Basement cinema rooms in Marylebone.
Belgravia · SW1 · Belgravia apartment, full refurbishmentCompleted work, photograph
A Marylebone cinema is often a snug in the lower ground floor. It is built as a room within a room.
A Marylebone cinema that neighbours never hear.
- Room in a room
- Sound kept from neighbours on both sides
- Listed fabric
- The hierarchy of spaces kept intact
- W1
- Georgian terraces and mews
NU Projects is a design and build company in Fulham SW6, founded in 2010. We handle basement cinema rooms in Marylebone W1, 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.
A Georgian terrace shares walls with houses on both sides. Film sound is low and heavy, and it travels. So the cinema is a box inside the old brick, on an isolated base. Its door seals like a studio’s.
A lower ground floor here can hold a few deep seats. The screen goes on the short wall, the rack in a cupboard nearby. Ventilation runs slow and quiet, through lined ducts.
Many Marylebone houses are listed. Westminster’s Policy 50 says a basement must keep the original hierarchy of spaces. So the cinema stays below, and the grand rooms above stay as built. Listed building consent sits beside planning.
We renovated a listed Marylebone apartment with its fabric kept. In Belgravia, our apartment cinema has a deep corner sofa and copper shelving. One contract covers the shell, the sound and the joinery.
What the council allows in Marylebone.
- Council
- City of Westminster, with over 11,000 listed buildings citywide.
- Listed houses
- A basement must not unbalance a listed building’s original hierarchy of spaces.
- Consent
- Listed building consent is needed for works affecting a listed building’s character.
- Depth
- Policy 50. One storey below the lowest original floor.
- Conservation
- Most of Marylebone is conservation area, so outside changes are watched.
Source: Westminster’s City Plan, January 2026 edition, Policy 50. Read on 16 October 2026. Policies change, so we read them again for your address.
A cinema nearby, and listed work in W1.
Belgravia·Apartment
Belgravia apartment, full refurbishment
Nearby in Belgravia SW1: an apartment cinema with a deep corner sofa.
See the project
Marylebone·Apartment
Marylebone listed apartment
In Marylebone W1: a listed apartment we renovated, its arches and plaster kept.
See the projectCompleted work, photographs
What a basement cinema costs in Marylebone.
£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 snug in an existing lower floor is nearer the conversion figure.
Both figures are project totals. Listed consent, fees and VAT are extra.
What Marylebone owners ask about cinemas.
In Marylebone
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Cinemas nearby
- Basement cinema rooms across London
- Basement cinema rooms in Chelsea
- Basement cinema rooms in Kensington
- Basement cinema rooms in South Kensington
- Basement cinema rooms in Holland Park
- Basement cinema rooms in Notting Hill
- Basement cinema rooms in Knightsbridge
- Basement cinema rooms in Belgravia
- Basement cinema rooms in Mayfair
- Basement cinema rooms in St John’s Wood
- Basement cinema rooms in Hampstead
- Basement cinema rooms in Fulham
- Basement cinema rooms in Weybridge
- Basement cinema rooms in Cobham
- Basement cinema rooms in Oxshott
- Basement cinema rooms in Highgate
- Basement cinema rooms in Primrose Hill
- Basement cinema rooms in Earl’s Court
- Basement cinema rooms in Pimlico
- Basement cinema rooms in Westminster
- Mayfair
- Belgravia
- Hampstead and St John’s Wood
Further reading, from the blog
Will my Marylebone neighbours hear a basement cinema?
Not if it is built as a room within a room.
The box sits on its own base, apart from the party walls.
Can a listed Marylebone house have a cinema below it?
Often, with listed building consent beside planning.
The original hierarchy of spaces above must stay in balance.
How many seats fit a Marylebone lower ground cinema?
Usually a snug of a few deep seats.
We draw the sight lines before fixing the room size.
Where do the projector and rack go in a Marylebone cinema?
In a cooled cupboard close by, reachable for service.
Its fans stay outside the room, so films stay quiet.
Tell us about your home in Marylebone.
Your name and one way to reply are enough. It goes straight to the studio.
- Already have an architect or designer? We build to their design. Working with your designer
- An NDA on request, and your home is never published without your consent. How we work in confidence