Tobias Davidson Architects Tobias Davidson Ltd . Registered in Cardiff . 5906465

We charge as a percentage of the construction costs, on an hourly rate of £55 per hour, or as a lump sum, depending on our client’s preference. Most clients prefer to be charged on an hourly rate with an agreed fee cap. Invoices are issued monthly or at the end of key stages of the project.

We normally charge our services with reference to the Royal Institute of British Architects (RIBA) Work Stages. These divide into four main phases:

1. Inception - establishment of brief and budget (Stages A-B)
2. Design - development of design (Stages C-D)
3. Production Information - drawings and specification for builders to price (Stages E-H)
4. Construction - administration of contract between client and builder (Stages J-L)

Our fees depend on the size and complexity of the project in question so it is not possible to specify these before we have understood your needs. However, as a a rule of thumb, the fee for a full architectural service on a small domestic project normally works out at 12-18% of the construction cost. Of this fee, you might expect 10% to go on Stage 1 (Inception), 30% on Stage 2 (Design), 40% on Stage 3 (Production Information) and 20% on Stage 4 (Construction).

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81a Torriano Avenue . London . NW5 2SG . 020 7482 5726contact@tobiasdavidson.com