Clear answers to common planning questions
The planning system can be technical, policy-led and site-specific. Our FAQ hub helps homeowners, landowners, architects, developers and community groups understand the key planning issues before deciding the right next step.
Explore planning guidance by topic
Use the dropdown sections below to find the most relevant planning FAQ area. Each section links through to more detailed guidance and related Cedar Planning services.
01
Planning Applications FAQs
For homeowners, architects and developers preparing or managing a planning application.
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Planning Applications FAQs
For homeowners, architects and developers preparing or managing a planning application.
- Do I need planning permission?
- What can be carried out under Permitted Development Rights?
- How long does a planning application take?
- Why are planning applications refused?
- How long does planning permission last?
02
Planning Appeals FAQs
For refused applications where you need to decide whether to appeal, revise or resubmit.
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Planning Appeals FAQs
For refused applications where you need to decide whether to appeal, revise or resubmit.
- When can you appeal a planning decision?
- What are your chances of success?
- How are planning appeals decided?
- How long do planning appeals take?
- What happens if an appeal is dismissed?
03
Planning Objections FAQs
For neighbours, residents and community groups affected by a nearby proposal.
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Planning Objections FAQs
For neighbours, residents and community groups affected by a nearby proposal.
- Can you object to a planning application?
- What counts as a valid planning objection?
- What are material planning considerations?
- Can you object because of loss of light, privacy or overdevelopment?
- What happens after an objection is submitted?
04
Certificates of Lawfulness FAQs
For confirming whether existing or proposed development is lawful.
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Certificates of Lawfulness FAQs
For confirming whether existing or proposed development is lawful.
- What is a Certificate of Lawfulness?
- When is one required?
- How do the 4-year and 10-year rules work?
- What evidence is needed?
- Can a certificate be refused?
05
Local Plans & Planning Policy FAQs
For landowners, developers and communities engaging with emerging planning policy.
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Local Plans & Planning Policy FAQs
For landowners, developers and communities engaging with emerging planning policy.
- What is a Local Plan?
- How do Local Plans affect planning applications?
- What is a Call for Sites?
- How can land be promoted for allocation?
- Can you object to site allocations or planning policies?
06
Planning Use Classes & Change of Use FAQs
For understanding C3, C4, Class E, sui generis uses and change of use issues.
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Planning Use Classes & Change of Use FAQs
For understanding C3, C4, Class E, sui generis uses and change of use issues.
- What are planning use classes?
- What is the difference between C3, C4, Class E and sui generis?
- When does change of use need planning permission?
- How do Article 4 Directions affect use classes?
07
HMOs & Article 4 Directions FAQs
For landlords, investors and property owners dealing with HMO planning controls.
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HMOs & Article 4 Directions FAQs
For landlords, investors and property owners dealing with HMO planning controls.
- What counts as an HMO?
- When is HMO planning permission required?
- Can an HMO be confirmed by a Certificate of Lawfulness?
- Can refused HMO applications be appealed?
- How do Article 4 Directions affect HMOs?
08
General Planning Advice FAQs
For broader questions about planning consultants, statements, appraisals and risk.
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General Planning Advice FAQs
For broader questions about planning consultants, statements, appraisals and risk.
- Why use a planning consultant?
- When should you seek professional planning advice?
- What is a planning statement?
- What does a site appraisal involve?
- How can planning advice reduce project risk?
Need advice on a specific planning issue?
FAQs are helpful, but planning decisions depend on site context, local policy, planning history and the strength of the supporting case. Cedar Planning provides clear, practical and policy-led advice across England.