Permitted Development checks
We review your property, proposed extension size, height, boundaries and local restrictions to confirm whether PD rights may apply.
London planning hub
Planning Hub – Permitted Development Extensions London
Extend your London home with clear planning advice, compliant drawings and expert support for Permitted Development, Lawful Development Certificates and Building Regulations.
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Permitted development explained
Planning help for London home extensions
If you want to extend your London home without the stress of a full planning application, Permitted Development rights may give you a faster route.
Planning Hub helps homeowners understand what is possible, what approval route is safest and what drawings or certificates are needed before building work begins.
We support single-storey rear extensions, side extensions, loft conversions, garage conversions and wider home improvement projects across London.
- Permitted Development checks before design or construction
- Planning drawings prepared for London council submissions
- Lawful Development Certificate applications for legal peace of mind
- Building Regulations and structural calculation coordination
What we help with
Permitted development extension services
We combine planning advice, design drawings and council application support so your extension starts on the right legal foundation.
Planning permission advice
If your project falls outside PD limits, we advise on the strongest planning route and help prepare your application.
Lawful Development Certificates
We prepare and submit LDC applications so you have formal council confirmation that your extension is lawful.
Architectural planning drawings
Our drawings clearly show the proposed extension, layout, elevations and details required for council review.
London-specific restrictions
We check conservation areas, Article 4 directions, listed buildings, flats and other local planning constraints.
Building Regulations support
We coordinate the next stage after planning, including building control, structural calculations and technical compliance.
London rules
How permitted development works in London
Permitted Development allows some house extensions to be built without a full planning application, but the rules are strict. Size, height, boundary distance, materials, roof form and property type all matter.
Many homeowners still apply for a Lawful Development Certificate because it gives written proof from the council that the work is lawful. This can protect you during future sale, remortgage or neighbour queries.
- Single-storey rear extensions may fall under PD if they meet size and height limits
- Flats, maisonettes and listed buildings usually have limited or no PD rights
- Conservation areas and Article 4 directions can restrict what you can build
- Building Regulations approval is still required for most extensions
Our process
Our Planning Hub process
We keep the process clear from the first conversation, so you understand whether you need Permitted Development, a Lawful Development Certificate or a full planning application.
Free consultation
We discuss your extension idea, property type, location and the planning route that may apply.
Site and restriction review
We check boundaries, conservation status, Article 4 directions, listed status and council requirements.
Bespoke design drawings
We prepare drawings that show the proposed extension clearly and support the correct application route.
Application preparation
We prepare the Lawful Development Certificate or planning application documents and submit to the council.
Council liaison
We monitor progress, respond to queries and keep you updated throughout the decision period.
Next-stage support
Once planning is clear, we help coordinate building regulations, structural calculations and build preparation.
Why choose Planning Hub
Clear advice before costly mistakes happen
Planning mistakes can delay your extension, create enforcement risk and cause problems when you sell your home. Our role is to check the rules early, prepare the right drawings and guide your application properly.
- Expert planning advice for London extensions and PD rights
- Lawful Development Certificate support for legal certainty
- Planning drawings prepared for council submission
- Joined-up support with design, build and project management
Benefits
Benefits of permitted development extensions
When your project qualifies, Permitted Development can make your London extension simpler, faster and more predictable.
Faster route
PD projects can avoid a full planning application when the proposal meets the legal limits.
More certainty
An LDC confirms that your extension is lawful before you commit to major building work.
Lower risk
Professional checks reduce the chance of enforcement, redesigns or rejected applications.
Better drawings
Clear planning drawings help councils, builders and building control understand the proposal.
Local knowledge
London boroughs can have different constraints, especially in conservation areas.
End-to-end support
We can link planning with design, building regulations and construction delivery.
Related services
From planning advice to build-ready approval
Planning Hub can work alongside our wider home extension services, including design and build, structural calculations, building regulations and project management.
This means you do not have to deal with separate consultants for every stage. We keep the route practical, compliant and focused on getting your extension ready to build.
Questions homeowners ask
Permitted development extensions London FAQs
Do I need planning permission for my home extension in London?
Not always. Many small extensions fall under Permitted Development rights, but the rules depend on your property type, extension size, height, location and any local restrictions.
What counts as a Permitted Development extension?
Typical PD projects can include some single-storey rear extensions, loft conversions and garage conversions. Two-storey extensions and larger schemes usually need planning advice or full permission.
How far can I extend under Permitted Development?
It depends on the property and proposal. Limits vary for rear, side and roof extensions, and prior approval may be needed for larger rear extensions. We check your exact limits before drawings begin.
Do flats or listed buildings have Permitted Development rights?
Flats and maisonettes generally do not benefit from householder PD rights. Listed buildings and properties in conservation areas may have extra restrictions and often need full planning advice.
What is a Lawful Development Certificate?
A Lawful Development Certificate is council confirmation that your proposed extension is lawful. It is not always compulsory, but it is strongly recommended for peace of mind and future property sale.
How long does a Permitted Development application take?
Many council certificate or planning decisions are handled within around 8 weeks, depending on the application type and borough workload. We monitor the submission and keep you updated.
Can you help with Building Regulations approvals?
Yes. Even if planning permission is not needed, most extensions still require Building Regulations approval for structural safety, insulation, drainage, fire safety and other technical standards.
Start with clear advice
Request a free Planning Hub consultation
Tell us about your proposed extension and we will advise whether Permitted Development, a Lawful Development Certificate or a full planning application is likely to be the right route.
- No-obligation first conversation
- Advice on PD rights, planning permission and council applications
- Support with drawings, LDCs, building regulations and next steps
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Complete the form and our team will contact you to discuss your extension planning route.
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Ready to check your extension planning route?
Speak with our London Planning Hub team about Permitted Development, Lawful Development Certificates, planning permission and Building Regulations support.