House extensions in South London.

Fulham · SW6 · Fulham Victorian houseCase study

Side returns, rear kitchens and wider ground floors for South London homes. Drawn to Lambeth’s rules, built by NU.

More kitchen, less corridor.

3 metres: On a terrace, without planning
Glazed infills: What Lambeth asks of a side return
7 days: A budget estimate, typically

NU Projects is a design and build company in Fulham SW6, founded in 2010. We handle house and kitchen extensions in South London SW and SE. A rear kitchen extension typically runs £160k to £250k. A side return extension typically runs £140k to £220k. Call 020 7731 6841, and a budget estimate typically follows within seven days.

Typical terraces here have a narrow back addition with an unused strip beside. Infilling that alley creates a proper family kitchen, with skylights overhead.

Long gardens give room for a full-width rear extension too. Lambeth supports one if it stays smaller than the house.

Dulwich and Wimbledon houses are often wider, with space for a single deep room. The rules differ by borough, so we check the address first.

Party wall notices go out early, since most of these walls are shared. Then the same team builds what was drawn.

What Lambeth looks for in an extension.

Council: London Borough of Lambeth, under its Local Plan adopted in September 2021.
Policy Q11: Extensions are supported in principle, if they stay subordinate to the house.
Full width: Full-width rear extensions are normally supported. Wraparounds are resisted in conservation areas.
Party walls: A side return or rear extension usually builds on or near the shared wall. Notices go to the neighbours first, under the Party Wall Act.

Source: Lambeth Local Plan 2021, Policy Q11, and the Lambeth Design Guide, Part 4 (2023). Read on 5 October 2026. Policies change, so we read them again for your address.