Property development planning permission is an important legal requirement for many projects involving the construction, conversion, extension or redevelopment of land and buildings. Whether you are planning to build new homes, convert a commercial property, divide a residential plot or redevelop an existing site, it is essential to establish the planning position before work begins.
Planning permission is not automatically granted because a person owns the property or land. The local planning authority must assess whether the proposed development is acceptable in its location and complies with relevant planning policies.
This guide explains when property development planning permission is required, the types of development that may need approval, the application process and the key issues that can affect a planning decision.
What Is Property Development Planning Permission?
Property development planning permission is formal approval from the local planning authority to carry out a proposed development.
Types of Property Development
Property development may include:
- Constructing a new house or building
- Building several homes on one site
- Converting a house into flats
- Changing an office, shop or warehouse into residential use
- Extending or substantially altering a building
- Redeveloping a previously developed site
- Subdividing a residential plot
- Converting agricultural land for another use
- Creating new commercial or mixed-use premises
- Demolishing and replacing an existing building
- Constructing access roads, parking areas or other associated infrastructure
Planning legislation defines development broadly. It includes building operations, engineering operations, material changes of use and certain subdivisions of buildings.
When Is Planning Permission Required for Property Development?
New Buildings
A new building will normally require planning permission. This applies to residential, commercial, industrial, agricultural and mixed-use developments.
The council will consider whether the proposed building is appropriate for the site, including its size, design, use, access and effect on the surrounding area.
Property Conversions
Converting an existing property into separate units may require planning permission.
Examples include:
- Converting a house into flats
- Converting an office into apartments
- Converting a shop into residential accommodation
- Converting an agricultural building into a dwelling
- Creating separate commercial units within an existing building
The existence of an established building does not remove the need to assess whether a material change of use has occurred.
Change of Use
A material change of use of land or buildings may require planning permission.
This could include changing:
- A dwelling into a house in multiple occupation
- An office into residential accommodation
- A warehouse into a leisure facility
- Agricultural land into a commercial use
- A shop into a restaurant
- A residential property into a business premises
Whether a change of use is material is a matter of fact and degree. Some changes within the same use class may not require planning permission, but associated building works or other consents may still be necessary.
Extensions and Alterations
Some minor extensions and alterations may benefit from permitted development rights. However, larger or more substantial works may require a full planning application.
Planning permission may be required where works:
- Increase the size or height of a building substantially
- Alter the external appearance
- Create additional residential units
- Affect a listed building
- Take place in a conservation area
- Involve a change of use
- Fall outside the limits of permitted development rights
Can Property Development Benefit from Permitted Development Rights?
Permitted development rights are a national grant of planning permission that allows certain works and changes of use to take place without submitting a full planning application.
However, these rights are subject to conditions and limitations relating to matters such as:
- Building size
- Height
- Location
- Design
- Transport
- Flood risk
- Contamination
- Neighbouring amenity
- The existing use of the property
Permitted development rights may also be restricted by an Article 4 direction, a planning condition or the location of the property.
Prior Approval
Some permitted development rights require prior approval from the local planning authority before work can begin.
Prior approval allows the council to assess specified matters relevant to that particular permitted development right.
Depending on the proposal, these matters may include:
- Transport and highways
- Flooding
- Contamination
- External appearance
- Natural light
- Noise
- Residential amenity
- Access and waste storage
Prior approval is not the same as a full planning application. The council can only consider the matters specified by the relevant permitted development legislation.
Lawful Development Certificate
Where a development is believed to benefit from permitted development rights, an applicant may apply for a lawful development certificate.
This can provide formal confirmation that:
- Existing development is lawful, or
- Proposed works or a proposed use would be lawful
A lawful development certificate does not replace other necessary consents, such as building regulations approval, listed building consent or environmental permits.
Types of Property Development Planning Application
Full Planning Permission
A full planning application provides detailed information about the proposed development.
It is commonly used for:
- New houses
- Housing schemes
- Commercial buildings
- Property conversions
- Mixed-use developments
- Redevelopment projects
A full application usually includes detailed drawings, proposed materials, access arrangements, landscaping and information about the intended use.
If permission is granted, the development must be carried out in accordance with the approved plans and any conditions attached to the decision.
Outline Planning Permission
Outline planning permission establishes whether the principle of development is acceptable before all details have been finalised.
An outline application may address:
- The proposed use
- The amount of development
- The general scale
- The location of buildings
- Access arrangements
Detailed matters may be reserved for a later application.
Outline permission can be useful for landowners seeking to establish the development potential of a site before investing in detailed design and technical reports.
Reserved Matters
Where outline permission has been granted, a reserved matters application may be required for details such as:
- Appearance
- Landscaping
- Layout
- Scale
- Access
The reserved matters proposal must remain within the scope of the outline permission and comply with its conditions.
Permission in Principle
Permission in principle is an alternative route for certain housing-led developments. It separates the consideration of whether a site is suitable in principle from the detailed technical assessment.
The permission in principle stage generally considers:
- Location
- Land use
- Amount of development
Technical details consent is then required before the development can proceed.
