A house extension can transform your home, adding valuable living space. Costs cover foundations, structural work, roofing, glazing, internal fit-out, and connection to existing services. In Maida Vale (W9), costs reflect the area's Inner London market position, with a 5% premium over London averages.
Maida Vale is an elegant residential area known for its wide tree-lined avenues, grand Edwardian mansion flats, and proximity to Little Venice and the Regent's Canal.
| Specification | Price per sqm | Typical 25sqm Project | Includes |
|---|---|---|---|
|
Standard
Quality materials, clean design
|
£2,625 – £3,360 | £65,625 – £84,000 | All structural work, standard fixtures, full fit-out and decoration |
|
Premium
Designer brands, bespoke elements
|
£3,360 – £4,200 | £84,000 – £105,000 | Premium materials, designer fixtures, underfloor heating, smart controls |
|
Luxury
Finest materials, fully bespoke
|
£4,200 – £5,775 | £105,000 – £144,375 | Bespoke joinery, natural stone, top-tier appliances, architectural detailing |
Prices include VAT and are based on Maida Vale (W9) market rates. Prices reflect Inner London market conditions and local construction costs. Actual costs depend on site-specific factors. All prices are guide estimates for 2025.
Here's what a typical 25sqm house extension project would cost in Maida Vale at each specification level.
The Maida Vale Conservation Area protects the distinctive Edwardian mansion flat character. External alterations are carefully controlled.
Key streets and roads in Maida Vale include Maida Vale, Elgin Avenue, Randolph Avenue, Castellain Road, Lauderdale Road. Properties in these locations often have specific architectural characteristics that influence renovation costs, including mansion flat leasehold considerations, communal structural elements, canal proximity affecting basement waterproofing.
Every house extension is unique. Let our RIBA chartered architects provide a detailed, no-obligation estimate tailored to your property and specification.
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