We design, manage and build loft conversions. Grant looks at your roof, prices the work and runs the job himself.
County Structures builds loft conversions in Brighton and Hove. We’re a small, family-run firm with more than 35 years in the building trade.
Grant comes out to see your loft and gives you a price. Then he runs the job, so the person who quoted is the person you deal with while it’s built.
Most houses round here have room in the roof that nobody uses. Converted, it becomes a bedroom with a shower room, a study or a room for the kids. You keep the garden and stay on the street you chose.
The shape of your roof decides most of it. The street you live on matters too.
Want to know if your loft will work?
Call Grant on 07885 325954 for a free visit.
You won’t be passed between a salesman, a designer and a site manager who never talk to each other. Grant prices your loft and he’s there while it’s built.
We work with the same architects, structural engineers and surveyors on most jobs. We do the building work, and the plumbing and electrics are covered as part of the same job. Fewer outside firms means fewer days lost waiting for someone to turn up.
Measure from the top of a ceiling joist to the underside of the ridge. As a rough rule you want 2.2 metres or more. With less, a dormer or mansard can win back the height.
Newer houses often have trussed rafters, the W-shaped timbers that fill the loft. These can be replaced with steel, but it adds cost. The stairs are the other big question. They have to land somewhere sensible without spoiling a bedroom below.
Often not. Many loft conversions go ahead under permitted development, within limits on size, as long as nothing is built on a roof slope facing the road.
Conservation areas are different. Brighton and Hove has 34 of them, and a roof extension in any of them needs planning permission. Some also have Article 4 directions that take away further rights. Every loft conversion needs building regulations approval, and most terraced jobs need party wall notices. We sort all of this out with the architect before any work starts.
We only give a firm price once we’ve seen the house. For a rough idea in 2026, a rooflight conversion starts at around £25,000 and most rear dormers come in between £40,000 and £60,000. Mansards go higher.
Our loft conversion cost guide breaks it down by type, along with the fees people forget.
For most families it costs less than moving up a bedroom, once you add stamp duty, agents and removals. An extra bedroom usually adds value as well.
We won’t promise you a figure. A local estate agent can tell you what the extra room would do to your house price before you commit.
Free visit and a no-obligation quote.
Call the office on 01273 950800 or Grant on 07885 325954.
Our office is at Stanford Gate on South Road, Brighton BN1 6SB. We convert lofts in Preston Park, Fiveways, Hanover, Kemptown, Seven Dials, Withdean and Patcham, and further out in Portslade, Rottingdean, Saltdean, Shoreham and Lewes. Call Grant on 07885 325954 or the office on 01273 950800.
Design & Build · House Extensions · Basement Conversions · Steel Beams & RSJs · Refurbishment & Renovation
Call Grant on 07885 325954 or the office on 01273 950800. We will come out, look at the job and give you a free, no-obligation quote.
I can confirm that Grant has worked for me on two projects. The first project was to build two semi-detached houses in Hove. The second project was to convert an 1850s listed building in Brighton into four top-end apartments.
Grant is a very practical builder and gets on well with people, particularly neighbours, helping projects run smoothly. He works to a high standard and, should you decide to have him work for you, will leave you with a feeling that you would willingly use him again.
Grant and his team carried out our flat conversion (converting the top two floors of our Victorian house to two self contained flats) last year.
For our works they started on the agreed date and finished within days of the predicted finish date. For us the work was all to a very good standard and we have been very pleased with the finished job.
The team were friendly and approachable, happy to change or add little things as the conversion evolved. Grant and John were always at the end of the phone if needed. I would not hesitate to recommend them and if I need further construction works carried out would look to them first.
Tell us a little about your project and we will call you back. If you have drawings or photos, mention it and we can arrange a site visit.
County Structures Ltd
Stanford Gate
2nd Floor, South Road
Brighton
BN1 6SB
