Planning Permission in St. Helens
Metropolitan District in North West · Last updated April 2026
St Helens is a metropolitan borough in Merseyside known for its industrial heritage — particularly glass-making, with the Pilkington legacy still central to the town's identity. The borough also encompasses the historic market towns of Newton-le-Willows and Rainford, and extensive Green Belt countryside.
Planning in St Helens is governed by the St Helens Borough Local Plan 2020-2035 (adopted 2022). The borough is experiencing significant change with the regeneration of the town centre, major employment development at Parkside (a nationally significant logistics hub), and new housing on allocated sites.
With 14 conservation areas, 151 listed buildings, and Green Belt, property owners should check designations. The council's excellent 94.7% approval rate and 100% householder decisions in time demonstrate outstanding service.
Planning a project in St. Helens? Start here.
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What can I build in St. Helens?
| Project type | Likely permitted development | May need planning permission | Likely needs planning permission |
|---|---|---|---|
| Rear extension (single storey) | Most of St. Helens outside protected zones | Properties near boundaries or Green Belt fringe areas | Conservation areas (14), listed buildings |
| Rear extension (two storey) | Most of St. Helens outside protected zones, if within 3m limit | Check distance to boundary ≥7m or Green Belt fringe areas | Conservation areas (14), listed buildings |
| Side extension | Detached houses outside protected zones | Semi-detached properties (half-width rule) | Conservation areas (14), listed buildings |
| Loft conversion (dormer) | Houses outside conservation areas | Properties on prominent corners or Green Belt fringe areas | Conservation areas, listed buildings, flats |
| Loft conversion (Velux/rooflight) | Most of St. Helens | Front-facing rooflights in conservation areas | Listed buildings |
| Outbuilding / garden office | Most of St. Helens outside protected zones, if within size/height limits | Large outbuildings covering >50% of garden | Conservation areas (side or front), listed buildings, Green Belt |
| Porch | Most properties if within 3m² and 3m height | Properties near highway boundary | Conservation areas with restrictions, listed buildings |
| Solar panels | Most properties (roof-mounted) | Panels protruding beyond roofline | Listed buildings, conservation areas (if visible from road) |
| Driveway / hard standing | If using permeable surfacing | Non-permeable surfacing over 5m² | Conservation areas with specific restrictions |
| Garage conversion | Most of St. Helens (internal works) | If changing external appearance significantly | Listed buildings |
This is general guidance based on St. Helens's planning constraints. Your specific property may differ — use our free PD checker to get a result tailored to your address.
Permitted development in St. Helens
Permitted development rights in St Helens follow national rules. Properties in conservation areas such as Vulcan Village, Victoria Square, Rainford, and Newton-le-Willows face additional restrictions. Green Belt covers significant areas of the borough. The council's design guidance covers extensions, outbuildings, and alterations, with particular attention to the character of the Victorian and Edwardian housing stock.
What St. Helens expects from your project
Design in St Helens should reflect the borough's varied character. The Victorian and Edwardian housing stock sets the context for most extensions — red brick, slate roofs, and traditional proportions are expected. In the regeneration areas, contemporary design is encouraged. The council pays attention to the impact on neighbouring properties and the streetscene.
Local Plan: St Helens Core Strategy 2026
St Helens Metropolitan Borough Council adopted its Core Strategy in January 2012. The borough's former industrial economy (coal, glass and chemicals) has been transformed through regeneration, with key developments at Haydock Industrial Estate (one of the UK's largest logistics parks), Hardshaw town centre and the former Sutton Manor colliery.
Emerging / replacement plan
St Helens is preparing a new Local Plan. A Regulation 18 Issues and Options consultation ran in 2022 and a Regulation 19 Pre-Submission plan is anticipated in 2025.
94.7% approval rate
St. Helens approves 94.7% of planning applications, above the national average of 86.9%. Well-designed residential applications in this area tend to have a good chance of success.
Conservation areas in St. Helens
14 designated conservation areas
St Helens has 14 conservation areas including the unique Vulcan Village (one of the earliest purpose-built railway workers' housing), Victoria Square in the town centre, the attractive village of Rainford, and the historic town of Newton-le-Willows. The council expects sympathetic materials and design that respects each area's distinctive character — red brick and slate predominate.
Article 4 directions in St. Helens
4 Article 4 direction areas
Listed buildings in St. Helens
There are 151 listed buildings in St. Helens. If your property is listed, permitted development rights are significantly restricted. Most external and many internal alterations will require listed building consent, which is separate from planning permission. Always check with St. Helens's conservation team before starting any work on a listed property.
Planning application statistics
Year ending September 2025 | Source: MHCLG planning application statistics
St. Helens received 520 planning applications and decided 508 in the year ending September 2025. The approval rate of 94.7% is above the national average of 86.9%. Major applications are expected to be decided within 13 weeks, while householder and other non-major applications have an 8-week target. The “in time” figures include decisions made within agreed extensions of time.
