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Summerstown architects.
Britain's No. 1

Garratt Park may be popular, but wait until people see your new home extension.

Avoca Road, Wandsworth
Alexandra Road, Merton
Matthews Street, Wandsworth
Coteford Street, Wandsworth
Airedale road, Wandsworth
Foxbourne Road, Wandsworth
Sternhold Avenue, Lambeth
Herbert Road, Merton
Fernlea Road, Merton
Tooting Terrace, Wandsworth
Cecil Road, Merton
Sellincourt Road, Wandsworth

We’re Britain’s #1 architectural practice for all-things extending

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Merton planning application stats

Applications in Summerstown are decided by the Merton planning team. Our planning permission win rate is...

92%

vs 85% national average
Resi's planning consultant

Danielle Price

Former Wigan Council Planning Officer
Merton's planning officers

Wendy Wong Chang, Francis Saayeng, Lan Pham, Tim Bryson,...

217 Number of applications
199 Granted applications
18 Refused applications
5 - 490 days Submit to complete time
8w 4d Average decision time

We've had 217 applications approved in Merton.

Approved 02 Dec '24
Ground floor rear & side Flat Ground Floor 33 Trewint Street SW18 4HB
Approved 05 Jan '24
Ground floor side 53 Burntwood Lane SW17 0JY
Approved 05 May '22
Unknown extension type 11 Brooklands Avenue Wimbledon Park London SW19 8EP
Approved 11 Oct '23
Loft main dormer 10 Franche Court Road London SW17 0JU
Approved 21 Jul '23
Ground floor rear & side 12 Trewint Street SW18 4HA
Approved 30 May '23
Ground floor side 41 Quinton Street London SW18 3QR
Approved 24 Apr '23
Ground floor side 53 Burntwood Lane SW17 0JY
Approved 25 Aug '22
Two storey rear 45 Flat First Floor Ravensbury Road SW18 4SA
Approved 06 Apr '21
Two storey rear and loft main dormer Flat First Floor A 3 Steerforth Street SW18 4HH
Approved 22 Oct '20
Ground floor rear & side Lower Maisonette 3 Steerforth Street SW18 4HH
Approved 04 Jan '21
Ground floor rear and loft main dormer & mansard 448 Garratt Lane SW18 4HL
Approved 28 Sep '20
Unknown extension type 448 Garratt Lane SW18 4HL
Approved 11 Oct '19
Loft main dormer & mansard 12 A Franche Court Road SW17 0JU
Approved 04 Oct '19
Ground floor rear & side 12 A Franche Court Road SW17 0JU
Approved 23 Jun '25
Two storey rear and loft main dormer 76 A Waldron Road SW18 3TD

Average construction costs for the Merton area.

In the last year, the construction costs* we've seen for the Summerstown area are as follows
Rear

£k

Side Infill

£k

Loft

£k

First Floor

£k

*Costs are up to ‘first fix’ and exclude VAT

More extensions we’ve completed in Merton

Explore designs, build costs and planning applications for more of our extensions.

Why people near you love Resi

Over 10200 homeowners have trusted Resi with their home extensions — that’s more than any other architect in the UK.
Came across Resi in 2017 and have to say their service has been exceptional on all fronts. Prompt...
Ann Loft Hip To Gable With Main Dormer
Alexander Ell Used to do initial design phase for a loft conversion and internal remodelling. Very helpful in t...
Alexander Loft Main Dormer
The best out there I have been with Resi now for over a year and they have looked after me well. They have helped me...
Dharam Two Storey Side
Luisa Wolf The planning permission (1st of that kind on my neighbourhood) for the extension of my house was...
Luisa Loft Main Dormer
Peter Spence So easy! Previous experience with face to face architect not great. But Resi are so easy to deal ...
Peter Ground Rear
Resi are a great investment! Resi have been great. We knew we needed help and saw a couple of “all in” firms before we found...
Helena Ground Rear
Patricia Ladly I had my reservations about getting design plans on-line but the whole process has been very prof...
Patricia Loft Main Dormer
STEVE BOWMAN Very impressed with the service and the attention to detail to my requirements. the team were ver...
Steve Ground Rear
Freddie White Great service, easy to use and very fast results, highly recommend. Easy process from start to fi...
Freddie Whole House New Build
Absolutely Brilliant! I was recommended to use Resi by a friend of mine. I found the whole process an absolute dream. F...
Ayisha Ground Side Infill

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Builders we work with in Merton

Fittra Construction

Covers Summerstown
4 Resi projects

N-Vico Ltd.

4.0
5 reviews
Covers Summerstown
9 Resi projects

My Extension PM Ltd.

4.8
27 reviews
Covers Summerstown
140 Resi projects

Kovacs Construction Ltd

4.0
7 reviews
Covers Summerstown
37 Resi projects

Home Republic Limited

4.7
7 reviews
Covers Summerstown
45 Resi projects

Flow Property Service Ltd

Covers Summerstown
3 Resi projects
Other architects in Summerstown

The Planning Man, The Plan Hub, Ascania Architects, AK Studios - Architecture & Interiors, Evolve Party Wall Surveyors & Evolve Design Architecture, Rubrics Architects, Canopy Planning Services ltd

Postcodes we serve in and around Summerstown

SW17, SW18, SW19, SW20, KT1, KT2, KT3, KT4, KT5, KT6, KT7, KT8

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