Prime-ash
Commercial information

Get in touch

We work with local authorities, government departments, and heritage bodies across the United Kingdom

Office location

Address

142 Cavendish Street
London
W1G 9RD
United Kingdom

Working hours

Monday to Friday
9:00 AM to 5:30 PM

We are closed on public holidays and between 24 December and 2 January.

Project enquiries

For new project discussions, please use the enquiry form on our homepage or services page. Include details about your building, project scope, and timeline where possible.

Existing clients

If you are working with us on an active project, please contact your assigned project architect directly using the details provided in your engagement letter.

Professional office building exterior

Professional memberships

Our senior architects maintain full membership with the Royal Institute of British Architects (RIBA) and are registered with the Architects Registration Board (ARB). Several team members hold specialist accreditation in historic building conservation.

Procurement frameworks

We are approved suppliers on several public sector procurement frameworks, simplifying the engagement process for government clients. Contact us to confirm our status on your preferred framework.

Site visits

Initial site assessments are arranged following preliminary discussions. We conduct site visits throughout the UK and can accommodate requirements for security clearance where projects involve sensitive government facilities.