Kerbs, drives and the A534
Turn the garage into a room and the car usually ends up on the front. That part has rules of its own.
Start with the surface. Government guidance says paving more than 5 square metres of a front garden is permitted development only if the surface lets water through, or drains to a lawn or border. Lay plain concrete that runs off onto the pavement and you need permission.
Then the kerb. If you don't already have a dropped kerb, Cheshire East's highways team has to approve one, and it can refuse or ask for changes. On an A, B or C road, the A534 Nantwich Road among them, you also need planning permission for the crossing. The work is done by your own contractor, who needs the council's licence to dig in the road. Driving over a full-height kerb as a habit is an offence under the Highways Act 1980.
Where planning comes into a Crewe conversion
Mostly it doesn't. Permission is not usually needed, according to the Planning Portal, if the work is internal and the building isn't made bigger.
The exception is a house whose original consent took the rights away. The Portal flags new housing developments as the place to check, and Crewe has plenty, with Basford, Leighton and the South Cheshire Growth Village all allocated for hundreds of homes. Ask Cheshire East for your house's original decision notice and read the conditions at the end. If one keeps the garage for parking, or the wording leaves you guessing, apply for a lawful development certificate before anyone knocks a wall down.
If an application is needed, Policy HOU 11 is the test. Alongside design and neighbours, it asks for parking in line with the borough's standards in Appendix C of the Local Plan Strategy, provided "in a way that does not detract from the character and appearance of the area". A front garden given over entirely to tarmac can fail that second half even where the numbers work. Get your designer to check your drive against them.
Ten conversions, matched to the town's houses
Roughly in the order they come up here. Each one has a fuller guide.
Single garage. The usual job on a semi or a link-detached house. Most of the effort goes into the front wall and the floor, not the room behind them.
Read our full guide: Single Garage Conversion: What Is Involved and What to Budget For →
Integral garage. Built into the house, so the new room shares walls and often a ceiling with it. On a newer estate, read the decision notice before you read any brochures.
Bedroom. A downstairs bedroom needs a way out in a fire. Where the room can only be reached through another, building control will expect an escape window.
Home office. An office adds no bedroom, so any parking question stays small. It still needs proper ventilation and a window that opens.
Utility or playroom. Converting the back half and keeping a store behind the old door is a sensible halfway house where the drive is short. A new utility needs extract ventilation.
Double garage. Keeping one bay for a car makes the parking side of HOU 11 far easier if you ever need to apply.
Detached garage. A gym, workshop or study used by the household is one thing. Fit it out as a self-contained annexe or studio flat and the Planning Portal treats it as a material change of use needing permission, particularly if it runs independently of the house.
Gym or studio. If the garage shares a wall with next door, that wall has to be insulated against sound.
Planning and building control. Planning depends on your house's history and the road outside; Building Regulations approval is needed almost every time and comes from Cheshire East's own team.
Cost and value. No Crewe figure here. Footings, floor levels and whether you need a new kerb and drive change the price more than the room size does.
Under the floor and behind the old door
Building control is Cheshire East's own service, run from Delamere House on Delamere Street, and the job ends with its completion certificate.
The wall that fills the old doorway may need a foundation of its own. The Planning Portal suggests digging down beside the existing one to see what is there. The slab needs a new damp proof membrane, normally with insulation on top, and raising it to the level of the house saves a step down into the room. A new utility or shower room also needs an extractor fan.
Radon depends on the exact address, so look yours up on the UKradon map before the floor is designed; if it falls in an affected area, ask building control what protection the new slab needs. And if the flood map puts you near Valley Brook or another Weaver tributary, I'd think twice before putting anyone to sleep at ground level.
Crewe Green and the listed railway cottages are the places to ask before anything else. As a conservation area, Crewe Green loses the right to clad the outside of a house, and work to a listed building may need listed building consent.
Where these facts come from
- Cheshire East Highways: dropped kerb, vehicular crossing
- Cheshire East SADPD: Policy HOU 11 Extensions and alterations
- Cheshire East Local Plan Strategy, site LPS 1 Central Crewe
- Cheshire East: building control site inspections
- GOV.UK: permeable surfacing of front gardens
- Planning Portal: garage conversion planning permission
- Planning Portal: converting a detached garage into self-contained living space
- Planning Portal: building regulations for garage conversions
- Planning Portal: in-filling the garage door
- Planning Portal: garage conversion flooring
- Planning Portal: garage conversion ventilation
- LABC: garage conversion tips from building control
- LABC: radon and building work
- Environment Agency: Weaver catchment flood alert area
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Questions people in Crewe ask
We live on Nantwich Road. Can we park on the front once the garage becomes a room?
Possibly, but it is two applications, not one. Nantwich Road is the A534, so a new dropped kerb needs planning permission as well as approval from Cheshire East Highways. Make sure the new drive drains within your own boundary.
Does Cheshire East still count my garage as a parking space?
It only matters if your conversion needs planning permission. Then Policy HOU 11 asks for parking in line with Appendix C of the Local Plan Strategy. Ask your designer to show how your drive meets it.
Could my son live in our detached garage?
Not without planning permission. The Planning Portal says turning a detached garage into self-contained living space is a material change of use, especially if it runs separately from the house. A games room or office for the family is a different matter.
How do I find out if our house has a condition stopping a garage conversion?
Ask Cheshire East for the decision notice for the estate or your house and read the conditions. If one removes permitted development rights or keeps the garage for parking, you need permission. If it is unclear, a lawful development certificate settles it in writing.