How Much Does it Cost to Hire a Building Design Service?

Do you need a building design consultant?

Before looking into the cost, it's important to ask yourself whether you actually need one. Depending on the complexity of the project and building regulations, it could be worth paying for a professional service. On the other hand, for something simpler, and with a good knowledge of building regulations, you can find information online and in government publications to undertake a simple building project without needing a consultant. 

How much does a building design consultant cost for a new build?

Generally, you could expect to pay an hourly rate or lump sum for the entire project. Typically, architects and designers charge between 5% and 15% of the total construction costs. The hourly rate can range between £40 and £150. This cost can vary considerably depending on the project, the designer’s experience and qualifications, and the size and complexity of the building. On average, it is reasonable to expect to pay around £2,400 for a basic new-build home.  

How much do building design consultants charge for an extension?

It is most common for architects and designers to charge a percentage fee on extensions. The typical cost of an architect for an extension is around 6-12% of the total construction costs. The exact cost will be determined by the location, complexity, and size of the project. An experienced designer should be able to provide guidance on the necessary costs and help to minimise them. 

What is the hourly rate of a building design consultant?

An architect or designer’s hourly rate ranges from £40 to £150. The cost is dependent on the individual’s experience and qualifications. Experienced professionals may charge more as they have greater knowledge and skills to offer. It is important to check the person’s rates before hiring them and to bear in mind that the total fees, including any additional costs, will add up over time. 

Key Takeaways for Hiring a Building Design Consultant

When considering whether or not to hire a building design consultant, it is important to take into account the complexity of the project and the potential need for a professional service. The costs of a building design consultant vary depending on the project, but typically architects and designers will charge an hourly rate or a lump sum fee for the entire project. An hourly rate is likely to range between £40 and £150.

On an extension, an experienced designer could be expected to charge between 6-12% of the construction costs, while for a new build, this could be between 5-15%. Ultimately, when choosing a professional to work with, it is important to find someone who is knowledgeable and experienced in a particular task and who provides value for money.