Ilford and Redbridge

Builders in Ilford

Bes Cuni: Registered Building Inspector (Class 2), MCIOB, AssocRICS

Looking for builders in Ilford for a side return, a rear extension or a loft? Start with the age of your street, because Ilford was built in waves and each wave extends differently. BXC Developments is a Barking-based builder covering IG1 to IG6, and every job starts with a free site visit and a written, itemised quote.

The first wave was Archibald Cameron Corbett's. He began the Grange estate in 1894, then the Downshall estate at Seven Kings and the Mayfield estate at Goodmayes in 1898: long, parallel streets of continuous two-storey terraces on narrow frontages. He also pushed for the stations at Seven Kings and Goodmayes that made those estates work. On a narrow terrace the extra space usually comes from the side return, the back and the roof, because there is nowhere else for it to go.

The second wave was the 1930s. Aerial photographs from 1933 show new estates going up around Gants Hill and Cranbrook Road, and Gants Hill station opened on the Central line in 1947. A 1930s house with a hipped roof and a side passage raises different questions to a narrow terrace, for the loft and for the extension.

Your planning authority is the London Borough of Redbridge. Its Local Plan 2015 to 2030 was adopted on 15 March 2018, and policy LP30 says householder work should complement the building, particularly in scale, style, form and materials. One caution: part of the Becontree estate was built inside the old Ilford boundary, and an Ilford-sounding address there can sit under Barking and Dagenham instead. Your council tax bill tells you which council you are in.

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What we build for Ilford homeowners

The same team handles the structure, the brickwork and the roof, so a side return and a loft can run as one job. Tell us the street when you first get in touch, because in Ilford that tells us most of what we need to know about the house.

  • House extensionsSide return, rear and wraparound extensions for terraces and semis.
  • Loft conversionsRear dormer, hip-to-gable and rooflight lofts, with the stairs and fire safety included.
  • RoofingRe-roofs, flat roofs, lead work and chimney repairs.
  • BricklayingGarden walls, structural openings and brick matching on Edwardian fronts.
  • Home renovationsWhole house refurbishments run by one contractor.
  • Fire and flood reinstatementInsurance repairs, working with your loss adjuster.

Questions Ilford homeowners ask

Can I build a side return extension on an Ilford terrace without planning permission?

Often, yes, if the house keeps its permitted development rights. Under the national rules a side extension must be single storey, no more than 4 metres high and no wider than half the width of the original house, with eaves no higher than 3 metres within 2 metres of a boundary. If the design goes further than that, or joins up with a rear extension in a way the rules do not cover, it becomes an application to Redbridge.

What does a wraparound extension cost in London?

We do not publish prices, and you get a written, itemised quote after the site visit. For an outside benchmark, Build Team's London rear extension guide, updated 12 October 2026, puts a wraparound at £90,000 to £170,000 or more, including professional fees and 20 percent VAT. A smaller side return on its own usually sits below that, because there is less wall, roof and glazing.

I own a bungalow on the Bungalow Estate. Can I extend it?

You can apply, but you should assume you need planning permission. The estate is a conservation area with an Article 4 direction, and the council's 2018 design guide says permission is generally needed for changes to the outside apart from like-for-like repairs. Read that guide before anything is drawn, because it sets out what the council expects for extensions, porches and roofs on the estate.

Is a loft conversion permitted development on an Ilford house?

On most houses, yes. You can add up to 40 cubic metres on a terrace or 50 on a semi or detached house, nothing on the roof slope facing the road, no higher than the existing ridge, with materials that match and obscure glazing on side windows. It does not apply to flats, or to houses in a conservation area, such as the Bungalow Estate in the Goodmayes area.

Who pays the party wall surveyor on a side return?

Usually you do, as the owner starting the work. If your neighbour agrees to one surveyor acting for both of you, Build Team's October 2026 guide puts that at £800 to £1,500 per neighbour. If they want their own surveyor, you normally pay for both, and the same guide puts that at up to £3,500. Serving notice early and talking to neighbours first keeps that cost down.

My address says Ilford. Is my council definitely Redbridge?

Not always. Ilford postcodes run from IG1 to IG6, but around 2,500 houses of the Becontree estate were built inside the old Ilford boundary, and Barking itself is IG11. Some of those homes now come under Barking and Dagenham, which has its own rules for Becontree. Check your council tax bill. If it says Barking and Dagenham, our Dagenham page is the one that applies.

Can I convert my Ilford house into an HMO?

Not without planning permission. Since 6 December 2019 Redbridge has had a borough-wide Article 4 direction removing the permitted development right to turn a family house into a small HMO, so any such change needs an application. That is a planning question rather than a building one, but we will tell you at the site visit if the layout you want would trigger it.

What about the 1930s semis in Gants Hill and Clayhall?

Where a 1930s semi has a side passage, a wider plot and a hipped roof, there is more room to work with than on an Edwardian terrace. A hip-to-gable loft can often be done under permitted development where those rights exist. If you need a planning application, Redbridge will judge it on LP30, so a design that keeps the pair of semis looking balanced has the better chance.

Get a free quote for your Ilford extension or loft

Send your street name, the type of house and a line about what you want. Bes will tell you whether it looks like permitted development or a Redbridge application before a visit is booked.