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

Waltham Forest, London

HMO conversion drawings in Waltham Forest

Waltham Forest has controlled small HMOs for longer than most London councils, which means a landlord here is often buying a house whose shared use is either lawful, unlawful or unproven. Our HMO conversion drawings in Waltham Forest start from £879 and we begin by finding out which of the three you are dealing with.

From £679 drawings + £200 survey (£879 total), no VAT to add

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  • £2m PI insured
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  • Fixed fees, no VAT to add

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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 hmo conversion drawings

    Seven 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.

    Free redraws until approval. Every drawing set is checked independently, and the checker is never the person who drew it.

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    An old direction with a clear cut-off

    The council's planning page states that an Article 4 direction is in place across the borough, and gives its reach as borough-wide from 16 September 2014. Any HMO of three to six people created after the cut-off date must have appropriate planning consent. HMOs for seven or more have needed authorisation for many years.

    The practical question for a buyer is when the shared use began. The council says an HMO should hold a permission or be able to show established use, and a landlord who can demonstrate use before the cut-off may not need further consent. We help you gather that evidence: tenancy dates, council tax, utility records and licence history.

    If the use began after the date and has no consent, the way forward is a retrospective application, not a certificate. Our retrospective planning application service deals with that, and we draw the property as it stands before anything is altered.

    Upper floors of a large yellow-brick Victorian house in London with chimney pots

    Local figures for Waltham Forest

    Figures with their unit, period and source
    MeasureValuePeriodSource
    An Article 4 direction is in place across the borough: any HMO of three to six people created after 16 September 2014 (Class C4) must have appropriate planning consent. HMOs for seven or more people have needed planning authorisation for many years.borough-wide from 16 September 2014—walthamforest.gov.uk, Council page: Planning permission and HMOs, Article 4 section
    The council takes the planning status of an HMO into account in the licence process; for unauthorised use it will likely grant a licence with a reduced term, usually one year, and the landlord should fix the breach within that period.usually a one-year licence without consent—walthamforest.gov.uk, Council page: Planning permission and HMOs, licensing and planning section
    The current additional HMO licensing scheme covers properties occupied by three or more people outside mandatory licensing, and purpose-built block flats where more than three people live in a flat; it started in April 2025 and, per the council page, expires on 31 May 2030.April 2025 to 31 May 2030—walthamforest.gov.uk, Council page: Additional HMO licensing, scheme summary
    Households living in a house55.1 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.uk
    Minor application decisions525 decisions1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Minor applications granted76.6 %1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Minor applications decided in time89 % decided within 8 weeks or an agreed extended period1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Conservation areas15 named conservation areas published by the council—planning.data.gov.uk
    Green Belt share of the council area22 % of council area covered by green-belt polygons—planning.data.gov.uk
    Borough CIL residential rate£108.79/m² (Zone A, north of North Circular); £117.15/m² (Zone B, south of North Circular)rate for planning permissions granted 1 January to 31 December 2026 (schedule rates £65 / £70)walthamforest.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 Waltham Forest
    Building regulations, layer by layerPart A: structure: Approved Document A: Structure, 2004 edition incorporating 2004, 2010 and 2013 amendments. Part B: fire safety: All dwellings: fire detection and alarm system minimum Grade D2 Category LD3 (BS 5839-6), mains-operated smoke alarms to BS EN 14604. Part L: insulation: 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. Part K: stairs: 2.0 m clear headroom over stairs. Full plans application: Building control body must decide a full plans application within 5 weeks, or longer if agreed in writingPart A: structurePart B: fire safetyPart L: insulationPart K: stairsFull plans applicationABCDE

    Building regulations, layer by layer

    The Approved Documents that shape most house projects, from structure to the application itself.

    A · Part A: structure
    Approved Document A: Structure, 2004 edition incorporating 2004, 2010 and 2013 amendments
    B · Part B: fire safety
    All dwellings: fire detection and alarm system minimum Grade D2 Category LD3 (BS 5839-6), mains-operated smoke alarms to BS EN 14604
    C · Part L: insulation
    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
    D · Part K: stairs
    2.0 m clear headroom over stairs
    E · Full plans application
    Building control body must decide a full plans application within 5 weeks, or longer if agreed in writing

    How the licence team treats planning status

    The licence is decided by a different team, but it reads the planning position. The council says it takes planning status into account, and for unauthorised use it will likely grant a licence for a reduced term, which it describes as usually a one-year licence without consent. The landlord must then return the house to family use or obtain consent within that period.

    That turns a missing consent into a ticking clock. We therefore recommend sorting planning before the licence application, not alongside it, so the first licence is a full-term one.

    The current additional licensing scheme covers properties of three or more people outside mandatory licensing, and runs April 2025 to 31 May 2030. Our HMO licence application pack uses the same measured plans.

    What a planning set shows

    We survey the house, then draw each floor as existing and as proposed, with the area of every bedroom marked, the shared kitchen and bathrooms, the stair and escape route, and the garden left for residents. A room schedule lets the officer check the figures without measuring the PDF.

    Waltham Forest has a high share of houses, 55.1 per cent of households, so many conversions begin as family terraces where the rear addition is the main space question. See rear extension drawings in Waltham Forest if you plan to build out, and loft conversion drawings for the roof.

    How the council decides

    A new shared house is a minor application. The council decided 525 of these in its latest published year, granted 76.6 per cent and decided 89 per cent in time. The borough also has 15 conservation areas.

    Green Belt covers 22 per cent of the borough, which matters if you intend to extend as well as convert.

    Levy and alternatives

    The council's charging schedule reads: £108.79/m² (Zone A, north of North Circular); £117.15/m² (Zone B, south of North Circular). A change of use alone may fall outside it, though an extension may not.

    For self-contained flats instead of a shared house, see flat conversion drawings in Waltham Forest, and for the wider service the borough overview is architectural drawings in Waltham Forest.

    What you receive

    Building regulations section drawing showing the construction build-up
    Sample drawing. Building regulations section showing construction build-up for a building control check.
    Red-brick mansion blocks and shopfronts on a street corner
    Unit by unit
    Move up and down — the nearest units slide out.

    Other services in Waltham Forest

    HMO conversion drawings nearby

    Questions

    Does Waltham Forest need planning permission for a small HMO?

    Yes. The council gives the direction's reach as borough-wide from 16 September 2014, and a three-to-six-person HMO created after that needs consent.

    What happens if I licence an HMO without planning consent?

    The council will likely grant a shorter licence: usually a one-year licence without consent.

    How long does the current additional licensing scheme last?

    It runs April 2025 to 31 May 2030, according to the council page.

    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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