Cost of dormer loft conversions in S25
Dormer loft conversions are ideal if you want to add lots of extra space to your home. Adding a box-like structure or structures to the roof, you essentially extend the roofline to add significant square footage to your loft space. This makes dormer loft conversions one of the most popular loft conversion types, as they're ideal for adding a new main bedroom with en-suite or even a self-contained living space.
In S25, prices for dormer loft conversions range from £41200 (R Watson Builders based in S43) to £48000 (C S Roofing & Building based in S8), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.
The best way to get an accurate price is to compare quotes from extension builders in S25. Post your job on HaMuch now and we'll put you in touch with available extension builders.
Estimates for common extension builder jobs in S25;
| Job | Estimate |
| Underpinning a house | £17583 |
| Build a two storey extension | £88124 |
| Build a timber frame extension | £26083 |
| Install a swimming pool | £81083 |
| Cost to build a single storey extension | £51651 |
| Cost to build a side return extension | £38429 |
| Install an RSJ | £2283 |
| Build an outbuilding | £10083 |
| Build a mansard loft conversion | £52083 |
| Cost of a loft conversion | £34524 |
| Build a kitchen extension | £42083 |
| Build a hip to gable loft conversion | £42083 |
| Build a granny annexe | £87083 |
| Build a garden office | £10083 |
| Convert a garage | £16083 |
| Build a new garage | £18583 |
| Build a flat roof extension | £22083 |
| Build a dormer loft conversion | £42083 |
| Lay a concrete foundation | £6333 |
| Convert a bungalow loft | £29083 |
| Basement conversion cost | £38429 |