PRICE GUIDE · TRADES & CONSTRUCTION · 2026–2027
Loft Conversion cost in Ireland
€35,000–€90,000 per project. Typically €55,000.
A loft conversion in Ireland costs €35,000–€90,000 per project, typically around €55,000. The price is set by conversion type (velux/dormer/hip-to-gable), structural work and stairs and bathroom/en-suite added.
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HOW MUCH IT COSTS
How much does loft conversion cost in Ireland?
| Low end | €35,000 | a simple job, off-peak, outside the cities |
|---|---|---|
| Typical | €55,000 | what most people pay |
| High end | €90,000 | the biggest jobs, short notice, Dublin |
Locufy guide prices for 2026–2027. Updated 2026. A national range, not a quote — enter your town above for real prices from the builders and trades near you.
What moves the price
- Size of the loft — a larger loft takes more flooring, insulation and plasterboard, and more days to convert.
- Complexity of the design — dormers, a mansard roof or an en-suite add building time over a simple roof light conversion.
- Any necessary structural changes — new steel beams or altered rafters need engineering design and extra building work.
- Stairs to the loft — fitting a new staircase may mean reshaping the room below, which adds to the conversion.
- Bathroom or en-suite added — plumbing and waterproofing for a loft bathroom add trades and time to the conversion.
Services for the maintenance and repair of the dwelling prices in Ireland are up 23% over five years (CSO Consumer Price Index, Services for the maintenance and repair of the dwelling, to 2025 December). Five years ago a typical loft conversion would have cost about €44570 — an estimate from today's guide price and that index, not a recorded price. Source: CSO CPM18, CPM12 →
WHAT YOU GET
What a loft conversion booking includes
Takes: A loft conversion usually takes between 6 to 12 weeks to complete, depending on the complexity of the project and the availability of materials..
WHAT PEOPLE BOOK
Common loft conversion jobs
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Loft Conversion near you, with prices shown
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How to pay less
- Leaving out an en-suite, or placing it above an existing bathroom, can reduce the plumbing cost of the loft conversion.
- Keeping the new loft stairs above the existing staircase usually means less building work in the rooms below.
- Choosing standard-sized roof windows and off-the-shelf fittings for the loft conversion can cost less than made-to-order ones.
- Decorating the finished loft yourself, rather than adding painting to the conversion contract, can bring the final cost down.
- A roof light conversion usually needs less structural work than a dormer, so it can cost less to build.
Before you book
- Access to the loft area for assessment and measurements.
- Any existing plans or architectural drawings of your home.
- Information about your desired use for the loft space.
- Details on any specific design preferences or requirements.
- You can ask whether the builder is qualified in loft conversions, and how the work will meet building standards, including fire safety and stairs.
Loft Conversion cost: questions people ask
The cost of a loft conversion can vary based on factors such as the size of the loft, the complexity of the design, and any necessary structural changes. Additional features like bathrooms or bespoke storage solutions can also increase the overall price.
A loft conversion usually takes between 6 to 12 weeks to complete, depending on the complexity of the project and the availability of materials. Delays can occur due to unforeseen structural issues or changes in design during the build.
While a general contractor can manage the overall project, hiring specialists like structural engineers or qualified electricians for specific tasks is often necessary. This ensures that all work meets safety regulations and building codes.
Loft conversions are typically extensive projects that cannot be completed on the same day. However, if you need urgent repairs or modifications, some contractors may offer expedited services for specific tasks, but this will come at a higher cost.
Yes, many homeowners choose to book related services, such as electrical work or insulation upgrades, alongside their loft conversion. This can often lead to cost savings and a more streamlined process.
Out of scope work for a loft conversion may include significant external alterations to the property, such as changes to the roofline or extensions beyond the loft space. Additionally, landscaping or garden work is generally not included unless specified in the contract.