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How much do architects cost?

6 min read
Oct '25 • by Rushal Ahmed

Quick summary

Architect costs typically range from 5% to 10% of your total project budget, which could be about £3,750 to £7,500 on a £75,000 build, for example. If you want project management, expect an extra 10% to 15%. Fees depend on location, project size, complexity, and the architect’s reputation, with London and high-end firms costing more.

Whether you’re undertaking a loft conversion, rear extension or just a renovation, having an architect by your side can help maximise the potential of your project. Not only can they increase your chances of planning success, but they’ll also make sure you squeeze every ounce of space out of your project. However, when it comes to this wonder professional, how much do they cost?

With residential architecture, there are many different stages involved in to process, and they all have their own individual costs. This is important to remember, as many firms lure customers in with low starting fees, which they’ll then make up by upping costs towards the end of the project.

At Resi, we want to be as transparent as possible with our pricing, and to help you avoid being burned elsewhere, here’s what you need to know…

How much does an architect charge?