An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In Holywood, a town of about 13,000 people in County Down, the work is planned around the HMO rules for Northern Ireland and the NI HMO standards and licence conditions.
- Area
- County Down, Northern Ireland
- Postcodes
- BT4 and BT18
- Location
- 5 miles north-east of Belfast
- Pricing region
- Northern Ireland
What do extensions for extra rooms in Holywood involve?
- Ensuite drainage and extraction
- Foundations, structure and roof
- Party wall coordination where needed
- Building control completion
- Fire separation and detection extended to the new space
Which rules apply in Holywood?
The rules below are the Northern Ireland-wide position for this kind of work. The NI HMO Unit’s standards and licence conditions apply on top, so we always check the address in Holywood before we price.
- All new HMOs need planning permission; councils such as Belfast apply HMO policy areas and limits on concentration.
- New HMOs need building control approval as well as planning permission.
- Doors on protected routes are typically FD30 or FD30S, self-closing on three hinges; emergency lighting is required in HMOs of 4 or more storeys.
- Kitchens, bathrooms and WCs must meet the 2019 living accommodation standard regulations and licence conditions.
How much do extensions for extra rooms cost in Holywood?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £31,500 – £54,000 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £1,600 – £3,600 | m² |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Holywood can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Most jobs of this kind take 8–14 weeks. If a council deadline applies in Holywood, tell us at the first call so the programme is built around it.
When do Holywood landlords need it?
Landlords in Holywood most often ask us for this when:
- Moving to more sharers with consent
- Adding a ground-floor room
Questions about extensions for extra rooms in Holywood
Do you handle building control?
Yes, from application to completion certificate.
How far do you travel from Holywood?
We cover the whole of County Down and work UK-wide. For Holywood the nearest towns on our list are Dundonald (3 miles), Newtownabbey (4 miles), Belfast (5 miles).
Does a shared house in Holywood need an HMO licence?
Yes, if 3 or more people forming more than two households live there as their main home and pay rent. Licensing for every council in Northern Ireland is run by the NI HMO Unit at Belfast City Council.
How much do extensions for extra rooms cost in Holywood?
Our guide ranges for Northern Ireland 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 Holywood
- Dundonald · 3 mi
- Newtownabbey · 4 mi
- Belfast · 5 mi
- Castlereagh · 5 mi
- Carrickfergus · 5 mi
- Newtownards · 6 mi
- All of County Down
Other HMO services in Holywood
- Loft conversions for extra rooms in Holywood
- Communal kitchen refits in Holywood
- Layout changes and room reconfiguration in Holywood
- Large HMO conversions (7+ sharers) in Holywood
- Ensuite installation in Holywood
- House to HMO conversion in Holywood
- Commercial and above-shop to HMO in Holywood
- Fire alarm and detection systems in Holywood