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Hackney, London

Velux loft conversion drawings in Hackney

Velux loft conversion drawings in Hackney start at £695 including VAT. Hackney writes a number into its guidance: new or replacement rooflights should not exceed 600 mm in width, and odd sizes or positions will be resisted. We build the roof layout around that figure from the first sketch.

From £695 (VAT included)

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  • Fixed fees, VAT included

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    Architectural model of a four-storey London stucco townhouse in its terrace, with a portico, area railings, sash windows, a cornice and chimney stacks
    The house as it stands: four storeys over a lower ground floor.Existing Proposed worksAn illustrative model, built for this page.

    How we work on velux loft conversion drawings

    Nine steps from first call to approval.

    The same model cut through the middle: every floor, the stair, the chimney breasts, the new mansard, rear extension and basement in section
    Section through the model: every floor on one datum.

    1. Enquiry and constraints check

      We check the property against conservation areas, listed status, Article 4 directions, tree preservation orders, flood zone and planning history. We choose the right route and send a fixed quote.

    2. Measured survey

      We survey the house on one datum: rooms, levels, boundaries, drains, trees and the neighbours' windows that the 45° and 25° tests depend on.

    3. Design options

      We model the house in Revit and show you options in 3D and plan, with the planning strategy and the precedents in your street.

    4. Design frozen

      You choose an option in writing. Nothing changes after this without your say.

    5. Independent check

      A second chartered technologist checks every sheet against the council's validation checklist and the policy. A senior review signs it off before anything is submitted.

    6. Submission

      We prepare the forms, certificates, fee and documents and submit through the Planning Portal.

    7. Officer liaison

      We answer the planning officer and make any amendments within five working days, at no charge until approval.

    8. Building regulations

      Technical drawings are coordinated with the structural engineer's calculations, the drainage and the planning conditions.

    9. Approval and hand-over

      Building control approval, then a next-steps pack covering the commencement notice, party wall timing and CIL.

    Free redraws until approval. Every drawing set is checked independently, and the checker is never the person who drew it.

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    Brick cottage with a tiled roof, chimneys and a front dormer window

    Hackney's rooflight limit and what it does to the layout

    The council's Residential extensions and alterations SPD sets the limit at 600 mm for a rooflight, and it expects regular sizes and tidy positions.

    A width limit changes how a loft is lit. Instead of one broad unit over the bed, you plan two or three narrow ones, spaced to match the rafters, and each must still meet the escape rule: Escape window: unobstructed openable area at least 0.33 m², at least 450 mm high and 450 mm wide, bottom of opening no more than 1100 mm above floor. We draw each opening on the roof plan with its clear dimensions so you can see whether the light will be enough.

    Spacing matters too. Units set in a line at the same height read as a deliberate pattern, and the officer reads the pattern rather than the count.

    If a client wants one large unit for the view, we show the narrow alternatives side by side on the elevation. That comparison usually settles the question without a pre-application conversation, and it keeps the submission clear of the resisted sizes.

    Rear view of brick terraced houses in London with slate roofs and chimney stacks along the shared roofline

    Local figures for Hackney

    Figures with their unit, period and source
    MeasureValuePeriodSource
    New or replacement rooflights should not exceed 600 mm in width, and irregular sizes or positions will be resisted.600 mm—drive.google.com, Residential Extension and Alterations SPD 2025, p.56, Design principles: roof lights
    Article 4 directions77 Article 4 directions published by the council—planning.data.gov.uk
    Article 4 direction areas197 Article 4 direction area polygons published by the council—planning.data.gov.uk
    Conservation areas37 named conservation areas published by the council—planning.data.gov.uk
    Listed building entries555 list entries (Historic England, within the LPA boundary)—planning.data.gov.uk
    Households living in a house18.8 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.uk
    Householder decisions415 decisions1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications granted84.6 %1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    GPDO Sch 2 Pt 1 Class C, para C.1(b)Roof alterations (e.g. rooflights) may not protrude more than 0.15 m beyond the roof plane—legislation.gov.uk
    Approved Document B Vol 1, 2019 ed. incl. 2026 amendments, para 2.10Escape window: unobstructed openable area at least 0.33 m², at least 450 mm high and 450 mm wide, bottom of opening no more than 1100 mm above floor—gov.uk

    A blank value means the figure has not been published, not that there are none. Check your own address with the council.

