Before starting any building work in Manchester, one of the most common questions homeowners ask is whether they need planning permission.
In this guide, we explain which building works require planning permission and which fall under permitted development rights so you can plan your project with confidence. This applies to homeowners, landlords, and property investors across Manchester, Stockport, Salford, Bolton, Trafford, Altrincham, Sale, Bury, Tameside, and Rochdale.
Planning Permission in Manchester: What You Need to Know
Planning permission is formal approval from your local council that allows you to carry out certain types of building work or changes of use on your property. In Greater Manchester, planning applications are handled by the relevant local authority for your area, whether that is Manchester City Council, Stockport Council, Salford City Council, Bolton Council, Trafford Council, Tameside Council, Bury Council, or Rochdale Council.
A standard householder planning application in England currently costs £258. The council has eight weeks to make a decision on most householder applications.
What Is Permitted Development?
Permitted development rights allow homeowners to carry out certain types of building work without needing to submit a planning application. These rights are set out in national legislation and apply across England, including all of Greater Manchester.
Permitted development has limits and conditions. If your project exceeds those limits, you will need full planning permission. It is also worth noting that permitted development rights can be restricted or removed entirely in conservation areas, on listed buildings, or where the council has placed an Article 4 direction on your property.
Building Works That Usually Do NOT Need Planning Permission
Single Storey Rear Extensions
Under permitted development, you can build a single storey rear extension without planning permission, subject to the following limits:
For detached houses, the extension can project up to 8 metres from the rear wall of the original house (or 6 metres if you do not apply for prior approval under the larger home extension scheme).
For semi detached and terraced houses, the extension can project up to 6 metres (or 4 metres without prior approval).
The extension must not be higher than 4 metres, must not cover more than half the garden area, and must be built using materials that are similar in appearance to the existing house.
Loft Conversions
Most loft conversions fall under permitted development as long as the additional roof space created does not exceed 40 cubic metres for terraced houses or 50 cubic metres for detached and semi detached houses.
The conversion must not raise the height of the existing roof, and any dormer must not extend beyond the plane of the existing roof slope facing the highway. Materials used should be similar in appearance to the existing house.
Internal Alterations
Internal changes such as removing non load bearing walls, converting a garage into a living room, or reconfiguring the layout of rooms generally do not require planning permission. However, any structural work involving load bearing walls will need Building Regulations approval and should be overseen by a structural engineer.
Kitchen and Bathroom Renovations
Renovating a kitchen or bathroom, including replacing units, retiling, replumbing, and rewiring, does not require planning permission. Building Regulations may apply if you are carrying out significant electrical or plumbing work.
Replacing Windows and Doors
Like for like replacement of windows and doors does not need planning permission. However, new windows and doors must comply with Building Regulations for thermal performance and safety glazing. If your property is in a conservation area, there may be additional restrictions on changing the style or materials.
Garden Walls, Fences, and Gates
Fences and walls up to 2 metres high (or 1 metre if next to a highway) can be erected without planning permission. Anything higher requires an application.
Driveways and Hardstanding
Laying a new driveway or patio does not need planning permission if you use permeable materials (such as gravel or permeable block paving) or if the rainwater drains into a lawn or border within your property. If you want to lay impermeable materials (such as solid concrete or tarmac) over an area larger than 5 square metres, you will need to submit a planning application.
Outbuildings, Sheds, and Summerhouses
Garden buildings are generally permitted development as long as they are single storey, not used as a separate dwelling, and do not cover more than half the garden. Maximum height is 2.5 metres if within 2 metres of a boundary, or 4 metres with a dual pitched roof otherwise.
Solar Panels
Solar panels can be installed on the roof of your house under permitted development as long as they do not protrude more than 200mm from the roof surface and do not extend above the highest part of the roof.
Building Works That DO Require Planning Permission
Double Storey Extensions
A two storey extension almost always requires planning permission. Permitted development rights for two storey extensions are more restrictive: the extension must not extend beyond the rear wall by more than 3 metres, must be at least 7 metres from the rear boundary, and must not be higher than the eaves of the existing house.
Because these limits are tight, most double storey extensions in Greater Manchester require a full planning application.
