HMO Conversions Kingston

HMO conversion in Kingston upon Thames turns a family house into a shared house, or brings an existing one up to licensing standard. Kingston requires an HMO licence where 5 or more people forming 2 or more households share facilities, has adopted the LACORS fire safety guidance, and sets its own room size and amenity standards. Policy DM 14 lets the council limit family homes becoming HMOs. You apply for the licence; we build the rooms, kitchens and fire precautions it will be judged against.

In Kingston upon Thames, 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 Kingston upon Thames: 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 an HMO in Kingston upon Thames

A house share is a different route from self-contained flats. Class L permitted development allows a change from a C3 house to a C4 HMO, and a share for more than six people is sui generis and needs planning permission. Kingston upon Thames lists three Article 4 Directions: Seething Wells Filter Beds, commercial to residential use, and North Lodge and South Lodge. Two are tied to named sites and the third to commercial to residential change, so the list holds no direction on C3 to C4, although Policy DM 14 lets the council limit conversions of family units into HMOs where needed.

Class L has a limit worth knowing: it does not allow a single house to become two or more separate C4 HMOs. The London Plan asks boroughs to protect HMOs of a reasonable standard and to weigh their strategic role when considering an Article 4 on C3 to C4 changes. For a landlord that means checking the planning position for the specific house, and for larger shares the application, before any rooms are laid out.

Housing in Kingston upon Thames

Kingston upon Thames' housing, as the Council Tax list records it, is about 70,440 homes: 59% houses, 42% flats, with 21% pre-1919, 34% interwar and 45% built since 1945.

HMO licensing rules in Kingston upon Thames

Licensing turns on numbers. Kingston upon Thames requires an HMO licence only where 5 or more people forming 2 or more households share facilities, and it counts habitable basements, lofts and converted commercial spaces as extra storeys when reviewing an application. Licences run for up to 5 years and set a maximum number of occupants. The landlord makes the application, and the maximum occupancy written on the licence is what the room sizes and kitchens have to support.

Some shared homes sit outside licensing but not outside standards. Kingston says purpose-built blocks with more than 3 flats do not need an HMO licence but may still have to meet fire and amenity standards, and a resident landlord can have 2 lodgers before the property is classed as an HMO. GOV.UK says renting out an unlicensed HMO can lead to an unlimited fine, so the licence is applied for before the extra tenants move in.

Room sizes, kitchens and bathrooms in a Kingston upon Thames HMO

Room sizes decide how many people the house can take. For non-licensable HMOs of four or fewer occupiers, Kingston upon Thames sets minimum sleeping rooms of 6.51 square metres for one person and 10.22 for two, the same figures that apply nationally as mandatory licence conditions. We measure every room on the survey, because a partition, a boxed in pipe or a chimney breast can take a room below the line. Where a room falls short, it can become a study or storage rather than a bedroom.

Amenities come next. Kingston's minimum standard for non-licensable HMOs is at least one toilet per 4 tenants, separate from the bathroom unless another facility exists. Its HMO standards also require 2.3m floor to ceiling height in all rooms, with a lower figure for existing attic rooms. We lay out kitchens with enough worktop, sinks and cooking points for the occupancy, and plan extra shower rooms where the drainage runs allow.

Fire safety, sound and energy in Kingston upon Thames HMOs

Fire safety is the heart of an HMO conversion. Kingston upon Thames has adopted the LACORS housing fire safety guidance for HMOs, which sets out protected escape routes, fire doors with self-closers to bedrooms and kitchens, and interlinked detection and alarms suited to the size of the house. Under Part B we fire stop every service penetration. Because Kingston counts habitable basements and lofts as extra storeys, an existing habitable loft or basement can change the level of protection the stair needs.

Lettings side by side need sound and energy work too. We add insulation and resilient layers to walls and floors between bedrooms, which cuts disputes between tenants. Since 1 April 2020 landlords cannot let a property covered by the MEES Regulations with an EPC rating below E without a valid exemption, so insulation, heating and controls are planned into the same programme rather than left for later. A fresh EPC after the works gives you the rating to show on the licence file.

• Thumb-turn bedroom locks that open from inside without a key
• Small HMO conversions for three to six sharers
• En-suite shower rooms added to bedrooms

VOA Council Tax stock of properties, March 2025, for all 20 statistical areas in Kingston upon Thames. Counts rounded by the VOA.

Useful next reading for a hmo conversions project in Kingston upon Thames: bathroom renovation in Kingston upon Thames, our Kingston upon Thames area guide, what a main building contractor does, what a snagging list covers, hmo conversions anywhere in London and Getting Planning Permission.

Working With GS Renovation in Kingston upon Thames

An HMO has to pass the licensing officer's inspection as well as building control, and we build for both. We set out rooms against the size standards before the partitions go up, fit the fire doors, detection and escape route the LACORS guidance calls for, and keep a record of every fire stopped penetration. Kitchens and bathrooms are sized for the number of occupants you plan to license. At handover you get the certificates from the registered trades for your licence application.

• Detection laid out to the grade the council's HMO fire guidance sets
• En-suites placed only where a soil stack can serve them
• Free follow-up visit after completion if anything needs attention

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