Luxury house extensions in Hadley Wood

Enfield, for most addresses. Hadley Wood sits within the London Borough of Enfield even though its EN4 postcode is shared with Barnet areas. The boundary runs close by, so we confirm your specific address at the outset; it determines which council's policies your application is judged against.

Plan on £3,500 to £5,500 per square metre, roughly 25 to 30 percent above the North London norm, reflecting the size and specification of these houses. A glazed single-storey rear typically runs £55,000 to £115,000 and double-storey schemes £95,000 to £210,000, excluding VAT and fees. You receive a fixed, itemised quote after a free visit.

Often, yes. Detached houses enjoy 4m of rear extension under permitted development, stretching to 8m with larger-home prior approval, and EN4's recent record shows rear extensions clearing repeatedly. We would still obtain a Lawful Development Certificate so the consent is black and white.

It sits immediately adjacent on the Barnet side of the boundary, so it depends entirely on your address. If you fall within or beside it, design expectations tighten, materials and detailing in particular. We check the conservation maps for your exact plot before design begins.

On these plots, frequently yes. Basements add leisure or guest space without changing how the house presents to the street, which planners here care about. They are full-application projects with serious engineering behind them, and party wall procedures where excavation nears a boundary.

Allow a few weeks for survey and design, around eight weeks for a council decision once submitted, and an on-site period from three or four months for a single-storey scheme to seven for a double-storey rework. We give honest programme dates with the quote.