Mill Hill was a popular place for country houses in the 18th century, and there are a number of Georgian cottages. Mill Hill School was founded here in the in 1807. A cottage near the Sheepwash pond has its front path made up entirely of ink wells discarded by the school. Much of the village centre has been preserved. The oldest house is 16th century and is now the head master’s house. There are 17th century almshouses near the Angel pond. The area was developed somewhat later than Hampstead because the railways could not initially get past the hills in the Hampstead area. When the Northern Line was pushed through the hills towards Golders Green and then Edgware, residential development in the area began in earnest.

Holders Hill Road, Crescent, Gardens, and Drive contain mansion blocks and new houses with views over the golf course to the north. Manor Hall Avenue has detached houses also with a view of the golf course. The area just north and east of the golf course around a Bittacy Hill and Sanders Lane has seen a considerable redevelopment in recent years, including many new houses on a former ministry of defence site. The Ridgeway leads up to Mill Hill village. There are old and new houses and a village pond. Between Daws Lane and Hammers Lane is a grid of streets named after English poets, containing medium to large houses. The most expensive houses in Mill Hill start above Lawrence Street. Uphill Road is the most sought-after road in the area, with similarly sought-after houses in Sunnyfield, the Reddings, and adjoining streets as far as Highwood Hill. There are also some attractive homes to be found in the strip between Watford Way and the M1 motorway, in the streets off Flower Lane and in Russell Grove and Weymouth Avenue.