HMO Conversions New Malden

HMO conversion in New Malden turns a family house into a shared house, or brings an existing one up to licence standard. Kingston's Article 4 page lists three directions, and none of them is about houses in multiple occupation, so the planning route here differs from boroughs with an HMO direction. Licensing and fire standards still apply in full. Likely candidates are the larger semis and Victorian houses near the station, and 40% of New Malden homes are semi-detached or detached.

In New Malden, 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 New Malden: 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 New Malden

Class L of the permitted development order allows a change from a house in C3 use to a small C4 HMO for three to six people. Kingston's Article 4 page lists three directions in place: Seething Wells Filter Beds, commercial to residential use, and North Lodge and South Lodge. None of those removes Class L, so a small shared house in New Malden does not need planning permission for the change of use itself. Check the property's own planning history for any condition that restricts it.

If the building is listed, the works themselves are a separate question: anything that affects its character, inside or out, needs listed building consent from Kingston Council, and carrying it out without consent is a criminal offence.

Two limits apply. An HMO for more than six people is sui generis under the London Plan glossary and needs planning permission, and Class L does not permit one house to become two or more separate C4 HMOs. Kingston's Core Strategy Policy DM 14 also lets the council limit the conversion of family units into HMOs where needed. For a large New Malden semi planned for seven or more occupants, the owner's designer makes the planning case before we price the build.

Housing in New Malden

Roughly 7,070 dwellings sit on the valuation list for New Malden. 69% are houses and 31% flats, and by age 33% predate 1919, 33% are interwar and 34% post-war.

HMO licensing in Kingston for a New Malden house

Kingston requires an HMO licence, the mandatory licence, only where 5 or more people forming 2 or more households share facilities, unless the HMO is a flat in a purpose-built block of three or more flats. That matches the GOV.UK definition of a large HMO, rented to 5 or more people who form more than 1 household. The landlord applies for the licence, and each one Kingston issues runs for up to 5 years and specifies the maximum number of occupants. Renting out an unlicensed HMO can lead to an unlimited fine, so the build must meet the conditions before tenants move in.

Kingston counts habitable basements, lofts and converted commercial spaces as additional storeys when reviewing a licence application, which can change the fire precautions a New Malden house needs. A resident landlord can have 2 lodgers before the property counts as an HMO. We build to the licence conditions and supply the measured room schedule the landlord's application needs, so the inspection finds what the plans show. Any later change to room use is checked against the licence before it is built.

Room sizes, toilets and ceiling heights in a New Malden HMO

Kingston sets minimum sleeping room sizes of 6.51 square metres for one person and 10.22 for two in non-licensable HMOs of four or fewer occupiers. Those same figures are the national minimums attached to mandatory licences in England, so we plan every New Malden bedroom to meet them at least, and no room under 4.64 square metres is used for sleeping. Kingston's standards also require a floor to ceiling height of 2.3m in all rooms, with a lower figure for existing attic rooms, which rules out some low rooms on upper floors.

Amenity is counted per tenant. Kingston's minimum for non-licensable HMOs is at least one toilet per 4 tenants, separate from the bathroom unless another facility exists. In practice that means adding a shower room or a separate WC when a New Malden house goes from a family to five or six sharers, and sizing the kitchen and its worktops for the number of occupants. We draw the room schedule against those standards before any wall is moved.

Fire safety, sound and energy in a New Malden HMO

Kingston has adopted the LACORS housing fire safety guidance for HMOs, and the council uses it to set the alarms, doors and escape route a shared house needs. In a New Malden semi that usually means a protected staircase with fire doors to every bedroom and the kitchen, an interlinked alarm and detection system, and emergency lighting where the guidance calls for it. Building regulations Part B applies to the works, so the escape route is designed before partitions go up.

Sound between lettings matters in a shared house, because each room is someone's home. We fit acoustic insulation in new stud walls between bedrooms and under floors where rooms stack. An HMO is let, so the minimum energy efficiency standard applies: since 1 April 2020 a property covered by it cannot be let with an EPC rating below E without a valid exemption. We agree insulation and heating measures with your assessor during the New Malden conversion.

• Insulation and heating upgrades toward the minimum EPC for letting
• Separate WCs and wash basins to the amenity standard
• Bedroom layouts checked against the national minimum room sizes

VOA Council Tax stock of properties, March 2025, for New Malden East and New Malden West. Counts rounded by the VOA.

If you are weighing up hmo conversions in New Malden, it may help to read bathroom renovation in New Malden, hmo conversions across Kingston upon Thames, bathroom fitting in London, kitchen fitting in London, how we handle hmo conversions across London and Small Bathroom Ideas.

Working With GS Renovation in New Malden

An HMO has to pass a licence inspection as well as building control, so the build is planned against both from the start. We draw up the room schedule against Kingston's standards, build the fire precautions in the order the guidance sets, and keep one site manager on the job to handover. You get a written quotation after a survey and a written programme. Registered trades certify the alarm, electrics and any gas work, and we hand you the certificates the licence application needs.

• Every bedroom measured against the national minimum room sizes
• Article 4 and licence position checked before a room is priced
• Rated 4.9 from 31 reviews on MyBuilder

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