An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Landlords in Hemel Hempstead (HP2 and HP3) usually come to us with a council letter, a fire risk assessment or a house they have just bought. We price from whichever you have.
- Area
- Hertfordshire, England
- Postcodes
- HP2 and HP3
- Location
- 22 miles north-west of London
- Pricing region
- East of England
What do extensions for extra rooms in Hemel Hempstead involve?
- Ensuite drainage and extraction
- Foundations, structure and roof
- Building control completion
- Planning route check and drawings
- Fire separation and detection extended to the new space
Which rules apply in Hemel Hempstead?
Here is what usually applies to a Hemel Hempstead job of this kind. It is general information rather than legal advice, and the council’s written HMO standards have the final detail.
- 7 or more sharers is a sui generis large HMO and normally needs planning permission.
- A conversion can be a material change of use under the building regulations, so confirm with building control before work starts.
- The Fire Safety Order 2005 applies to the common parts of HMOs, enforced by the fire and rescue authority.
- National rules ask for an adequate number of bathrooms, WCs and basins and suitably located kitchens; numeric ratios are set by each council.
How much do extensions for extra rooms cost in Hemel Hempstead?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £37,100 – £63,600 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £1,900 – £4,250 | m² |
Prices in Hemel Hempstead are shown with our regional adjustment for East of England (above the UK average). Your quote is itemised and fixed in writing once the scope and specification are agreed.
How long does it take?
Allow 8–14 weeks on site for a typical job. Drawings, approvals and long-lead items such as kitchens or fire door sets are booked before we start.
When do Hemel Hempstead landlords need it?
Typical reasons for this work in Hemel Hempstead:
- Moving to more sharers with consent
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Hemel Hempstead
Do you handle building control?
Yes, from application to completion certificate.
Which postcodes in Hemel Hempstead do you work in?
All of them, including HP2 and HP3, and the surrounding parts of Hertfordshire.
Does a shared house in Hemel Hempstead need an HMO licence?
In England, a mandatory licence is needed for 5 or more people from 2 or more households. Smaller HMOs can need a licence where the council runs additional licensing, which is common in towns with many shared houses. Check the council’s website for the address.
How much do extensions for extra rooms cost in Hemel Hempstead?
Our guide ranges for East of England are in the table on this page, and the guide-price tool gives a figure for your house. A fixed written quote follows a free site visit.
Extensions for extra rooms near Hemel Hempstead
- Berkhamsted · 5 mi
- St Albans · 5 mi
- North Watford · 6 mi
- Harpenden · 6 mi
- Watford · 7 mi
- Chesham · 7 mi
- All of Hertfordshire
Other HMO services in Hemel Hempstead
- Loft conversions for extra rooms in Hemel Hempstead
- Communal kitchen refits in Hemel Hempstead
- Layout changes and room reconfiguration in Hemel Hempstead
- Large HMO conversions (7+ sharers) in Hemel Hempstead
- Ensuite installation in Hemel Hempstead
- House to HMO conversion in Hemel Hempstead
- Shared bathroom and shower room refits in Hemel Hempstead
- Licence condition and schedule-of-works in Hemel Hempstead