Fortis Green is a ward in the extreme northwestern corner of the Borough of Haringey, north London.

Fortis Green ward has a population of about 12,000 and is generally a middle-class area, with a higher proportion of skilled and highly qualified employees than the borough average (40.7% as compared with 26.3% are in social grade AB).

Fortis Green Road and Muswell Hill Broadway are the main shopping thoroughfares and the parish church is dedicated to St James.

Several houses stood near the junction of Fortis Green with Muswell Hill Road where these scattered dwellings included the parish poorhouses and Upton Farm.

Four grand houses were built on the plot and proceeding from west to east these properties were Fairlawn, Cranleigh, Park Hall and Summerlee.

In 1835, the architect Anthony Salvin purchased a field and built two Italianate villas, Springcroft and Colethall (later Uplands) to the east of Summerlee.

[4] In the 1850s St James Church school was constructed on the north side of Fortis Green near to the junction with Tetherdown.

Twenty houses were built in the decade to 1861, most of them on the Haswell Park estate to the south of the road which was acquired in 1852 by the National Freehold Land Society.

By 1900, the builder W. J. Collins had laid out the area south of Fortis Green and west of Muswell Hill Road, previously the site of the large houses Midhurst, Fortismere, and the Firs, which by 1908 had been replaced by six streets (Firs, Birchwood, Fortismere, Leaside, Collingwood and Midhurst) of terraced houses running southward from Fortis Green to Grand Avenue.