Georgian brickwork around Cleaver Square is lime-mortared and less forgiving than later work, so propping and cutting have to be patient and properly sequenced. Whatever stack stays goes onto a beam bearing on new padstones. We appoint the engineer, follow their design exactly, and make good in materials suited to the age of the house.
Supporting the stack in Kennington terraces
Most Kennington houses still carry their original chimney breasts, and in these period terraces the stack is heavy masonry that runs the full height of the building. You cannot simply remove the breast on a lower floor and leave everything above it hanging in mid-air, which is exactly the dangerous shortcut we are sometimes called in to correct. A structural engineer assesses what the stack weighs and how best to carry it before any brick is touched.
Where you keep the stack higher up, we support the retained masonry on steel gallows brackets bolted firmly into the party wall, or on a beam where brackets are unsuitable for the load. In many SE11 townhouses, though, the tidiest answer is to remove the full-height stack entirely and make the roof good afterwards. We recommend whichever solution the engineer's figures justify, never a guess.
Party wall and building control in SE11
In Kennington's tightly packed terraces the chimney stack almost always sits within the party wall shared with the house next door. Removing the breast, or bolting gallows brackets into that shared wall, is notifiable under the Party Wall Act, so you serve notice on your neighbour before work begins and manage any correspondence that follows, keeping the project moving without friction.
The structural support is a Building Regulations matter, and Lambeth Council's building control signs it off against the engineer's design; internal chimney work does not need planning permission. We handle the whole sequence: the calculations, safe propping and removal, capping any redundant flue with ventilation to stop damp forming, and replastering so there is no sign a breast was ever there. In a listed SE11 home we check consent before touching anything visible externally.
When the outside of the stack needs consent
Inside the house this is building control work and nothing to do with planning. The position changes once you propose to take the stack down above the roof, because that alters the external appearance of the building. Much of Kennington around Cleaver Square and the streets towards the Oval sits in a Lambeth conservation area, where the rhythm of chimneys along a Georgian roofline is part of what the designation protects.
In practice that means a stack visible from the street is often expected to stay, even where the flues below have gone. Retaining it is straightforward: the masonry in the roof space is supported on brackets or a beam and the pots are left in place. Where the property is listed, listed building consent is needed for external work and for altering original internal fabric. We establish which category your house falls into at survey rather than assuming, and speak to Lambeth before any external work is priced.
- Building control notification and inspection sign-off
- Flue capping with ventilation to keep the stack dry
- Full chimney stack removal and roof making good
- Loft inspection of the retained stack before work starts
- Gallows bracket support for a retained stack above
Why Kennington Homeowners Choose GS Renovation
Kennington homeowners choose GS Renovation because we treat chimney breast removal as the structural job it is. You get an engineer-designed support solution and Lambeth building control handled end to end, tidy working in an occupied period home, and a fully certified, squared-off result, backed by 30+ years across SE11.
- Building control applications and inspections coordinated for you
- Rated 4.9 from 31 reviews on MyBuilder
- Steel beam support used where gallows brackets are not suitable
- Flue capped with ventilation so the remaining stack stays dry
- Waste cleared as we go, not left piled in the garden
- Cornice, skirting and picture rail matched back in