Structural underpinning to South Hampstead properties — for new basements, lowered floors, added loads or historic movement, engineer-designed and carried out with full party wall protection.
Speak to the studio directly: 020 8054 8756
Underpinning strengthens or extends a building’s foundations, and on South Hampstead’s period villas it is needed for several reasons: to form or lower a basement, to carry the extra load of a new floor or large opening, or to stabilise a structure that has moved over its long life. Whatever the cause, it is structural work that must be engineer-led.
We carry out sequential, mass-concrete underpinning — the foundation is extended in small bays, one at a time, so the structure is never left unsupported. Because South Hampstead is largely semi-detached and terraced, shared walls mean the Party Wall etc. Act 1996 almost always applies and neighbours are formally protected.
Every scheme is designed and detailed by a structural engineer, governed by a written method statement, monitored as it proceeds and signed off by Building Control. It sits in one contract with the wider works, so the underpinning, structure and finishes never fall between trades, with honest budgets in pounds sterling.
Underpinning is structural work — the reason for it, the sequence and the engineering all matter.
Underpinning supports new basements, lowered floors, added loads, or stabilises a structure that has moved.
Every scheme is designed and detailed by a structural engineer with a written method statement.
Foundations are extended in small, sequenced bays so the building is never undermined.
Shared walls mean neighbours are notified, surveyed and protected under the Party Wall etc. Act 1996.
From diagnosis and design to a stable, signed-off structure — under one team.
Establishing why underpinning is needed — basement, loads or movement — before designing.
Engineer-designed underpinning sized to the ground conditions and loads.
A written, sequenced method statement governing how each bay is formed.
Notices, schedules of condition and awards with adjoining owners.
Controlled bay excavation, reinforcement and mass-concrete casting.
Movement monitoring of the building and neighbours during the works.
Addressing drainage and tree-related causes where movement is involved.
Building Control inspection and structural sign-off on completion.
We carry out engineer-designed underpinning across South Hampstead’s period villas in NW6, with full protection for neighbouring owners.
South Hampstead sits within the London Borough of Camden — see our South Hampstead area page and North London refurbishment overview.
Book a no-obligation consultation at our North London studio on Finchley Road, in Hampstead, or at your property. We will give you an honest read on approvals, programme and budget band — in pounds sterling — before you commit.
Site visit · approvals read · outline budget band (GBP) · programme indication. No obligation.
Send Project DetailsThe same NW3 design-build team covers the neighbouring areas: