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Enfield, London

Wraparound extension drawings in Enfield

Enfield has a large Green Belt and a busy prior approval record, and a wraparound extension here is often a mix of routes. We prepare wraparound extension drawings for Enfield from £1,195 including VAT, with the route chosen to match the house.

From £1,195 (VAT included)

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  • £2m PI insured
  • LABC Partnered
  • 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 wraparound 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.

    Request a fixed quote
    House extension under construction with scaffolding, new glazed doors and building materials

    Prior approval in Enfield: a busy route

    Enfield granted 35 larger home extension prior approvals in the latest twelve months and refused 27. More were granted than refused, so the route is worth a look for a plain rear extension.

    The catch is the side arm, which prior approval does not cover, and the national rule treats a joined side and rear arm as one enlargement: Limits apply to the total enlargement (new part plus any existing enlargement it joins).

    For most wraparounds that points to a householder application, and we explain on the drawings why the route was chosen.

    Part of the practical work is finding out whether a previous owner already used the prior approval route. If so, the earlier extension counts and may leave nothing for a further rear arm. Enfield's online planning register shows past applications at your address, and we check it before we draw.

    Brick house being extended, with a wide new opening supported over the ground floor

    Local figures for Enfield

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Larger home extension prior approvals granted35 decisions2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk
    Larger home extension prior approvals refused27 decisions2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk
    Green Belt share of the council area37 % of council area covered by green-belt polygons—planning.data.gov.uk
    Conservation areas24 named conservation areas published by the council—planning.data.gov.uk
    Article 4 direction areas33 Article 4 direction area polygons published by the council—planning.data.gov.uk
    Listed building entries301 list entries (Historic England, within the LPA boundary)—planning.data.gov.uk
    Householder decisions934 decisions1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications granted83.4 %1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications decided in time92.4 % decided within 8 weeks or an agreed extended period1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Households living in a house61.2 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.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 Enfield

    Householder applications by street in Enfield

    Streets in Enfield with the most householder applications, and the share approved
    StreetApplicationsApproved
    Lonsdale Drive4385%
    Wynchgate3784%
    Prince George Avenue3583%
    South Lodge Drive3274%
    Old Park Ridings2964%
    The Chine2966%
    Beech Hill Avenue2876%
    Chase Road2856%
    Lakenheath2870%
    Lancaster Avenue2877%
    Winchmore Hill Road2875%
    Conway Road2778%
    Merryhills Drive2785%
    Derwent Road2573%
    Woodland Way2567%
    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.
    Single-storey rear extension: the permitted development limitsDepth beyond the original rear wall: 3 m (attached) / 4 m (detached) beyond the original rear wall, single storey. Maximum height: 4 m. Within the zone near the boundary: Eaves no higher than 3 m where within 2 m of the curtilage boundary. Larger extension under prior approval: 6 m (attached) / 8 m (detached), single storey, height max 4 m; not on article 2(3) land or an SSSIABCD

    Single-storey rear extension: the permitted development limits

    The house in section with a rear extension; the dashed lines mark the zone near the boundary.

    A · Depth beyond the original rear wall
    3 m (attached) / 4 m (detached) beyond the original rear wall, single storey
    B · Maximum height
    4 m
    C · Within the zone near the boundary
    Eaves no higher than 3 m where within 2 m of the curtilage boundary
    D · Larger extension under prior approval
    6 m (attached) / 8 m (detached), single storey, height max 4 m; not on article 2(3) land or an SSSI

    The national limits for each arm

    The side arm must stay inside this: Side extension: single storey, max 4 m high, max half the width of the original house. The rear arm is limited by: 3 m (attached) / 4 m (detached) beyond the original rear wall, single storey.

    Many semis already have a garage or a single-storey side addition. That counts against the total, which is why we measure the original house from old plans or the survey and not from what is there now.

    Where the numbers do not work, a householder application is the answer, and our planning drawings cover how that set is prepared.

    A loft conversion has its own separate allowance, but if you are planning one as well we coordinate the sheets so the whole house is drawn consistently.

    A rear arm that is deeper than the national limit sometimes gets approved on appeal and sometimes not, so do not draw it as a gamble. We would rather show you the largest scheme that sits inside the rules and one stretch version, so you can see what the extra depth would cost in risk.

    Green Belt and heritage in Enfield

    Green-belt polygons cover 37 per cent of the council area. A house inside the Green Belt is judged against the proportionate-addition test, and the original house outline needs to be clear on every drawing.

    The borough has 24 conservation areas, 33 mapped Article 4 direction areas and 301 listed entries. In those areas: On article 2(3) land (conservation areas etc.): no side extensions, no cladding, no rear extension of more than one storey under Class A.

    We check the address against all three layers before quoting.

    Land at the edge of the borough sometimes falls inside the Green Belt even where a street looks like any other suburb. The map is detailed, and a house on the boundary can be inside or outside by a few metres, so we check at plot level.

    Each conservation area has its own appraisal, and we read the one for your street.

    Householder decisions and the household mix

    Enfield decided 934 householder applications in its latest published year, granted 83.4 per cent and decided 92.4 per cent in time.

    About 61.2 per cent of households live in a house, and 52.4 per cent own their home. Garden land covers 21.7 per cent of the borough, which is why rear extensions are so common here.

    These results are for all householder work, and the council's planning team handles a steady flow of cases. We use them to set realistic expectations for timing, not to guess your decision.

    Enfield's long rear gardens give a wraparound room, but the officer will still compare the footprint with the plot. A new room that fills most of the width at the back and runs down the side leaves a thin strip of lawn, and a thin strip is a common reason for a request to cut back.

    Wraparound extension drawings in Enfield: the package

    The council's householder fee is £548. On a semi, the side arm meets the boundary and so needs a party wall notice: Line-of-junction (new wall) notice at least 1 month before work.

    Drawings start at £1,195 including VAT, a second chartered technologist checks each sheet, and we redraw at no charge if the council asks for amendments.

    Compare rear extension drawings in Enfield or house extension drawings in Enfield if you want to look at smaller options, and see architectural drawings in Enfield. Nearby, the same service is covered in Barnet and Haringey.

    If you also want other work on the house, we prepare all the drawings together so every set agrees.

    We keep the model so that any change the council asks for is a small edit, and we redraw at no charge.

    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.
    Finished white-rendered rear house extension with large glazed doors
    Every side considered
    Flick across the turntable to spin it.

    Questions

    Does Enfield grant larger-extension prior approvals?

    Often. In the latest twelve months it granted 35 and refused 27.

    Can prior approval cover a whole wraparound?

    No. It deals only with a larger single-storey rear extension, not a side arm. The total enlargement still counts: Limits apply to the total enlargement (new part plus any existing enlargement it joins).

    How much of Enfield is Green Belt?

    Green-belt polygons cover 37 per cent of the council area.

    What do wraparound drawings cost in Enfield?

    They start at £1,195 including VAT, and the council's householder fee is £548.

    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.