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Bittacy Hill Park is a small public park in Mill Hill in the London Borough of Barnet.It is a hilly grassed area with mature trees, a children's playground and two free tennis courts.There is access from Bittacy Hill and Brownsea Walk, and by a footpath from between 27 and 29 Bittacy Rise.

Arrandene Open Space and Featherstone Hill is a 25 hectare Site of Metropolitan Importance for Nature Conservation in Mill Hill in the London Borough of Barnet.Arrandene Open Space is a large area of pasture divided by ancient hedgerows, and it is one of London's rare traditionally managed old hay meadows.

Copthall Railway Walk and Copthall Old Common is a 9-hectare (22-acre) Site of Borough Importance for Nature Conservation, Grade II, in Mill Hill in the London Borough of Barnet.Copthall Railway Walk is a section just under a mile long of the Mill Hill East to Edgware line, closed in 1964, of the Edgware, Highgate and London Railway.

Drivers Hill is a ten hectare Site of Borough Importance for Nature Conservation, Grade II, in Mill Hill in the London Borough of Barnet. It is owned by the Jehovah's Witnesses, who built their national headquarters, Watch Tower House, on the site in 1955. The house is a major printing works where 120 million Jehovah's Witnesses periodicals were printed in 2002.

The National Institute for Medical Research (commonly abbreviated to NIMR), was a medical research institute based in Mill Hill, on the outskirts of north London, England. It was funded by the Medical Research Council (MRC); In 2016, the NIMR became part of the new Francis Crick Institute, which was constructed next to St Pancras railway station in the Camden area of central London.

The Mount, Mill Hill International is a coeducational independent day and boarding school located in Mill Hill, North London and forms part of the Mill Hill School Foundation, close to the main Mill Hill School site.Boarding Houses are shared with Mill Hill pupils, and the international pupils have full use of the Senior School’s facilities.

Mill Hill East is a London Underground station in Mill Hill in the London Borough of Barnet, north London. The station is the terminus and only station of a single-track branch of the Northern line from Finchley Central station and is in Travelcard Zone 4. It is the least used station on the Northern line with 1.38 million passengers in 2017.

Inglis Barracks was a military installation in Mill Hill, London, NW7. Also was referred to as Mill Hill Barracks.

Mill Hill Substation Pastures is a fifteen-hectare Site of Metropolitan Importance for Nature Conservation in Mill Hill in the London Borough of Barnet.The reserve consists of pastures grazed by horses around Mill Hill Electricity Substation. These contain patches of unimproved herb-rich pasture on damp clay soil.