Temporary structures offer a flexible and practical solution when additional space is needed without committing to permanent construction. They are used across a wide range of projects, including events, education, construction, healthcare, retail, hospitality and commercial operations.
From modular offices and temporary classrooms to site cabins, marquees and storage buildings, temporary structures can often be installed more quickly and at a lower initial cost than traditional buildings. However, before purchasing, hiring or installing a structure, it is important to understand the planning requirements that may apply.
A structure being described as “temporary” does not automatically mean it is exempt from planning control. Its purpose, size, location, duration and impact on the surrounding area may all influence whether planning permission or another form of approval is required.
At Planning Build, we help homeowners, businesses, landowners and developers assess the planning position of proposed temporary structures before work begins. Our team provides clear planning advice, prepares applications, develops architectural designs and supports projects from the initial concept through to delivery. Planning Build’s services cover planning strategy, documentation and representation to help clients secure approval from their local planning authority.
What Are Temporary Structures?
Temporary structures are buildings, installations or constructions intended to remain in place for a limited period rather than becoming a permanent part of a site.
The term can cover a wide range of structures, including:
- Event marquees and tents
- Portable and modular offices
- Temporary classrooms
- Construction site cabins
- Welfare facilities
- Temporary healthcare buildings
- Pop-up retail units
- Temporary hospitality spaces
- Exhibition pavilions
- Storage buildings
- Temporary warehouses
- Canopies and shelters
Temporary structures are often designed to be portable, demountable or easy to remove. However, the fact that a structure can be dismantled does not necessarily determine its planning status.
For planning purposes, the local authority may consider how the structure is used, how long it will remain on the site, whether it is connected to services, how it affects the appearance of the area and whether it creates additional activity or impacts.
Before committing to a temporary structure, a professional assessment can help identify potential planning risks. Planning Build’s Feasibility Advice & Strategy service can help clients understand site constraints, development opportunities and the most appropriate planning route.
Do Temporary Structures Require Planning Permission?
Not all temporary structures require planning permission, but some do.
The planning position depends on the individual circumstances of the proposal. There is no single rule that applies to every temporary building, marquee, cabin or modular unit.
Factors that may influence whether planning permission is required include:
- The proposed use of the structure
- The length of time it will remain in place
- Its size, height and footprint
- Its location on the site
- Whether it is fixed to the ground
- Whether it requires new utilities or infrastructure
- The impact on neighbouring properties
- The effect on traffic, access and parking
- The visual impact on the local area
- Whether the site is subject to planning restrictions
- Whether permitted development rights apply
A small structure used for a short period may be treated differently from a large modular building intended to remain on site for several years. Similarly, a temporary structure in a conservation area or near a listed building may require more detailed consideration than a comparable structure on an unrestricted commercial site.
Planning Build can assess your proposal and advise whether a formal application may be necessary. Our Planning Permission service provides strategic guidance to help clients understand local authority requirements and move forward with greater confidence.
Common Uses of Temporary Structures
Temporary structures are used across many sectors because they provide adaptable space and can often be delivered more quickly than permanent buildings.
Temporary Structures for Events
Marquees, festival tents, exhibition spaces and temporary stages are commonly used for:
- Weddings
- Corporate events
- Festivals
- Outdoor exhibitions
- Community activities
- Seasonal markets
- Sporting events
Planning considerations may include the duration of the event, the number of visitors, traffic and parking arrangements, noise, operating hours and the impact on nearby residents.
Where a structure supports a public event, additional permissions or licences may also be required. Planning Build can help assess the planning implications before event arrangements are finalised.
Temporary Classrooms and Educational Buildings
Schools and educational institutions may require additional space because of increasing pupil numbers, building works or changes in operational requirements.
Temporary classrooms can provide a practical solution, but planning authorities may consider:
- The location of the classroom
- Its impact on outdoor space
- Pedestrian and vehicle access
- Parking and drop-off arrangements
- The effect on neighbouring properties
- The duration of the proposed use
- The design and appearance of the structure
Planning Build can combine planning expertise with Architectural Design support to prepare clear drawings and documentation for educational projects.
Construction Site Cabins and Welfare Units
Construction sites often require temporary offices, storage facilities, welfare units and staff accommodation.
The planning position may depend on whether the structure is directly connected to approved development, how long it will remain on the site and whether it is genuinely temporary.
Site conditions, existing planning permissions and planning restrictions may also affect what can be installed.
Planning Build can review the relevant planning history and conditions before construction begins, helping developers and contractors reduce the risk of unexpected planning issues.
Temporary Commercial Structures
Businesses may use temporary structures to support:
- Pop-up shops
- Seasonal retail
- Additional office space
- Temporary hospitality venues
- Promotional events
- Customer service areas
- Commercial storage
The local planning authority may assess the impact of the proposal on customer activity, deliveries, parking, access, noise and neighbouring properties.
If the structure creates a new use or significantly changes the way a site operates, further planning considerations may apply.
Temporary Storage Buildings
Temporary storage structures can be used by commercial businesses, construction companies, agricultural operations and property owners.
The planning position may depend on the structure’s size, location, intended use and duration. The authority may also consider access arrangements, visual impact and the nature of the materials being stored.
An early planning review can help prevent the cost of installing a structure that later requires changes or formal approval.
Planning Considerations for Temporary Structures
Temporary structures may be assessed against national planning requirements, local planning policies and site-specific constraints.
