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Planning and building rulesDo you need planning permission for a golf simulator?
Usually not. Setting up a simulator inside a room, garage or outbuilding you already have is not development. Permission and building regulations come into play when you build something new, change the outside of the house, or turn a garage into a lived-in room.
Quick answer by situation
These are the common routes to a golf room in England. Wales and Scotland follow below. Rules checked 5 October 2026; your council has the final say.
| Your plan | Planning permission? | Building regulations? |
|---|---|---|
| Simulator in an existing room, garage or garden building, no building work | No | No for the kit itself. A new electrical circuit is notifiable (see electrics) |
| Converting a garage internally, no extension | Usually not, unless your permitted development rights were removed or the house is listed | Normally yes if the garage becomes habitable space |
| Replacing the garage door with a wall and window | Check first: it changes the outside of the house | Yes, as part of the conversion |
| New garden room within permitted development limits | No | Not under 15 m² with no sleeping space; 15–30 m² if at least 1 m from a boundary or built mainly of non-combustible materials |
| New garden room taller than the limits allow | Yes | As above |
| Any outbuilding at a listed building | Yes | Depends on size and position |
| Flat or maisonette | Yes for an outbuilding: permitted development does not cover flats | Depends on the work; you will also need landlord or freeholder consent |
Permitted development is the set of national rules that let you build some things without applying. It only covers uses “incidental to the enjoyment of the dwellinghouse”, which a home golf room is. It does not cover a separate home or a business open to paying customers.
Golf simulator in a garage
A garage is the most common golf room, and fitting a launch monitor, net or enclosure inside it needs no permission at all. The questions start when you convert it.
Planning. The Planning Portal says planning permission is not usually required if the work is internal and does not enlarge the building. Three things change that. On many newer estates a planning condition removed permitted development rights or requires the garage to stay available for parking, so check your property’s planning history on the council website before you start. Conservation areas and Article 4 directions can also remove rights. A listed building may need listed building consent even for internal work.
The garage door. Keeping the door and building the golf room behind it avoids changing the outside of the house, and keeps the space usable as a garage later. Swapping the door for a wall and window is an external alteration, so ask the council before you do it.
Building regulations. Converting a garage into habitable space normally needs building regulations approval, covering walls, insulation, windows and doors, ventilation, drainage and electrics. If you are insulating, heating and decorating the garage so it works like another room, assume approval is needed and speak to building control. For room sizes, see the single garage and double garage guides.
Garden rooms and outbuildings (England)
A new garden room is where golfers most often hit the planning limits, because a full driver swing needs more height than a typical garden building has inside. Under permitted development in England:
| Rule | Limit |
|---|---|
| Height within 2 m of a boundary | 2.5 m overall, whatever the roof |
| Height elsewhere, dual-pitched roof | 4 m overall, 2.5 m at the eaves |
| Height elsewhere, flat or other roof | 3 m overall, 2.5 m at the eaves |
| Storeys | One |
| Position | Not forward of the front of the house |
| Coverage | No more than half the land around the original house, counting other buildings and extensions |
| National Parks, AONBs, the Broads, World Heritage Sites | Buildings more than 20 m from the house limited to 10 m²; buildings at the side need permission |
A 2.5 m building leaves roughly 2.0–2.2 m inside once the floor and roof are built, which is too low for most full swings. Our garden room guide works through the heights, and the ceiling height guide shows what fits under a lower roof. If you need more height near a boundary, apply for planning permission rather than building over the limit.
Electrics: the part people forget
A golf room usually needs power for a projector, PC, heater and lighting. In England and Wales, installing a new circuit or replacing a consumer unit is notifiable work under Part P of the building regulations. The simplest route is a registered electrician on a government-approved competent person scheme, who can certify the work. Keep the certificate: you will be asked for it when you sell the house. Adding sockets to an existing circuit outside special locations is not notifiable, but should still be done safely.
