Planning permission requirements for garages in England depend on size, height, location and use.
1. Permitted Development Rights for Garages in England
In England, homeowners benefit from permitted development rights, which allow certain works to be carried out without applying for planning permission. For garages, car ports and cart lodges within a residential garden, the relevant permitted development right is generally Class E of Schedule 2, Part 1 of the General Permitted Development Order.
Class E allows buildings and structures within the curtilage of a dwellinghouse for purposes incidental to the enjoyment of that dwellinghouse. This can include garages, cart lodges, car ports, outbuildings and garden sheds, provided all conditions are met.
Key Point
Permitted development rights are not the same as a planning permission. They are a lawful right to carry out development without applying, but only where strict limits are met. We usually recommend securing a Lawful Development Certificate before starting work.
If your garage does not meet the permitted development criteria, you will need to submit a full planning application to your local planning authority. Cedar Planning provides fixed-fee planning application support for garages, cart lodges and car ports across England.
2. Size Restrictions: The 50% Rule
One of the most important permitted development conditions for garages is the 50% coverage rule. To qualify, the total area of ground around the house covered by buildings, enclosures or structures must not exceed 50% of the total curtilage of the dwellinghouse, excluding the area occupied by the original house itself.
This includes all buildings and enclosures within the garden, not just the proposed garage. Existing sheds, outbuildings, swimming pool enclosures and previous additions may all count towards the calculation.
Don't Forget Previous Additions
The 50% coverage calculation includes buildings added by previous owners. A garden with an existing large outbuilding may have very little permitted development allowance left for a new garage.
In protected areas, additional restrictions apply. In Conservation Areas, National Parks, National Landscapes, World Heritage Sites and the Broads, any building more than 20 metres from the dwellinghouse must not exceed 10 square metres in floor area.
However, it is also important to note that the outbuilding or garage will need to be 'incidental' to your home and is 'reasonably required' for these purposes. This isn't often an issue for single or double garages, but can become an issue for outbuildings which are much bigger in size. Therefore we always recommend securing a Certificate of Lawfulness before commencing works. At Cedar Planning we have experience in gaining Certificate of Lawfulness for very large garages and outbuildings.
3. Height Restrictions Explained
The height of your proposed garage is one of the most important Class E restrictions. The permitted height depends on the roof type and whether the garage is within two metres of a boundary.
Permitted Development Height Limits for Garages
- Dual-pitched roof — maximum height of 4 metres to the ridge.
- Within 2 metres of a boundary — maximum height of 2.5 metres regardless of roof type.
- Other roof types more than 2 metres from a boundary — maximum height of 3 metres.
- Eaves height — must not exceed 2.5 metres in any case.
- Single-storey only — a garage with a room above will require planning permission.
4. Location Rules: Where Can Your Garage Go?
The Principal Elevation Rule
Class E permitted development does not allow a garage to be built forward of the principal elevation of the dwellinghouse. In most cases, that means a garage in the front garden will need full planning permission.
Curtilage Requirement
The garage must be within the domestic curtilage of the dwellinghouse. Land that is paddock, agricultural land or outside the established residential garden may require planning permission before a garage can be built.
Detached vs Attached
A detached garage is usually assessed under Class E. An attached or integral garage may instead be treated as an extension to the dwellinghouse, with different permitted development rules applying.
5. What Can You Use Your Garage For?
The use must be incidental to the enjoyment of the dwellinghouse. Typical incidental uses include vehicle storage, household storage, garden equipment, a home gym, hobby workshop or personal home office.
Commercial Use Can Change the Position
Using a garage for commercial vehicle repairs, business storage, a separate dwelling or holiday let is unlikely to fall within normal Class E incidental use and may require planning permission.
6. Protected Areas and Listed Buildings
Permitted development rights are reduced or removed in certain protected areas. Conservation Areas, National Parks, National Landscapes, World Heritage Sites and the Broads all carry additional restrictions. Listed buildings are more restrictive again.
Listed Buildings: No Class E Shortcut
If your home is listed, Class E outbuilding rights do not apply in the same way. You will usually need full planning permission and potentially listed building consent.
Not Sure Whether Your Garage Needs Planning Permission?
Cedar Planning offers a free initial feasibility review. We can check the permitted development position, identify constraints and give you honest advice before any fee is agreed.
7. Article 4 Directions and Planning Conditions
Even where a garage appears to meet the normal Class E criteria, permitted development rights may have been removed by an Article 4 Direction or by planning conditions attached to a previous permission.
Article 4 Directions are often used in Conservation Areas or sensitive residential neighbourhoods. Planning conditions removing Class E rights are common on newer housing estates. Cedar Planning can check this as part of a feasibility study.
8. Can I Build a Garage in My Front Garden?
A garage in the front garden, forward of the principal elevation, is not permitted under Class E. You will need a full planning application, assessed against design, street scene, highway safety, parking and neighbour amenity considerations.
Front Garden Garages: Applications Available
Cedar Planning provides a fixed-fee planning application service for front garden garages across England.
9. Should I Apply for a Lawful Development Certificate?
Even if you are confident that your proposed garage meets the permitted development criteria, a Lawful Development Certificate is strongly recommended. It provides written confirmation from the local planning authority that the works are lawful.
- Protection against enforcement: confirms the garage was lawful when approved.
- Useful for property sales: solicitors often ask for evidence of planning compliance.
- Peace of mind: lets you proceed with greater certainty.
Don't Skip the Lawful Development Certificate
Cedar Planning can prepare and submit Lawful Development Certificate applications as part of its planning application service.
10. Quick Reference Summary: Garage Permitted Development Rules
The table below summarises key permitted development rules for garages in England under Class E. This is a general guide only — always seek professional advice for your specific situation.
| Rule / Scenario | Permitted Development? | Notes |
|---|---|---|
| Detached garage in rear garden, under height limits, under 50% coverage | Yes - mostly | LDC advised for certainty. Needs to meet 'reasonable' and 'incidental' tests. |
| Garage in front garden | No | Full planning permission required |
| Attached garage | Not under Class E | Different extension rules may apply |
| Garage with room above / two storeys | No | Must be single storey |
| Garage within 2m of boundary over 2.5m high | No | 2.5m maximum height applies |
| Garage in Conservation Area, over 10m² and more than 20m from house | No | Protected-area restriction applies |
| Garage at a listed building | No | Planning/listed building consent likely required |
| Garage for commercial use | Depends | May require planning permission |
| Article 4 or Planning Conditions removing PD Rights | No | Full planning permission required |
Need Help With Your Garage Planning Application?
Whether you need a Lawful Development Certificate, a full planning application, or advice on a refused application, Cedar Planning provides expert fixed-fee planning consultancy across England.
Conclusion
In many cases, you do not need planning permission to build a garage in your garden in England. However, the permitted development rules are technical and depend on height, size, location, use, protected-area status and whether permitted development rights have been removed.
Before starting work, it is usually sensible to obtain professional advice and, where appropriate, secure a Lawful Development Certificate. Cedar Planning can review your proposal, confirm whether planning permission is required and prepare the necessary application documents.
Important notice:
This article is intended as general guidance only and does not constitute formal planning or legal advice. Planning policy and permitted development rules are subject to change, and their application depends on the specific circumstances of your property. Cedar Planning recommends obtaining professional advice tailored to your individual situation before taking any action. Cedar Planning Limited is a registered planning consultancy operating across England.
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Dan Malloy MRTPIDirector and Chartered Town Planner at Cedar Planning, with more than ten years of public and private-sector planning experience. About Cedar Planning
