there is a tender to compare, a lender to satisfy, or a contract with variations in it, the sums change quickly. If you are unsure, an hour of advice at £100 to £250 will tell you whether you need the full service.

When should a quantity surveyor come on board?

Earlier than most people ask. The cheapest savings are the ones found at feasibility, before the design has locked in a cost you then have to live with. A QS brought in at tender can still protect you. One brought in to firefight a final account is usually there to limit the damage.

What a quantity surveyor costs is the easy question. What they save you is the one that decides whether the fee was worth it, and on most projects with real money in play it is. If you are planning a build in the North West and want to know what it should cost before you commit to what it will, look at our cost management and quantity surveying service, talk to us about the wider project management around it, or call us on 0161 476 4456. We would far rather price the job honestly at the start than explain the overrun at the end.