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. Derry is in Northern Ireland. We price commercial and above-shop to HMO there against Northern Ireland’s HMO rules and the NI HMO standards and licence conditions, so work is planned to the standard an inspection looks for. Derry has a university population, so many shared houses are let to students on yearly tenancies, and summer is the main window for works.
- Area
- County Londonderry, Northern Ireland
- Postcodes
- BT47 and BT48
- Pricing region
- Northern Ireland
What does commercial and above-shop to HMO in Derry involve?
- New kitchens, bathrooms and ensuites
- Separate entrance and protected escape route
- Fire separation between the commercial unit and the homes above
- Survey of structure, services and access
- Sound insulation to floors and party walls
Which rules apply in Derry?
Commercial and above-shop to HMO in Derry 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:
- 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 Derry?
| 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 |
Prices in Derry 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?
Most jobs of this kind take 12–24 weeks. If a council deadline applies in Derry, tell us at the first call so the programme is built around it.
For student houses in Derry, booking by spring is the safest way to make the summer gap.
When do Derry landlords need it?
Landlords in Derry most often ask us for this when:
- A mixed-use building where the upper floors need bringing into use
- A small office building with planning for residential use
Questions about commercial and above-shop to HMO in Derry
Is building control needed?
Yes. Changing commercial space to residential use is a material change of use and needs building regulations approval.
Which postcodes in Derry do you work in?
All of them, including BT47 and BT48, and the surrounding parts of County Londonderry.
Where do I check the HMO rules for an address in Derry?
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 Derry?
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 Derry
- Londonderry County Borough · 0 mi
- Strabane · 14 mi
- Coleraine · 27 mi
- Omagh · 28 mi
- Ballymena · 42 mi
- Enniskillen · 47 mi
- All of County Londonderry
Other HMO services in Derry
- Large HMO conversions (7+ sharers) in Derry
- Escape routes, emergency lighting and fire stopping in Derry
- Sound insulation in Derry
- EPC and energy upgrades in Derry
- Rewires and EICR remedials in Derry
- Layout changes and room reconfiguration in Derry
- Fire alarm and detection systems in Derry
- Shared bathroom and shower room refits in Derry