Location and Planning Restrictions
The location of a temporary structure can significantly affect the planning process.
Additional restrictions may apply where a site is:
- Within a conservation area
- Near a listed building
- Located in the Green Belt
- Subject to heritage considerations
- Within a protected landscape
- Affected by local planning conditions
These constraints do not necessarily prevent development, but they may require a more detailed planning strategy.
Planning Build reviews relevant planning policies and site constraints to identify potential issues before an application is submitted.
Design and Visual Impact
Even when a structure is temporary, its design and appearance may be important.
The planning authority may consider the following:
- Height and scale
- External materials
- Colour and appearance
- Position within the site
- Visibility from public areas
- Relationship with nearby buildings
Clear architectural drawings can help explain the proposal and demonstrate how it will fit within the surrounding environment.
Planning Build’s design team can prepare plans that support the planning application while also considering the practical needs of the project.
Impact on Neighbours
A temporary structure may affect nearby residents and businesses through:
- Loss of light
- Loss of privacy
- Increased noise
- Increased activity
- Visual impact
- Overshadowing
- Changes to access
Addressing these matters early can help strengthen an application and reduce the risk of objections.
Highways, Access and Parking
Temporary structures that attract visitors or increase operational activity may affect local roads and access arrangements.
The local authority may consider the following:
- Vehicle movements
- Pedestrian safety
- Delivery access
- Parking provision
- Emergency access
- The effect on nearby roads
These issues may be particularly important for event venues, schools, commercial units and public-facing developments.
How Planning Build Supports Temporary Structure Projects
Planning Build provides end-to-end support for clients considering temporary structures.
Our services can include:
- Initial planning advice
- Site feasibility assessments
- Planning policy reviews
- Development strategy
- Architectural design
- Planning drawings
- Planning statements
- Design and access documentation
- Planning application preparation
- Application submission
- Communication with the local planning authority
- Support with planning conditions
- Advice following a refusal
Where an application is required, our Planning Application service can help prepare and manage the submission.
A strong planning application should clearly explain:
- Why the temporary structure is required
- How the proposed use supports the site
- How long the structure will remain in place
- How it will be installed and removed
- How potential impacts will be managed
- Why the proposal is appropriate for the location
Planning Build takes a policy-driven approach to planning applications and helps clients identify potential concerns before submission. The company’s planning process includes an initial call, planning research, expert consultation and a written assessment of feasibility, risks and recommended next steps.
Why Professional Planning Advice Matters
Temporary structures can appear simple because they may be portable or designed for short-term use. However, planning requirements can become more complex when issues such as land use, site restrictions, duration, design and local policy are involved.
Professional advice can help you:
- Understand whether planning permission may be required
- Identify planning constraints before spending money
- Choose the correct planning route
- Prepare accurate plans and supporting documents
- Address potential local authority concerns
- Reduce avoidable delays
- Improve the quality of the planning submission
Planning Build provides practical advice tailored to the specific site and proposal. Rather than applying a general answer to every project, our team assesses the development in context and recommends an appropriate strategy.
What Happens If Planning Permission Is Refused?
A planning refusal does not always mean that a temporary structure project cannot proceed.
The reasons for refusal should be reviewed carefully to determine whether the proposal can be amended, supported by additional evidence or challenged through an appeal.
Planning Build’s Planning Appeal service provides strategic support for clients responding to refused applications. The service includes appeal strategy, written representations and evidence-based arguments that address the reasons for refusal.
The most appropriate next step will depend on the planning decision, the strength of the policy case and the specific constraints affecting the site.
Frequently Asked Questions About Temporary Structures
What is considered a temporary structure?
A temporary structure is generally a building, installation or construction intended to remain in place for a limited period. Examples include marquees, portable offices, temporary classrooms, site cabins and modular buildings.
Do all temporary structures require planning permission?
No. Some temporary structures may not require planning permission, but the answer depends on the proposed use, duration, size, location and planning circumstances of the site.
Does a portable structure need planning permission?
A structure being portable does not automatically mean that planning permission is unnecessary. The local authority may still assess its use, duration and impact.
How long can a temporary structure remain in place?
The permitted duration depends on the type of development, applicable planning rules and any planning permission or conditions affecting the site. There is no single time limit that applies to every temporary structure.
Do modular buildings require planning permission?
Modular buildings may require planning permission depending on their size, location, intended use and duration. The fact that a building is manufactured off-site or can be moved does not automatically remove planning requirements.
Can Planning Build manage the entire planning process?
Yes. Planning Build can provide planning advice, assess feasibility, prepare architectural drawings, submit planning applications and liaise with the local planning authority throughout the process.
Get Expert Advice for Your Temporary Structure
Temporary structures can provide flexible and cost-effective solutions for events, education, construction, commercial operations and additional space. However, understanding the planning requirements before installation is essential.
Obtaining the right advice at the beginning of a project can help identify risks, reduce unnecessary expenditure and create a clearer route towards approval.
At Planning Build, we support clients through every stage of the planning process—from early feasibility advice and planning strategy to architectural design, application preparation and project delivery.
If you are considering a temporary structure, explore our Planning Permission and Planning Application services. You can also visit our Services page to learn more about our planning, design and build support.
Contact Planning Build today to discuss your project and receive tailored advice on the planning requirements for your proposed temporary structure.
