Hillside terraces and a borough full of semis
Stockport has a higher share of owner occupiers than anywhere else in Greater Manchester, about 71% at the 2021 Census. Semi-detached houses make up roughly two in five homes, more than any other type, and that is where most loft work in the borough happens.
The houses change a lot from one side of the borough to the other. Around Hillgate and the old town, long streets run downhill lined with three-storey terraces, their rooflines stepping with the slope. Reddish has red-brick Victorian terraces of up to three storeys around Houldsworth Square. Heaton Moor grew as a railway suburb after Heaton Chapel station opened in 1852, first with large villas, then with semis, which were the norm there by 1922. Bramhall has Edwardian houses, 1930s to 1950s homes and the estates of the 1960s and early 1970s, Dairyground among them.
Out east the material changes. Older Marple cottages are built in local stone under graduated stone slate roofs, the big slates at the eaves getting smaller towards the ridge. Nobody wants to break one of those by accident.
Article 4 is the rule here, not the exception
Stockport has 37 conservation areas, and most of them carry an Article 4 direction. The council lists 24 with an Article 4(2) direction, which covers the elevations of houses facing a road, waterway or public open space. Five more have an Article 4(1) direction, which reaches every external part of the house, back slope included. Where a direction applies, the council says you need planning permission to alter roofs and chimneys as well as windows and doors, even if you only change the material.
In plain terms, a rooflight on the front slope that would be fine on most English streets can need an application in Heaton Moor, Cale Green or Marple Bridge. Inside any conservation area, every dormer and every hip to gable needs permission too, front or rear, Article 4 or not. Look your street up on the council's conservation map before anyone draws a thing.
When an application does go in, the council judges it against its Extensions and Alterations to Dwellings guidance, adopted in 2011. It is blunt. Visible dormers should be small and sit below the ridge, with pitched roofs in materials that match. Flat roofs on them are "generally unacceptable", and uPVC or boarded cheeks are unlikely to pass. It also says a hip to gable is unlikely to get permission on a street where hipped roofs predominate.
Picking a conversion for your house
How each type suits Stockport's houses, with a fuller guide for each.
Hip to gable. The obvious route for a hipped semi, and with so many semis in the borough local firms build plenty. Outside a conservation area it is usually permitted development. Inside one, expect the council's line on streets of hipped roofs to be quoted back at you.
Read our full guide: Hip-to-Gable Loft Conversions: What It Involves and Which Houses It Suits →
Rear dormer. Fits the Reddish terraces and most of the borough's semis. On streets outside conservation areas it normally goes ahead as permitted development. In Heaton Moor or any of the other 36, it needs an application.
Rooflights only. The gentlest option, and often the only one a planner will like on a villa in Heaton Moor or a stone cottage in Marple. Remember the Article 4 point above if the rooflight faces the street.
L-shaped dormer. Worth asking about on a Victorian terrace with a back outrigger. The second leg over the outrigger usually takes the bathroom.
Extra bedroom. Why most Stockport families do it. On a three-storey Hillgate terrace, though, a loft makes a fourth floor and the fire rules get stricter, so ask building control what the stair needs before you commit.
En-suite. In a big Heaton Moor villa or semi there is often room for a proper bathroom under the roof. Plan the soil pipe route first, because it decides where the shower can go.
Home office. If you work from home part of the week, the top of the house is the quietest room you have. Run a data cable up while the walls are open.
Read our full guide: Loft Home-Office Conversion: What Works Well Up There and What to Specify →
Mansard. Rare here and always a planning application. On the stepped rooflines of the old town or a conservation area street, I wouldn't count on approval.
Planning. The Stockport question is less "is it permitted development" and more "is my street in a conservation area, and does it have an Article 4". Answer that first.
Cost. We don't put a figure on it. A stone slate roof in Marple and a 1960s Bramhall estate house are different jobs, and three site visits will tell you more than any number on a web page.
Inspections and sign-off
Building regulations are handled by Stockport Council's own building control team, unless your builder uses a private approved inspector. Give at least two days' notice before work starts. After you apply you get a list of the stages they want to see, which for a loft includes the new floor joists and steels, and the insulation before it's boarded over. Next-day visits can be booked online or by email. The completion sign-off at the end is the paper a buyer's solicitor will ask for.
Where these facts come from
- Stockport Council: about conservation areas
- Stockport Council: Article 4 directions
- Heaton Moor Conservation Area Character Appraisal
- Stockport Council: booking a building regulations inspection
- Stockport Council: contact planning and building control
- Stockport Town Centre Residential Design Guide appendix (Hillgate)
- GMCA Census 2021 briefing: housing tenure
- Stockport Council: Reddish South character study
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Questions people in Stockport ask
I'm in Heaton Moor. Can I put rooflights in the front slope without asking?
Probably not. Heaton Moor is a conservation area and has had an Article 4(2) direction since 2008, aimed at householder changes to the parts of houses that face the street, roofs included. A rear dormer there needs permission too, because it is in a conservation area. Rooflights on the back slope are the likeliest thing to go through without an application, but check with the council.
Will Stockport Council approve a flat-roofed dormer on the front of my house?
Unlikely. The council's 2011 extensions guidance calls flat roofs on front dormers generally unacceptable and wants visible dormers kept small and pitched, clad to match the roof. On the back of a house outside a conservation area, a flat-roofed dormer within permitted development limits needs no planning permission, only building regulations approval.
My cottage in Marple has a stone slate roof. Does that change anything?
It changes the job more than the paperwork. Graduated stone slates have to come off carefully and go back in their sizes, so pick a builder who has done it before. If you're in Marple Bridge, Mellor/Moorend, Compstall or another conservation area, any dormer needs planning permission and the planners will expect matching stone slate.
I bought a new house at Woodford. Can I convert the loft?
Often, but check the permission for your phase on the council's planning search first. Estate consents sometimes take away permitted development rights, and newer houses usually have trussed roofs, which need a steel frame before you can use the space.