TRADES & CONSTRUCTION · 37 PROVIDERSTRADES & CONSTRUCTION · 37 PROVIDERS ACROSS IRELAND · GUIDE PRICE FROM €2,500 PER M²
House extension in Ireland
Builders and trades who cover your area — compare quotes before you commit.
House extensions are a popular way to increase living space and enhance the functionality of your home. This service typically involves the addition of new rooms or areas, such as conservatories, extra bedrooms, or larger kitchens, allowing homeowners to tailor their living environment to their evolving needs. The process often includes planning permissions, architectural designs, and construction work, ensuring that the extension is both practical and aesthetically pleasing.
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WHAT IT COSTS
House extension in Ireland: €2,500–€4,500 per m²
A single-storey extension is priced per m² (plus finishes) — the biggest way to add space, subject to planning and building control. Enter your town above for real prices from the builders and trades near you.
- Size (m²) and single vs double storey
- Ground conditions and structure
- Kitchen/bathroom fit-out
- Planning + building control
Guide prices compiled by the Locufy team from published Irish and UK provider price lists and 2026/27 cost guides. Updated 2026. Full house extension price guide →
GUIDE PRICE · PER M²
Not a quote. Prices vary by job, area and provider.
WHAT IT COVERS
What builders do
Single-Storey Extension
This involves adding a new room at ground level, often to create a larger living area or kitchen.
Double-Storey Extension
A two-level extension that provides additional rooms on both the ground and first floors, ideal for larger families.
Loft Conversion
Transforming unused attic space into functional rooms, such as bedrooms or offices, maximising vertical space.
Garage Conversion
Converting an existing garage into a livable space, such as a home gym or office, enhancing utility.
Orangery
A light-filled extension that combines elements of a conservatory and traditional building, often used as a living area.
Wrap-Around Extension
A comprehensive extension that wraps around the side and back of a home, creating a substantial new living area.
Three ways to get it done
LISTED ON LOCUFY
House Extension providers on Locufy, across Ireland
The most-reviewed providers listed for house extension. Enter your town above to see the ones that cover you.
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Questions people ask
The cost of a house extension can vary significantly based on size, complexity, materials used, and location. For example, a more complex design or high-end materials will increase overall costs.
The duration of a house extension project can range from a few weeks to several months, depending on the size and complexity. A simple single-storey extension might take around 6-8 weeks, while larger projects could take longer.
While general contractors can manage most aspects of a house extension, specific tasks like electrical, gas, or structural work require qualified specialists. It’s crucial to ensure that all work complies with local regulations.
Yes, many homeowners choose to combine related jobs, such as a house extension and renovation of existing rooms. This can often lead to cost savings and a more streamlined project timeline.
Emergency work for house extensions is generally limited and depends on the nature of the issue. Most projects require careful planning and scheduling, so same-day availability is uncommon.
Out of scope work may include landscaping, interior decorating, or any structural changes not covered in the original design. Homeowners should clarify with contractors what is included in the initial agreement.
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