HMO drawings · London Borough of Hounslow

HMO drawings in Hounslow, from £945 fixed

Hounslow has needed planning permission to turn a house into a small HMO across the borough since 4 September 2023, outside open land, industrial areas and a few business parks. From 11 December 2025 its fourth additional licensing scheme covers every HMO with three or more people from two or more households.

HMO drawingsfrom £795 drawings + £150 survey (£945 total)

Council fee£610

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Borough or district

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What you want to build

Our fixed fee£795

Council fee, paid to your council£548

Our fee + council fee£1,343

CoverageAll 33 boroughs

Householder application fee, paid to your council at submission.

Plus the Planning Portal's own charge if the application goes through the Portal: up to £149 including VAT, depending on the application type, and some types have none (source).

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Starts at£150

Boroughs33/33

Stages5

Photo: Huy Phan / Pexels

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Send the postcode and what you want to build, and add photos or old plans if you have them. We reply with the fee in writing and the payment stages set out in full.

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Two Victorian terraced houses on a London street, one painted white and one in yellow stock brick, with bay windows — A London terrace. Photo: Huy Phan / Pexels.

What Hounslow Council asks of a HMO conversion

From the council's A4D.2 Dwellinghouses (C3) to small HMOs (C4), borough-wide Article 4 Direction (adopted 8 August 2023 (confirmed), in force 4 September 2023).

Hounslow gave notice of a non-immediate direction (A4D.2) on 6 July 2022, confirmed it on 8 August 2023, and it came into force on 4 September 2023, removing the right to change a house (C3) into a small HMO (C4). (source, checked 25 October 2026)
A4D.2 covers the entire borough except open land, industrial areas, Chiswick Business Park, Bedfont Lakes Business Park and the Mogden Sewage Works. (source, checked 25 October 2026)
The council's Additional Licensing of Houses in Multiple Occupation Scheme (4) 2025, designated on 11 September 2025 for the whole borough, came into force on 11 December 2025 and runs to 10 December 2030. (source, checked 25 October 2026)
It applies to every HMO occupied by three or more persons in two or more households, and to certain section 257 converted buildings where the building and all its flats are in the same ownership or control. (source, checked 25 October 2026)

What Hounslow HMO conversion drawings have to show

Hounslow's direction reaches every residential street, so the starting point for a house-to-HMO change is a planning application with existing and proposed floor plans. We mark each bedroom's floor area and intended occupancy, the shared kitchen and bathrooms, the bin and cycle stores, and the escape route from every bedroom to the front door.

Because the 2025 additional licensing scheme now covers every shared house of three or more people from two households, the planning drawings and the licence application describe the same building. We keep one set of room numbers and areas across both, so the licensing officer can match the house they inspect to the layout the planning officer considered.

PS2 · at a glance

Hounslow: 689 householder decisions

Approvals, prior approvals included78.5%

541 of 689 granted. London: 85.8%.

Decided within 8 weeks97.2%

380 of 391 applications, prior approvals excluded.

Source: MHCLG PS2, 1 July 2025 to 30 June 2026. Dark tick: London.

An open-plan living room with an exposed brick wall, a sofa and a dining table under pendant lights — An open-plan ground floor: knocking rooms together is where a beam, and structural calculations, come in. Photo: Max Vakhtbovych / Pexels.

What it costs in Hounslow

HMO drawings: from £795 drawings + £150 survey (£945 total), plus £610 to Hounslow Council.
Where a change of use application is required.

HMO drawings across London · Hounslow planning rules · every price

Answers

Hounslow HMO conversion questions

Is all of Hounslow covered by the HMO Article 4 direction?

Nearly all of it. Direction A4D.2, in force since 4 September 2023, covers the whole borough except open land, industrial areas, Chiswick Business Park, Bedfont Lakes Business Park and the Mogden Sewage Works. For any house in a residential street, a change to a small HMO needs planning permission.

Does a three-person shared house in Hounslow need a licence?

Yes, if the three people form two or more households. Hounslow's Additional Licensing Scheme (4) 2025 came into force on 11 December 2025 for the whole borough and runs to 10 December 2030. It also covers some converted buildings of flats in single ownership. Planning permission is a separate requirement.

What drawings does a Hounslow HMO planning application need?

Existing and proposed floor plans showing each bedroom's area and occupancy, the shared kitchen, bathrooms and living space, plus the bin and cycle storage. We draw these from one measured survey and keep the same room numbers for the licence application, so the two Hounslow applications describe the same house.

Start with £150

Your fixed fee is already on this page.

Tell us the postcode and what you want to build. We confirm the fee in writing and book the survey.

Get my fixed fee 020 7131 9703

Measured surveyWithin five working days

£150

Existing drawingsThe building as it stands

£175

Proposed drawingsYour scheme, revised until right

£225

Planning application packForms, statements, OS plans

£125

Submission and agent servicePortal submission, queries handled

£120

Total, planning application£795