House Extension Planning Permission in
Canterbury
Extension rules in Canterbury aren’t as simple as yes-or-no on planning permission. Depending on size, position, and whether your property sits in a conservation area, your project could be permitted development, need Prior Approval, need full permission, or involve a genuine mix of all three. We work out exactly which for your specific Canterbury project.
Get Your Free Desktop StudyWhat Your Canterbury Extension Actually Needs
Permitted development rules for extensions are genuinely more generous than most people in Canterbury expect, but they’re also easy to misjudge. A single-storey rear extension within the standard depth limits (usually 3-4 metres, or up to 6-8 metres under Prior Approval) can often proceed without a full planning application – but ‘often’ isn’t ‘always’, and getting it wrong means enforcement action, not just a delay.
Side extensions, anything affecting a conservation area, listed buildings, and properties where permitted development rights have already been used or restricted by condition all change the picture in Canterbury. Our free desktop study checks your specific circumstances rather than assuming the general rule applies.
Our free desktop study for Canterbury projects checks your property’s planning history, current permitted development allowance, and any local restrictions before recommending a route – so you know exactly what’s needed before spending anything further.
Free Desktop Study
Confirms what your project actually needs
PD Or Planning
We check which route genuinely applies
Council-Ready
Applications built to be approved
Fast Turnaround
Applications moved along quickly
How We Help in Canterbury
For Canterbury properties, we start by working out the actual picture – existing extensions, conservation status, and exactly what your proposed extension would involve – before recommending anything.
Once that’s clear, your Canterbury project gets exactly what it needs, whether that’s confirmation permitted development already covers it, a Prior Approval submission, or a full application prepared to what this specific council expects.
Once anything’s submitted for a Canterbury project, we follow it through properly – staying in contact with the council and responding to queries as they arise.
Getting Canterbury Extensions Right From The Start
Generic online guidance can’t account for Canterbury’s local specifics or your property’s individual planning history. We check the real picture before recommending anything, rather than applying a one-size-fits-all rule.
We’d rather tell you honestly that your Canterbury extension doesn’t need planning permission at all than take a fee for an application that was never required. That honesty is the whole point of the desktop study.
Rather than a single yes-or-no verdict, we break down exactly what applies to each element of your Canterbury extension, since larger or more complex projects often genuinely mix permitted development with elements that need permission.
Get Your Free Desktop Study
House Extension Planning Permission FAQs for Canterbury
What are the permitted development limits for an extension in Canterbury?
Standard single-storey rear extensions can usually go up to 3 metres (terraced/semi-detached) or 4 metres (detached) without planning permission, with larger extensions up to 6-8 metres possible under the Prior Approval route – your desktop study confirms exactly what applies to your Canterbury property.
Is Prior Approval faster than planning permission in Canterbury?
Prior Approval is a faster route (42 days rather than the usual 8 weeks) for larger single-storey rear extensions that exceed standard permitted development limits but stay within extended ones – your desktop study checks whether your Canterbury project qualifies.
Does living in a conservation area affect my Canterbury extension?
Yes – conservation area status in Canterbury typically removes some permitted development rights, particularly for side extensions and cladding, meaning full planning permission is more often required.
Can I still use permitted development if my Canterbury house has been extended before?
Possibly not – permitted development allowances are cumulative, so a previous owner’s extension in Canterbury may have already used up some or all of what’s available to you now.
Is it common for Canterbury projects to need a mix of routes?
It’s a genuinely common outcome for bigger Canterbury projects – our desktop study breaks down each element rather than giving one blanket answer for the whole extension.
Is the initial assessment free for Canterbury projects?
Yes, the desktop study is free for Canterbury enquiries – you’ll know exactly what your project needs before committing to anything further.