House extension plans and planning permission in Canterbury.

Planning permission in Canterbury: what to expect

Your local planning authority is Canterbury City Council, and it takes design seriously. The district has 97 conservation areas, and the city centre includes the World Heritage Site made up of Canterbury Cathedral, St Augustine's Abbey and St Martin's Church. If your home sits in or near a conservation area, the council will look closely at materials, rooflines and how an extension reads from the street.

Two local quirks catch people out:

• Article 4 directions. The council has an Article 4 direction covering around 1,200 non-listed buildings, plus 42 further Article 4(2) directions across Whitstable, Herne Bay and rural parts of the district. Where these apply, work that would normally be permitted development needs a full planning application instead.
• The Local Plan. The current Canterbury District Local Plan was adopted in 2017, and the council is preparing its replacement. Householder applications are judged against the adopted plan's design policies, so it pays to have drawings prepared with those policies in mind.

In England, councils aim to decide householder applications within eight weeks, though conservation area cases can take longer if the conservation officer is consulted. And one thing you probably don't need to worry about: the Stodmarsh nutrient neutrality rules that affect new-build housing in the district apply to new dwellings, not to a typical home extension.

Our work around Canterbury

Recent projects in the villages east of the city include:

• Wickhambreaux — a single-storey rear extension of around 40 square metres, adding a bedroom, bathroom and orangery-style living space, with a roof lantern, bifold doors onto the garden and light green cladding over block construction.
• Littlebourne — a 5m by 4m flat-roofed lounge extension, zinc clad with structural steelwork, where we prepared the building regulations drawings and structural details for building control approval.

Beyond the district, we've completed projects across east Kent, from Westgate-on-Sea to Ashford, so the local context is familiar ground.

House extension plans in Canterbury

Whether it's a rear extension, a side return or a wraparound, we produce everything Canterbury City Council needs to say yes: a measured survey using our 3D Home Scan, existing and proposed planning drawings, building regulations drawings, structural calculations, and the application itself — submitted on your behalf, with council correspondence handled for you.

Loft conversions in Canterbury

Loft conversions follow the same path. Many fall under permitted development, but in a conservation area or under an Article 4 direction the rules tighten, and dormer design and rooflight positions need real care. Where permitted development does apply, we can apply for a lawful development certificate so you have it in writing.

Fixed prices, and a guarantee

Every Arkiplan project is quoted upfront at a fixed price — packages start from Price confirmed in your proposal, with monthly payment options. There's a 30-day design guarantee: if you feel the proposal isn't right for you, you can cancel. And the track record backs it up — a 94% approval rate for planning and lawful development applications, across 2,000+ completed projects in England and Wales.

Start your Canterbury project

Tell us what you're hoping to do — an extension, a loft, a reworked layout — and we'll give you a fixed quote and a clear picture of what Canterbury City Council will want to see. No jargon, no hourly rates, no surprises.