Renovation Cost Calculator Ireland 2026
Get a Realistic Starting Budget for Your Home Renovation
Planning a renovation often starts with one difficult question: how much is this actually going to cost?
Our renovation cost calculator provides an indicative project budget based on the size and condition of your property and, importantly, the actual work you intend to carry out.
Rather than relying on a single cost-per-square-metre figure, the calculator considers major cost drivers including structural alterations, rewiring, plumbing and heating, insulation, windows and doors, kitchens, bathrooms, flooring, extensions and external works.
Use the calculator below to estimate your project.
Your Estimate Is a Starting Point — Not a Quotation
Every existing property is different. Two houses of exactly the same size can require substantially different renovation budgets.
The estimate generated above is intended for early project planning and feasibility. Existing building condition, structural design, access, specification, finishes and unforeseen works can all affect the final construction cost.
For projects progressing towards construction, Alvora can review the property and proposed scope in considerably greater detail.
How Much Does It Cost to Renovate a House in Ireland in 2026?
The cost of renovating a house in Ireland depends heavily on the condition of the existing property, the extent of structural work required and the standard of finish.
A light refurbishment where the existing structure and services are largely retained is very different from a full house renovation involving strip-out, structural alterations, replacement floors, rewiring, replumbing, heating upgrades, insulation, new windows and complete internal finishes.
For early-stage budgeting, the following ranges can be useful:
Renovation Type
Light refurbishment-€500–€900/m²
Medium renovation-€900–€1,500/m²
Full house renovation-€1,500–€2,200/m²
Extensive / high-end renovation-€2,200–€3,000+/m²
These are broad feasibility figures rather than fixed construction rates. Existing building condition, access, structural design, specification and finishes can materially affect the final cost.
What Does a Full House Renovation Include?
A full house renovation goes considerably further than replacing a kitchen, flooring and decorating.
Depending on the property, a comprehensive renovation can include:
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Full internal strip-out and demolition
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Removal and replacement of suspended ground floors
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Structural alterations and new openings
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Structural steel installation
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Complete electrical rewire
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New plumbing and heating systems
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Insulation and airtightness upgrades
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New windows and external doors
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Internal wall alterations
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Reslabbing and plastering
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New internal doors, skirting and architraves
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Kitchen installation
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Bathroom and en-suite refurbishment
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Floor and wall finishes
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Painting and decorating
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External drainage and associated works
The greater the number of these elements involved, the less useful a simple cost-per-square-metre calculation becomes.
This is why our renovation calculator considers the actual scope of work selected rather than relying solely on the size of the house.
From Online Estimate to Detailed Project Cost
01 — Initial Estimate
Use our calculator to establish whether the likely project investment aligns with your available budget.
02 — Tell Us About Your Project
If the initial figures are suitable, complete our renovation enquiry form with information about the property, proposed works, drawings and desired timescale.
03 — Project Review
We review the proposed scope, property information and available design documentation to understand the project properly.
04 — Detailed Costing
As the project becomes sufficiently defined, individual construction packages can be measured and priced rather than relying on generic renovation rates.
05 — Construction
For suitable projects, Alvora can manage the complete construction process from initial strip-out and structural works through building services, finishes and handover.
Renovation Cost Calculator FAQs
How accurate is a renovation cost calculator?
-A renovation calculator should be treated as an early feasibility tool rather than a quotation. Accuracy improves considerably once drawings, structural requirements, specifications and the condition of the existing property are known.
How much does a full house renovation cost in Ireland?
-Full renovation costs vary considerably depending on the property and scope. Structural works, replacement floors, rewiring, plumbing, heating, windows, insulation, kitchens and bathrooms can quickly move a comprehensive renovation into six figures.
How much does it cost to renovate a three-bedroom house?
-The size of the house alone isn't enough to determine the cost. A three-bedroom property receiving cosmetic improvements could require a relatively modest budget, while a complete strip-out and reconstruction involving services, floors, windows and structural works could exceed €150,000–€250,000.
How much does a house renovation cost per m² in Ireland?
-Broad cost-per-square-metre figures are useful for early feasibility, but they become less reliable for existing buildings because many renovation costs do not scale directly with floor area. A scope-based estimate provides a better indication.
Can Alvora provide a detailed renovation estimate?
-Yes. For suitable renovation projects, Alvora can review the proposed works, available drawings, property information and required specification to develop a more detailed project cost assessment.
Planning a Major Home Renovation?
Move From an Estimated Budget to a Properly Planned Project
A successful renovation begins long before construction starts.
Alvora delivers major home renovations involving structural alterations, building services, energy upgrades and high-quality internal finishes across Dublin, Meath and Louth.
If your calculator result aligns with your intended investment, the next step is to tell us more about the property.