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 Castlereagh we start with a measured survey, check the NI HMO standards and licence conditions for the number of sharers, and then price each item separately.
- Area
- County Antrim, Northern Ireland
- Postcodes
- BT5 and BT6
- Location
- 2 miles south-east of Belfast
- Pricing region
- Northern Ireland
What do extensions for extra rooms in Castlereagh involve?
- Foundations, structure and roof
- Kitchen or bedroom fit-out
- Building control completion
- Heating, insulation and glazing
- Fire separation and detection extended to the new space
Which rules apply in Castlereagh?
Extensions for extra rooms in Castlereagh must satisfy national law for Northern Ireland, the NI HMO standards and licence conditions and, where walls, drainage or fire separation change, the building rules. In short:
- 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 Castlereagh?
| 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 |
Prices in Castlereagh are shown with our regional adjustment for Northern Ireland (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 Castlereagh landlords need it?
Typical reasons for this work in Castlereagh:
- A kitchen too small for the number of sharers
- Adding a ground-floor room
Questions about extensions for extra rooms in Castlereagh
Will the extension affect neighbours?
Possibly, if it is on or near a boundary. Party wall procedures may apply in England and Wales.
How far do you travel from Castlereagh?
We cover the whole of County Antrim and work UK-wide. For Castlereagh the nearest towns on our list are Belfast (2 miles), Dundonald (4 miles), Holywood (5 miles).
Where do I check the HMO rules for an address in Castlereagh?
With the local council for the address. In Northern Ireland, licensing is run centrally by the NI HMO Unit, and all new HMOs need planning permission and building control approval from the local council.
How much do extensions for extra rooms cost in Castlereagh?
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 Castlereagh
- Belfast · 2 mi
- Dundonald · 4 mi
- Holywood · 5 mi
- Newtownabbey · 6 mi
- Lisburn · 7 mi
- Newtownards · 8 mi
- All of County Antrim
Other HMO services in Castlereagh
- Loft conversions for extra rooms in Castlereagh
- Communal kitchen refits in Castlereagh
- Layout changes and room reconfiguration in Castlereagh
- Large HMO conversions (7+ sharers) in Castlereagh
- Ensuite installation in Castlereagh
- House to HMO conversion in Castlereagh
- Escape routes, emergency lighting and fire stopping in Castlereagh
- Void and between-tenancy refurbs in Castlereagh