Wales
Wales has its own permitted development limits for outbuildings, and some are tighter than England’s:
| Rule | Limit in Wales |
|---|---|
| Within 2 m of a boundary | 2.5 m |
| Within 2 m of the house | 1.5 m |
| More than one roof pitch | 4 m |
| Single pitch or other roof | 3 m |
| Flat roof | 2.5 m |
| Eaves | 2.5 m |
| Coverage | No more than 50% of the curtilage |
The flat-roof cap matters for golf: many garden rooms have flat roofs, and 2.5 m overall is too low inside for most full swings. A pitched roof, or a planning application, is usually the way to the height you need. Listed buildings need a planning application. Part P applies to electrics in Wales as in England.
Scotland
Scotland’s rules are different again. Under permitted development an outbuilding must be behind the house, cover less than half the rear garden, be no more than 4 m high, keep any part within 1 m of a boundary to 2.5 m, and have eaves of no more than 3 m. In a conservation area the limit is 8 m², and at a listed building 4 m².
Instead of building regulations approval, Scotland uses building warrants. Some detached single-storey buildings between 8 m² and 30 m² do not need a warrant if they meet conditions, such as sitting at least 1 m from a boundary and having no fixed combustion appliance or sanitary facilities. Check with your council’s building standards team before you order a building.
Northern Ireland
Northern Ireland has its own permitted development rules and building control system. Check with your council before you build an outbuilding or convert a garage.
Flats, leasehold and rented homes
Permitted development for outbuildings does not apply to flats or maisonettes, so any new garden building needs planning permission. Leaseholders usually need the freeholder’s consent for alterations, and tenants need the landlord’s. A freestanding setup with no drilling avoids most of this: see simulators for renters.
How to be sure before you spend
- Check the planning history. Search your address on the council’s planning portal for conditions that remove permitted development rights or keep the garage for parking.
- Ask the council. Many councils offer pre-application advice, sometimes for a fee.
- Get a Lawful Development Certificate. It confirms a proposed building or use is lawful. It is optional, costs half the normal planning fee, and gives you proof when you sell.
- Talk to building control early if you are converting a garage or building over 15 m².
- Use a registered electrician for new circuits, and keep the certificate.
This is general guidance, not legal advice. Rules change and local conditions apply, so confirm with your council before you build.
Frequently asked questions
Do I need planning permission to put a golf simulator in my garage?
No, not to set one up inside an existing garage. Converting the garage usually needs no planning permission if the work is internal, unless a planning condition removed your permitted development rights or the house is listed. Building regulations approval is normally needed if the garage becomes habitable space.
Can a garden room be tall enough for a golf simulator without planning permission?
In England, a building more than 2 m from every boundary can be up to 3 m tall with a flat roof or 4 m with a dual-pitched roof under permitted development. Within 2 m of a boundary the limit is 2.5 m, which is usually too low inside for full swings.
Does a garage conversion for a golf simulator need building regulations?
Normally yes, if you are turning the garage into habitable space with insulation, heating, new walls or windows. Fitting a net or enclosure inside an unconverted garage does not.
Do I need an electrician’s certificate for a golf room?
In England and Wales, a new circuit or a new consumer unit is notifiable under Part P. A registered electrician can certify it; keep the certificate for when you sell.
Are the rules different in Scotland and Wales?
Yes. Wales caps flat-roofed outbuildings at 2.5 m and anything within 2 m of the house at 1.5 m. Scotland allows up to 4 m but only behind the house, with 2.5 m within 1 m of a boundary, and uses building warrants instead of building regulations approval.
Sources
Planning Portal: outbuildings · Planning Portal: outbuildings and building regulations · Planning Portal: garage conversion planning · Planning Portal: garage conversion building regulations · Planning Portal: Lawful Development Certificate · IET: Part P in England and Wales · Welsh Government: outbuildings · mygov.scot: sheds, garages and outbuildings · Scottish Government: work not requiring a building warrant. Checked 5 October 2026. Rules change and local conditions apply, so confirm with your council before you build