    Councils bordering Hackney

    Householder applications by street in Hackney

    Streets in Hackney with the most householder applications, and the share approved
    StreetApplicationsApproved
    Winston Road5288%
    Osbaldeston Road3969%
    Rushmore Road3783%
    Forburg Road3165%
    Olinda Road3171%
    Durlston Road3089%
    Powerscroft Road3093%
    Brooke Road2874%
    Elderfield Road2580%
    Glyn Road25100%
    Kyverdale Road2576%
    Lavender Grove2477%
    Alkham Road2370%
    Clifden Road2391%
    Culford Road2376%
    Counts of householder applications by street; no individual applications are shown. Streets with fewer than five applications are left out.Source: GLA Planning London Datahub, householder applications, all years held. Contains public sector information licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2026.
    Loft enlargement in section: the permitted development limitsExtra roof volume allowed: 40 m³ (terrace house) / 50 m³ (any other house) additional roof volume. Set-back from the eaves: Original eaves maintained; enlargement set at least 0.2 m from the eaves measured up the roof slope, so far as practicable (not required for hip-to-gable or roofs joining a rear/side extension). Height limit: No part higher than the highest part of the existing roofABC

    Loft enlargement in section: the permitted development limits

    A dormer on the rear slope, with the limits that decide whether it needs planning permission.

    A · Extra roof volume allowed
    40 m³ (terrace house) / 50 m³ (any other house) additional roof volume
    B · Set-back from the eaves
    Original eaves maintained; enlargement set at least 0.2 m from the eaves measured up the roof slope, so far as practicable (not required for hip-to-gable or roofs joining a rear/side extension)
    C · Height limit
    No part higher than the highest part of the existing roof

    Article 4 and conservation in Hackney

    Hackney has published 77 Article 4 directions covering 197 mapped areas, and 37 conservation areas, with 555 listed entries. Not every direction touches roofs, but with that many in force a householder application is a likely route, so we read the direction that covers your street.

    Our planning drawings in Hackney carry the roof section and elevations together. Where a roof still has its rights, a Lawful Development Certificate is still available and we say which applies after the address check.

    Flats, maisonettes and the few houses

    Only 18.8 per cent of Hackney households live in a house or bungalow, and 24.6 per cent own their home. Most roof space is above flats, where permitted development for loft work does not apply and the freeholder or neighbours often have a say.

    For a house, the owner can usually act alone. For a top-floor flat, we draw to the same standard but plan the application with the lease in view. A terraced house here averages 960,633 pounds, which explains why owners invest in the loft rather than move.

    Velux loft conversion drawings in Hackney: stair and fire

    Victorian terraces often leave little room for a stair. The Approved Document offers a reduced standard: Loft conversions where 2.0 m cannot be achieved: 1.9 m at the centre of the stair, 1.8 m at the side (half width). We test the stair on a measured section.

    A new storey also requires: New storey above 4.5 m by loft conversion: protect the full escape route with fire-resisting doors (min E 20) and partitions (min REI 30). Our drawings show where doors and partitions sit, and our building regulations drawings in Hackney pick the detail up for the building control stage.

    Before drawing we visit to measure ridge height, joist depth and the party wall positions with a laser, because a Hackney terrace often shares its roof structure with both neighbours. Work to a party wall needs notice under the Party Wall Act, and our drawings give the surveyor what the notice needs.

    Decisions, fees and where to look next

    Hackney decided 415 householder applications in its latest year and granted 84.6 per cent, with 91.3 per cent decided in time. These are borough-wide, not a prediction for your roof. Percentages like these shift from one year to the next, so we look at the newest release again when we set out your programme.

    Our fixed fee is £695 including VAT, with a second chartered technologist checking each sheet and free redraws if the council asks. For more headroom, see dormer loft conversion drawings in Hackney; the whole choice is at loft conversion drawings in Hackney. The area overview is architectural drawings in Hackney.

    Hackney also adopted its Retrofit SPD, which matters if you plan to upgrade insulation at the same time. Better insulation costs headroom under a slope, so we show the build-up on the section and let you decide how much height to trade for warmth.

    What you receive

    Planning drawing sheet for a rear extension with plans, elevations and sections
    Sample drawing. Planning drawings for a rear extension: plans, elevations and sections on one sheet set.
    Slate-clad roof extension on a yellow-brick London terraced house
    Storey by storey
    Move up and down — the car travels between floors.

    Other services in Hackney

    Velux loft conversion drawings nearby

    Questions

    How wide can a rooflight be in Hackney?

    The council guidance in the Residential extensions and alterations SPD says 600 mm at most, and resists irregular sizes or positions.

    Do I need permission for a loft rooflight in Hackney?

    Possibly, because 77 Article 4 directions and 37 conservation areas cover so much of the borough. We check first.

    How much do the drawings cost?

    From £695 including VAT.

    Can I add a side-slope window?

    Side roof-slope windows obscure-glazed and non-opening below 1.7 m.

    Sources and dates

    City of London skyline glowing at dusk across the Thames under a dramatic orange sky

    Tell us about your property.

    We check the constraints, then send a fixed fee. Messages before 3pm get a reply the same working day.

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