How Much Does Planning Permission Cost in the UK?

Planning permission sits at the heart of almost every significant building project in the UK, yet many homeowners are caught off guard by the total cost. The council fee is just one piece of the puzzle. Add in architect drawings, planning consultants, ecological surveys and appeal costs and the bill can be several times what you first expected.

This guide breaks down every realistic cost you are likely to face in 2026, from the statutory application fee through to the professional fees that councils never mention. Whether you are adding a rear extension, converting a barn or building a new home, these figures will help you budget honestly from the start.

Statutory Application Fees in England (2026)

The Planning Fee Regulations set the mandatory fees payable to your local planning authority (LPA). England saw significant fee increases in December 2023 and these figures remain in force for 2026. The fee is non-refundable whether or not permission is granted.

Note that Lawful Development Certificates (LDCs) are a popular alternative to full planning permission when you believe your project qualifies as permitted development. The fee is the same as a householder application but granting an LDC gives you legal certainty without requiring full planning consent.

Planning Permission Fees in Scotland and Wales

Planning fees are devolved, so Scotland and Wales operate their own fee schedules. Both differ meaningfully from England, particularly for larger schemes.

Northern Ireland operates under its own planning system through the Department for Infrastructure. Householder application fees in Northern Ireland are broadly similar to England at around £258, though the fee schedule has its own categories. Always check directly with your local Planning Office before submitting.

Architect and Drawing Fees

A council will not process your application without scaled plans, a site location plan and, for most projects, detailed elevation drawings. Unless you have professional design skills, you will need to hire someone to prepare these. This is often the single largest cost in a residential planning application.

• Simple outbuilding or garage: Basic drawings prepared by an architectural technician typically cost £400 to £900, sufficient for most straightforward permitted development or householder applications.
• Single-storey rear extension: Expect to pay £600 to £1,500 for a full set of planning drawings including floor plans, elevations and a site plan.
• Two-storey or wrap-around extension: More complex geometry and additional drawings push costs to £1,000 to £2,500.
• Loft conversion: Structural complexity means drawings often cost £800 to £2,000, especially if structural engineer input is also needed.
• New build single dwelling: Full planning drawings for a self-build house range from £2,000 to £6,000 depending on complexity and the architect's scope.
• Commercial or mixed-use development: Fees vary enormously. A modest change-of-use application might cost £1,500 to £4,000 in professional fees; a larger scheme with multiple consultants could reach £20,000 or more.

Many architectural practices charge a percentage of the build cost rather than a fixed fee. For planning only, this is typically 2% to 5% of the estimated build cost. Always agree the scope in writing before work begins and confirm whether the fee covers resubmission if the council requests amendments.

Planning Consultant Fees

A planning consultant is not the same as an architect. They are specialists in planning policy who manage your application strategically, negotiate with officers and advise whether a scheme is likely to succeed. They are most valuable on applications that carry any complexity or sensitivity.

• Initial planning appraisal: A written opinion on whether your project requires permission and its likely chances costs £200 to £600 depending on complexity.
• Householder application management: Overseeing a straightforward extension application, including pre-application advice and submission, typically costs £500 to £1,500.
• Complex or contentious applications: New builds in sensitive areas, change-of-use schemes or applications near listed buildings routinely attract consultant fees of £2,000 to £8,000.
• Appeal management: If your application is refused and you want to appeal, a consultant will typically charge £2,000 to £10,000 depending on the appeal route (written representations being the cheapest, public inquiry the most expensive).
• Hourly rates: Chartered planning consultants typically charge £80 to £200 per hour. Senior partners at larger firms can charge £250 or more.

Pre-Application Advice Costs

Most councils offer a paid pre-application advice service that lets you discuss your scheme with a planning officer before submitting a formal application. This can save significant money by identifying problems early, though the service itself has a cost.

• Householder pre-application advice: Most councils charge £50 to £200 for a written response to a householder query. Some offer free advice for very simple extensions.
• Minor developments pre-application: Written advice on small commercial or multi-unit residential schemes typically costs £200 to £600.
• Major development pre-application: Larger schemes attract fees of £1,000 to £5,000 or more for a formal pre-application meeting and written report.

Pre-application advice is not binding, but it significantly reduces the risk of a refused application and the associated wasted fees. For any project with genuine uncertainty, the cost is almost always worthwhile.

Surveys and Additional Reports

Depending on the site and the nature of your project, the planning authority may require specialist reports to accompany your application. These are commissioned and paid for by the applicant.

• Bat survey: Required when buildings are being altered or demolished and bats may be present. A basic emergence survey costs £400 to £1,200; a full survey programme across multiple seasons can cost £2,000 to £5,000.
• Arboricultural report: If trees are close to your development a tree survey and arboricultural impact assessment costs £400 to £900.
• Flood Risk Assessment: Required for sites in flood zones 2 or 3. A basic residential FRA costs £500 to £1,500; a detailed hydraulic modelling report can cost £3,000 or more.
• Ecological survey: A Phase 1 habitat survey costs £400 to £900. If protected species are identified further surveys cost an additional £600 to £3,000.
• Heritage or design statement: Required near listed buildings or in conservation areas. Consultant-prepared statements cost £500 to £2,000.
• Transport statement: Required for larger developments generating significant vehicle movements. Basic reports cost £1,500 to £5,000; full Transport Assessments significantly more.
• Contaminated land report: A Phase 1 desk study costs £500 to £1,500; a Phase 2 intrusive investigation can cost £3,000 to £15,000 depending on site size and contamination complexity.

Total Cost Scenarios: What to Budget

Pulling all the elements together, here is what realistic total budgets look like for common project types in 2026. These figures include the statutory fee, professional drawings and a planning consultant where applicable, but exclude any required surveys unless specified.

These are honest mid-range estimates. Sensitive sites, conservation areas and schemes requiring multiple specialist reports will sit at the top of these ranges or beyond. Conversely, simple applications in straightforward locations can often be handled at the lower end if you are organised and use an architectural technician rather than a full architect practice.

Ways to Reduce Your Planning Costs

• Use permitted development rights: Many common projects including most rear extensions up to 4 metres on detached houses do not need planning permission at all. A Lawful Development Certificate confirms this legally for the same fee as a full application.
• Invest in pre-application advice: Paying £100 to £200 to speak with a planning officer before submitting can prevent a refused application and a second round of fees.
• Choose an architectural technician rather than a full architect: For straightforward projects, a technician can prepare perfectly adequate planning drawings at a lower hourly rate than a registered architect.
• Bundle surveys early: Commissioning an ecological or bat survey at the start of the project rather than being asked for one mid-application avoids delays and resubmission costs.
• Submit a complete application first time: Invalid applications are returned and you lose time. Use the council's validation checklist carefully before submitting.
• Consider planning portals carefully: The Planning Portal charges a service fee on top of the statutory application fee. Some councils accept direct applications free of this charge. Check your LPA's website first.