The 10 extension builders from Google's results for East London, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
on GoogleEpping
Wj Construction Ltd builds house extensions for residential clients in Walthamstow, East London, and Essex. Managing projects from design through to foundation laying and physical construction, the company helps householders increase indoor living space.
020 8945 3474 Brickfield House, Epping CM16 6TH
on GooglePopes Dr, London
LCCL Construction is a design and build company converting lofts, extending houses and renovating homes across East London. It works in areas such as Hackney, Walthamstow, Leyton and Bow, where much of the housing is Victorian terraces, and provides architectural design as part of its service.
020 8037 7332 3rd Floor, Hathaway House, Popes Dr, London N3 1QF
on GoogleCuffley, Potters Bar
Abbey Extensions designs and builds home extensions, garden rooms, and loft conversions across Cuffley, Potters Bar, and East London. The firm manages full property renovations to expand and update residential spaces.
Cuffley Place, Sopers Rd, Cuffley, Potters Bar EN6 4SG
on GoogleRomford
KPD Construction builds loft conversions, house extensions, flat conversions, and new builds across East, North, and Central London, as well as Essex. Services also include kitchen renovations and full property refurbishments.
07825 788773 8 Melbourne Gardens, Romford RM6 6TA
on GoogleIlford
G&S Builder Ltd offers house extension services to property owners in Ilford and across East London. The company builds a range of extension styles, utilising modern tools and current design trends to complete domestic projects.
07904 607244 97 Chester Rd, Ilford IG3 8PX
on GoogleEast London
Simply Extend builds house and kitchen extensions across East and South London, covering areas such as Croydon, Lambeth and Wandsworth. The business manages residential builds through assigned project managers, handling groundworks, brickwork construction, plastering and internal fittings.
East London
Simply Construction Group carries out residential building projects across Richmond and Bromley. The firm handles architectural design through to construction delivery, specialising in home extensions, loft conversions and basement conversions for local property owners.
East London
Plus Rooms provides house and kitchen extension services to homeowners in Richmond-upon-Thames and across South West London. The company manages projects from design through to construction, handling planning regulatory requirements along the way. Its team also builds loft conversions.
Oakwood Hill, Essex
Tarj Construction carries out house extensions, loft conversions and property refurbishments across East London, including Redbridge, Waltham Forest and Wanstead. The company works on Victorian and Edwardian terraced houses, period conversions and commercial units.
020 3576 4041 Suite 102, Grangewood House, Oakwood Hill Industrial Estate, Oakwood Hill, Essex IG10 3TZ
East London
Operating in East London, Extension Builders East London constructs residential property extensions across the local region. The business helps homeowners expand their living areas through planned building and structural improvements.
In East London, single storey, per m² typically costs £2,100 – £2,900. Labour in Greater London runs 16% above the UK median, which accounts for most of the difference from the same job elsewhere.
These are the firms from Google's results for "house extensions east london". They are ranked on Google rating, online presence and other factors.
The figures above are East London ranges. These explain what drives them, so you can read a quote properly.
Per-square-metre prices for single-storey, two-storey, side return and kitchen extensions, costs by size, the fees outside the build price, and planning limits by nation.
The permitted development limits for extensions, lofts, porches and outbuildings in England, where the rights do not apply, what prior approval and a certificate cost, and how Wales, Scotland and NI differ.
When the Party Wall Act applies, which notice to serve and how far ahead, what your neighbour can do, what a surveyor's award costs, and the rules in Scotland and NI.
Under permitted development, three metres for a terrace or semi and four for a detached, doubled to six and eight under the prior approval process. Height, materials and how much garden you cover all carry separate limits, and none of it applies in a conservation area.
If you are excavating within three metres of a neighbour's foundations or building on the boundary, yes. You must serve notice two months before work starts. Skipping it is the most common reason extension projects stall.