How much do architects charge per hour?

Hourly rates are only one of three ways UK architects bill, and they suit certain jobs better than others. Here's what the rate covers, what moves it, and when hourly is the right choice.

What the hourly rate depends on

Quoted rates vary because the people behind them vary. The main drivers:

• Seniority: a practice principal or chartered architect commands more than an assistant or Part 2 architect working under supervision. Many practices bill different rates for different staff on the same job.
• ARB registration: only those on the Architects Registration Board register may legally use the title 'architect'. A registered architect typically charges more than an architectural technologist or designer doing similar drawing work.
• Location: London and the South East sit at the top of the range; the Midlands, North and Wales are generally lower.
• Specialism: conservation, listed-building or sustainability expertise carries a premium.
• Practice overheads: a larger practice with offices and support staff usually charges more per hour than a sole practitioner working from home.

Indicative UK figures for guidance, 2025–2026. Sources: RIBA fee guidance and Checkatrade architect cost guides.

When hourly billing makes sense

Hourly rates suit work where the scope genuinely can't be defined up front. Typical examples:

• Initial feasibility and advice: a short engagement to test whether your idea is workable before committing to a full project.
• Planning support: responding to a planning officer's queries, attending a meeting, or advising on a refusal where the amount of work is open-ended.
• Small, one-off tasks: a single measured survey, a quick drawing tweak, or a site visit to inspect an issue.
• Expert input on someone else's project: reviewing another professional's drawings or giving a second opinion.

For a full project — design, planning application, building-regulations drawings and on-site stages — most architects move to a fixed fee or a percentage of the build cost, because that gives you cost certainty. Open-ended hourly billing on a long project can run up quickly, so it's worth agreeing a cap or converting to a fixed fee once the scope is clear.

Hourly versus fixed and percentage fees

UK architects use three main billing models, and the right one depends on the job. Hourly is the most flexible but the least predictable; a percentage of construction cost scales automatically with the project; a fixed lump sum gives the clearest budget for defined work.

A common pattern is to bill the early, uncertain work — feasibility and initial advice — by the hour, then switch to a fixed fee or percentage once the brief and scope are settled. That way you only pay hourly for the genuinely open-ended part, and you get cost certainty for the bulk of the work. When you receive an hourly quote, ask three things: what the rate is for each person who'll work on your job, roughly how many hours the task is expected to take, and whether there's a cap beyond which they'll check in before continuing. Those answers turn a bare hourly rate into something you can actually budget against.

Indicative comparison of UK architect billing models. Source: RIBA fee guidance.

Questions to ask before agreeing an hourly rate

An hourly rate on its own tells you very little — what matters is how it's applied. Before you agree to hourly billing, get clear answers to a few practical questions so you can actually predict the bill:

• Whose rate is this? Practices often bill different rates for the principal, a chartered architect and an assistant. Ask who will actually do your work and at what rate, because a 'cheap' headline rate can hide a more expensive senior person doing the bulk of it.
• How many hours do you expect this to take? Even a rough estimate turns an open-ended rate into a budget. A reputable architect will give you a realistic range for a defined task.
• Is there a cap or a check-in point? Agreeing that they'll pause and consult you before exceeding a set number of hours protects you from an open-ended bill on a job that turns out larger than expected.
• How is time recorded and invoiced? Ask whether you'll see a timesheet or breakdown, and how often you'll be invoiced, so there are no surprises.
• Are travel and disbursements charged? Site visits may include travel time or mileage, and printing can be extra — confirm what's inside the rate and what's on top.

With those answers, an hourly arrangement becomes controllable rather than open-ended. The architects who are most transparent about how their hourly billing works are usually the ones who manage it most fairly, because they have nothing to hide in the way time is tracked and charged. If a practice is vague about any of these points, that's a reason to ask for a fixed fee or a not-to-exceed cap instead, so the cost can't quietly run ahead of the work.

Frequently asked questions

Sources & further reading

• RIBA — how architects charge and fee guidance
• Checkatrade — architect fees and cost guide
• HomeOwners Alliance — architect costs and fees

Figures on this page are typical UK ranges drawn from published sources and depend on your specific project. They are guidance, not a quotation.