Building services in Richmond
House extensions
- Single-storey extensions
- Double-storey extensions
- Side extensions
- Side return extensions
- Wraparound extensions
- Kitchen extensions
- Orangeries
- Glazed and contemporary extensions
- Porches
Loft conversions
- Dormer loft conversions
- Hip-to-gable loft conversions
- Mansard loft conversions
- Rooflight loft conversions
- Bungalow loft conversions
Garage, basement and barn conversions
New build homes
Renovations and structural work
Design and approvals
Guide prices in Richmond
| Project | Guide range (inc VAT) |
|---|---|
| Kitchen extensions | £2,900–£4,400 per m² including a mid-range kitchen |
| Hip-to-gable loft conversions | £71,500–£101,500 for a hip-to-gable with rear dormer |
| House renovations | £1,150–£2,350 per m² for a medium to full renovation |
| Structural alterations and knock-throughs | £5,750–£12,500 for a typical knock-through with steel beam |
| Porches | £8,500–£21,000 from a 3 m² porch to a small front extension |
| Orangeries | £3,100–£4,400 per m² of floor area |
Prices across London are typically 30% above the UK average for this kind of work, which is reflected in the range for Richmond.
Planning permission in Richmond
In England a single-storey rear extension is often permitted development: broadly up to 3 metres deep on a semi-detached or terraced house and 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary, and covering no more than half the garden. The larger home extension scheme allows up to 6 or 8 metres if you notify the council first and neighbours have a chance to comment. In conservation areas, National Parks and National Landscapes the larger home extension route, side extensions and cladding are not permitted development. Flats and houses whose rights have been removed need a planning application, and listed buildings need listed building consent.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
About building in Richmond
Victorian and Edwardian terraces dominate many London streets, which is why side return, wraparound and mansard projects are so common here.
We work across Richmond and neighbouring areas such as Hayes, Twickenham and Kingston upon Thames. Postcodes we cover in Richmond include TW9.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions from homeowners in Richmond
Do you work in Richmond?
Yes. We take on extensions, loft conversions, conversions, renovations and new builds across Richmond, including postcodes TW9.
Is the home visit free?
Yes. The first visit to discuss your project and measure up for a quote is free, with no obligation.
How much does a loft conversion cost in Richmond?
A rear dormer loft conversion in Richmond typically costs £62,500–£88,500 for a typical rear dormer with en-suite, including VAT.
Do I need planning permission for an extension in Richmond?
In England a single-storey rear extension is often permitted development: broadly up to 3 metres deep on a semi-detached or terraced house and 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary, and covering no more than half the garden. The larger home extension scheme allows up to 6 or 8 metres if you notify the council first and neighbours have a chance to comment. In conservation areas, National Parks and National Landscapes the larger home extension route, side extensions and cladding are not permitted development. Flats and houses whose rights have been removed need a planning application, and listed buildings need listed building consent.
How much does an extension cost in Richmond?
A single-storey extension in Richmond typically costs £2,550–£3,750 per m² of floor area, and a double-storey extension £2,150–£3,250 per m² of floor area (both floors), including VAT.