Planning Permission in Swindon
Unitary Authority in South West · Last updated April 2026
Swindon is a unitary authority in north Wiltshire, centred on the rapidly growing town of Swindon with its surrounding villages. With 28 conservation areas, no Article 4 directions, and 663 listed buildings, the authority combines a dynamic urban centre with an attractive rural hinterland on the edge of the North Wessex Downs AONB.
The council processes around 1,090 applications annually with an 88.8% approval rate. Swindon's planning landscape ranges from the Victorian railway heritage of the Old Town and the new town estates to the Cotswold-stone villages of the borough's rural parishes.
Homeowners can find guidance on local planning policies in the Swindon Borough Local Plan. With no Article 4 directions and no Green Belt, most residential properties benefit from full permitted development rights outside conservation areas.
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What can I build in Swindon?
| Project type | Likely permitted development | May need planning permission | Likely needs planning permission |
|---|---|---|---|
| Rear extension (single storey) | Only outside conservation areas and Article 4 zones | Properties near boundaries | Conservation areas (28), listed buildings |
| Rear extension (two storey) | Only outside conservation areas and Article 4 zones, if within 3m limit | Check distance to boundary ≥7m | Conservation areas (28), listed buildings |
| Side extension | Detached houses outside protected zones | Semi-detached properties (half-width rule) | Conservation areas (28), listed buildings |
| Loft conversion (dormer) | Houses outside conservation areas | Properties on prominent corners | Conservation areas, listed buildings, flats |
| Loft conversion (Velux/rooflight) | Most of Swindon | Front-facing rooflights in conservation areas | Listed buildings |
| Outbuilding / garden office | Only outside conservation areas and Article 4 zones, if within size/height limits | Large outbuildings covering >50% of garden | Conservation areas (side or front), listed buildings |
| 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 Swindon (internal works) | If changing external appearance significantly | Listed buildings |
This is general guidance based on Swindon's planning constraints. Your specific property may differ — use our free PD checker to get a result tailored to your address.
Permitted development in Swindon
Swindon has a relatively unconstrained permitted development landscape, with no Article 4 directions and no Green Belt. The 28 conservation areas — covering Old Town, the Railway Village, and various rural villages — are the main restrictions on PD rights. Outside these areas, standard permitted development rights apply to the vast majority of Swindon's residential properties, making it one of the more permissive planning authorities in the region for householder extensions and alterations.
What Swindon expects from your project
Local Plan: Swindon Borough Local Plan 2026
Swindon's Local Plan was adopted in March 2015. It focuses growth on the northern development areas of Wichelstowe and the East of Swindon, with a strong emphasis on regenerating the town centre and providing employment in the East Wiltshire corridor.
Emerging / replacement plan
Swindon is preparing a new Local Plan with a plan period to 2040. Issues and Options consultation ran in 2019; a Preferred Options consultation ran in 2022 and the council is working toward a Regulation 19 submission in 2025–2026.
28 conservation areas
Swindon has a high number of conservation areas. Check whether your property falls within one before starting any work — conservation area status significantly restricts what you can do without planning permission.
Conservation areas in Swindon
28 designated conservation areas
Swindon's 28 conservation areas protect a varied collection of historic environments, from the iconic Railway Village — one of the earliest planned workers' housing estates in England — to the Cotswold-stone villages of Wroughton, Chiseldon, and Highworth. Properties within these areas face restrictions on extensions visible from the street, dormer windows, and changes to external materials. The council is particularly protective of the Railway Village's unique heritage character.
Article 4 directions in Swindon
1 Article 4 direction area
Listed buildings in Swindon
There are 663 listed buildings in Swindon. 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 Swindon's conservation team before starting any work on a listed property.
Planning application statistics
Year ending September 2025 | Source: MHCLG planning application statistics
Swindon received 1,091 planning applications and decided 789 in the year ending September 2025. The approval rate of 88.8% 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.
Swindon Borough Council received 1,091 planning applications in the year ending September 2025, with an 88.8% approval rate across 789 decisions. The council processed 441 householder applications. The higher ratio of applications received to decisions may reflect applications being withdrawn or still in progress. Swindon's approval rate is close to the national average.
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 Swindon
Browse what's been approved near you
Seeing what similar projects have been approved near your property can help you understand what Swindon expects in terms of scale, materials, and design. It's also useful for gauging how quickly the council processes applications.
Search planning applications on Swindon'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 Swindon
Housing Delivery Test 2023 measurement | Source: MHCLG
Swindon delivered 2,632 homes against a requirement of 2,710 over the three-year measurement period, giving a Housing Delivery Test score of 97%. This is above the 95% threshold, which means there are no government-imposed consequences for housing under-delivery. Planning applications in Swindon are assessed on their own merits under standard planning policies.
Lawful Development Certificates in Swindon
A Lawful Development Certificate (LDC) is formal confirmation from Swindon 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.
Swindon decided 441 householder applications in the year ending september 2025. Their 8-week performance of 90.9% is below the national average of 93%, so LDC applications may take longer than the 8-week target. LDC applications follow the same 8-week statutory determination period as householder planning applications.
How to apply for an LDC in Swindon
You can apply for a Lawful Development Certificate through the Planning Portal or directly through Swindon'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
Swindon 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 Swindon.
Pre-application advice in Swindon
Swindon offers a pre-application advice service.
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.
Think your project might be permitted development?
Check in 2 minutes with our free tool — no sign-up needed.
Check your PD rights now →Swindon Borough Council offers a paid pre-application advice service. Householder enquiries from around £100. Submit requests through the council's planning portal.
Planning fees and timelines in Swindon
| 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 Swindon and may change. Building regulations fees are separate — see the building control section below.
Building regulations in Swindon
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 Swindon is provided by Swindon Building Control. You can also use a private approved inspector instead of the council's service.
Building control contact
Swindon Borough Council Building Control or approved private inspectors.
Swindon planning department
Your building project checklist for Swindon
- Check if your property is in a conservation area — Swindon has 28 conservation areas. Use our free checker or see the list above.
- Check for Article 4 directions at your address — Swindon has 1 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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