How much do architects charge for residential design? Understanding architects fees can be crucial when planning your project.
When planning a residential project such as an extension, loft conversion, refurbishment or new build, one of the first questions homeowners and developers often ask is, “How much will an architect charge?” Understanding architects’ fees can help you budget effectively and make informed decisions as you embark on project to create your ideal home.
At Astrid Architects, when we have an initial enquiry from a potential client, we like to discuss the project brief in detail first, in order to provide a bespoke fee quotation. This way we can provide the most accurate guide to the fees which will be due at different stages of the project – this can be very helpful when you’re budgeting and working out how to afford your new dream home or extended space.

Overview of Architect Fees
Architects’ fees can vary widely depending on several factors, including the experience of the architect or practice; the complexity of the project; and your location. On average, you might expect to pay anywhere from 5% to 20% of the total construction cost for architectural services – it could be a higher percentage for a smaller project. Knowing the various pricing models can help clarify what to expect and help you ask the right questions when you start contacting architects.
Common Pricing Models
1. Hourly Rates: Some architects charge by the hour, with rates typically ranging from £70 to £150 or more, depending on their level, experience and location. This model can be beneficial for smaller projects or consultations.
2. Percentage of Construction Cost: This is one of the most common methods, particularly during the later stages of a project, where architects charge a percentage (usually between 5% and 15%) of the total construction cost. This approach aligns the architect’s fees with the project’s overall budget.
3. Fixed Fees: For certain projects, especially well-defined ones, an architect may offer a fixed fee. This can provide clarity and help you avoid unexpected costs. At Astrid Architects, we undertake most of RIBA Stages 0-4 on a fixed fee or fee estimate, to give our clients the most certainty possible from the outset of the project.
4. Retainers: Some architects may request a retainer fee upfront, especially for larger or more complex projects. This amount is typically deducted from the total fee.

Factors Influencing Costs
Several factors can influence the cost of architectural services:
– Project Size and Complexity: Larger and more complex projects typically require more time and expertise, leading to higher fees. However, at the other end of the scale, some very small projects can also be complicated, especially if you’re dealing with existing structures. In this case, although the overall fee may be lower, you might find that you’re paying a higher percentage of the build costs.
– Location: Architect fees can vary significantly by region. Urban areas often see higher costs due to increased demand and living expenses, and expect to pay the highest fees in London.
– Experience and Reputation: More experienced architects or those with a strong portfolio may charge higher fees, but their expertise can add significant value to your project. The important thing to consider is how much the architect’s fees are as a proportion of the overall project – if you’re about to shell out tens or hundreds of thousands of pounds on an extension or new build, the difference in cost between the cheapest and more expensive architects would represent a tiny proportion of this cost. Therefore, it’s super important for you to find the right fit in terms of their approach, how much you feel like you’re being listened to, aligned values (for example on materials/sustainability) and the architect’s portfolio of projects.

Tips for Homeowners
1. Define Your Project Scope: Clearly outlining your project can help architects provide more accurate estimates.
2. Ask For Recommendations: Contact local friends, neighbours, builders or other consultants to ask for recommendations – this way you can see the work they’ve done in person as well.
3. Discuss Budget Early: Be upfront about your budget during initial meetings to ensure your vision is viable.
4. Consider Value Over Cost: While it’s important to manage costs, the right architect can save you money in the long run through good quality design, excellent communication, and specialist experience when the project is on site.
Ready to start your project?
Get in touch with us today to discuss your home design project and our services and fees.