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Ealing, London

Construction drawings in Ealing

Ealing's extension rules sit in a short supplementary document and a core strategy adopted in 2,012, so the detail that matters is usually in your own planning decision. We draw the construction set that carries it out. Fixed quote after a free constraints check.

Fixed quote after a free constraints check

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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 construction drawings

    Five 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. 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.

    4. Building regulations

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

    5. 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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    Pencil resting on a dimensioned technical drawing beside a scale rule

    Construction drawings in Ealing and the extensions guide

    Ealing's guide for householders is SPD 4 - Residential extensions. It hangs from Ealing Local Plan: Development (or Core) Strategy DPD (2012), with Development Sites DPD and Development Management DPD (December 2013). That core strategy dates from 2,012, so newer decisions may cite more recent national policy alongside it. No Ealing rule governs construction drawings themselves.

    In practice the planning officer's report is the working document, and it is surprising how often an owner has never read it. It tells us which parts of the guide were applied, what the council considered acceptable, and which conditions follow. We pick out every measurement and every material and write it into our drawings and specification.

    If you do not yet have permission, start with planning drawings in Ealing or check whether permitted development is enough through a lawful development certificate in Ealing.

    Steel beams supporting exposed timber floor joists on temporary props during a house renovation

    Local figures for Ealing

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Conservation areas31 named conservation areas published by the council—planning.data.gov.uk
    Listed building entries309 list entries (Historic England, within the LPA boundary)—planning.data.gov.uk
    Heritage at Risk entries18 Heritage at Risk Register entries within the LPA boundary (Historic England)—planning.data.gov.uk
    Green Belt share of the council area6 % of council area covered by green-belt polygons—planning.data.gov.uk
    Households living in a house50.3 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.uk
    Local plan adopted2,012—ealing.gov.uk
    Larger home extension prior approvals granted18 decisions2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk
    Larger home extension prior approvals refused70 decisions2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk
    Lawful development certificate applications (PS1)754 certificates2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.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 Ealing
    Building regulations, layer by layerPart A: structure: Approved Document A: Structure, 2004 edition incorporating 2004, 2010 and 2013 amendments. Part B: fire safety: All dwellings: fire detection and alarm system minimum Grade D2 Category LD3 (BS 5839-6), mains-operated smoke alarms to BS EN 14604. Part L: insulation: 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. Part K: stairs: 2.0 m clear headroom over stairs. Full plans application: Building control body must decide a full plans application within 5 weeks, or longer if agreed in writingPart A: structurePart B: fire safetyPart L: insulationPart K: stairsFull plans applicationABCDE

    Building regulations, layer by layer

    The Approved Documents that shape most house projects, from structure to the application itself.

    A · Part A: structure
    Approved Document A: Structure, 2004 edition incorporating 2004, 2010 and 2013 amendments
    B · Part B: fire safety
    All dwellings: fire detection and alarm system minimum Grade D2 Category LD3 (BS 5839-6), mains-operated smoke alarms to BS EN 14604
    C · Part L: insulation
    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
    D · Part K: stairs
    2.0 m clear headroom over stairs
    E · Full plans application
    Building control body must decide a full plans application within 5 weeks, or longer if agreed in writing

    Why prior approval is so common here

    Larger home extensions are often routed through prior approval, and Ealing's figures show why that route is fraught: 18 granted and 70 refused in the latest published year. The council also dealt with 754 lawful development certificate applications.

    The lesson for a construction set is timing. If your design rests on prior approval, the drawings should not be finalised until the council has decided, because a neighbour objection can force a redesign. We hold the detailed drawings back until that point, and draft the specification in the meantime.

    Heritage and levy in Ealing

    The borough has 31 conservation areas and 309 list entries, with 18 heritage assets at risk and 6 scheduled monuments. Green Belt covers 6 per cent of the area. About 50.3 per cent of households live in a house, and 46.2 per cent are owner-occupied.

    Ealing's levy has two zones: £300/m² (Central Ealing); £150/m² (Rest of LPA). Mayoral CIL (MCIL2) £60/m² indexed additionally. If your address is in the central zone, the charge is higher, so check before you design the extension's size. The levy is calculated on gross new floor area, which is why we state areas on the plans from the measured survey and not as rounded estimates. A loft or a rear room that looks small can still cross the threshold at which the charge applies, and a mistake in the area becomes a mistake in the bill.

    Checks inspectors make on a loft or extension

    Our Ealing sets show each of these. Stairs: Private stair: rise 150-220 mm, going 220-300 mm, max pitch 42°, 2R+G 550-700 mm. Headroom: 2.0 m clear headroom over stairs. Escape windows: 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.

    Alarms: All dwellings: fire detection and alarm system minimum Grade D2 Category LD3 (BS 5839-6), mains-operated smoke alarms to BS EN 14604. The drawings mark each alarm and the interlink, so the electrician follows a plan.

    Neighbours, prior approval and the construction set

    Plans change shape on the way through any consultation. The prior approval route puts the neighbour at the centre of the process, because adjoining owners are consulted and their objections can decide the outcome. A construction set drawn too early can become wasted work if an objection forces the extension to shrink.

    Our practice is to draft the specification while the council decides, and to hold the dimensioned drawings until the outcome is known. That costs a few days at the start of the build programme and avoids redrawing every junction.

    If the prior approval is refused, the next step is a householder planning application, which the planning drawings in Ealing cover. We reuse the survey, so the cost of the change of route stays small.

    Householder figures, fees and nearby places

    In its latest published year the council decided 946 householder applications, granted 87.2 per cent and decided 95.3 per cent in time.

    The fee is fixed after our free check. For the submission see building regulations drawings in Ealing; for beams, structural calculations in Ealing; for the borough overview, architectural drawings in Ealing. We also cover Brent next door.

    What you receive

    Building regulations section drawing showing the construction build-up
    Sample drawing. Building regulations section showing construction build-up for a building control check.
    Brick house being extended, with a wide new opening supported over the ground floor
    Every layer specified
    Move across to open the layers; move down to pick one.

    Other services in Ealing

    Construction drawings nearby

    Questions

    Which Ealing document governs my extension?

    The council's supplementary document on residential extensions, read with the local plan. Your decision notice may add conditions on top.

    Is Ealing's local plan out of date?

    The core strategy dates from 2,012, though the council has added documents since. We cite whichever the officer relied on in your decision.

    Why is prior approval refused so often in Ealing?

    We cannot give the reasons from the figures alone. The latest Ealing count is 70 refusals against 18 grants, so we plan for a possible redesign.

    Sources and dates

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    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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