Forest Hill architects.
Britain's No. 1
Horniman Gardens may be popular, but wait until people see your new home extension.
We’re Britain’s #1 architectural practice for all-things extending
Be cost efficient on designs + planning support
Get your project sorted without the headaches
Unlock expert guidance from ex-planning officers
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Lewisham planning application stats
Applications in Forest Hill are decided by the Lewisham planning team. Our planning permission win rate is...
90%
vs 87% national average
Catherine Warburton
Former Frome Council Planning OfficerAlena Firestone, Seth Harris, Anna Redmond, Carys Morgan,...
We've had 328 applications approved in Lewisham.
Average construction costs for the Lewisham area.
In the last year, the construction costs* we've seen for the Forest Hill area are as follows
Rear
£k
Side Infill
£k
Loft
£k
First Floor
£k
More extensions we’ve completed in Lewisham
Explore designs, build costs and planning applications for more of our extensions.Why people near you love Resi
Over 10700 homeowners have trusted Resi with their home extensions — that’s more than any other architect in the UK.
Feel confident knowing you're with the #1 architect on Trustpilot
Minimise planning risks with our 95% planning approval rate
Stress less with support from your dedicated Account Manager
Keep your project on time & budget with our project management app
Collaborate with your designer on screen-sharing calls
Get introductions to vetted contractors you can trust
Ensure quality with state of the art technology including laser scanners & 3D modelling software
Receive a premium service at an affordable price thanks to Resi's proprietary technology & processes
Builders we work with in Lewisham
Bodensee Construction
Fittra
Other architects in Forest Hill
Robert Potz Architects, GM Design Consultants, Keenan Project Designs - Chartered Architects (RIBA & ARB), Sophie McManus Architecture, Mimodo Architects ltd, Kappa Planning Ltd, ADL Design & Build Ltd
Other locations we do projects around Forest Hill
Perry Vale, Dulwich, Honor Oak, Sydenham Hill, Honor Oak Park, Upper Sydenham, Bell Green, Sydenham, Crofton Park, East Dulwich,
Postcodes we serve in and around Forest Hill
SE23, SE24, SE25, SE26, SE27, SE28, DA1, DA2, DA3, DA4, DA5, DA6
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Resi Design Ltd. trading as 'Resi' | Company No: 10471125
We are proud to employ architects registered with the Architects Registration Board and were awarded the mark for The Mayor's Good Work Standard for fair pay & conditions, wellbeing, skills, progression, diversity and recruitment.