A town that climbed the valley sides
Bradford's 2020 housing design guide puts it simply. Keighley grew on the flat floor of the Aire and then spread out onto the steep slopes around it. Plenty of homes up there are built into the slope, and a garage on a plot like that rarely lines up neatly with the hall floor.
That changes the job. The floor can be raised to meet the house, and the Planning Portal says that where the house floor stands well above ground a suspended timber floor, with a void of at least 150mm under it, may make more sense than piling up concrete. A garage dug into the bank has the opposite problem. Its back wall holds up earth, so check it for damp before anyone plasters it.
The infill under the old door also needs a footing. A garage slab is usually shallow, so dig down beside it to see what's there. Any blockwork below ground has to resist frost and the sulphates in the soil. On a slope, that buried section can be deeper at one end than the other. Get an engineer or Bradford's building control officers to look before the price is fixed.
Interwar avenues, 1970s closes and 1990s stone
Keighley's terraces mostly came before the car, so its garages belong to later housing, and the council's conservation assessments say where that went. East of the old hamlet at Braithwaite lies the Braithwaite Estate, interwar social housing set along broad suburban avenues, and the 1970s housing at Ryan Grove filled most of the fields to the north. Round Low Utley there are late 20th-century developments towards the railway and, south of Birchwood Road, a small interwar estate of brick semis.
Up the Worth Valley, Haworth's 2003 assessment picks out Weavers Hill, a 1990s suburban mix of terraced, semi-detached and detached houses just outside the conservation area. The Heathcliff Estate, also from the 1990s, was built in local stone with natural stone roofs. Where the house is stone, the panel that replaces the garage door should be stone too. Painted blockwork looks wrong from day one.
Newer estates are where a planning condition removing permitted development is most likely to turn up, which is why the Portal says to check with the council first. Get a copy of the original decision notice from Bradford Council and read the conditions.
The conversion types, Keighley style
Integral. Expect these on later 20th-century houses, not the stone terraces. Check the floor level against the hall and the fire separation from the rest of the house before you settle on a layout.
Single. A single garage set into a slope often has a damp back wall and a stepped base. Both are fixable, and both belong in the quote rather than turning up as extras later.
Read our full guide: Single Garage Conversion: What Is Involved and What to Budget For →
Utility or playroom. Popular on semis where the kitchen is small. A new utility room needs extract ventilation, the same as a new kitchen or bathroom, so allow for a duct through the wall.
Bedroom. Plan the window properly. For purge ventilation the Planning Portal wants an opening of at least a twentieth of the floor area if the sash swings past 30 degrees, plus trickle vents of 8,000mm² in a house with more than one floor. Near the rivers at Stockbridge, check the flood map before anyone sleeps at ground level.
Home office. It still counts as a habitable room, so the insulation and ventilation rules apply. Ask about heating as well as insulation.
Detached. Near the old hamlets it may be a stone garage or part of a barn. A hobby room or gym that goes with the house usually needs no planning permission. Making it a separate home is different, and the Planning Portal warns permission may be needed whatever the works.
Double. Mostly on larger detached houses. Converting one bay and keeping the other keeps a car off a steep street.
Gym or studio. Have the slab checked before heavy kit goes on it. Line any wall shared with next door against sound.
Planning and building regs. Two separate checks. A planning application is usually not needed for internal work, though a condition or a listing can change that. Building regulations approval nearly always is.
Cost and value. No figures on this page. A deep footing on a slope, matching stone and a suspended floor are what move Keighley quotes, so get each firm to say which it has included.
Stone garages, cart arches and the conservation areas
Some Keighley garages are old buildings in their own right. Braithwaite's 2005 assessment describes a big stone garage with a stone roof right on the road, and criticises the large metal roller door fitted to it. It also notes barns whose arched cart entrance now serves as a garage. Barns there have few openings beyond that segmental arch and some vents, so keep the arch and set the new window and door inside it. Don't fill it in flush.
There are 18 conservation areas in the Keighley list, but no Article 4 direction anywhere in the town or the Worth Valley. Even so, the Planning Portal advises checking with the council before converting a garage in a conservation area. Low Utley's assessment explains why. It says garages, conservatories and fencing should be judged for their combined effect as well as one at a time, because small additions add up. Both assessments want stone boundary walls kept, and they dislike plastic replacement windows and doors. Fit a timber window in the old opening and leave the wall and gateposts alone.
Where these facts come from
- Bradford Council: Homes and Neighbourhoods design guide SPD (2020)
- Bradford Council: Braithwaite conservation area assessment (2005)
- Bradford Council: Low Utley conservation area assessment (2005)
- Bradford Council: Haworth conservation area assessment (2003)
- Bradford Council: Article 4 directions
- Environment Agency: River Aire at Stockbridge and Keighley flood warning area
- Planning Portal: garage conversion planning permission
- Planning Portal: garage conversion, walls below ground level
- Planning Portal: garage conversion, in-fill garage door
- Planning Portal: garage conversion, flooring
- Planning Portal: garage conversion, ventilation
- Planning Portal: converting a garage into a workshop
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Questions people in Keighley ask
Our garage sits lower than the house because of the slope. Is that a problem?
Not a serious one. The floor can be built up to meet the hall, or a suspended timber floor used with at least a 150mm void beneath it. The back wall needs a damp check if it holds up the bank, and any new footing has to use frost and sulphate resistant materials below ground.
We bought on Weavers Hill in Haworth. Can we convert without an application?
Haworth's 2003 assessment placed Weavers Hill outside the conservation area, though check the current boundary. Then ask Bradford Council for the original decision notice and look for a condition about the garage or permitted development. Newer developments are where those turn up.
Our outbuilding near Braithwaite has an arched cart entrance. Can we glaze it?
Glazing inside the arch usually looks better than blocking it, and the council's Braithwaite assessment treats that arched entrance as part of a barn's character. If the building is listed you will need listed building consent first.
We live in one of the post-war houses near Utley. Do the conservation rules apply?
Only inside the Low Utley boundary. The assessment drew its boundary to leave out most of the 20th-century housing around the old hamlet. Check the council's conservation area map for your street.