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Havering, London

Velux loft conversion drawings in Havering

Velux loft conversion drawings in Havering start at £695 including VAT. Havering is a borough of owners, with 69.5 per cent of households owning their home, and 76.7 per cent living in a house or bungalow. Add a Green Belt covering 53 per cent of the area, and a rooflight loft is the natural first step.

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.

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

    Why Havering owners choose rooflights first

    Green Belt covers 53 per cent of Havering, and national policy is strict about adding bulk to buildings inside it. A rooflight conversion adds none: the roof shape stays, the windows lie in the slope, and the house reads from the road exactly as before. For homes near the edge of the borough that is a real advantage.

    Away from the open land, many homes are suburban semis and bungalows. Where a bungalow has a steep roof, a rooflight room can be generous; where the pitch is shallow it can feel boxed in. We measure before we promise anything and tell you which side of that line your roof falls on.

    The rooflight limit under permitted development is: Roof alterations (e.g. rooflights) may not protrude more than 0.15 m beyond the roof plane. We keep to it so the Lawful Development Certificate route stays open.

    Slate-clad roof extension on a yellow-brick London terraced house

    Local figures for Havering

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Green Belt share of the council area53 % of council area covered by green-belt polygons—planning.data.gov.uk
    Owner-occupied households69.5 % of households owner-occupied (owned outright or with mortgage/loan)Census 2021nomisweb.co.uk
    Households living in a house76.7 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.uk
    Conservation areas11 named conservation areas published by the council—planning.data.gov.uk
    Listed building entries146 list entries (Historic England, within the LPA boundary)—planning.data.gov.uk
    Householder decisions985 decisions1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications granted85.9 %1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications decided in time97.8 % decided within 8 weeks or an agreed extended period1 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 K 2013, para 1.13, Diagram 1.4Loft 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)—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 Havering
    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

    Local guidance and heritage in Havering

    The council's guidance for householder work is the Residential Extensions and Alterations SPD, and it also publishes a Heritage SPD. We draw to the first on every job and read the second where the house is near a protected building or area.

    Havering has only 11 conservation areas and 146 listed entries, relatively few for London, so the majority of houses face no heritage control on the roof. We still run the check, because for the few that are affected a listing changes the whole route.

    Where the house is clear, a Lawful Development Certificate is the usual choice; otherwise see planning drawings in Havering.

    Velux loft conversion drawings in Havering: how the council decides

    Havering decided 985 householder applications in its latest published year, a large number, and granted 85.9 per cent. An unusually high 97.8 per cent were decided in time.

    That speed is helpful, but it also leaves less time to fix a thin submission during the application. We make the first set complete. These are borough-wide numbers and do not predict any one decision.

    Because the borough has few controls on roofs, the main risk to a Havering scheme is not the council but the neighbours. A loft room with windows in the side slope can overlook a garden, and the rule on obscure glazing exists for that reason. We draw the side-slope units with their glazing type noted so no one is surprised.

    A measured survey comes first. Bungalows often have a low wall plate, so we record the wall plate and ridge precisely; a few centimetres decide whether a bedroom is usable.

    Stairs, escape and energy detail

    In a bungalow the stair has to be created from nothing, usually from the hall or a bedroom. Where headroom is short, the guidance allows: 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 lay the stair out on the plan and section together so you can see what it costs the floor below.

    A bedroom in the roof needs an escape route: 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. The rooflight nearest the eaves usually serves, and we fix its sill height on the section. New windows must also meet: New elements in existing dwellings, limiting U-values W/(m²·K): roof 0.15, wall 0.18, floor 0.18, windows 1.4 (or WER Band B), doors 1.4.

    A bungalow loft becomes a two-storey house in building regulations terms, so the later building regulations drawings in Havering carry the fire and structure detail.

    Price, checking and related pages

    The fixed fee is £695 including VAT. Every sheet is checked by a second MCIAT chartered technologist, and we redraw without charge if the council asks for changes. A semi-detached house averages 540,897 pounds here, which frames what a new bedroom is worth.

    For more headroom, see dormer loft conversion drawings in Havering. The full set of options is at loft conversion drawings in Havering, the borough overview is architectural drawings in Havering, and the national guide is Velux loft conversion drawings.

    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.
    Converted loft bedroom with roof windows and a Juliet balcony
    Storey by storey
    Move up and down — the car travels between floors.

    Questions

    Does Green Belt block a loft conversion in Havering?

    Not for rooflights, which add no bulk. 53 per cent of the borough is Green Belt, so we avoid anything that enlarges the roof.

    Is there local householder guidance?

    Yes, the Residential Extensions and Alterations SPD, which we draw to on every job.

    How much do the drawings cost?

    From £695 including VAT.

    Can I add side-slope windows?

    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.