We carry out house extensions, loft conversions, refurbishments and new builds in Harrow for homeowners and landlords. This page explains how building work works in the borough, so you know what to check before you commit.
Planning in Harrow
Harrow Council is the local planning authority. The borough has a number of conservation areas, including parts of Harrow on the Hill, where extra rules apply and permitted development is more limited. Harrow also has Article 4 directions in places that take away some rights, so check the exact address with the council.
Homes and typical work
Harrow has a lot of 1930s semi-detached houses, many built when the Metropolitan line brought new suburbs to the area, plus Victorian houses nearer the older centres and a growing number of flats. The most common requests are rear and side extensions on semi-detached houses, loft conversions and converting the garage.
Points particular to Harrow
- Side extensions on a semi-detached house sit close to the neighbour, so a party wall notice is often needed.
- A double-storey side extension usually needs planning permission and a design that respects the street.
- Houses on the hill can have sloping gardens and levels that affect foundations and drainage.
Frequently asked questions
Is Harrow a conservation area?
Parts of it are. The borough has several conservation areas, so check the property address on Harrow Council’s website before you plan anything.
Do you cover Harrow Weald, Stanmore and Kenton?
We work across the London Borough of Harrow, so yes. Tell us the postcode when you get in touch.
Planning building work in Harrow? Tell us about the property, and we will say what looks likely to need permission and arrange a free site visit.