HMO Conversions Mitcham

HMO conversion in Mitcham starts with planning, not building. Every part of Merton, Mitcham included, now needs planning permission before a family house becomes a small HMO. Merton's additional HMO licence also covers the Mitcham wards of Cricket Green, Figge's Marsh and Lavender Fields. So a landlord needs planning permission and often a licence before a house can be shared. We build the rooms, kitchens, bathrooms and fire protection to the consent and the licence standards.

In Mitcham, 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 Mitcham: 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 Mitcham under Merton's Article 4 Direction

Merton's immediate Article 4 Direction for small HMOs in seven wards started on 17 November 2022, and Merton has also removed permitted development for turning a C3 house into a small HMO across the whole borough. In Mitcham, any plan to let a house to three or more sharers from different households therefore starts with a planning application by the owner or their agent. We only begin the building work once that is granted. Until then we can survey and price, but not strip out.

An HMO for more than six people is sui generis under the London Plan glossary and needs planning permission everywhere. Nor can Class L be used to divide one house into a pair of C4 HMOs. On the other side, Policy H11.5 in Merton's Local Plan resists schemes that lose HMOs overall unless set conditions are met. An existing HMO in Mitcham is therefore protected as well as restricted, and taking one back to a family house needs its own planning check.

Housing in Mitcham

The valuation list shows roughly 10,560 homes in Mitcham, of which 10% are pre-1919, 38% interwar and 51% post-1945, split 46% flats to 53% houses.

Mandatory and additional HMO licences across the Mitcham wards

A mandatory licence applies in Merton once 5 or more people from more than one household share an HMO, other than a purpose-built flat in a block of 3 or more flats. Below that, Merton's additional HMO licence covers HMOs with 3 or 4 occupiers forming more than one household in seven wards, including the Mitcham wards of Cricket Green, Figge's Marsh and Lavender Fields. Both schemes attach property conditions.

Merton's Cabinet agreed that selective and additional landlord licensing in Merton would come into effect in September 2023; the additional scheme is the one that reaches small HMOs. Letting an HMO without the licence it needs can bring an unlimited fine, according to GOV.UK, so the licence position for a Mitcham address is settled before the rooms are let. The landlord applies for the licence. We work from the licence conditions and the inspection report, and finish every item on that schedule before the council visits.

Room sizes and shared kitchens in a Mitcham HMO

Merton sets a bedroom at 6.51 square metres or more for one sharer over 10, and at 10.22 or more for two. Under 4.64 square metres a room cannot be slept in at all, and floor under a ceiling of 1.5 metres or lower is left out of the measurement. In a Mitcham terrace the box room over the stairs and rooms under a sloping ceiling are the ones most likely to fail, so we measure usable floor area before the layout is fixed.

Under Merton's amenity standards one shared kitchen serves 5 people at most, it needs 2m2 of floor for each of them, and there is one worktop for every three sharers. Once a house holds 6 to 10 occupants, Merton wants 2 bathrooms and 2 toilets as a minimum, with one WC in its own room with a basin. That often means a second bathroom in the back addition and a larger kitchen, planned before any bedroom walls move.

Fire protection, sound and energy in a Mitcham shared house

Fire safety in a Mitcham HMO is about the escape route. Each bedroom typically gets a self-closing fire door, the hall and stair are upgraded into a protected escape to the street door, and interlinked detectors cover every room and landing. We follow the LACORS guidance on housing fire safety, Part B applies to the building work, and the licence conditions set the final list we build to, with a registered electrician certifying the alarm system.

Sharers in separate rooms hear each other through timber floors and stud walls, so we add sound insulation between bedrooms and under floors where the layout puts a bedroom over a kitchen. The house also has to meet MEES: since 1 April 2020 landlords cannot let, or continue to let, a property covered by the regulations with an EPC below E without a valid exemption. Insulation and heating upgrades go in at first fix, while the walls are open in the Mitcham house.

• Small HMO conversions for three to six sharers
• Thumb-turn bedroom locks that open from inside without a key
• Self-closing fire doors and frames to every bedroom and the kitchen

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

If this is your first project in Mitcham, these are worth a look: bathroom renovation in Mitcham, hmo conversions across Merton, what a main building contractor does, kitchen fitting in London, how we handle hmo conversions across London and Kitchen Renovation Cost.

The GS Renovation Difference in Mitcham

An HMO conversion in Mitcham has to satisfy planning, a licence and building regulations at once, and each one sets part of the layout. We take the planning consent and the licence conditions and build to them in order: room layout, second bathroom and kitchen, fire doors and alarms, insulation and finishes. A registered electrician certifies the alarms and wiring, a Gas Safe engineer does the gas work, and the landlord gets the certificates the licence inspection asks to see.

• Kitchens and bathrooms counted against the council's amenity standard
• Sound lining between bedrooms so one sharer does not keep another awake
• Honest updates if a date or a detail has to move

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