An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Landlords in Hertford (SG13 and SG14) 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
- SG13 and SG14
- Location
- 20 miles north of London
- Pricing region
- East of England
What do extensions for extra rooms in Hertford involve?
- Party wall coordination where needed
- Planning route check and drawings
- Fire separation and detection extended to the new space
- Ensuite drainage and extraction
- Heating, insulation and glazing
Which rules apply in Hertford?
The rules below are the England-wide position for this kind of work. Councils add their own standards and schemes on top, so we always check the address in Hertford before we price.
- 3–6 unrelated sharers is use class C4; changing from a family house is usually permitted development unless an Article 4 direction applies.
- Building regulations cover structural changes, new partitions, ensuite drainage, fire-resisting construction and notifiable electrical work.
- Smoke alarms on every storey with living accommodation and CO alarms by fixed combustion appliances (other than gas cookers) are required by law.
- Council standards often step up at 5 and 6 sharers, for example a separate WC at 5 and a second bathroom from 6.
How much do extensions for extra rooms cost in Hertford?
| 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 Hertford 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?
Most jobs of this kind take 8–14 weeks. If a council deadline applies in Hertford, tell us at the first call so the programme is built around it.
When do Hertford landlords need it?
Typical reasons for this work in Hertford:
- A kitchen too small for the number of sharers
- Moving to more sharers with consent
Questions about extensions for extra rooms in Hertford
Is a kitchen extension worth it?
Often, when the existing kitchen limits how many people the council will allow. A bigger kitchen can unlock an extra room.
How far do you travel from Hertford?
We cover the whole of Hertfordshire and work UK-wide. For Hertford the nearest towns on our list are Hoddesdon (4 miles), Welwyn Garden City (6 miles), Hatfield (7 miles).
Does a shared house in Hertford 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 Hertford?
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 Hertford
- Hoddesdon · 4 mi
- Welwyn Garden City · 6 mi
- Hatfield · 7 mi
- Cheshunt · 7 mi
- Waltham Abbey · 8 mi
- Harlow · 8 mi
- All of Hertfordshire
Other HMO services in Hertford
- Loft conversions for extra rooms in Hertford
- Communal kitchen refits in Hertford
- Layout changes and room reconfiguration in Hertford
- Large HMO conversions (7+ sharers) in Hertford
- Ensuite installation in Hertford
- House to HMO conversion in Hertford
- Escape routes, emergency lighting and fire stopping in Hertford
- Fire doors in Hertford