Two-Storey Extensions
Two storeys cost meaningfully less than twice one storey — the foundations, roof and scaffold are shared — and they solve two floors of a house at once.
A two-storey rear or side extension typically pairs the kitchen-diner below with a bedroom or family bathroom above. Planning permission is normally required, so these schemes start with drawings — prepared with our partner architects — and a design conversation about how the addition should read against the original house.
Structurally they are proper builds: real foundations, two lifts of masonry, floor structure, and a roof that has to marry into the existing. That is the work we came from, and it shows in the junctions.
More house extensions routes
Ready to talk about a two-storey?
A visit costs nothing and commits you to nothing. We'll look at what your house can take, give you straight answers, and tell you plainly if the numbers don't stack up.
- You tell us the ideaThree quick questions — no essay required.
- We call within a working dayA real conversation about what your house can take.
- A visit, then an itemised quoteEvery line written down, and only if you want one.
- On site
- Mon–Fri, 8am–5pm
- Office calls
- until 6pm weekdays
- We reply
- within one working day

