Having that extra bit of space has never been more valuable in north London. Whether it’s being able to keep teenage children or elderly relatives close by, or having a private place to work from home, an annex is the ideal space solution.

Crown Road, Muswell Hill, N10, £425,000

This spacious two bedroom apartment is on the ground floor of a period conversion. There is a large detached annex study / workspace set in the 60ft private garden. There is a reception room at the front of the house and the kitchen opens out on to the garden at the rear. The property is close to all the amenities of Muswell Hill and the open spaces of Alexandra Park.

Foxtons

Pilgrims Lane, Hampstead, NW3, £3,950,000

A large 4 bedroom family home with a self contained annex located midway between Hampstead Heath and the High Street. The annex has a bedroom, shower room, TV room and kitchen, and a private entrance, making it an ideal granny flat, nanny suite or teenager unit. There is a terrace, patio and large garden at the rear of the property. The house also has off street parking

Benham & Reeves

Aylmer Road, Hampstead Garden Suburb, N2 , £2,449,000

The detached six bed property was completely refurbished in 2012, including the fully insulated annex. There are five reception rooms, three bathrooms, and a Novellini steam room in the loft conversion. Set back from the road behind cast iron gates, the property also features a 130ft landscaped garden, which is overlooked by the first floor roof terrace,

Martyn Gerrard