Kent · TN13
Conversions in Sevenoaks
A property conversion changes the use of existing space — such as a loft, garage, barn or outbuilding — into new habitable accommodation, and typically involves structural alterations, insulation upgrades, new services, and Building Regulations approval, with planning permission or listed building consent needed in some cases.
In Sevenoaks, that covers Riverhead, Dunton Green, Weald, Bat & Ball, Kippington. Sevenoaks is an affluent Kent town close to the Kent Downs National Landscape and extensive Green Belt land, with a historic core, well-established residential streets of substantial detached and semi-detached houses, and strong rail links into London.
Coverage
Areas we cover in Sevenoaks for conversions
Property styles in Sevenoaks
Sevenoaks has a significant stock of larger detached and semi-detached Victorian, Edwardian and interwar houses on generous plots, which frequently suit substantial rear or double-storey extensions and outbuilding conversions.
Planning considerations
Sevenoaks District Council is the local planning authority. A large proportion of the district is designated Green Belt, and parts fall within the Kent Downs National Landscape, both of which place additional constraints on new structures and extensions beyond normal permitted development limits.
How it works
Our conversions process
- 01
Feasibility survey
Checking head height, structural capacity, access and services for the proposed conversion.
- 02
Design and approvals
Preparing drawings and securing planning permission (where required) and Building Regulations approval.
- 03
Structural works
Strengthening floors, forming stairs or openings, and altering roof structure where needed.
- 04
Insulation and services
Upgrading insulation, and installing or extending electrics, heating and (for loft conversions) fire escape provisions.
- 05
Fit-out
Plastering, flooring, joinery and decoration.
- 06
Completion
Building Control sign-off and handover.
Also in this area
Other services we provide in Sevenoaks
Nearby coverage
Conversions in nearby areas
FAQs
Conversions in Sevenoaks: FAQs
Do you provide conversions across all of Sevenoaks?
Yes, we cover the TN13 postcode area in full, including Riverhead, Dunton Green, Weald, Bat & Ball, Kippington.
Do I need planning permission for a loft conversion?
Many loft conversions fall under permitted development if they stay within volume limits and do not extend beyond the roof plane at the front. Dormers, roof terraces, and conversions on designated land or flats usually need planning permission. We confirm this at feasibility stage.
What head height do I need for a loft conversion?
As a general guide, a minimum ridge height of around 2.2 to 2.3 metres is usually needed for a workable staircase and standing space, though this varies with roof pitch and layout. We measure this on survey before advising on feasibility.
Does Green Belt designation affect extending a house in Sevenoaks?
Green Belt policy applies primarily to new buildings and significant additions that would be disproportionate to the original dwelling, rather than ruling out modest extensions. We assess this against your specific property and its planning history.
Get a quote for conversions in Sevenoaks
Tell us about the property and what you have in mind, and we'll arrange a site visit.
Last reviewed 2026-07-19.