Builders in Hatch End

Hatch End sits on the north-eastern side of Pinner, around a station on the line to Watford that first opened in the 1840s under the name Pinner. Its streets are mostly twentieth-century houses, with some much older survivors such as Letchford House on Headstone Lane, a Grade II listed building from 1670.

Hatch End has some of the largest family houses in Harrow. At the 2021 Census, 77% of households in Hatch End North and Hatch End South lived in houses: 30% detached, 35% semi-detached and 12% terraced. Median semi-detached prices were about £730,000 to £830,000 in the year to March 2026.

Plots here are often wide enough for a two-storey side extension, and the houses are big enough that a loft conversion can add a bedroom suite rather than a single room. The main constraint is usually the relationship with the house next door, which Harrow judges with its 45-degree code.

Hatch End is covered by Harrow's Residential Design Guide. For first-floor and two-storey side extensions to detached and semi-detached houses, it asks for the first floor to be set back at least 1 metre behind the front wall, with a subordinate pitched roof, unless the building line varies and there is at least a 1-metre gap to the boundary. Single-storey rear extensions beyond the 3 metres (semi) or 4 metres (detached) allowed under permitted development are judged on site circumstances, and any extra depth should be set away from the boundary by twice that amount.

Pinner's Pinnerwood Park Estate conservation area is nearby, and the Brookshill Drive and Grimsdyke Estate conservation area lies to the north-east in Harrow Weald. If your house is outside a conservation area, permitted development may still apply, but planning conditions on some estates remove those rights, so we check the planning history of every house.