Extending your home in Ilford
Every type of house extension in Ilford, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Postcode districtsE12, E20, IG1, IG2, IG3, IG4
- Price regionLondon (×1.3)
- Planning rulesEngland
- Site visitFree, no obligation
Which extension suits a Ilford home?
In London, space is at a premium and gardens are often short, so side returns, wraparounds and carefully planned rear extensions tend to make the most of every metre.
Depending on the plot, kitchen extensions and glass box extensions are often the strongest options, with wraparound extensions worth considering where there is room.
What extensions cost in Ilford
We publish guide prices so you can budget before anyone visits. For Ilford they are adjusted by ×1.3, the factor we use across London.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Extensions over a garage | 12 m² | £32,500 – £42,500 |
| Side return extensions | 11 m² | £34,000 – £43,000 |
| Orangery extensions | 16 m² | £58,000 – £73,000 |
| Wraparound extensions | 25 m² | £74,500 – £94,500 |
| Double-storey extensions | 32 m² | £74,500 – £98,000 |
Covering Ilford and nearby
Site visits are available across Ilford (E12, E20, IG1, IG2, IG3, IG4). We also work in nearby Manor Park (1 mile), Barking (2 miles), Becontree (2 miles), Leytonstone (3 miles), West Ham (3 miles). Just over the Essex border, Waltham Abbey is about 10 miles away.
Planning rules in Ilford
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In England a single-storey side return infill is often permitted development if it stays within the height limits and is no wider than half the width of the original house. Conservation areas, listed buildings and flats always need an application, and the boundary wall usually brings in the Party Wall Act.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
Every extension type in Ilford
- Wraparound extensions · from £46,500
- Extensions over a garage · from £31,000
- Annexe extensions · from £71,500
- Kitchen extensions · from £35,000
- Pitched roof extensions · from £28,500
- Utility and boot room extensions · from £18,000
- Porch extensions · from £5,200
- Orangery extensions · from £39,000
- Building regulations for extensions · from £1,150
- Timber frame extensions · from £27,000
- Glass box extensions · from £39,000
- Planning permission for extensions · from £450
- Extension plans and drawings · from £1,550
- Bedroom extensions · from £33,500
- Side extensions · from £28,500
- Conservatory replacement extensions · from £26,000
- Bungalow extensions · from £34,000
- Flat roof extensions · from £27,000
- Side return extensions · from £23,000
- Home office extensions · from £20,500
- Single-storey rear extensions · from £27,000
- Double-storey extensions · from £49,000
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Ilford
How much does an extension cost in Ilford?
Using our London factor (×1.3), a standard-spec single-storey extension of 20 m² is a guide £53,000 to £68,000 including VAT, and a 32 m² two-storey extension £74,500 to £98,000. Your written price follows the survey.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
How long does an extension take in Ilford?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Ilford, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Ilford
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.