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A bright loft bedroom with sloping ceilings and two skylight windows

Loft conversion drawings in Islington from £625

Highbury, Canonbury, Holloway, Angel and Finsbury Park: 42 conservation areas, some with street-by-street roof schedules, checked before we draw.

£625 £475 drawings + £150 survey (£625 total), no VAT to add

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We check conservation areas and other limits for this address.

In a sentence or two: your plans, and any feedback from the council so far.

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The short answer

Islington has 42 conservation areas, and in several the design guidelines say which individual houses may have a roof extension and which may not. In The Angel, extensions visible from a street or public area are refused unless the house is on a schedule. Islington’s April 2024 list wants a roof plan only where a roof is altered, and keeps fire statements for major schemes. Our fee is £475 drawings + £150 survey (£625 total), no VAT to add; the council’s fee is separate.

Loft conversion drawings

from £625

Drawings
£475
Measured survey
£150
Total you pay
£625
VAT
None to add
  • A measured survey of the roof, the stair and the landing below
  • A check of your house against Islington’s conservation area guidelines and Article 4 directions
  • Existing and proposed floor plans, a roof plan, elevations and sections at 1:50 or 1:100, with a scale bar
  • Photographs, the CIL form and, in a conservation area, the design and access and heritage statements
  • Submission to Islington, an independent check of every sheet and free redraws until approval

£475 drawings + £150 survey (£625 total). A starting fee: we confirm one fixed figure after checking your address. The council’s own fee, where there is one, is paid to the council.

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How an Islington loft job runs

  1. Address check

    We look your house up against the conservation area map and its design guidelines, including any roof schedule that lists it.

  2. Survey

    We measure the roof, stair and floors below, and photograph the roofline from the street and from neighbouring gardens.

  3. Draw to the list

    Drawings printable at 1:100 or 1:50 with a scale bar, never marked “do not scale”, and elevations shown against the adjacent buildings.

  4. Submit and follow

    We submit, answer the case officer and redraw as needed until a decision.

Street-by-street roof rules in Angel and Highbury Fields

Islington’s conservation area guidelines are unusually specific. The Angel guideline says the council may permit traditional roof extensions on the properties in its Schedule 18.2, and otherwise roof extensions visible from any street level or public area will not be permitted. In Highbury Fields, no roof extensions or dormers will be permitted on the properties in Schedule 5.5, and new dormers are refused on the front or side slopes of those in Schedule 5.4.

For example, a house in a Highbury Fields terrace can be treated differently from its neighbour three doors along, depending on which schedule each number appears in. Islington also says it has made article 4 directions in its conservation areas, so we read the guideline and the Article 4 map for your exact address before pricing.

Mansard loft drawings

What Islington’s April 2024 list asks for

Drawings must be to a recognised metric scale, usually printable at 1:100 or 1:50, with a scale bar always included and the words “do not scale” not used. Elevations are shown in the context of adjacent buildings with the make, type and colour of external materials, and a roof plan is asked for “where necessary to show a new roof or alterations to one”.

The list keeps its Fire Statement for all major development applications, so a house loft does not need one, though means of escape must still be clear for Building Regulations. Failure to submit the necessary information means the application is registered invalid, which delays it.

Timing and CIL in Islington

Islington’s own CIL schedule was approved on 26 June 2014 and took effect on 1 September 2014, with residential rates of £300 per square metre in Area A and £250 in Area B before indexation, plus Mayoral CIL in band 1. We do not quote an indexed 2026 figure because we could not read one on the council’s pages.

CIL generally applies from 100 square metres of new floor area, so a loft inside the existing roof is normally outside it.

Loft conversions in Islington in numbers

Questions about loft conversions in Islington

Can I have a loft extension in The Angel?

Only if your house is on the council’s schedule of traditional roof extensions. Otherwise an extension visible from a street or public area will not be permitted.

How do I find out if I am under an Article 4 direction?

Islington has a map layer called Conservation area Article 4. Send us your address and we check it, together with the guideline for your area.

Does a house loft need a fire statement in Islington?

The list requires one for major development applications. We show the escape route on the plans anyway.

Do I pay CIL on a loft in Islington?

Normally not, because CIL generally begins at 100 square metres of new floor area.

Find out what your Islington loft needs

Send the address and a photo of the back of the house. We reply with the route and a fixed fee, from £475 drawings + £150 survey (£625 total).

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