Garden buildings are now one of the most popular ways to create extra space at home. They can be used as offices, gyms, studios, hobby rooms, workshops, garden rooms or flexible family space.

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Some garden buildings may fall under permitted development, but the rules are not always simple. The position, height, roof shape, size, use and relationship to boundaries can all affect whether planning permission or a lawful development certificate may be needed.

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Official guidance links permitted-development height limits to roof form and boundary position, so roof style can matter when deciding whether a garden building is likely to comply.

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Planning issues can arise where:

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• The garden building is close to a boundary

• The overall height is too high for its position

• The roof style affects the planning position

• The building is large in relation to the garden

• The building is proposed forward of the house

• The site is in a conservation area or sensitive location

• The building includes a veranda, balcony or raised platform

• The use is more than normal incidental domestic use

• The building may affect neighbours, outlook or privacy

• The council needs drawings to confirm the planning position

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Ask PAS About Garden Building Plans and Drawings

 

The plans and drawings are a key part of getting a garden building right. They show where the building will sit, how large it will be, what roof form is proposed and how it relates to the house, boundaries and garden.

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Planning Application Services (PAS) can prepare garden building plans and drawings for homeowners who need to show:

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• The existing house and garden layout

• The proposed garden building position

• The size, height and footprint of the building

• The distance from boundaries

• The proposed roof style

• The external materials and appearance

• The proposed use of the building

• The relationship to neighbours and surrounding properties

• Whether planning permission or a lawful development certificate may be needed

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PAS can prepare drawings for:

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• Garden rooms

• Home offices

• Garden studios

• Garden gyms

• Workshops

• Hobby rooms

• Garden treatment rooms

• Detached outbuildings

• SIPs garden buildings

• Timber-framed garden buildings

• Flat-roof garden buildings

• Mono-pitch garden buildings

• Dual-pitch garden buildings

• Garden buildings in sensitive or restricted locations

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SIPs Garden Buildings and Modern Construction

 

Many modern garden buildings are built using SIPs — Structural Insulated Panels. SIPs can be a good option for homeowners who want a well-insulated garden office, studio or year-round garden room.

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A SIPs garden building still needs to be considered carefully from a planning point of view. The panel build-up, roof depth, insulation, floor construction and external cladding can all affect the finished height and appearance.

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PAS can help show:

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• The proposed footprint

• The finished external dimensions

• The roof build-up and roof form

• The relationship to boundaries

• The external cladding and materials

• How the building will look within the garden

• Whether the design is likely to need a planning application or lawful development certificate

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Getting the Roof Style Right

 

The roof style can make a big difference to how a garden building is assessed.

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Different roof forms may include:

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• Flat roofs

• Mono-pitch roofs

• Dual-pitch roofs

• Hipped roofs

• Green roofs

• Low-profile warm roofs

• Contemporary parapet roofs

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A flat roof may help keep the overall height lower, which can be useful where the building is close to a boundary. A pitched roof may look more traditional, but it can increase the overall height and may need more careful planning consideration.

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PAS can help review the proposed roof style so the drawings reflect the planning position, the building design and the practical construction requirements.

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What a Garden Building Planning Package May Include

 

The exact information depends on the project, but a typical garden building package may include:

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• Site location plan

• Block plan

• Existing garden layout

• Proposed garden layout

• Existing and proposed elevations

• Floor plan

• Roof plan

• Section drawing where needed

• Boundary information

• Height and roof-style notes

• Materials notes

• Photos of the garden and surrounding context

• Supporting planning notes

• Lawful development certificate support where appropriate

• Planning application submission support

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A clear drawing package helps the council understand the proposal and gives the homeowner a proper record of what has been applied for or confirmed.

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Why Professional Support Helps

 

Garden buildings are often sold as simple products, but the planning position can depend on the site, roof design, location and intended use.

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Professional support can help you avoid:

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• Choosing the wrong roof style

• Building too close to a boundary without checking the height

• Assuming the project is permitted development when it may not be

• Missing conservation area or planning restrictions

• Submitting unclear or incomplete drawings

• Failing to explain the proposed use properly

• Delays caused by council requests for extra information

• Problems when selling the property later

• Confusion between planning, lawful development and Building Regulations

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PAS can help you understand what drawings and approvals may be needed before you commit to the build.

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Full-Service Support from PAS

 

PAS can provide support from the first design check through to the next stages after planning or lawful development confirmation.

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This may include:

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• Initial project review

• Garden building plans and drawings

• Roof-style and height review

• SIPs garden building drawings

• Planning application support

• Lawful development certificate support

• Help responding to council queries

• Building Regulations advice where needed

• Structural design coordination where required

• Party wall advice and services where needed

• Practical guidance before installation or construction starts

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A garden building can be a valuable addition to your home, but the design, roof style, drawings and planning route should be checked before work begins.

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Get expert help with your garden building project

 

Whether you need garden building plans, planning drawings, a lawful development certificate, a planning application or support after approval, Planning Application Services (PAS) can help you understand what is needed and provide a clear quote for the right level of support.

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Tell us what you are planning, send any photos, sketches or existing drawings you have, and we can advise on the next steps.