GS Renovation carries out structural alterations across Belgravia, from new openings in Regency reception rooms to replacement joists and supported openings in the mews properties off the main squares. Over 30 years working with SW1's Georgian and listed housing means we understand how these old buildings are put together before we start cutting.
Structural work in Belgravia's period homes
Belgravia's townhouses have stood for two centuries, and their original timber floors, lath walls and lime-mortared masonry behave differently from modern construction. Whether you need a wider opening between rooms, replacement joists where floors have sagged or dropped, a supported opening for a new doorway, or underpinning where movement has appeared, we begin with a structural engineer's assessment tailored to the building's age and condition.
New openings are formed with a correctly sized steel beam or lintel bearing onto padstones, installed over temporary propping and cut through in controlled stages. Replacement joists are matched to the span, and underpinning is designed in sequenced bays so the house is never undermined. In these tall SW1 homes we always trace the load path down through the storeys.
Consents and controls in Westminster SW1
Internal structural alterations fall under the Building Regulations, so Westminster City Council's building control, or an approved inspector, reviews the engineer's design and inspects beams, bearings and any underpinning before certifying the work. This is separate from planning: only exterior changes to Belgravia's listed frontages or work within its conservation areas would require listed-building consent or planning permission from the council.
Many Belgravia terraces and mews share a party wall with the neighbouring property, and much structural work, forming a beam pocket, cutting a new opening near the boundary, or underpinning along a shared wall, is notifiable under the Party Wall Act. We serve the required notices before work begins, then run the engineer, the propping, the building control inspections and the making-good as a single accountable job.
- New door and window openings in solid walls
- Structural surveys and engineer coordination
- Temporary works, propping and needling
- Building control applications and certification
- Steel beam and RSJ installation
Why Belgravia Homeowners Choose GS Renovation
Belgravia homeowners trust GS Renovation because structural alterations to a Georgian or listed townhouse leave no room for shortcuts. One accountable team delivers the engineer's design, party wall notices, Westminster building control sign-off, safe propping and sequenced work, and clean reinstatement, all backed by 30+ years of structural experience in SW1's period homes.
- Free, no-obligation quotations
- Over 30 years of experience
- Dedicated project management
- Fully insured and guaranteed work
- Building control and planning support
- Clean, tidy and reliable tradespeople