A commercial to HMO conversion turns space that was never a home, such as upper floors over shops or small office buildings, into shared accommodation. In Larne, a town of about 18,000 people in County Antrim, the work is planned around the HMO rules for Northern Ireland and the NI HMO standards and licence conditions.
- Area
- County Antrim, Northern Ireland
- Postcodes
- BT40
- Location
- 18 miles north of Belfast
- Pricing region
- Northern Ireland
What does commercial and above-shop to HMO in Larne involve?
- New kitchens, bathrooms and ensuites
- Windows and thermal upgrades
- Coordination with planning and building control
- Separate entrance and protected escape route
- Survey of structure, services and access
Which rules apply in Larne?
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 Larne before we price.
- Licences usually last 5 years, and landlords must also register with the NI landlord registration scheme.
- 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.
- The NIFRS HMO Fire Safety Guide (July 2026) usually expects Grade D1 interlinked detection in smaller shared houses and a Grade A system with more than 6 occupants or over 200 m².
How much does commercial and above-shop to HMO cost in Larne?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Conversion works per letting room (walls, linings, electrics, decoration; excludes kitchens, bathrooms and fire systems; our estimate) | £3,500 – £6,500 | £3,150 – £5,850 | letting room |
| Panel alarm system (Grade A type), larger HMO | £1,750 – £4,500 | £1,600 – £4,050 | house |
| Acoustic ceiling or floor upgrade, 12–15 m² | £800 – £2,700 | £720 – £2,450 | room |
| Communal HMO kitchen with extra cooking and sink capacity (our estimate from domestic ranges) | £8,000 – £18,000 | £7,200 – £16,200 | kitchen |
| Ensuite shower room added to a bedroom | £4,000 – £10,000 | £3,600 – £9,000 | ensuite |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Larne can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Typical time on site: 12–24 weeks. We agree the programme with you before starting and send photo updates as the work progresses.
When do Larne landlords need it?
Landlords in Larne most often ask us for this when:
- Empty upper floors above a shop you own
- A mixed-use building where the upper floors need bringing into use
Questions about commercial and above-shop to HMO in Larne
Is building control needed?
Yes. Changing commercial space to residential use is a material change of use and needs building regulations approval.
How far do you travel from Larne?
We cover the whole of County Antrim and work UK-wide. For Larne the nearest towns on our list are Carrickfergus (9 miles), Newtownabbey (14 miles), Bangor (County Down) (14 miles).
Where do I check the HMO rules for an address in Larne?
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 does commercial and above-shop to HMO cost in Larne?
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.
Commercial and above-shop to HMO near Larne
- Carrickfergus · 9 mi
- Newtownabbey · 14 mi
- Bangor (County Down) · 14 mi
- Holywood · 15 mi
- Dundonald · 18 mi
- Belfast · 18 mi
- All of County Antrim
Other HMO services in Larne
- Large HMO conversions (7+ sharers) in Larne
- Escape routes, emergency lighting and fire stopping in Larne
- Sound insulation in Larne
- EPC and energy upgrades in Larne
- Rewires and EICR remedials in Larne
- Layout changes and room reconfiguration in Larne
- Small HMO conversions (3–6 sharers) in Larne
- Student HMO refurbishment in Larne