What Will the Local Planning Authority Consider?
The local planning authority will assess the proposal against the development plan and other relevant material considerations. Planning law requires decisions to be made in accordance with the development plan unless material considerations indicate otherwise.
The Principle of Development
The council will consider whether the proposed use is appropriate for the location.
Relevant issues may include:
- Settlement boundaries
- Housing allocations
- Employment land protection
- Countryside policies
- Green Belt restrictions
- Previously developed land
- Local housing need
- The sustainability of the location
- The availability of services and facilities
A proposal may be difficult to support where it conflicts with the local plan or would result in an unacceptable form of development.
Design and Appearance
The design of a development should respond positively to the character of the surrounding area.
The council may assess:
- Height
- Scale
- Massing
- Roof design
- Materials
- Building lines
- Density
- Landscaping
- Street frontage
- Visual impact
A development that is poorly designed or out of keeping with its surroundings may be refused even where there is a demand for additional housing or commercial space.
Neighbouring Amenity
The effect on neighbouring properties is an important planning consideration.
Potential concerns include:
- Loss of privacy
- Overlooking
- Overshadowing
- Loss of daylight or sunlight
- Noise
- Disturbance
- Overbearing development
- Loss of outlook
- Increased activity
- Poor separation distances
The council will also consider whether the proposed development provides acceptable living or working conditions for future occupants.
Highways, Parking and Access
Property development can increase traffic and place additional pressure on local roads. The application may therefore need to demonstrate that safe and suitable access can be provided.
The council may consider:
- Vehicle access
- Visibility
- Parking provision
- Vehicle manoeuvring
- Traffic generation
- Pedestrian routes
- Cycle storage
- Refuse collection
- Emergency access
- Public transport connections
Larger developments may require a transport statement or transport assessment.
Drainage and Flood Risk
The applicant may need to demonstrate that the site can be appropriately drained and that the development will not increase flood risk elsewhere.
Supporting information may include:
- Flood Risk Assessment
- Drainage strategy
- Sustainable drainage proposals
- Surface water calculations
- Foul drainage arrangements
- Water supply information
Flood risk can be a significant constraint, particularly where the site is located in a flood-risk area.
Ecology, Trees and Biodiversity
Development may affect habitats, protected species, trees and ecological networks.
The council may require:
- Ecological surveys
- Tree surveys
- Arboricultural impact assessments
- Biodiversity net gain information
- Habitat management proposals
- Protected species assessments
- Landscaping and planting plans
The level of information required will depend on the location and scale of the proposal.
Heritage and Conservation
Additional restrictions may apply where the property is:
- A listed building
- Within a conservation area
- Near a scheduled monument
- Within a historic park or garden
- Near other heritage assets
Listed building consent may be required separately from planning permission. The application may also need a heritage statement explaining how the proposal affects the significance of the asset.
What Documents Are Required?
The documents required will depend on the type and scale of the development.
A typical application may include:
- Planning application form
- Location plan
- Site plan
- Existing and proposed floor plans
- Existing and proposed elevations
- Roof plans
- Block plan
- Planning statement
- Design and Access Statement, where required
- Ownership certificate
- Agricultural land declaration, where applicable
- Transport statement or assessment
- Flood Risk Assessment
- Drainage strategy
- Ecological survey
- Biodiversity net gain information
- Tree survey
- Heritage statement
- Landscape proposals
- Viability assessment
- Energy or sustainability statement
- Community Infrastructure Levy information
- Draft Section 106 agreement, where relevant
Planning Drawings
Accurate drawings are essential to show:
- The site boundaries
- Existing buildings
- Proposed buildings
- Building dimensions
- Access points
- Parking spaces
- Landscaping
- Garden areas
- The relationship with neighbouring properties
Incomplete or inconsistent drawings can delay validation and create difficulties during the assessment process.
Planning Statement
A planning statement explains why the development is acceptable in planning terms. It should address the policies and planning issues relevant to the site.
It may cover:
- The principle of development
- Local housing or employment need
- Design and character
- Residential amenity
- Highways and parking
- Drainage
- Ecology
- Heritage
- Sustainability
- Planning benefits
- Infrastructure contributions
The Property Development Planning Permission Process
Step 1: Assess the Site
Before preparing an application, review:
- The local plan
- The planning history
- Settlement boundaries
- Site designations
- Green Belt status
- Conservation areas
- Listed buildings
- Flood risk
- Access arrangements
- Trees and ecological constraints
- Existing rights of way
- Restrictive covenants and title restrictions
Land ownership and private legal restrictions are separate from planning considerations. A planning permission does not override a restrictive covenant or private property right.
Step 2: Obtain Pre-Application Advice
Pre-application advice can help identify likely concerns before a formal application is submitted.
The council may provide feedback on:
- Whether the principle of development is acceptable
- The likely scale and density
- Design expectations
- Required surveys
- Highway matters
- Drainage
- Affordable housing
- Infrastructure contributions
Pre-application advice is not a guarantee of permission, but it can help reduce unnecessary costs and improve the proposal.
