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Aldwych architects.
Britain's No. 1

Victoria Embankment Gardens may be popular, but wait until people see your new home extension.

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Crescent Lane, Lambeth →
Brecknock Road, Islington →
Lorn Road, Lambeth →
Cambridge Gardens, Kensington and Chelsea →
Matthews Street, Wandsworth →
Riversdale Road, Islington →
Southville Road, Lambeth →
Glenarm Road, Hackney →
Poets Road, Islington →
Ashbourne Grove, Southwark →
Despard Road, Islington →
Lambert Road, Lambeth →

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

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Westminster planning application stats

Applications in Aldwych are decided by the Westminster planning team. Our planning permission win rate is...

81%

vs 85% national average
Resi's planning consultant

Danielle Price

Former Wigan Council Planning Officer
Westminster's planning officers

Desara Malaj, Toby Cuthbertson, Lucy Russell,...

36 Number of applications
29 Granted applications
7 Refused applications
0 - 279 days Submit to complete time
11w 5d Average decision time

We've had 36 applications approved in Westminster.

Approved 16 Mar '20
Ground floor rear & side infill 42 Methley Street London SE11 4AJ
Approved 08 Jul '24
Unknown extension type 129 New River Head, 173 Rosebery Avenue, London, EC1R 4UR
Approved 03 Apr '23
Loft main dormer 10 Rosemary Street, London, N1 3DU
Approved 13 Mar '23
Ground floor rear and loft main dormer & mansard 14 St Paul Street, London, N1 7AB
Approved 15 Mar '22
Ground floor rear and loft main dormer & mansard 18 Offord Road, London, N1 1DL
Approved 13 Aug '21
Ground floor rear 6 Fairstead Walk, Islington, London, N1 8QU
Approved 14 Sep '23
Ground floor rear & side Ground Floor Flat 76 Penton Place London Southwark SE17 3JS
Approved 09 Jun '22
Ground floor rear 34 Sutherland Walk London Southwark SE17 3EF
Approved 25 Jan '21
Ground floor side infill 78B Henshaw Street London Southwark SE17 1PD
Approved 03 Dec '20
Ground floor rear & side 118A Dawes Street London Southwark SE17 2EG
Approved 30 May '22
Loft main dormer & mansard 3 Chester Street London SW1X 7BB
Approved 16 Jul '21
Ground floor rear 12A Cosway Street London NW1 5NR
Approved 11 Jan '21
Ground floor rear 12A Cosway Street London NW1 5NR
Approved 27 Oct '20
Ground floor rear 12A Cosway Street London NW1 5NR
Show more

Average construction costs for the Westminster area.

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

£k

Side Infill

£k

Loft

£k

First Floor

£k

Try our build cost calculator
*Costs are up to ‘first fix’ and exclude VAT

More extensions we’ve completed in Westminster

Explore designs, build costs and planning applications for more of our extensions.
Show all 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 Ground Rear
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 R...
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 Westminster

Fittra Construction

Covers Aldwych
4 Resi projects

N-Vico Ltd.

4.0
5 reviews
Covers Aldwych
9 Resi projects

My Extension PM Ltd.

4.8
27 reviews
Covers Aldwych
140 Resi projects

Kovacs Construction Ltd

4.0
7 reviews
Covers Aldwych
37 Resi projects

Home Republic Limited

4.7
7 reviews
Covers Aldwych
45 Resi projects

Flow Property Service Ltd

Covers Aldwych
3 Resi projects
Check out our vetted builders
Other architects in Aldwych

London Central Portfolio Ltd, F Line Designs, M&A House Maintenance, The Plan Hub, ADOVA, London Central Portfolio Ltd, Armstrong Simmonds Architects Ltd

Other locations we do projects around Aldwych

Strand, Temple, Holborn, Adelphi, St Giles, Charing Cross, Waterloo, Chinatown, Bloomsbury, Farringdon,

Postcodes we serve in and around Aldwych

WC2, WC1, EC1, EC2, EC3, EC4, W1, W2, NW1, NW2, NW3, NW4

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Research hub Advice centre FAQs Loft Conversion Costs UK 2025: A Complete Guide to Budgeting Your Build How much does a side return extension cost? House extension without planning permission: what are the rules? The cost of a rear extension in the UK and how to save some pennies House extensions: everything a homeowner needs to know

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