Extensions to a single dwelling | Building control fees | Sevenoaks District Council

Building control fees

Extensions to a single dwelling

Limited to work not more than three storeys above ground level

Extensions and conversions

Code

Extensions

Full Plans application fee

Full Plans inspection fee

Building Notice fee

Regularisation fee

D01

Single storey extension with a floor area less than 10m²

£148

£371

£519

£649

D02

Single storey extension with a with floor area between 10m² and 40m²

£222

£519

£741

£927

D03

Single storey extension with floor area between 40m² and 100m²

£297

£593

£890

£1,112

D04

Multi-storey extension (i.e. some part 2 or 3 storeys in height) and floor area not exceeding 40m²

£297

£593

£890

£1,112

D05

Multi-storey extension (i.e. some part 2 or 3 storeys in height) and floor area 40m² to 100m²

£297

£667

£964

£1,241

D06

Extension comprising solely a garage, carport or store with a floor area less than 60m²

£148

£371

£519

£630

D07

Detached non-habitable domestic building with a floor area less than 60m²

£148

£371

£519

£649

Conversions

Code

Conversions

Full Plans application fee

Full Plans inspection fee

Building Notice fee

Regularisation fee

D08

Loft conversions with a floor area less than 40m²

£297

£593

£890

£1,112

D09

Loft conversions with a floor area between 40m² & 100m²

£297

£667

£964

£1,241

D10

Conversion of a garage to a habitable room

£148

£272

£420

£525

Multiple work reductions

  1. Where more than one extension, or an extension and a loft conversion is proposed and the works are carried out concurrently, the individual fees should be combined and reduced by 30%.
  2. Where domestic alterations up to £15,000 are to be carried out at the same time as work described in codes D01 – D09 above, the charge payable in Table C can be reduced by 30%.

If our standard charges do not cover your proposal, please ask us for a building control quote.

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