HMO Conversions Streatham

HMO conversion in Streatham is tightly controlled. Since 11 August 2025 an Article 4 Direction has removed the right to turn a house into a small HMO in Streatham Common and Vale and Streatham St Leonard's wards. Lambeth's additional HMO licensing scheme also applies borough-wide to shared homes of three or more individuals that mandatory licensing does not catch. For a landlord, planning and licensing come before any building work. We then build the fire doors, detection, kitchens and bathrooms to the licence conditions and the approved drawings.

Mandatory licensing does not reach a flat in a purpose-built block of three or more self-contained flats; where such a flat is shared, it is the council's additional scheme, if any, that applies.

In Streatham, 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 Streatham: 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 the Streatham wards

In two Streatham wards, a house can no longer become a small HMO without planning permission. Class L of the national permitted development order normally allows a change from a C3 dwellinghouse to a C4 HMO. Lambeth's Article 4 Direction withdrawing that right in Streatham Common and Vale and Streatham St Leonard's wards came into force on 11 August 2025. Check which ward the address sits in before you buy, because the answer changes the whole route.

Wherever planning permission is needed, the application is judged against Policy H9, which supports new HMOs only where they do not lose family housing as defined in Policy H6. In every ward, Class L does not allow one house to become two or more separate C4 HMOs. Whatever the ward, Lambeth says renting an HMO to seven or more people needs planning permission for a change of use, because the London Plan treats HMOs for more than six people as sui generis.

Housing in Streatham

Streatham counts roughly 27,640 homes for Council Tax; 43% are older than 1919, 27% interwar and 29% post-war, with 67% flats and 33% houses.

Mandatory, additional and selective licensing in Streatham

Almost every shared house here needs a licence. GOV.UK defines a large HMO as one rented to 5 or more people forming more than 1 household, which triggers mandatory licensing. Lambeth's additional HMO licensing scheme is borough-wide and applies to any property occupied by three or more individuals not captured by mandatory licensing. The landlord or their agent applies for the licence, and we build to the conditions it sets.

The first phase of Lambeth's Selective Licensing Scheme came into force on Monday 2 September 2024 in Knights Hill and three Streatham wards, so a single-household let in those wards may also need a licence. Lambeth charges the HMO licence fee per habitable room, so the number of letting rooms drives the fee as well as the rent. GOV.UK says renting out an unlicensed HMO can lead to an unlimited fine, so the licence should be granted before tenants move in.

Room sizes, kitchens and bathrooms for Streatham sharers

Every licence in England carries the same floor area rules for bedrooms in a Streatham shared house. One sleeper over 10 needs 6.51 square metres, two need 10.22, and a room under 4.64 square metres is not slept in at all. In an Edwardian terrace the back bedroom over the rear return and the box room at the front are the rooms to measure first. Measure every room at the start, because the count of lawful bedrooms decides the licence, the rent and the layout of shared space.

The council also sets amenity conditions on how many sharers each kitchen, bathroom and WC serves, and those conditions form part of the licence. Plan the shared kitchen with enough worktop, sinks, cooking rings and storage for the number of occupants, and add a second bathroom or a separate WC before carving out another bedroom. Extract fans in every wet room and kitchen reduce condensation complaints once the house is full.

Fire safety, sound and energy in a Streatham HMO

Fire safety in a shared house follows Part B for any building work and LACORS housing fire safety guidance, which councils use as the recognised guide. In a three storey Streatham terrace that normally means fire doors with self-closers on every letting room and the kitchen, interlinked smoke and heat detection, and a protected stair to the front door kept clear of storage. Old lath ceilings under the stair are often upgraded with fire-rated board.

Sound insulation between rooms keeps complaints down, especially in a party wall terrace with neighbours on both sides. Energy rating matters too: since 1 April 2020 landlords cannot let or continue to let properties covered by the MEES Regulations with an EPC rating below E without a valid exemption. Loft and floor insulation, efficient heating and controls go in during the strip-out, when floors are up and access is easy, rather than as a later retrofit around tenants.

• Self-closing fire doors and frames to every bedroom and the kitchen
• Insulation and heating upgrades toward the minimum EPC for letting
• Snagging before the council's licence inspection

VOA Council Tax stock of properties, March 2025, for all 7 statistical areas in Streatham. Counts rounded by the VOA.

If you are weighing up options for your Streatham property, it is worth reading bathroom renovation in Streatham, hmo conversions across Lambeth, what a main building contractor does, how snagging works at handover, hmo conversions across London and Kitchen Renovation Cost.

Working With GS Renovation in Streatham

An HMO has to pass the licence inspection before it earns rent, so the fire, room and amenity details must be right first time. We build from your planning position and the licence conditions, measure each room before layout, and install fire doors, detection and the protected stair before the finishes. Kitchens, bathrooms and insulation follow in one programme under one site lead, and you receive the completion records your agent needs for the licence application and inspection.

• Finished and snagged before the council's licence inspection
• Site left safe and secure at the end of every day
• Existing HMOs brought up to licence conditions, fire works first

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