Structural Alterations in Marylebone, W1
Opening up the ground floor, removing load-bearing walls and forming new openings in Marylebone houses, with our own structural engineers and building control approval.
Covered under one contract
- Architectural and structural design
- Planning or lawful development certificate
- Foundations, walls, roof and steels
- Glazing, rooflights and doors
- Kitchen designed and fitted
- Building control and party wall handled
Structural Alterations in Marylebone.
Most of the houses in Marylebone were planned as a series of small rooms. Opening them up, whether that is knocking two reception rooms together, taking out the wall between the kitchen and dining room, or forming a wide opening onto the garden, is structural work, and it needs to be designed rather than improvised.
Our engineers design the steel beams, padstones and any temporary works, and our team installs them. The beam is usually hidden within the ceiling so the finished room shows no trace of the wall that was there. Building control inspects the work, and where the wall is shared with a neighbour we serve the party wall notices.
Structural alterations are often the first stage of a wider refurbishment, and we plan them as such, so the services, floor levels and finishes that follow are all designed together.
- Area
- Marylebone, W1 · NW1
- Council
- City of Westminster
- Housing
- Georgian and early Victorian terraces, mews houses, mansion blocks and converted flats
- Transport
- Baker Street, Marylebone, Bond Street
- Rear or side return, on site
- 10 to 16 weeks
- Design and approvals
- 8 to 14 weeks before start
- Glazing lead time
- 6 to 10 weeks, ordered early
- Consent
- Permitted development or householder application
- Party wall
- Notices served by us
Marylebone: the houses and the planning rules.
Marylebone is where Space Cucina started, as a kitchen company on Seymour Place. The district is a grid of Georgian and early Victorian streets laid out by the Portman and Howard de Walden estates: flat-fronted brick terraces, stucco around the squares, mews houses behind, and the great mansion blocks of Marylebone Road and Baker Street.
Most of the housing is now flats, from mansion-block apartments to lateral conversions across two houses, which makes refurbishment here as much about approvals and logistics as about design: licences to alter, estate consent, parking suspensions and lift access all shape the programme. We have refurbished bathrooms on Marylebone Road and fitted kitchens for clients across the district.
The Portman Estate, Harley Street and Dorset Square conservation areas cover almost all of it.
Westminster City Council
Applications go to Westminster. Almost the whole district is within conservation areas, and many terraces are Grade II listed, so internal changes to listed houses need listed building consent.
Estate consent
On the Portman and Howard de Walden estates, the freeholder's own approval is needed in addition to planning, with their own design guidance for windows, roofs and rear elevations.
Mansion flats
Block rules govern working hours, deliveries and noise. We plan the programme around them and coordinate with the managing agent.
Approvals for structural alterations in Marylebone.
Structural work needs building regulations approval and an engineer's calculations; where the wall is shared with a neighbour, party wall notices are required, and listed buildings need listed building consent for internal alterations.
Applications go to Westminster. Almost the whole district is within conservation areas, and many terraces are Grade II listed, so internal changes to listed houses need listed building consent.
What structural alterations in Marylebone includes.
- Architectural and structural design
- Planning or lawful development certificate
- Foundations, walls, roof and steels
- Glazing, rooflights and doors
- Kitchen designed and fitted
- Building control and party wall handled
From site visit to handover.
- 01
Site visit & consultation
We visit, listen and measure. Brief, budget and constraints understood before any advice is given.
- 02
Design & itemised quote
Our architects and engineers draw the scheme, and from that we provide a transparent, itemised quotation for your approval.
- 03
Planning & approvals
Planning applications, building control and party wall matters handled for you.
- 04
Build, managed weekly
Our own trades, sequenced by a site manager. Progress reported every week.
- 05
Handover & aftercare
Joint snagging walk-through, documentation, and a guarantee on our workmanship.
Structural Alterations in Marylebone: your questions.
Can you remove a load-bearing wall in a Marylebone house?
Yes. Our structural engineer designs the steel beam and padstones, building control inspects the work, and if the wall is a party wall we serve the notices. The beam can usually be concealed within the ceiling depth.
Do structural alterations need planning permission?
Internal structural work does not need planning permission, but it always needs building regulations approval. Listed buildings need listed building consent for internal alterations.
Which parts of Marylebone do you cover?
All of Marylebone and W1 · NW1, including Seymour Place, Marylebone High Street, Montagu Square, Dorset Square, Harley Street, Baker Street, and the neighbouring districts. We are based in London and our teams work across central, north, north-west, west and south-west London.
Our work near Marylebone.
Other services in Marylebone.
House Refurbishment in Marylebone
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Flat Refurbishment in Marylebone
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House Extensions in Marylebone
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Loft Conversions in Marylebone
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Basement Conversions in Marylebone
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Kitchen Renovation in Marylebone
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Bathroom Renovation in Marylebone
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Bespoke Joinery & Fitted Furniture in Marylebone
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Architectural & Interior Design in Marylebone
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Planning Permission & Building Regulations in Marylebone
Read moreStructural Alterations across London.
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We will visit, listen and explain what is possible for your property and how it would be approved. No pressure, no sales pitch.