Step 3: Prepare the Application
The application should include the appropriate forms, drawings, statements and technical reports.
For larger or more sensitive developments, early engagement with the council, statutory consultees and the local community may help identify issues before submission.
Step 4: Submit and Validate the Application
Applications are usually submitted through the local planning authority or the Planning Portal.
The council will check whether the application is valid. If documents or fees are missing, the application may not be validated until the outstanding information is provided.
Step 5: Public Consultation
Once validated, the application may be publicised through:
- The council’s website
- Site notices
- Neighbour notifications
- Parish or town council consultation
- Other publicity methods required by law
Anyone may submit comments, but only relevant planning considerations will carry weight in the decision-making process.
Step 6: Decision
The council will assess the application against the development plan and other material considerations.
Most applications are decided within eight weeks. Larger or unusually complex applications generally have a thirteen-week statutory period, unless a longer period is agreed in writing.
How Much Does Property Development Planning Permission Cost?
The cost of obtaining planning permission varies according to the size, location and complexity of the proposal.
Potential costs include:
- Planning application fee
- Planning consultant fees
- Architect or architectural technician fees
- Site surveys
- Ecology reports
- Tree surveys
- Transport assessments
- Flood risk assessments
- Drainage reports
- Heritage assessments
- Viability assessments
- Legal advice
- Community Infrastructure Levy
- Section 106 contributions
For larger developments, infrastructure contributions and affordable housing requirements may have a significant effect on the financial viability of the project.
A proper development appraisal should therefore consider planning, legal, technical and construction costs before land is purchased or works begin.
What Happens If Planning Permission Is Refused?
Property development planning permission may be refused where the proposal conflicts with planning policies or would cause unacceptable harm.
Common reasons for refusal include:
- Unsuitable location
- Poor design
- Excessive scale or density
- Inadequate access
- Insufficient parking
- Highway safety concerns
- Loss of privacy
- Overshadowing
- Flood risk
- Ecological harm
- Heritage impact
- Green Belt concerns
- Lack of infrastructure
- Insufficient supporting information
Revising the Proposal
A revised application may address the council’s concerns by:
- Reducing the scale of development
- Changing the layout
- Improving access
- Increasing parking
- Altering the design
- Providing additional landscaping
- Reducing the effect on neighbours
- Submitting further technical evidence
Appealing the Decision
An applicant may have a right to appeal against a refusal or certain planning conditions.
An appeal should respond directly to the reasons for refusal and explain why the proposal should be approved. It may be determined through written representations, a hearing or a public inquiry, depending on the circumstances.
How Charrette Law Can Help\
Property development planning permission can involve complex planning, legal and technical issues.
Charrette Law can assist landowners, developers and property owners with:
- Site appraisals
- Planning strategy
- Pre-application advice
- Property development proposals
- Planning applications
- Planning statements
- Planning appeals
- Planning conditions
- Section 106 agreements
- Community Infrastructure Levy
- Green Belt development
- Agricultural land development
- Change of use applications
- Planning enforcement matters
Early professional advice can help identify planning risks, assess the development potential of a property and ensure that the application is supported by appropriate evidence.
Conclusion
Property development planning permission is a key requirement for many projects involving new buildings, conversions, changes of use and redevelopment. The fact that a person owns a property or land does not mean that development can proceed without approval.
The local planning authority will consider the principle of development, design, access, parking, drainage, ecology, heritage, infrastructure and the effect on neighbouring properties. A carefully prepared application supported by accurate drawings and relevant technical reports can improve the prospects of a successful outcome.
Landowners and developers should assess the planning position before acquiring land, committing to a development scheme or beginning construction. Professional planning and legal advice can help identify potential obstacles and create a more effective development strategy.
Frequently Asked Questions
Do I need planning permission to develop a property?
Most property development projects require planning permission, particularly where they involve new buildings, additional homes, material changes of use or substantial alterations.
Can I develop a property without planning permission?
Some works may benefit from permitted development rights, but these rights are subject to conditions and limitations. A lawful development certificate may provide formal confirmation where appropriate.
Does converting a house into flats require planning permission?
Usually. Converting one dwelling into two or more separate homes may involve a material change of use and will generally require planning permission.
Can I obtain planning permission before buying a property?
Yes. You may be able to seek pre-application advice or submit a planning application before purchasing a site, subject to the relevant ownership and notification requirements.
What is the difference between full and outline planning permission?
Full planning permission considers the detailed proposal. Outline planning permission establishes the principle of development, with certain details reserved for a later application.
How long does property development planning permission take?
Most applications are normally decided within eight weeks. Larger or unusually complex applications may have a thirteen-week statutory determination period or take longer by agreement.
Can planning permission be refused because of objections from neighbours?
Neighbour objections may be considered where they raise relevant planning matters. However, the decision must be based on planning policies and material considerations rather than simply the number of objections.
What happens if I develop a property without permission?
The local planning authority may take enforcement action. This can include requiring the unauthorised development to be altered or removed, depending on the circumstances.
