Free site visit - call 020 7476 2770
Double Storey Extensions in London
A double storey extension adds space on two floors at once: a bigger kitchen or living room downstairs and an extra bedroom or bathroom above. Per square metre, it is often better value than two separate projects.
Since 2013 · Fully insured · CSCS-carded, SMSTS-supervised · Free site visit and itemised written quote
What's included
Planning application, drawings and structural design
Building Control and Party Wall notices
Foundations, brickwork, steel, roof and windows
First-floor bedroom or bathroom, ground-floor open plan
Full fit-out and decoration
Price and time on site
From £110,000 incl. VAT, typically 16–22 weeks on site.
Questions we're often asked
Does it need planning permission?
In most London boroughs, yes. We manage the application.
Can we live at home during the build?
Usually yes, with some disruption when the new rooms are joined to the house.
Other house extensions services
Kitchen extensions · Garage conversions · Porch extensions · All house extensions
Often done together
En-suite installation · House rewiring · Wall removal & RSJ
Back to all domestic services.
Get a free quote
Send us your postcode and a few photos, or call 020 7476 2770 / 07903 854379. We'll arrange a free site visit and send an itemised written quotation. Get a free quote
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