HMO Conversions Brent

HMO conversion in Brent is controlled at both ends: planning for the change of use and licensing for the letting. Brent's article 4 direction brought the change from a family house (C3) to a small HMO (C4) under planning control from 1 November 2022 outside the Growth Areas and the OPDC area, and its Additional HMO licensing designation covers the whole borough. The HMO SPD then sets room sizes, kitchens and WCs above the national minimums. We build the conversion or the upgrade to the permission and licence conditions the landlord holds.

In Brent, a light HMO conversion for four to six tenants typically costs £40,000 to £75,000 in construction, or £90,000 to £150,000 with an en-suite to every bedroom (indicative London ranges, Mayfair Studio and LetCompliance, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Brent: we build the fire doors, detection, bathrooms and kitchens to the council's HMO standards, the landlord applies for the licence, and a registered electrician certifies the electrics.

Planning for a shared house in Brent

In Brent a change from a family house to a small shared house needs planning permission outside a few named exceptions. Nationally, Class L makes a change from C3 to C4 permitted development, but Brent's article 4 direction removing that right was confirmed on 3 February 2022 and took effect on 1 November 2022. Brent's HMO SPD says the requirement does not apply in the OPDC area, the Church End Growth Area site allocations or the other seven Growth Areas.

Two further Brent tests decide whether a scheme is likely to succeed. Local Plan Policy BH7 treats an area as over-concentrated where three or more of the ten nearest properties are already HMOs, and the HMO SPD requires a PTAL of at least 3. A shared house for more than six people is sui generis under the London Plan glossary and needs planning permission everywhere, whatever the article 4 position. Your designer checks these before the scheme is drawn in detail.

Housing in Brent

Roughly 135,080 dwellings sit on the valuation list for Brent. 38% are houses and 62% flats, and by age 28% predate 1919, 32% are interwar and 40% post-war.

Mandatory and additional HMO licences in Brent

A Brent HMO needs a licence as well as planning, and the size of the household decides which one. A mandatory HMO licence is needed where five or more people in two or more households share a kitchen, bathroom or toilet. A flat in a purpose-built block of three or more flats falls outside mandatory licensing. Brent's Additional HMO licensing designation came into force on 2 February 2026, applies to the whole borough, and covers privately rented properties occupied by three or four people forming two or more households.

So in Brent every shared house let to three or more people from two or more households needs one licence or the other. The landlord or managing agent applies for the licence, and the licence conditions then set the standard the building has to meet. We build to those conditions, and GOV.UK says renting out an unlicensed HMO can lead to an unlimited fine, so the works are timed to be finished and certified before tenants move in rather than done around them.

Room sizes, kitchens and WCs under the Brent HMO SPD

Brent's HMO SPD sets bedroom sizes by the London Plan standard. A single bedroom must be at least 7.5m2 and 2.15m wide, and a two person room at least 11.5m2 and 2.55m wide, excluding any en-suite space. The SPD treats the London Plan D6 floorspace standards as the minimum acceptable bedroom sizes to gain planning permission, so a small back bedroom that works in a family house may not count as an HMO room in Brent. The national minimum room sizes that are mandatory licence conditions are smaller, and both are measured on usable floor area. In Brent the planning figures set the layout.

Shared space is sized too. The SPD asks for a kitchen of at least 5.5m2 for every 3 households or 5 people, whichever is lower, and one separate WC room for every five occupants, at least 1.3 x 0.9m. It expects 5m2 of internal communal amenity space per resident including the kitchen. In a house of up to 3 storeys the kitchen should only be on the ground floor, which fixes where drainage and extraction go.

Fire doors, alarms and escape in a Brent HMO

Fire safety is the largest part of the building work in a Brent HMO conversion. Each bedroom door becomes a self-closing fire door, the stair becomes a protected escape route with fire resisting walls and ceilings, and an interlinked mains-wired detection and alarm system covers the escape route and the rooms the fire risk assessment calls for. LACORS housing fire safety guidance is the recognised guide for the level of protection by storey height and occupancy. A change from C3 to C4 is not a material change of use under the building regulations, but the building work done for it still has to comply with Part B.

Sound and energy come next. Bedrooms that share a wall become separate lettings, so upgrading sound insulation in walls and floors reduces complaints between tenants. Since 1 April 2020 a property covered by the MEES Regulations cannot be let below an E rating without a valid exemption, so insulation and heating form part of the scope. Brent's HMO SPD also normally seeks 20m2 of ground floor outdoor amenity space, which affects any rear extension.

• Extra shared bathrooms and shower rooms
• Emergency lighting on the escape route where the house needs it
• Large HMO conversions for seven or more, once planning is granted

VOA Council Tax stock of properties, March 2025, for all 35 statistical areas in Brent. Counts rounded by the VOA.

Once you know the scope of the hmo conversions in Brent, it helps to read bathroom renovation in Brent, our Brent area guide, what a main building contractor does, what a kitchen fit covers, our London hmo conversions page and Small Bathroom Ideas.

Why Choose GS Renovation in Brent

An HMO job is judged by the licence inspection and the tenants, so we build it to the standard on paper before the first viewing. We visit, read the planning permission and the licence conditions or the council's schedule of works, and give you a written quotation that lists fire doors, detection, kitchens, WCs and room changes separately. A registered electrician certifies the alarm and wiring, and gas work is done by an engineer on the Gas Safe Register. The landlord applies for the licence.

• Existing HMOs brought up to licence conditions, fire works first
• One point of contact on the phone, not a call centre
• Fire doors, closers and seals fitted to every door on the escape route

Reviewed jobs near Brent

1 MyBuilder review from Wembley, with each customer's own job title:

• Install new worktop, Wembley, 10 Jul 2024 (5 out of 5)

Read all 31 on our reviews page.

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254).