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Hounslow, London

Architectural drawings in Hounslow

Hounslow's householder design guide is its Character, Sustainability and Design Codes SPD, and every extension drawing we prepare here is checked against it. We are MCIAT chartered architectural technologists, and our architectural drawings in Hounslow start at £745 including VAT, with a free look at your address before we quote.

Fixed quote after a free constraints check

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  • £2m PI insured
  • LABC Partnered
  • Fixed fees, VAT included

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    Red-brick mansion blocks and shopfronts on a street corner

    Hounslow in numbers

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Conservation areas33 named conservation areas published by the council—planning.data.gov.uk
    Article 4 directions3 Article 4 directions published by the council—planning.data.gov.uk
    worldHeritageSites1 World Heritage Sites intersecting the LPA boundary—planning.data.gov.uk
    Listed building entries519 list entries (Historic England, within the LPA boundary)—planning.data.gov.uk
    Heritage at Risk entries27 Heritage at Risk Register entries within the LPA boundary (Historic England)—planning.data.gov.uk
    Householder decisions689 decisions1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications granted78.5 %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
    Households living in a house54 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.uk
    Owner-occupied households45.7 % of households owner-occupied (owned outright or with mortgage/loan)Census 2021nomisweb.co.uk
    Mayoral CIL charging band2 MCIL2 charging band (1-3)—london.gov.uk
    Mayoral CIL rate (indexed)72.73 £/m² (indexed, permissions granted in 2026)—london.gov.uk
    Local planHounslow Local Plan 2015-2030 (Volumes 1 and 2)—hounslow.gov.uk
    Supplementary planning documentCharacter, Sustainability and Design Codes SPD2024hounslow.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 Hounslow

    Householder applications by street in Hounslow

    Streets in Hounslow with the most householder applications, and the share approved
    StreetApplicationsApproved
    Firs Drive3761%
    Wood Lane3259%
    Park Drive3169%
    Parkwood Road2859%
    Worton Road2758%
    Arnold Crescent2654%
    Popes Lane2483%
    St Stephens Road2477%
    Whitton Dene2450%
    Harewood Road2378%
    Princes Avenue2382%
    Spring Grove Road2355%
    Fern Lane2268%
    Netheravon Road2273%
    North Hyde Lane2255%
    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.
    Constraints check: HounslowConservation areas: 33 named conservation areas published by the council. Article 4 directions: 3 Article 4 directions published by the council. Listed building entries: 519 list entries (Historic England, within the LPA boundary)33Conservation areasA3Article 4 directionsB519Listed building entriesC

    Constraints check: Hounslow

    What we check first on any Hounslow address. Counts are for the whole council area.

    A · Conservation areas
    33 named conservation areas published by the council
    B · Article 4 directions
    3 Article 4 directions published by the council
    C · Listed building entries
    519 list entries (Historic England, within the LPA boundary)

    Hounslow's design codes and local plan

    The council's core policy document is the Hounslow Local Plan 2015-2030 (Volumes 1 and 2), adopted in 2,015. It has been in place for some years, so the Character, Sustainability and Design Codes SPD is the practical guide officers turn to for detail.

    Design codes read like a checklist of detail. They deal with how a new roof, a front elevation or a side extension relates to the character of its street, so the drawings need to show the neighbouring houses beside your own.

    We show the street frontage for that reason, so the officer can see the proposal in context and not just on its own plot. Materials, window proportions and roof pitch are noted on the sheets beside the dimensions.

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

    Conservation areas, Article 4 and a World Heritage Site

    Hounslow publishes 33 conservation areas, so many streets sit under extra control. Inside one, permitted development is narrower and roof or facade changes can need full permission.

    Only 3 Article 4 directions appear on the council's list, a short list that makes the conservation areas themselves the main limit for most owners.

    1 World Heritage Site intersects the borough. Work near a World Heritage Site can be judged for its effect on the site's setting, so a taller extension or a roof alteration on a nearby street may attract closer scrutiny.

    Listed buildings in Hounslow

    Historic England lists 519 entries within the borough, and 27 appear on its Heritage at Risk Register. That is a substantial heritage load for one borough.

    If you own a listed house you need listed building consent for most alterations, inside as well as out. Check the national heritage list for your address, or ask us during the free constraints check.

    Flats, houses and what that means for permitted development

    Of Hounslow's 102,961 households, 54 per cent live in a house or bungalow and most of the rest live in flats. Only 45.7 per cent of households own their home.

    Flats and maisonettes have no householder permitted development rights, so owners of those homes nearly always need a planning application, often with a freeholder's licence as well. Our flat conversion drawings in Hounslow cover the conversion of a house into flats.

    A terraced house here sold for £611,320 on average in the latest Land Registry figures, a price that supports investing in more space.

    How Hounslow decides householder applications

    Over its latest twelve months Hounslow decided 689 householder applications and granted 78.5 per cent. As many as 97.8 per cent were decided inside eight weeks or an agreed extension.

    The council is fast, and roughly one householder case in five is not granted. A complete, carefully detailed submission therefore counts for more than a quick one. If a case officer asks for changes, we redraw at no charge.

    Levy zones and other costs

    Hounslow is in band 2 of the Mayor of London's levy at £72.73 per square metre this year. The borough has its own three-zone schedule, set out as £200/m² (CIL Zone 1, East); £110/m² (CIL Zone 2, Central); £70/m² (CIL Zone 3, West).

    The zone for your address depends on where in the borough you live. We note the likely zone in the next-steps pack.

    The council has an Article 4 direction on houses in multiple occupation, so a change from a family home to a small shared house needs an application.

    Services for Hounslow homes

    Most clients start with planning drawings in Hounslow or rear extension drawings in Hounslow. For a loft, see dormer loft conversion drawings in Hounslow.

    Across the boundary we cover Richmond upon Thames, Ealing and Spelthorne.

    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.
    Upper floors of a large yellow-brick Victorian house in London with chimney pots
    The street around you
    Move across the plinth — the blocks rise around the pointer.

    Nearby councils

    Questions

    Which design guide does Hounslow use?

    The Character, Sustainability and Design Codes SPD, read with the Hounslow Local Plan 2015-2030 (Volumes 1 and 2). We draw to both.

    How much are architectural drawings in Hounslow?

    The starting price for householder drawings in Hounslow is £745 with VAT, confirmed in writing first. The council charges its own fee.

    Do I need permission to extend a flat in Hounslow?

    Yes, a flat has no householder permitted development rights, so an application is almost always the route. Send us the address and we confirm it for free.

    How many conservation areas are there in Hounslow?

    The council publishes 33. Whether yours is one of them is part of our free constraints check.

    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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