Extensions

How much for a second storey extension where there is already a loft conversion?

Anonymous user 28/02/2024 - 3.13 PM

We have just bought a 4 bed detached house and one of the bedrooms is a loft conversion above the garage. We would like to extend over the garage and square off the second floor. This would create usable space of approx 22’ x 7’3 which would be divided into two rooms; one bedroom to the front and a family bathroom at the back. The existing bathroom would be converted to an ensuite to bedroom 1. The garage was built approx 12 years ago though I think it’s only a single skin on the outside. It runs along the side of the house and there is a dining room at the back. I’m expecting that the foundations are in place as hopefully these are required for the loft conversion anyway. I’m also hoping that the floor structure is already in place for a full storey, though it'll need raising as it has been lowered because of the low pitch. Can anyone give me a ballpark figure for this please to take it up to the point of carpeting and decorating. We have a number of projects we want to undertake but if it's the difference between being able to extend this year or next, we'll wait on the others. We haven't applied for planning yet so ideas of the costs of doing so and timescales to get this underway would also be very helpful. We are in the Southampton area. Many thanks. We would also consider adding dormer windows to the pitched roof if there will be a problem with planning.