St Helens processes around 520 applications per year with an excellent 94.7% approval rate. All major applications are decided within target, and 100% of householder decisions meet the 8-week target — an outstanding performance. The Housing Delivery Test score of 130% indicates healthy delivery.
If your project complies with permitted development rules, you don't need to worry about approval rates — a Lawful Development Certificate is a factual assessment, not a judgment call.
Recent planning applications in St. Helens
Browse what's been approved near you
Seeing what similar projects have been approved near your property can help you understand what St. Helens expects in terms of scale, materials, and design. It's also useful for gauging how quickly the council processes applications.
Search planning applications on St. Helens's portal →Data from MHCLG planning application register. Search for householder applications (H01/H02) to see extensions and loft conversions in your area.
Housing delivery in St. Helens
Housing Delivery Test 2023 measurement | Source: MHCLG
St. Helens delivered 1,451 homes against a requirement of 1,112 over the three-year measurement period, giving a Housing Delivery Test score of 130%. This is above the 95% threshold, which means there are no government-imposed consequences for housing under-delivery. Planning applications in St. Helens are assessed on their own merits under standard planning policies.
Lawful Development Certificates in St. Helens
A Lawful Development Certificate (LDC) is formal confirmation from St. Helens that your project is lawful under permitted development rules. It is not legally required before you build, but it is the only official document that proves your project did not need planning permission. Most solicitors will ask for one when you come to sell, remortgage, or insure your property.
St. Helens decided 280 householder applications in the year ending september 2025. Their 8-week performance of 100% is above the national average of 93%, which suggests LDC applications are likely to be processed on time. LDC applications follow the same 8-week statutory determination period as householder planning applications.
How to apply for an LDC in St. Helens
You can apply for a Lawful Development Certificate through the Planning Portal or directly through St. Helens's website. You will need to submit:
- A completed application form (available on the Planning Portal)
- A site location plan at 1:1250 or 1:2500 scale
- Existing and proposed floor plans and elevations
- A written description of the proposed works and how they comply with the GPDO 2015
- The application fee of £258
St. Helens must issue a decision within 8 weeks. If the application is approved, the certificate is a permanent legal record that the development is lawful. If refused, you can appeal to the Planning Inspectorate or amend your project and reapply.
Need help preparing your LDC application?
Our Permitted Development Certificate Report gives you a full PD eligibility assessment, property constraints check, and application checklist tailored to your address and project — so you can apply with confidence.
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Approval rates, decision patterns, Article 4 directions, fees & timelines, and council-specific tips for St. Helens.
Pre-application advice in St. Helens
St. Helens offers a pre-application advice service. The fee for householder pre-app advice is £60 (householder). You can typically expect a response within 28 days.
Pre-app advice is worth paying for if your project is borderline, your property is in a conservation area, or your home is a listed building.
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Planning fees and timelines in St. Helens
| Application type | Fee | Typical timeline |
|---|---|---|
| Householder planning application | £528 | 8 weeks |
| Full planning permission | £610 per dwelling | 8-13 weeks |
| Lawful Development Certificate (proposed) | £264 | 6-8 weeks |
| Lawful Development Certificate (existing) | £298 | 6-8 weeks |
| Listed building consent | Free | 8 weeks |
| Prior approval | £120 | 56 days |
| Discharge of conditions | £145 per request | 8 weeks |
| Non-material amendment | £44 | 28 days |
Fees are set nationally and correct as of April 2026. Pre-application fees are set by St. Helens and may change. Building regulations fees are separate — see the building control section below.
Building regulations in St. Helens
Building regulations approval is separate from planning permission. Most extensions, loft conversions, and structural alterations need building regs approval even if they don't need planning permission.
Building control in St. Helens is provided by St Helens Council. You can also use a private approved inspector instead of the council's service.
Building control contact
St. Helens planning department
Your building project checklist for St. Helens
- Check if your property is in a conservation area — St. Helens has 14 conservation areas. Use our free checker or see the list above.
- Check for Article 4 directions at your address — St. Helens has 4 Article 4 areas. Check your address.
- Check if your property is listed — search the Historic England list.
- Use our free PD checker to see if your project qualifies as permitted development — Check now.
- Consider a Lawful Development Certificate if PD applies — it protects you when selling. Learn more about LDCs or get your PD Certificate Report.
- Consider pre-application advice if planning permission is needed — see the pre-application section above.
- Check building regulations — most extensions and loft conversions need building regs approval even if they don't need planning permission.
- Check Party Wall Act obligations if building near a boundary — read our Party Wall guide or use our free Party Wall tool.
- Notify your home insurer about planned building work.
- Get at least 3 quotes from builders and check their credentials.
Nearby planning authorities
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