HMO Conversions Addiscombe

HMO conversion in Addiscombe is shaped by two Croydon decisions. Under an Article 4 Direction, any HMO of 3 to 6 people created after 28 January 2020 needs planning consent, and since 25 September 2026 Additional HMO licensing has covered every smaller HMO in the borough. For a landlord turning an Addiscombe terrace into a shared house, or bringing an existing HMO up to licence standard, planning and the licence come before the builder. We then build the rooms, kitchens, bathrooms and fire protection those consents describe.

In Addiscombe, 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 Addiscombe: 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 Addiscombe under Croydon's Article 4 Direction

Class L of the General Permitted Development Order 2015 normally lets a house change from Class C3 to a small Class C4 HMO without planning permission. Croydon removed that right: its Article 4 Direction on converting homes into small HMOs came into place on 28 January 2020. Because of it, any HMO of 3 to 6 people created after that date must have planning consent. An Addiscombe house let to unrelated sharers therefore needs its planning position settled before any building work starts.

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 Croydon Council, and carrying it out without consent is a criminal offence.

Larger HMOs for 7 or more people have long needed consent separately, and the London Plan glossary defines HMOs for more than six people as Sui Generis. Class L also does not permit a former single house to be used as two or more separate C4 HMOs. Under Policy DM10.1 Croydon considers noise, refuse collection and extra car parking where an HMO is proposed, so bin storage and parking appear on the Addiscombe application drawings from the start.

Housing in Addiscombe

Around 11,740 homes make up Addiscombe on the valuation list; 45% are flats and 55% houses, and 52% date from before 1919, 21% from between the wars and 27% from after 1945.

Mandatory and Additional HMO licensing for Addiscombe landlords

Croydon states that HMOs occupied by 5 or more people who do not live as a single household but share facilities must be licensed under the Mandatory HMO Licensing Scheme. Since 25 September 2026 its Additional HMO licensing applies to all smaller HMOs in the borough not covered by the mandatory scheme, where 3 or more persons form 2 or more households. Between them the schemes reach any HMO in Addiscombe, whatever its size, and the landlord applies for the licence.

Additional licences are granted for 5 years unless compliance or management concerns require a shorter term. Croydon also takes an HMO's planning status into account when licensing, and may refuse or grant a reduced-term licence, commonly one year. The start date of the new schemes moved from 1 September 2026 to 25 September 2026 by a decision made on 9 July 2026. GOV.UK warns that renting out an unlicensed HMO can lead to an unlimited fine, so an Addiscombe landlord settles planning and the licence before letting.

Room sizes, kitchens and bathrooms to Croydon's HMO standards

Croydon's bedsit HMO standards require habitable rooms, bathrooms and WCs to have a floor to ceiling height of at least 2.3m, which can rule out attic and cellar rooms in an Addiscombe terrace. No more than 2 persons may sleep in one bedroom, and Croydon will not accept a bedroom partitioned only to reach 10m2 if its shape or layout is not practical. The national minimum room sizes are mandatory licence conditions too: 6.51 square metres for one person over 10, 10.22 square metres for two, and no room under 4.64 square metres used for sleeping, so bedroom walls are set out to measured sizes.

The mandatory scheme stops short of flats in purpose-built blocks of three or more self-contained flats, which only an additional licensing scheme can catch.

A shared kitchen may serve no more than 5 persons and must be within one floor of the rooms it serves. A bathroom or shower room must be within one floor of every user, at ratios such as 2 bathrooms for 6 to 10 persons, and in a house shared by 6 or more each separate occupancy needs its own wash-hand basin. In an Addiscombe house that usually means a second kitchen or a new shower room upstairs, so the drainage routes are fixed early.

Fire safety, sound and energy in an Addiscombe HMO

Croydon lists a mains wired, interlinked fire alarm system throughout the property among the fire safety measures an HMO may be asked to provide. In an Addiscombe shared house that sits alongside fire doors to every bedroom and the kitchen, a protected escape stair, and fire stopping where pipes and cables pass through floors. LACORS housing fire safety guidance is the recognised national guide to these measures, and Part B of the building regulations applies where the conversion is building work.

Sound matters because each room is a separate letting. We add acoustic quilt between joists and resilient bars under new ceilings where bedrooms sit over the kitchen or lounge. Energy matters too: GOV.UK says that since 1 April 2018 landlords may not grant new tenancies on homes rated F or G without an exemption, and since 1 April 2020 that has applied to continuing lets too. For an Addiscombe HMO the refurbishment is the moment to improve insulation, heating controls and glazing so the EPC supports the licence.

• Existing HMOs upgraded to meet their licence conditions
• Bedroom layouts checked against the national minimum room sizes
• Protected escape routes through the hall, stair and landings

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

For the wider picture around hmo conversions in Addiscombe, see bathroom renovation in Addiscombe, hmo conversions across Croydon, what a main building contractor does, how snagging works at handover, our London hmo conversions page and Small Bathroom Ideas.

Why Choose GS Renovation in Addiscombe

An HMO answers to the licence conditions as well as building control, and the fire and amenity details are what the council looks at closely. We build to the planning consent and the licence conditions your agent or the council sets, and sequence the job so fire doors, alarm wiring, fire stopping and separating ceilings are finished and checked before decoration. You get a written quotation after a site visit and a programme that fits the licensing timetable, and at handover the drawings and records for the inspection.

• Existing HMOs brought up to licence conditions, fire works first
• Founder with 30+ years of hands-on experience
• Sound lining between bedrooms so one sharer does not keep another awake

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