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Camden, London

HMO conversion drawings in Camden

Camden's recent change is in licensing, not planning: a third borough-wide scheme has just replaced the one that ran for five years. Our HMO conversion drawings in Camden start from £879 and are drawn so that the layout passes the licence the council now applies.

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

  • MCIAT chartered
  • £2m PI insured
  • LABC Partnered
  • 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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    The planning position on the council's own page

    The council's Article 4 page for land-use classes covers one subject: Class E premises turning into homes. The finding for the small-HMO question is no HMO Article 4 direction on the land-use page. The national position therefore stands, and it reads: C3 to C4 is permitted development unless an Article 4 direction removes it.

    The class is small by definition (Class C4: not more than six residents). Anything larger needs planning permission whatever the council has or has not directed. Camden also has other Article 4 directions, so check your street before assuming that the permitted route is clear.

    We confirm the lawful use of the address first. A flat, a house with a planning condition, or a listed building can each change the answer.

    Pencil resting on a dimensioned technical drawing beside a scale rule

    Local figures for Camden

    Figures with their unit, period and source
    MeasureValuePeriodSource
    The council's Article 4 page for land-use classes covers Class E to dwellings only; it lists no direction removing the C3 to C4 right, so a small HMO is not caught by a Camden HMO direction on that page.no HMO Article 4 direction on the land-use page—camden.gov.uk, Council page: Article 4 directions, land use classes, page text
    A third borough-wide additional HMO licensing scheme came into force on 8 December 2025, replacing the scheme that ran from December 2020 for five years. It applies to any property occupied by three or more people forming two or more households, and mandatory licensing applies at five or more.borough-wide from 8 December 2025—camden.gov.uk, Council page: Houses in multiple occupation, licensing summary
    GPDO Sch 2 Pt 3 Class LC3 to C4 is permitted development unless an Article 4 direction removes it—legislation.gov.uk
    Use Classes Order 1987, Class C4Class C4: not more than six residents—legislation.gov.uk
    Households living in a house13.3 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.uk
    Conservation areas40 named conservation areas published by the council—planning.data.gov.uk
    Listed building entries1,971 list entries (Historic England, within the LPA boundary)—planning.data.gov.uk
    Article 4 directions21 Article 4 directions published by the council—planning.data.gov.uk
    Minor application decisions868 decisions1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Minor applications granted89.4 %1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Minor applications decided in time80.3 % decided within 8 weeks or an agreed extended period1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Mayoral CIL charging band1 MCIL2 charging band (1-3)—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 Camden
    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

    The licence scheme that replaced the old one

    The council's HMO page says a third borough-wide additional licensing scheme borough-wide from 8 December 2025. It applies to any property occupied by three or more people forming two or more households, and also to converted buildings that do not meet the Building Regulations standard for converted flats where fewer than half the flats are owner-occupied.

    Operating a licensable HMO without a licence is an offence, and the council publishes changes to its standards between schemes, so a layout approved under the old scheme may need rework. We draw against the current standards.

    Our HMO licence application pack builds on the same drawings, which is the saving for a landlord who is already paying for a survey.

    What the drawings must resolve

    We prepare existing and proposed plans with measured bedroom areas, the shared kitchen and bathrooms, the escape route and the fire detection layout. In Camden the typical building is a tall terrace or a mansion flat, and the stair is usually the constraint.

    Only 13.3 per cent of households here live in houses, so many conversions are large flats or maisonettes, where the lease and the freeholder come into the picture along with the council. If structure must change, see structural calculations.

    Heritage and the council's record

    Camden has 40 conservation areas and 1,971 Historic England list entries, and 21 Article 4 directions of all kinds. Internal changes to a listed building usually need listed building consent.

    Where an application is needed, it is a minor one. Camden decided 868 minor applications in the latest published year, granted 89.4 per cent and decided 80.3 per cent in time.

    Levy and the alternatives

    Camden sits in Mayoral levy band 1. A change of use with no new floor area may fall outside the levy, and the borough's own schedule applies to new floorspace.

    To compare with self-contained flats, see flat conversion drawings in Camden. The borough overview is architectural drawings in Camden.

    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.
    Rear view of brick terraced houses in London with slate roofs and chimney stacks along the shared roofline
    Unit by unit
    Move up and down — the nearest units slide out.

    Other services in Camden

    HMO conversion drawings nearby

    Questions

    Does Camden have an Article 4 direction for HMOs?

    The council's land-use Article 4 page shows no HMO Article 4 direction on the land-use page, so the national permitted route applies unless another restriction does.

    When did Camden's current HMO licensing begin?

    The council says the third borough-wide additional scheme borough-wide from 8 December 2025.

    How many minor applications does Camden decide in time?

    80.3 per cent of 868 decisions in the latest published year.

    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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