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Bright finished basement room with a glass-balustrade staircase, high windows and a built-in desk
Photograph: Point3D Commercial Imaging Ltd.

01Ealing, London

Basement conversion drawings for Ealing homes

Ealing will not let a basement cut a garden below the council's standard, and in conservation areas it resists basements that harm the street. Our chartered architectural technologists (MCIAT) draw yours to both tests, from £1,995 including VAT.

From £1,995 (VAT included)

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    02The brief

    Garden space and method statements

    Domestic gardens make up 25.6% of Ealing's land in the Greater London land-use data, and the council guards that space. A basement must not reduce the garden below its standard, and where one is permitted the guidance is short: “method statement required”.

    So the drawing set starts with the garden: footprint under the lawn, soil depth above the slab, and what the council's standard leaves. The method statement is coordinated with a structural engineer once the design is fixed.

    Brick house being extended, with a wide new opening supported over the ground floor
    Georgian brick terrace with sash windows, arched fanlight doorways, stone steps and iron railings in London
    Photograph: Lorenc Memaga

    03The record

    Local figures for Ealing

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Basements must not cut garden below council garden space standards; structural method statement required if permittedmethod statement requiredNo periodealing.gov.uk, Ealing SPD 4 Residential Extensions (2004 UDP era, retained as interim guidance), Section 10.0 Basements, p.25
    Basements in conservation areas resisted where harmful; lightwell, railings and stair details assessedno harm to conservation areaNo periodealing.gov.uk, Ealing SPD 4 Residential Extensions (2004 UDP era, retained as interim guidance), Section 10.0 Basements, p.25
    Party Wall etc. Act 1996 s6(1), s6(2), s6(5)Adjacent excavation notice at least 1 month before work: within 3 m and deeper than the neighbour's foundations, or within 6 m and cutting a 45° line from their foundationsNo periodlegislation.gov.uk
    Party Wall etc. Act 1996 s5, s6(7)A dispute arises if the adjoining owner does not consent within 14 days of the noticeNo periodlegislation.gov.uk
    Approved Document B Vol 1, para 2.16Basement storeys with habitable rooms need an escape window or external door, or a protected stair to a final exitNo periodgov.uk
    Householder: alterations/extensions to a single dwellinghouse, from 1 Apr 2026548 GBPNo periodribblevalley.gov.uk
    CIL Regulations 2010 reg 42(1)-(2)No CIL where new build gross internal area is under 100 m², unless one or more dwellings are createdNo periodlegislation.gov.uk
    Domestic gardens share of land (GLUD 2005)25.6 % of land that is domestic garden (GLUD 2005)2005data.london.gov.uk
    Conservation areas31 named conservation areas published by the councilNo periodplanning.data.gov.uk
    Listed building entries309 list entries (Historic England, within the LPA boundary)No periodplanning.data.gov.uk

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

    Ealing5 neighbouring councils
    Councils bordering Ealing

    04The streets

    Householder applications by street in Ealing

    Streets in Ealing with the most householder applications, and the share approved
    StreetApplicationsApproved
    Brentham Way4290%
    Corringway3476%
    Bilton Road2889%
    Norwood Road2872%
    Ashbourne Road2783%
    Fielding Road2689%
    Tentelow Lane2571%
    Brunswick Road24100%
    Ludlow Road2491%
    Meadvale Road2395%
    St Albans Avenue2391%
    Woodfield Road23100%
    Denison Road21100%
    Laughton Road2183%
    Rusthall Avenue2185%

    Counts of householder applications by street; no individual applications are shown. Streets with fewer than five applications are left out.

    GLA Planning London Datahub, householder applications

    05The drawing

    A basement in sectionA, Ealing: depth and garden share: method statement required. B, Party wall notice for excavation: Adjacent excavation notice at least 1 month before work: within 3 m and deeper than the neighbour's foundations, or within 6 m and cutting a 45° line from their foundations. C, Escape from basement rooms: Basement storeys with habitable rooms need an escape window or external door, or a protected stair to a final exitABC

    A basement in section

    A house and garden over a single-storey basement. The lettered marks show the limits the legend gives.

    A Ealing: depth and garden share
    method statement required
    B Party wall notice for excavation
    Adjacent excavation notice at least 1 month before work: within 3 m and deeper than the neighbour's foundations, or within 6 m and cutting a 45° line from their foundations
    C Escape from basement rooms
    Basement storeys with habitable rooms need an escape window or external door, or a protected stair to a final exit
    The basement in three dimensions3D
    Scroll the page: the model turns with it.

    06The detail

    Lightwells, railings and conservation areas

    In a conservation area the council's test, in its shorthand, is “no harm to conservation area”. The council resists basements where they are harmful and assesses lightwell, railing and stair details one by one, so these are drawn as detailed elevations and sections.

    The borough has 31 conservation areas and 309 list entries. A listed house also needs consent, which is covered by listed building consent drawings in Ealing.

    Neighbours and the party wall

    Digging next to a shared wall brings the Party Wall etc. Act 1996 into play. Adjacent excavation notice at least 1 month before work: within 3 m and deeper than the neighbour's foundations, or within 6 m and cutting a 45° line from their foundations. Then, separately: A dispute arises if the adjoining owner does not consent within 14 days of the notice.

    Basement storeys with habitable rooms need an escape window or external door, or a protected stair to a final exit. We draw that route on the plan, not as a note.

    Fees, levy and the neighbouring roof

    The council's householder fee for a house is £548, paid separately from our fixed fee. Two levy rules matter. No CIL where new build gross internal area is under 100 m², unless one or more dwellings are created. Residential extensions and annexes can claim exemption (claim before commencement).

    A roof extension over the same house is a different application; Ealing's rules for it are in mansard roof drawings in Ealing.

    Planning sheet for a single-storey rear extension: proposed ground floor plan and rear elevation, with the Property Architecture title block
    Sample drawing. Proposed plan and rear elevation from a planning application set, sheet 03 at 1:50.

    07The papers

    What the drawings rest on

    Rear view of brick terraced houses in London with slate roofs and chimney stacks along the shared rooflineParty wall services
    Photograph: Ben Hadfield
    Structural calculation sheet for a steel beam over a new rear opening, with the load diagram, loading table and section checks
    Sample drawing. Beam B1 over a new rear opening: loading, bending moment and section checks.

    08Correspondence

    Questions

    Do I need planning permission for a basement in Ealing?

    Usually yes, because a basement under a house is a substantial excavation. If the council accepts one in principle, it also wants a structural method statement. We confirm the route in the free constraints check before quoting.

    Can I add a lightwell on a street in a conservation area?

    Ealing resists basements that harm a conservation area and assesses lightwell, railing and stair details. We draw the visible parts first and show how they sit against the front elevation, so the officer can judge them.

    How much are basement conversion drawings?

    Our fee starts at £1,995 including VAT. Council fees and the structural engineer's calculations are separate, and a second technologist checks every set before submission.

    Rows of brick terraced houses and gardens on a residential street

    25.6%

    of land that is domestic garden (GLUD 2005)

    Domestic gardens share of land (GLUD 2005), Ealing, 2005. Source: data.london.gov.uk

    Photograph: Altaf Shah

    09Further reading

    Other services in Ealing

    Basement conversion drawings nearby

    10Sources

    Sources and dates

    Licences

    Kensington street lined with brick townhouses and lit streetlamps beneath an orange dusk sky

    Send us the address of your house.

    We look up the conservation area, listing and Article 4 position, then reply with a fixed fee. A message before 3pm is answered the same working day.

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    Basement conversion drawings in Ealing