HMO Conversions Berkhamsted

HMO conversion in Berkhamsted is turning a family house into a shared house, or bringing an existing shared house up to the standard its licence sets. The town is mainly post-war and modern family houses around a market town core, so this is one house at a time for an individual landlord. A large HMO in Dacorum needs a licence once 5 or more people forming more than 1 household share facilities. The landlord applies for it, and we build the rooms, kitchens, bathrooms and fire precautions to suit it.

For Berkhamsted, 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 (Mayfair Studio and LetCompliance, 2026); a Hertfordshire price follows a site visit. GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Berkhamsted: 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 use classes for a shared house in Berkhamsted

The number of sharers sets the planning route for a Berkhamsted HMO. In general planning law a family house (C3) can become a small HMO for three to six unrelated people (C4) under permitted development, unless an Article 4 direction removes that right. The Article 4 (2) directions in Appendix 5 of the Berkhamsted conservation area appraisal are about alterations to the house numbers on the schedule, so they do not answer the HMO question either way. Your designer checks Dacorum's current Article 4 register for the address before the room count is fixed.

A shared house for seven or more people is sui generis and needs planning permission wherever it is in Berkhamsted. Building work that goes with the change also needs approval: Hertfordshire Building Control lists a change of use of an existing building as work that needs Building Regulation approval. Fire separation, escape and ventilation are all examined. We do not commit to a room count until the planning and building control routes are both clear, because each extra bedroom can change both.

Housing in Berkhamsted

Berkhamsted counts roughly 8,290 homes for Council Tax; 17% are older than 1919, 12% interwar and 71% post-war, with 25% flats and 75% houses.

When a Berkhamsted HMO needs a Dacorum licence

Licensing starts at a set size in Berkhamsted. A large HMO in Dacorum needs a licence if it is rented to 5 or more people forming more than 1 household who share toilet, bathroom or kitchen facilities. Each HMO needs its own licence, and a licence is valid for a maximum of 5 years. The landlord applies for it, and it is worth asking the council at the same time whether any other licensing scheme covers the address. We build to whatever standard the licence and the council set.

The obligations continue after we leave. A licensed HMO landlord must send the council an updated gas safety certificate every year and install and maintain smoke alarms. Renting out an unlicensed HMO can bring an unlimited fine. A landlord who disagrees with the conditions set on a licence can appeal to the First-Tier Tribunal. Where an appeal could change what is built, such as the number of bathrooms, we hold that part of the fit-out until the outcome is known rather than build it twice.

Room sizes and shared kitchens in a Berkhamsted house

Bedroom sizes decide how many people a Berkhamsted HMO can hold. National minimum room sizes have been mandatory licence conditions in England since 1 October 2018: 6.51 square metres for one adult and 10.22 for two, and no room under 4.64 square metres may be used for sleeping. The appraisal records the mid 19th century terraces around Bridge Street and Chapel Street with a single sash window to each room. A bedroom carved out of a larger room there may have no window of its own, which rules it out.

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.

Kitchens, bathrooms and WCs are sized to the number of occupants, following any amenity standards the council sets for the licence. That usually means a larger shared kitchen with enough cooking, storage and preparation space, and more bathrooms and WCs as the number of tenants in a Berkhamsted house rises. We lay out the rooms and services to the standard before the plasterboard goes up, so moving a wall or a waste pipe later is not needed.

Fire doors, alarms and sound in a Berkhamsted HMO

Fire safety shapes the building work in a Berkhamsted HMO more than anything else. Bedroom doors become fire doors with self closers, the stair and hall become a protected escape route, and detection and alarms are interlinked through the house. Building regulations Part B sets the baseline, and the recognised LACORS housing fire safety guidance helps size the precautions to the house. A licensed landlord must install and maintain smoke alarms, so we fit systems that are easy to test.

Sound and energy matter to tenants who share walls and bills. Upgrading the floors between lettings with insulation and a new ceiling cuts noise between rooms, and it improves fire resistance at the same time. A let house must reach at least EPC band E, which since 1 April 2020 covers existing tenancies as well as new ones, so a Berkhamsted HMO refurbishment is the time to renew heating, controls and insulation. A registered electrician certifies the electrics, and an engineer on the Gas Safe Register provides the annual gas safety record the landlord sends to the council.

• Interlinked smoke and heat alarms, mains-wired and graded to the council's HMO fire guidance
• Hard-wearing floors, finishes and decoration for a let house
• Electrics extended to every bedroom, certified by a registered electrician

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

People planning hmo conversions in Berkhamsted may also want bathroom renovation in Berkhamsted, hmo conversions in Tring, how building control works in London, what a kitchen fit covers, our London hmo conversions page and How to Choose a Builder.

The GS Renovation Difference in Berkhamsted

We build HMO conversions and upgrades to the standard a licence expects: room layouts checked against the minimum sizes, kitchens and bathrooms sized to the occupants, fire doors, protected escape routes, interlinked alarms and emergency lighting where needed. You or your agent handle the planning position and the licence application, and we provide drawings and a programme that support it. The electrical certificate from the registered electrician and the gas safety record are gathered for the licence file at handover.

• EPC upgrades done while the walls and floors are still open
• Detection laid out to the grade the council's HMO fire guidance sets
• Rated 4.9 from 31 reviews on MyBuilder

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