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Greenwich, London

Wraparound extension drawings in Greenwich

Greenwich decides a lot of larger-extension prior approvals and sits around a World Heritage Site, which pulls a wraparound extension in two directions at once. We prepare wraparound extension drawings for Royal Greenwich homes from £1,195 including VAT, matching the route to the street.

From £1,195 (VAT included)

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

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We use it to check conservation areas and constraints.
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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.

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

    Prior approval in Greenwich: almost an even split

    In the latest twelve months Greenwich granted 82 larger home extension prior approvals and refused 76, near enough half each way. The volume shows how often owners reach for the route.

    That even split is a warning that the outcome depends on the detail: the neighbour's windows, how the extension meets the boundary, and how the new roof sits. A wraparound on prior approval has the added limit that the national rule counts the two arms together: Limits apply to the total enlargement (new part plus any existing enlargement it joins).

    We draw the neighbour's side and rear windows accurately, because that is often where an even-handed decision turns.

    When we draw for Greenwich, we often include a neighbour-window study as a separate sheet, with the lines of sight and the extent of overshadowing marked. It is a short document that answers the neighbour question before it is asked.

    Finished white-rendered rear house extension with large glazed doors

    Local figures for Greenwich

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Larger home extension prior approvals granted82 decisions2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk
    Larger home extension prior approvals refused76 decisions2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk
    worldHeritageSites1 World Heritage Sites intersecting the LPA boundary—planning.data.gov.uk
    Conservation areas23 named conservation areas published by the council—planning.data.gov.uk
    Listed building entries540 list entries (Historic England, within the LPA boundary)—planning.data.gov.uk
    Householder decisions624 decisions1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications granted77.1 %1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications decided in time94.2 % decided within 8 weeks or an agreed extended period1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Households living in a house48.4 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.uk
    Domestic gardens share of land (GLUD 2005)23.2 % of land that is domestic garden (GLUD 2005)2005data.london.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 Greenwich
    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 Royal Greenwich local plan and the World Heritage Site

    The council's Royal Greenwich Local Plan: Core Strategy with Detailed Policies dates from 2,014, so officers rely on it with design guidance and precedent. Greenwich contains 1 World Heritage Site, around Greenwich Park and the Old Royal Naval College, and development within its setting is read with extra care.

    Greenwich has 23 conservation areas and Historic England lists 540 entries in the borough. 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.

    A wraparound near the park or in a protected area is therefore a planning application, and the drawings should show how it is seen from the public realm.

    Parts of the borough sit on slopes toward the river, so the ground level at the back of a house can be well below or above the front. That affects the height of the extension against the neighbour's fence, and we draw sections through the boundary to show it exactly.

    Where the house is in a conservation area, the appraisal for that area lists the materials and details the council wants kept. We choose brick, roof finish and window frames from that list.

    Outside the protected areas, Greenwich's policies still ask for a design of good quality that responds to its surroundings. For a wraparound that means matching the brick, keeping window heads in line with the house and avoiding a bulky flat roof edge on the street side.

    Greenwich households and gardens

    Under half of households, 48.4 per cent, live in a house, and 41.1 per cent own their home. The house stock splits between Victorian terraces in the north and interwar estates in the south-east, and each suggests a different wraparound.

    Domestic gardens cover 23.2 per cent of the borough's land. In the terraces the garden is narrow, so a side infill and rear arm can use most of it, and the council looks hard at how much garden remains.

    On many semis the side gap is the path to the back garden. Closing it with a side arm removes access for bins and bikes, so the plans must show where those go instead.

    Householder decisions in Greenwich

    Greenwich decided 624 householder applications in its latest published year. It granted 77.1 per cent, and decided 94.2 per cent in time.

    We read the grant rate as a call for careful design rather than a bar. Where we can, we shape the extension to match what the council has accepted on the same road.

    Greenwich also has an Article 4 direction for houses in multiple occupation, which is relevant if you plan to let rooms after the work.

    The numbers describe the whole borough, from the riverside to the south-east, and your street may behave differently. Use them as a guide to the climate and not a prediction.

    Householder applications also carry a timing risk, and the council's in-time figure is the one to watch when you plan builders. We suggest keeping a buffer in the programme and not booking a start until a decision is issued.

    Wraparound extension drawings in Greenwich: the package

    The council's householder fee is £548. Glazing needs thought on a corner kitchen: Windows, roof windows, rooflights and doors in an extension should not exceed 25% of the extension floor area plus the area of openings removed or covered. A new boundary wall needs 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 Greenwich and house extension drawings in Greenwich, or see architectural drawings in Greenwich. The same service is covered in Lewisham and Bexley.

    Because Greenwich has so many prior approvals, a neighbour may already have been through the process on your street. A short look at the council's online register often shows which designs passed, and we use that to shape yours before drawing the final sheets.

    We also keep the model after issue, so a revised set is a quick edit if the council asks for changes.

    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.
    Two-storey rear extension under construction on a semi-detached house
    Every side considered
    Flick across the turntable to spin it.

    Other services in Greenwich

    Wraparound extension drawings nearby

    Questions

    How many larger-extension prior approvals does Greenwich decide?

    In the latest twelve months it granted 82 and refused 76.

    Does the World Heritage Site affect a wraparound?

    It can, if your house is within its setting. Greenwich contains 1 World Heritage Site, and the council reads nearby proposals with extra care.

    How many householder applications does Greenwich grant?

    In its latest year it granted 77.1 per cent of 624 decisions.

    What do wraparound drawings cost in Greenwich?

    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.

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