An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. For a house in Chester-le-Street we start with a measured survey, check the council’s written HMO standards for the number of sharers, and then price each item separately.
- Area
- County Durham, England
- Postcodes
- DH2 and DH3
- Location
- 8 miles south of Newcastle upon Tyne
- Council
- Durham County Council
- Pricing region
- North East
What do extensions for extra rooms in Chester-le-Street involve?
- Foundations, structure and roof
- Party wall coordination where needed
- Heating, insulation and glazing
- Planning route check and drawings
- Fire separation and detection extended to the new space
Which rules apply in Chester-le-Street?
Extensions for extra rooms in Chester-le-Street must satisfy national law for England, the council’s written HMO standards and, where walls, drainage or fire separation change, the building rules. In short:
- 7 or more sharers is a sui generis large HMO and normally needs planning permission.
- 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.
- National rules ask for an adequate number of bathrooms, WCs and basins and suitably located kitchens; numeric ratios are set by each council.
Durham County Council: local HMO schemes
| Article 4 (HMO) | In force in part of the council area Directions cover Durham City and other named areas (2016-2022); extension to rest of county proposed. |
|---|---|
| Additional licensing | No scheme found |
| Selective licensing | In force in part of the council area Selective licensing in 103 designated areas 1 Apr 2022-31 Mar 2027; consultation on a replacement (87 postcodes, c.38% of PRS) closed 12 Aug 2026. |
Schemes change. Check the council’s current pages for the exact address in Chester-le-Street before you buy or start work. Source: Durham County Council HMO licensing page, checked 2026-10-31.
How much do extensions for extra rooms cost in Chester-le-Street?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £32,200 – £55,200 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £1,650 – £3,700 | m² |
Prices in Chester-le-Street are shown with our regional adjustment for North East (below 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 Chester-le-Street landlords need it?
We usually get the call when:
- Moving to more sharers with consent
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Chester-le-Street
Do you handle building control?
Yes, from application to completion certificate.
Do you cover all of Chester-le-Street?
Yes. We work across Chester-le-Street and the DH2 and DH3 postcode areas, plus the rest of County Durham. Nearby places we also cover include Washington, Houghton-Le-Spring, Stanley.
Which council covers HMOs in Chester-le-Street?
Chester-le-Street is covered by Durham County Council. We read the council’s written HMO standards before pricing, and you should check the licence position for the exact address.
How much do extensions for extra rooms cost in Chester-le-Street?
Our guide ranges for North East 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 Chester-le-Street
- Washington · 4 mi
- Houghton-Le-Spring · 5 mi
- Stanley · 5 mi
- Durham · 6 mi
- Felling · 7 mi
- Gateshead · 7 mi
- All of County Durham
Other HMO services in Chester-le-Street
- Loft conversions for extra rooms in Chester-le-Street
- Communal kitchen refits in Chester-le-Street
- Layout changes and room reconfiguration in Chester-le-Street
- Large HMO conversions (7+ sharers) in Chester-le-Street
- Ensuite installation in Chester-le-Street
- House to HMO conversion in Chester-le-Street
- Shared bathroom and shower room refits in Chester-le-Street
- Fire alarm and detection systems in Chester-le-Street