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Haringey, London

Double-storey extension drawings in Haringey

Double-storey extension drawings for a Haringey house start at £1,295 including VAT. Haringey has 25 Article 4 directions and 33 conservation areas, and in South Tottenham its own design guide discourages a common request: an extra floor over a rear projection.

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    Two-storey rear extension under construction on a semi-detached house

    Haringey's guidance on double-storey extensions

    For South Tottenham the council has adopted the House extensions in South Tottenham SPD (revised). On additional floors above two-storey rear projections its position is that they are strongly discouraged. Outside that area the general policy applies: the extension should be subordinate, respect the neighbours' light and outlook, and fit the street.

    That difference matters before you commission anything. A house in South Tottenham with an existing two-storey back addition cannot assume it may go higher, whereas a similar house elsewhere in the borough is judged on the general tests. We check which guide covers your address and design to it from the first sketch. If the guide applies, we show the options that stay within it, such as a single-storey rear addition or a loft, beside the two-storey version.

    The wider policy base is the Haringey Local Plan: Strategic Policies 2013-2026 (consolidated with 2017 alterations), with the Development Management DPD, Site Allocations DPD and Tottenham Area Action Plan. Nationally, permitted development reaches: Over one storey: max 3 m beyond the original rear wall and not within 7 m of the rear boundary. Where that is too small for the brief, the application has to make the case for the extra floor on its merits.

    House extension under construction with scaffolding, new glazed doors and building materials

    Local figures for Haringey

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Supplementary planning documentHouse extensions in South Tottenham SPD (revised)2013haringey.gov.uk
    Conservation areas33 named conservation areas published by the council—planning.data.gov.uk
    Article 4 directions25 Article 4 directions published by the council—planning.data.gov.uk
    Listed building entries289 list entries (Historic England, within the LPA boundary)—planning.data.gov.uk
    Householder decisions689 decisions1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications granted90.3 %1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications decided in time94.3 % decided within 8 weeks or an agreed extended period1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Domestic gardens share of land (GLUD 2005)26.6 % of land that is domestic garden (GLUD 2005)2005data.london.gov.uk
    Class A, para A.1(h)Over one storey: max 3 m beyond the original rear wall and not within 7 m of the rear boundary—legislation.gov.uk
    Class A, para A.2(c)No rear extension of more than one storey under PD on article 2(3) land—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 Haringey

    Householder applications by street in Haringey

    Streets in Haringey with the most householder applications, and the share approved
    StreetApplicationsApproved
    Sheldon Avenue2065%
    Gladesmore Road1788%
    Stapleton Hall Road1382%
    Boundary Road12100%
    Cholmeley Park1278%
    Craven Park Road12100%
    Seaford Road1282%
    Wargrave Avenue1282%
    Woodside Avenue1291%
    Beresford Road11100%
    Fairview Road10100%
    Onslow Gardens10100%
    Priory Gardens1090%
    Allison Road9100%
    Dukes Avenue978%
    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.
    The 45-degree test in planTest used in daylight assessments: 45 degrees (plan and elevation)A

    The 45-degree test in plan

    A line from the middle of the neighbour's nearest window: the extension should stay behind it.

    A · Test used in daylight assessments
    45 degrees (plan and elevation)

    Article 4 directions and conservation areas

    Haringey has 25 Article 4 directions, and 33 conservation areas. Within a conservation area: No rear extension of more than one storey under PD on article 2(3) land. An Article 4 direction removes other permitted development rights in its area.

    Historic England lists 289 entries in the borough, and 21 places are on its Heritage at Risk Register. For a listed house we draw to the extra standard that listed building consent demands. Around 2 per cent of Haringey is Green Belt, so a few plots face the proportionality test as well.

    How Haringey decides householder applications

    Haringey decided 689 householder applications in its latest published year and granted 90.3 per cent. It decided 94.3 per cent within eight weeks or an agreed extension.

    Those figures include every kind of householder work and tell you nothing about a particular house. They are a guide to timing. What decides your own application is the drawing set itself: how the extension sits beside the neighbours, how it meets the relevant guide, and how clearly the plans show both. Domestic gardens make up 26.6 per cent of the borough's land in the Greater London Authority's land-use survey, a borough-wide measure and not a guide to one plot.

    Building details for the upper floor

    Upper-floor side windows must be: Upper-floor side windows obscure-glazed and non-opening below 1.7 m above floor. A first-floor bedroom needs: 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. New walls, roof and floor must 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.

    Shared walls need: Party structure notice at least 2 months before work. Our party wall notices service prepares the notices and the drawings that go with them.

    Price and what you receive

    Drawings start at £1,295, VAT included, fixed before you commit. The set includes plans of both floors, elevations, sections and location and block plans, and a second chartered technologist checks every sheet. The council's householder fee is £548. If officers ask for changes we redraw at no charge until approval.

    When an application is needed, our planning drawings page explains what it contains.

    Other drawings in Haringey and nearby

    For the borough overview see architectural drawings in Haringey. Where a second floor is discouraged, rear extension drawings in Haringey or loft conversion drawings in Haringey may meet the same need. The national rules are on the double-storey extension drawings hub. Nearby: Hackney, Enfield and Barnet.

    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.
    Brick house being extended, with a wide new opening supported over the ground floor
    Every side considered
    Flick across the turntable to spin it.

    Other services in Haringey

    Double-storey extension drawings nearby

    Questions

    Can I add a floor above my rear projection in South Tottenham?

    Haringey's South Tottenham guide strongly discourages additional floors on two-storey rear projections. We check the guide against your address and show alternatives.

    Do I need planning permission for a two-storey extension in Haringey?

    Usually. Permitted development stops at: Over one storey: max 3 m beyond the original rear wall and not within 7 m of the rear boundary, and not at all in the borough's 33 conservation areas.

    What is an Article 4 direction?

    It removes some permitted development rights in a defined area. Haringey has 25, and we check your address against each.

    How much do double-storey extension drawings cost in Haringey?

    From £1,295 including VAT, fixed up front.

    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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