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Barnet, London

Planning drawings in Barnet

Planning drawings for a Barnet house start at £745 including VAT. The council decided 1,361 householder applications in the latest year, and its officers read each one against a two-part design guide, so the drawings need to answer that guide directly.

From £745 (VAT included)

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

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    Brick cottage with a tiled roof, chimneys and a front dormer window

    The guidance Barnet applies to planning drawings

    Barnet's plan is the Barnet Local Plan 2021-2036, adopted in 2,025. For home projects the working document is the Sustainable Design and Development Guidance SPD, Part 4: Guidance on residential extensions and alterations, which sits beside the Sustainable Design and Development Guidance SPD, Part 2: The seven features of good design. Between them they cover how an extension meets the original house, how a roof alteration reads from the street, and what an addition does to a neighbour's outlook.

    We check the proposed elevations against the current text of both parts, not against an older approval down the road, because a precedent granted under earlier policy can carry less weight.

    In practice we annotate the sheets with the dimensions officers look for: depth beyond the neighbouring building line, height at the boundary and the setback from any flank wall. A reader should find the answer on the sheet without writing to us for it.

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

    Local figures for Barnet

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Conservation areas16 named conservation areas published by the council—planning.data.gov.uk
    Article 4 directions15 Article 4 directions published by the council—planning.data.gov.uk
    Listed building entries651 list entries (Historic England, within the LPA boundary)—planning.data.gov.uk
    Householder decisions1,361 decisions1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications granted80.2 %1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications decided in time95.1 % decided within 8 weeks or an agreed extended period1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Tree preservation orders718 tree preservation orders published by the council—planning.data.gov.uk
    Green Belt share of the council area28 % of council area covered by green-belt polygons—planning.data.gov.uk
    Householder appeals decided by the Planning Inspectorate413 householder appeals decideddecision dates 1 Jul 2021 to 30 Jun 2026assets.publishing.service.gov.uk
    Householder appeals allowed50.6 % of householder appeals alloweddecision dates 1 Jul 2021 to 30 Jun 2026assets.publishing.service.gov.uk
    Householder: alterations/extensions to a single dwellinghouse, from 1 Apr 2026548 GBP—ribblevalley.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 Barnet
    Which application your project needsLawful Development Certificate decision: 8 weeks. Prior approval decision: 42 days. Householder decision: 8 weeksYour projectWithin permitted development?Lawful Development CertificatePrior approvalHouseholder applicationYesLarger rear extensionNoABC

    Which application your project needs

    The usual route for a house; flats and listed buildings follow other rules.

    A · Lawful Development Certificate decision
    8 weeks
    B · Prior approval decision
    42 days
    C · Householder decision
    8 weeks

    Barnet's decisions and appeals in numbers

    In its latest twelve months Barnet granted 80.2 per cent of the 1,361 householder applications it decided, and 95.1 per cent were decided on time or within an agreed extension.

    The appeal record adds a second view. Of 413 householder appeals decided by the Planning Inspectorate over five years, 50.6 per cent were allowed. That tells us a refusal here is sometimes overturned, though an appeal takes months and costs money, so a clean first submission is the better plan.

    These are borough-wide figures from public datasets. They describe the past, and none of them predicts what happens to your application.

    Trees, green belt and heritage in Barnet

    Barnet has 718 tree preservation orders, and a protected tree near an extension changes what can be built and where. Our constraints check looks for them before any design work, and the block plan marks root protection where it applies.

    Green belt polygons cover 28 per cent of the borough. Houses there face tighter rules on the size of extensions and outbuildings.

    The council publishes 16 conservation areas and 15 Article 4 directions, and Historic England lists 651 entries in the borough. Inside a conservation area, permitted development is cut back and a loft enlargement needs an application.

    Choosing the route for a Barnet home

    52.5 per cent of Barnet households live in a house or bungalow, so rear extensions, loft conversions and garage conversions are common projects. For many of these, permitted development is available, and a Lawful Development Certificate in Barnet puts that in writing.

    When a project exceeds the limits, or the address sits in a protected area, a householder application follows. The council fee is £548, and the council has 8 weeks to decide unless you agree more time.

    Barnet also has an Article 4 direction for houses in multiple occupation, so a plan to let by the room is assessed separately.

    What you receive and what it costs

    Each set holds existing and proposed plans, elevations and sections, a location plan and a block plan, with scale and north stated. The price starts at £745, VAT included and fixed before you commit.

    A second chartered technologist reads every sheet before submission. If the council asks for changes we redraw at no charge until approval, though we cannot promise a decision.

    Where to go next in Barnet

    The borough overview is at architectural drawings in Barnet. If the council refuses, our planning appeals in Barnet service takes over. For the technical stage, see building regulations drawings.

    Compare neighbouring rules in Hertsmere, Enfield and Harrow, or read the national route on planning drawings in London.

    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.
    Pencil resting on a dimensioned technical drawing beside a scale rule
    The street around you
    Move across the plinth — the blocks rise around the pointer.

    Questions

    Which guidance does Barnet use for house extensions?

    Mainly the Sustainable Design and Development Guidance SPD, Part 4: Guidance on residential extensions and alterations, read with the Sustainable Design and Development Guidance SPD, Part 2: The seven features of good design. We draw against the current versions.

    How many householder applications does Barnet grant?

    In the latest twelve months it granted 80.2 per cent of 1,361 householder decisions. That is a borough-wide record and says nothing about a single house.

    Can a tree stop my Barnet extension?

    It can shape it. The borough has 718 tree preservation orders, and building near a protected tree needs care. We check this in the constraints step.

    How much are planning drawings in Barnet?

    From £745 including VAT, fixed up front. The council's own fee is paid to the council.

    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.