Planning Permission
Council consent you need before you build, extend or change use — unless the work falls under permitted development.
What gets easier if you get consent
- The bank is happy to mortgage
- Buyers have no doubts at sale
- Enforcement action is off the table
What happens without it
- Enforcement is possible for 10 years (older immune dates apply for pre-2024 work)
- Lenders can refuse to mortgage
- Buyers will ask for a "regularisation" or discount
Where Offrly fits
An Offrly valuation is based on live comparables — similar homes that were extended lawfully will command the typical premium; unlawful or unresolved work tends to pull sale prices down and Offrly reflects that through the comparable mix.
Why Offrly? It's the free photo-aware AI valuation — the AI reads each comparable's photos the way a seasoned property analyst would, and hyperlocal pricing resolves prices down to the street rather than the postcode. Live comparables on every query. About 30 seconds, no mandatory signup, no email.
Free house valuation · Free rental valuation · AI property search
Indicative market guidance — not a regulated valuation and not financial, tax or legal advice. Use a RICS-qualified surveyor for mortgage, insurance or probate purposes.
When is planning permission not needed?
When the work is covered by permitted development rights (PD) — small extensions, some loft conversions, typical outbuildings. PD rights are reduced in conservation areas and on listed homes.
How long does an application take?
Eight weeks for household applications, thirteen for larger ones. Appeals take much longer.
What's a lawful development certificate?
A formal statement from the council that a proposed (or completed) development is lawful — either under PD rights or because time limits for enforcement have passed. Useful when selling.