Side Extensions Near a Boundary
Side extensions that are more than one storey and are within 2 metres of a boundary require planning permission. Even single storey side extensions must not exceed the width of half the original house.
Balconies, Raised Platforms, and Roof Terraces
Any raised platform, balcony, or roof terrace above 300mm in height requires planning permission. This is a common issue with flat roof extensions where homeowners want to use the roof as a terrace.
Front Extensions and Front Porches (Beyond Limits)
Porches are generally permitted development if they are no more than 3 square metres in floor area, no higher than 3 metres, and at least 2 metres from a boundary with a highway. Anything larger or closer to the road needs planning permission.
New Build Properties
Building a new house or dwelling always requires planning permission. This includes building a new house on a plot of land, converting a commercial building into residential use, and subdividing an existing house into flats.
HMO Conversions (Large HMOs)
Converting a property into a small HMO (3 to 6 occupants forming 2 or more households) falls under permitted development in most areas through Use Class C4. However, converting to a large HMO (7 or more occupants) requires planning permission as it falls under Sui Generis use.
Some councils across Greater Manchester, including Manchester City Council and Salford City Council, have implemented Article 4 directions that remove the permitted development right for HMO conversions entirely. In these areas, you will need planning permission even for small HMOs. Always check with your local authority before proceeding.
Flat Conversions
Converting a house into self contained flats is a material change of use and always requires planning permission, regardless of whether any external changes are made to the building.
Commercial to Residential Conversions
Converting a commercial property (such as an office, shop, or warehouse) to residential use may be possible under Class MA (formerly Class O) permitted development rights, subject to prior approval from the council. Prior approval applications are assessed on a limited number of criteria including flooding, transport, contamination, and noise. However, not all commercial buildings qualify, and the rules are complex.
Work in Conservation Areas
If your property is in a conservation area, permitted development rights may be restricted. Cladding, certain types of extensions, satellite dishes on front elevations, and demolition of walls or outbuildings may all require planning permission for building work in Manchester.
Work on Listed Buildings
Any work that affects the character of a listed building, both internal and external, requires listed building consent in addition to any planning permission. This includes changes to windows, doors, walls, fireplaces, cornicing, and other original features.
Building Regulations: Separate from Planning Permission
Many homeowners confuse planning permission with Building Regulations. They are separate processes.
Planning permission controls what you can build and where. Building Regulations control how the work is done and ensure it meets standards for structural safety, fire safety, insulation, ventilation, drainage, and electrical safety.
Almost all building work requires Building Regulations approval, including work that does not need planning permission. For example, a single storey rear extension under permitted development still requires Building Regulations sign off.
Building Regulations approval can be obtained through your local council’s building control department or through a private approved inspector.
Do I Need a Lawful Development Certificate?
If you are carrying out work under permitted development and do not need planning permission, it is strongly recommended that you apply for a Lawful Development Certificate (LDC) from your local council. This costs £129 for a householder application and provides formal confirmation that the work is lawful.
An LDC is particularly valuable if you plan to sell the property in the future, as conveyancing solicitors regularly ask for evidence that building work was carried out lawfully.
How to Apply for Planning Permission in Manchester
If your project requires planning permission for building work in Manchester, you can apply online through the Planning Portal (planningportal.co.uk). You will need architectural drawings, a site plan, a location plan, and a completed application form.
For a standard householder application in England, the fee is £258 and the target decision time is 8 weeks. More complex applications, such as change of use or new build, have different fees and timescales.
It is advisable to arrange a pre application meeting with your local planning officer before submitting. Most councils in Greater Manchester offer this service (some charge a fee) and it can help you understand whether your proposal is likely to be approved before you spend money on a full application.
Ready to Plan Your Building Project in Manchester?
Whether you are a homeowner planning an extension, a landlord converting a property into an HMO, or a property investor refurbishing before a sale, understanding planning permission is the first step to a successful project.
At Renovat Construction, we work with homeowners, landlords, and property investors across Manchester, Stockport, Salford, Bolton, Trafford, Altrincham, Sale, Bury, Tameside, and Rochdale. We can guide you through the planning process and deliver your project from start to finish.
Get your free, no obligation quote today.
📞 0161 7060 480 📧 contact@renovat.co.uk 🌐 renovat.co.uk