Basement media room with dark joinery, a long fire and warm cove lighting.

Basement cinema rooms in South London.

Fulham · SW6 · Fulham basementsCase study

A dark, quiet screening room below a South London house. Built as a room within a room.

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A South London cinema, below the garden.

Room in a room
An inner shell on isolators
Rack room
Amplifiers kept apart from the seats
Fulham
A basement media room we built

NU Projects is a design and build company in Fulham SW6, founded in 2010. We handle basement cinema rooms in South London SW and SE, under one contract. A new basement dig typically runs £500k to £900k. Converting an existing basement runs £180k to £300k. Call 020 7731 6841, and a budget estimate typically follows within seven days.

Basements make natural cinemas, with no daylight to block out. The hard part is keeping sound in.

We build an inner shell that floats on isolators, apart from the house. The neighbour’s side of the party wall stays quiet.

Projectors and amplifiers run warm. They sit in a ventilated rack room, away from the seats.

We built a basement media room under a Fulham terrace, just across the river. Its joinery and lighting were drawn with the shell.

What applies to a cinema below ground.

Council
London Borough of Lambeth, under its Local Plan adopted in September 2021.
Policy Q27
One storey below ground, and none beneath an existing basement.
The garden
Beyond the footprint, rear only, with 70 per cent of the garden kept.
Sound
The inner shell floats on isolators, apart from the house structure.
Rack room
Amplifiers sit in a ventilated cupboard, apart from the seats.

Source: Lambeth Local Plan 2021, Policy Q27 Basement development. Read on 7 October 2026. Policies change, so we read them again for your address.

What a basement cinema costs in South London.

£180k to £300kConverting an existing basement. A project total, from our 2026 cost guide.

£500k to £900k+Digging a new basement. A project total, from our 2026 cost guide.

A South London cinema is priced from the basement it sits in.

Fees, party wall costs, contingency and VAT sit outside them.

Open the calculatorThe 2026 cost guideCan I build it here?

How is sound kept inside a basement cinema?

The room is a shell on isolators, apart from the structure.

Doors and ducts are sealed to match.

Where does the equipment go in a South London basement cinema?

In a ventilated rack room beside the cinema.

Only the screen and speakers sit in the room itself.

Can a cinema sit under a South London garden?

Partly. Lambeth keeps most of the rear garden undug.

The cinema usually sits under the house itself.

What does a basement cinema cost in South London?

A cellar conversion is £180k to £300k as a project total.

A new dig is £500k to £900k and more.

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