How Much Does an Architect Cost in 2025?

If you’re planning a renovation, extension, or even buying a home, one of the first questions you’ll ask is: “How much does an architect cost?” The truth is, there’s no single answer — every project, site, and client brief is unique, and there’s no industry standard pricing in the UK.

Architects typically charge in three main ways: as a percentage of the build cost, a fixed lump sum, or by hourly rate — sometimes using a mix of all three. Each method has its pros and cons, and knowing how they work will help you compare quotes fairly.

This guide explains each fee structure in plain language and shows how they apply to the three main stages of a project: design and planning, technical design, and construction. We also share example costs based on real Studio Elle Architecture projects, so you can see what similar work might cost for your home.

You’ll also find the key questions to ask before appointing an architect, so you can avoid surprises and ensure the scope, deliverables, and costs are clear from the start.

By the end, you’ll be equipped to budget confidently and choose the right architect for your project.