Yes, for most homes in Wood Green, and the bigger obstacles are the ground and the type of home, more than any heritage rules. Listed buildings are few. Conservation areas barely register. The neighbours file plans constantly. The clay underneath is the party that asks the hard questions.
There are 34 listed buildings in and around Wood Green: none at grade I, one at grade II* and 33 at grade II. Listing covers the inside and outside of a building, and almost any change that affects its character needs listed building consent on top of ordinary planning permission. With 34 of them spread across a district this size, the odds of buying one by accident are low, and the owner of one will have known from the day the solicitor's search came back.
One conservation area falls within the area's boundaries. Inside one, the council can ask for consent on work that would otherwise go ahead without it, and demolition, front-facing changes and trees all get closer attention. For a house outside it, which is most of them, the conservation rules simply do not come up.
Haringey Council received 1,038 planning applications across Wood Green between April 2024 and June 2026, 453 of them in the last twelve months. That is a district altering its homes as a matter of routine. In N22 the skip lorry reversing at eight in the morning is part of the furniture.
The ground is the part that needs real attention. The British Geological Survey rates the shrink-swell hazard in Wood Green at class 3, and 100% of the area reaches it. That is clay which swells when wet and shrinks when dry, and it moves foundations with it. For an extension, it usually means deeper foundations than a builder might quote off the cuff, and a structural engineer's view on the soil and any nearby trees before the plans are finalised. A structural engineer's letter on the existing house is the one piece of paper worth getting early, because it tells you whether the building has already moved and how much the new part will need to cope with.
Two listed buildings in the area are on Historic England's Heritage at Risk register. Those are buildings in poor repair, and their owners can expect both closer scrutiny and the possibility of grant support for the work. For the buyer of an ordinary terrace a few streets away, they change nothing.
In practice, the question in Wood Green turns on the type of home. Houses outside the conservation area generally carry permitted development rights, which allow certain rear extensions and loft conversions without a full planning application, though the details depend on the house and its history. Flats do not carry the same rights, and with flats making up the larger part of the stock, plenty of owners here find their ambitions run into the freeholder and a full application long before they meet a heritage officer. The roads laid out by 1869, Clarence Road, Truro Road and Nightingale Road among them, were built before anyone had heard of a loft conversion, and their owners are making up for lost time.
Wood Green gives you a middling amount of freedom: little heritage red tape for most houses, real limits for flats, and clay that makes every extension a job for an engineer as well as a builder.