House extension cost
in Shepherd's Bush.
Shepherd's Bush — W12 — spreads west from the green into a dense grid of Victorian and Edwardian terraces. One of London's most active loft conversion markets thanks to a mix of original housing stock and rising property values.
What makes extension work in Shepherd's Bush distinct.
Housing: Two- and three-storey Victorian terraces, many with original outriggers, plus pockets of 1930s semi-detached housing on the western edges.
Planning: Askew Village and Wendell Park conservation areas cover specific pockets; most of central W12 retains PD rights.
Applications go to LB Hammersmith & Fulham. We submit on your behalf and handle party wall awards, build-over agreements and conservation officer correspondence end-to-end.
The five extension types — W12 numbers.
All figures inclusive of design, planning, build, contingency and VAT. The Shepherd's Bush multiplier (0.98×) reflects local labour, scaffolding logistics, conservation requirements and finish expectations.
The 2026 London Extension Cost Guide.
Borough-by-borough pricing, a full £200k cost breakdown, PD vs full planning explained, and the seven hidden costs to watch for in Shepherd's Bush and beyond.
Send me the guide.
What Shepherd's Bush homeowners ask us.
How much does a house extension cost in Shepherd's Bush in 2026?
Typical 2026 Shepherd's Bush ranges (inc. design, planning, build, contingency & VAT): side-return extensions £88k–£157k; single-storey rear £108k–£206k; wraparound £167k–£314k; double-storey rear £176k–£372k; basement £245k–£735k. The Shepherd's Bush multiplier (0.98×) reflects local labour rates, scaffold logistics and finish expectations.
Do I need planning permission for an extension in Shepherd's Bush?
Askew Village and Wendell Park conservation areas cover specific pockets; most of central W12 retains PD rights. Outside conservation areas, single-storey rear extensions up to 3m (terrace/semi) or 4m (detached) usually qualify for permitted development. Side-returns, wraparounds, double-storey extensions and anything in a conservation area need full planning. Applications go to LB Hammersmith & Fulham.
What extension type works best for Shepherd's Bush houses?
Two- and three-storey Victorian terraces, many with original outriggers, plus pockets of 1930s semi-detached housing on the western edges. On this housing stock, the most common 2VP extension is a single-storey rear or wraparound — adding 20–35 m² of open-plan kitchen-diner. Double-storey extensions become viable on properties with rear gardens deep enough to absorb the additional volume without overshadowing.
How long does an extension take in Shepherd's Bush?
Allow 8–12 weeks for design and planning (longer in conservation areas), then 16–22 weeks on site for a single-storey, 22–30 weeks for a wraparound or double-storey, and 28–40 weeks for a basement. LB Hammersmith & Fulham processes planning applications in approximately 8–13 weeks depending on backlog.
What hidden costs catch Shepherd's Bush homeowners out on extensions?
In W12 the top items are: party wall awards (£1,000–£3,000 per neighbour — common on terraced streets), build-over agreements with Thames Water (£300–£1,500 where drains run beneath the proposed extension), conservation officer consultations, structural engineer fees, drainage and asbestos surveys, and VAT at 20% on top of the base build cost. All of these are itemised in our fixed-price quote.
Does 2VP work on Shepherd's Bush extensions?
Yes — Shepherd's Bush is within our core London catchment. Our studio is at 20 Dawes Road in Fulham, 2.5km from Shepherd's Bush. We've delivered extensions across the W12 postcode and our subcontractor network covers Hammersmith & Fulham. Free site visit, fixed-price quote, 10-year HomePro guarantee on the finished work.
Extension pricing for Shepherd's Bush’s neighbours.
Twenty minutes on site in Shepherd's Bush.
On us.
Nick Elias RIBA and Vladimir will visit your Shepherd's Bush home, walk the site, check planning constraints, advise on PD vs full planning, and give you a realistic budget and programme — even if an extension isn’t the right move.
One number. Sixty seconds. No callback.
Price your Shepherd's Bush extension using the same 2026 rate card we quote real clients with.
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