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A loft bedroom with a pitched ceiling, two roof windows and glazed doors opening to a balcony

Loft conversion plans for Camden, £589

Camden’s guidance dropped its hard line against roof extensions on unbroken rooflines, and now gives weight to older and permitted extensions next door. Dormers stay permitted development only outside conservation areas.

  • £439 drawings + £150 survey (£589 total)
  • Neighbour roofs surveyed
  • Conservation area test first

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What do loft drawings cost in Camden?

The total is £589: £439 for drawings and submission and £150 for the survey, with no VAT to add. Camden Council’s fee is paid to the council.

In the Camden loft fee

  • A roof survey with ridge, eaves, parapets and existing neighbour extensions noted
  • Elevations showing even distances to ridge, eaves and side parapets
  • Floor plans, roof plan and sections, existing and proposed
  • Insulation shown in the dormer design, as Camden’s guidance asks
  • Submission to Camden and replies to the case officer
From a tape measure in your loft to a submitted set
From a tape measure in your loft to a submitted set: Roof check, then Roof survey, then Route chosen, then Drawings issued, then SubmittedRoof checkType, ridge height,neighboursRoof surveyRafters, purlins,headroomRoute chosenPermitted,certificate orplanningDrawings issuedAbout 7 days aftersurveySubmittedWe deal with theofficer

Camden’s change on unbroken rooflines

Camden’s guidance says its earlier approach restricted development at roof level on any unbroken roofline, and that the current one is more flexible, giving weight to older extensions and permitted development ones in the immediate context. Not every unbroken roofline has heritage value; in a conservation area the appraisal says which terraces do (Camden Home Improvements CPG).

For example, a Camden terrace where three neighbours already have rear dormers is judged differently from an unaltered row. We survey and photograph what is next door so the case is made in the drawings.

Dormer design points and permitted development

The guidance says dormers fall within permitted development for houses, not flats, outside conservation areas (Class B). A dormer should be subordinate, sit at even distances from ridge, eaves and side parapets, have more glazing than solid, and be of traditional materials such as timber, lead or hanging tiles. Front-slope dormers are likely to be refused where neighbours have none.

Camden has 39 conservation areas. It decided 129 of 212 householder applications inside 8 weeks in the year to June 2026, so a complete first submission matters. Where an Article 4 direction applies, as in some conservation areas, further rights such as rooflights can be removed, so we check the address. The guidance also says an application needs existing and proposed drawings plus the supplementary documents on the council’s website, which is the validation list we draw to.

Camden lofts in numbers

39
Conservation areas in Camden, covering almost 50% of the land area. Camden: Home Improvements Camden Planning Guidance, January 2021
More flexible
Camden’s current approach to roof extensions on unbroken rooflines, giving weight to existing neighbouring extensions. Camden: Home Improvements Camden Planning Guidance, January 2021
2 m
Headroom from the staircase Camden’s guidance asks for in a habitable loft space. Camden: Home Improvements Camden Planning Guidance, January 2021
40 m³ / 50 m³
Permitted roof volume increase: 40 m³ for a terraced house, 50 m³ for other houses. GPDO 2015, Schedule 2, Part 1, Class B: additions to the roof (legislation.gov.uk)
129 of 212
Camden Council householder applications decided within 8 weeks in the year to June 2026, out of all it decided (prior approvals not counted). MHCLG live table PS2, planning application statistics by district, July 2025 to June 2026 (GOV.UK)
£96.97 per m²
The Mayor of London’s CIL in Camden (band 1) for permissions granted in 2026, owed only when a scheme is liable for CIL in the first place. Mayoral CIL: annual rate summary for 2026, Table 1 (Greater London Authority)

Camden loft questions

Can I add a dormer in a Camden conservation area?

Not under permitted development. Camden says dormers are permitted development only outside conservation areas.

Does an unbroken roofline stop a loft?

Not automatically. Camden now weighs existing neighbouring extensions, and the conservation area appraisal says which rooflines matter.

Will Camden allow a front dormer?

Likely not where neighbours have none, says the guidance.

How fast does Camden decide?

It decided 129 of 212 householder cases within 8 weeks last year. We cannot promise a date.

Price your Camden loft

Send the address and a roof photo. We check the area and quote a fixed price.

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