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Haringey, London

Side return extension drawings in Haringey

Haringey has a guide written for one neighbourhood's extensions: the House extensions in South Tottenham SPD (revised). Our side return extension drawings for Haringey start at £745 including VAT. The borough also has 25 Article 4 directions and 33 conservation areas, so we check your address against all three.

From £745 (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 side return extension 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.

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

    Side return extension drawings in Haringey: a guide for South Tottenham

    The council's House extensions in South Tottenham SPD (revised) covers the streets of South Tottenham, an area it treats separately from the rest of the borough. If your house is in that area, its advice on side and rear additions applies and officers will have it open when they read your application. We read it before drawing and set the design against its advice.

    Elsewhere in the borough, the 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. It sets design principles but we found no numbered limit for side extensions with a page reference, so we do not quote one. In both cases, the weight of the application falls on the drawings and the design note.

    A practical point about that guide: it is a document owners rarely read until an application is in, and by then the design is fixed. We reverse the order. We read the relevant pages early and shape the extension to fit them. If the guide asks for something your plot cannot give, you hear it before spending on a full set.

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

    Local figures for Haringey

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Article 4 directions25 Article 4 directions published by the council—planning.data.gov.uk
    Conservation areas33 named conservation areas 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
    Larger home extension prior approvals granted13 decisions2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk
    Larger home extension prior approvals refused19 decisions2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk
    Households living in a house38.9 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.uk
    Average price, terraced803,381 GBP2026-07publicdata.landregistry.gov.uk
    Class A, para A.1(j)Side extension: single storey, max 4 m high, max half the width of the original house—legislation.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, conservation areas and listing

    Haringey has 25 Article 4 directions, 33 conservation areas and 289 list entries. A direction can remove permitted development for extensions, roofs or boundary walls in streets that are not conservation areas, so the maps matter even if your house looks ordinary.

    The national rule explains why the check is needed: Side extension: single storey, max 4 m high, max half the width of the original house. We look up your address and tell you whether permitted development is open, which saves a fee if it is and a wasted wait if it is not.

    Haringey's decisions

    The council decided 689 householder applications in its latest year, granted 90.3 per cent and decided 94.3 per cent in time. Those are good figures for a busy borough, and a complete first submission avoids an avoidable delay at validation.

    For larger home extensions under prior approval, the council granted 13 and refused 19, so refusals outnumber grants. A deep rear extension joined to a side return therefore usually works better as a full application, which lets the officer judge the whole design.

    Houses, gardens and letting

    38.9 per cent of Haringey households live in a house, an average terraced house costs £803,381 and gardens cover 26.6 per cent of the borough's land.

    The borough has an Article 4 direction on houses in multiple occupation. If the new space is to be let, the use needs its own check, and our HMO conversion drawings page covers the process. For a family kitchen, it does not apply.

    Party walls, structure and energy

    Most side returns need a party wall notice, and our party wall notices page explains how we prepare them from the same drawings.

    The old flank wall comes out, so we coordinate a beam through structural calculations. Glazing is the other big item, and the council's householder fee is £548, paid separately from our fee.

    Where a flat roof or a glazed roof is planned, the junction with the neighbour is the detail most worth drawing at large scale. We detail the flashing, the gutter and the upstand, because water at the boundary is a frequent cause of later disagreement between neighbours.

    Price and what you receive

    Haringey side return drawings start at £745 including VAT, fixed before you commit. The set has existing and proposed plans, elevations, a section and location and block plans.

    A second chartered architectural technologist checks every sheet, and we redraw free until approval if Haringey asks for changes. See rear extension drawings in Haringey, planning drawings in Haringey and architectural drawings in Haringey.

    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

    Side return extension drawings nearby

    Questions

    Does Haringey have a guide for house extensions?

    Yes, for one area: the House extensions in South Tottenham SPD (revised). Elsewhere, officers apply 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.

    Is my Haringey street under an Article 4 direction?

    The borough has 25 directions. We look up your address and tell you before you commit to a fee.

    How quickly does Haringey decide householder cases?

    It decided 94.3 per cent in time in its latest year and granted 90.3 per cent.

    How much are side return extension drawings in Haringey?

    From £745 including VAT, fixed before you commit. The council fee is separate.

    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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