HMO Conversions Purley

HMO conversions in Purley sit under two Croydon controls. Since 28 January 2020 an Article 4 Direction has meant a small HMO needs planning consent here, and from 25 September 2026 Additional HMO licensing reaches every smaller HMO in the borough that mandatory licensing does not. With 34% of Purley homes semi-detached or detached, the likeliest candidates are larger family houses. We build shared houses to the consent and licence standards the landlord secures.

One exception matters here: a flat in a purpose-built block of three or more self-contained flats falls outside mandatory licensing, although a council's additional scheme can still cover it.

In Purley, 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 Purley: 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.

HMO rules in Purley: Article 4 and planning consent

Class L of the General Permitted Development Order 2015 lets a house change from Class C3 to a small HMO in Class C4 as permitted development, but Croydon's Article 4 Direction removes that right. Because of it, any HMO of 3 to 6 people created in Purley after 28 January 2020 must have planning consent. Larger HMOs for 7 or more people are Sui Generis in the London Plan glossary and have long needed planning consent in Croydon anyway. Consent comes first, and the owner or their agent applies for it.

Class L also does not permit one former house to become two or more separate C4 HMOs, so splitting a large Purley house into two shared units is a planning application whatever the Article 4 position. Croydon takes an HMO's planning status into account when licensing and may refuse a licence or grant a reduced term, commonly one year. That ties the two regimes together: a room layout built without consent can cost the landlord the licence, so we build only to the approved drawings.

Housing in Purley

About 8,800 homes are listed for Purley, and the mix is 49% houses to 50% flats, with 42% built after 1945, 24% in 1919 to 1939 and 32% earlier.

Croydon HMO licensing for a shared house in Purley

From 25 September 2026 Croydon's Additional HMO licensing applies borough wide, Purley included, to smaller HMOs not covered by mandatory licensing: a property occupied by 3 or more persons forming 2 or more households. Where 5 or more people who are not one household share facilities, the house needs a licence under the Mandatory HMO Licensing Scheme instead. The start date of the Additional and Selective Licensing Schemes was moved from 1 September 2026 to 25 September 2026, and Additional HMO licences run for 5 years unless compliance or management concerns shorten them.

In practice every HMO in Purley now needs a licence of one kind or the other. Croydon describes the Additional scheme as covering HMOs with 3 or 4 persons, and GOV.UK says renting out an unlicensed HMO can lead to an unlimited fine. The landlord applies for the licence and holds it. Our job is to build to the standards the licence will test, so the inspection finds rooms, kitchens, bathrooms and fire precautions that already match the conditions.

Room sizes, kitchens and bathrooms in a Purley HMO

The room standards shape the build. Habitable rooms, bathrooms and WCs in a Croydon bedsit HMO need at least 2.3m from floor to ceiling, and one bedroom can sleep 2 persons at most. Croydon will not accept bedrooms partitioned only to reach 10m2 if the shape is not practical, so a long thin room cut from a Purley bedroom fails even when the area is met. The national licence minimums apply on top: 6.51 square metres for one person over 10, 10.22 for two, and no sleeping room under 4.64.

Amenities are set per occupant. Under Croydon's bedsit HMO standards a shared kitchen may serve no more than 5 persons and must be within one floor of the rooms it serves, so a larger Purley house may need a second kitchen upstairs. Each occupancy in a house shared by 6 or more persons needs its own wash-hand basin, and a bathroom must be within one floor of every user, at ratios such as 2 bathrooms for 6 to 10 persons. We plan the soil stacks around those ratios first.

Fire safety and sound in a Purley HMO

Fire safety is the heart of an HMO conversion. Among the precautions Croydon may ask an HMO to provide is an interlinked, mains wired alarm covering the whole property, and the exact grade follows the fire risk assessment. In a Purley house that typically means fire doors with self-closers to every letting, a protected escape route down the stair to the front door, and fire-resisting construction where the route passes a kitchen. The LACORS guidance on housing fire safety is the accepted reference, and Part B applies where building work is done.

Sound matters because each letting is a separate household keeping different hours. We add insulation to separating walls and floors between bedrooms, fit acoustic seals to doors, and keep kitchens away from sleeping rooms where the plan allows. Energy counts too: since 1 April 2020 a landlord cannot let, or continue to let, a home rated below E without a valid exemption, so a Purley HMO conversion is the time to add insulation and heating controls. A registered electrician certifies the alarm and wiring.

• Bedroom layouts checked against the national minimum room sizes
• Large HMO conversions for seven or more, once planning is granted
• Insulation and heating upgrades toward the minimum EPC for letting

VOA Council Tax stock of properties, March 2025, for Purley North and Purley Central. Counts rounded by the VOA.

When comparing hmo conversions in Purley with other work, it helps to read bathroom renovation in Purley, hmo conversions across Croydon, how building control works in London, how snagging works at handover, hmo conversions across London and Kitchen Renovation Cost.

Trusted HMO Conversions in Purley

An HMO only earns once it is consented, licensed and passes its inspection, so the build has to match both sets of papers exactly. We work from the approved drawings and the licence standards, room by room, and treat ceiling heights, room shapes, basins and fire doors as fixed. You get a written quotation after a site visit, one programme through to handover, and a founder with more than three decades of building behind the work. For a Purley landlord, that keeps the consent, the licence and the build in step.

• Fire doors, closers and seals fitted to every door on the escape route
• Sound lining between bedrooms so one sharer does not keep another awake
• Aftercare and snagging support once the job is finished

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