Covering Derry
Our coverage around Derry (BT47) also includes Strabane, Limavady and Coleraine.
Homes in County Londonderry
Across Northern Ireland you find city terraces, suburban semis and rural bungalows and farmhouses, so the right approach depends on the plot and the planning history.
What is a house-to-flat conversion?
We assess the house against the council’s policies on flat sizes, parking, bins and cycle storage before any design work, then design layouts to the space standards your council uses. On site the critical work is fire separation, sound insulation between floors, separate services and meters, and protected escape routes.
- Planning and building control applications to the council
- Feasibility check against local planning policy
- Separate electrics, heating and metering
How much does a house-to-flat conversion cost in Derry?
Guide prices for house-to-flat conversions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.
Priced on survey.
Do you need permission for a house-to-flat conversion in Derry?
In Northern Ireland the council handles both planning and building control. Permitted development rules are set by the Planning (General Permitted Development) Order (Northern Ireland) 2015, and there is no party wall act, so we agree access and protection with neighbours in writing.
This needs full planning permission from the council in Northern Ireland, plus building control approval.
What should Derry homeowners check first?
- Some councils restrict the loss of family houses or limit flat conversions in certain streets.
- Sound insulation between flats is tested on completion.
What happens after I enquire?
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
What people ask before starting
Does converting a house into flats need planning permission?
Yes, always. Subdividing a house into flats is development under planning law.
What are the main building regulations issues?
Fire separation between flats, protected escape routes, sound insulation and separate services.
How do I get a price for house-to-flat conversions in Derry?
Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.
House-to-flat conversions near Derry
- House-to-flat conversions in Strabane
- House-to-flat conversions in Limavady
- House-to-flat conversions in Coleraine
- House-to-flat conversions in Omagh
Learn more about house-to-flat conversions, or see every project we cover in Derry.

