The most detailed, up-to-date guide to Dublin construction costs per square metre. Transparent pricing for extensions, renovations, and new builds across Dublin.
Get an Accurate QuoteConstruction costs in Dublin are significantly higher than in the rest of Ireland — and for good reason. If you're planning a building project in Dublin, understanding these factors will help you budget accurately and avoid unexpected expenses.
Dublin's construction industry faces chronic skilled labour shortages. Bricklayers, carpenters, and electricians command 15-20% higher rates than in regional Ireland. Weekend and overtime rates push costs further for time-sensitive projects.
Dublin City Council and county councils charge higher planning fees (€65-€340 for house extensions). Development levies can add €1,000-€5,000+ depending on floor area. Fire cert, disability access cert, and BER rating all add to the bottom line.
Getting materials to urban Dublin sites is expensive. Traffic restrictions, parking permits for construction vehicles, and limited storage space mean materials often arrive in smaller batches, increasing delivery costs by 5-10%.
Terraced houses, narrow laneways, and tight urban plots present real challenges. Crane hire, mini-digger transport, and material handling in confined spaces add 10-15% to projects in established Dublin neighbourhoods.
Average costs per square metre in Dublin. Prices include labour, materials, and standard finishes. VAT at 13.5% not included.
| Project Type | Standard | Mid-Spec | High-Spec / Luxury |
|---|---|---|---|
| Single-Storey Rear Extension | €1,600 - €1,800/m² | €1,800 - €2,100/m² | €2,100 - €2,500/m² |
| Two-Storey Extension | €1,800 - €2,000/m² | €2,000 - €2,300/m² | €2,300 - €2,700/m² |
| Kitchen Extension | €1,700 - €2,000/m² | €2,000 - €2,400/m² | €2,400 - €3,000/m² |
| Full House Renovation | €1,000 - €1,300/m² | €1,300 - €1,600/m² | €1,600 - €2,200/m² |
| New Build (Standard) | €1,800 - €2,100/m² | €2,100 - €2,500/m² | €2,500 - €3,200/m² |
| Modular / Prefab Home | €1,400 - €1,700/m² | €1,700 - €2,100/m² | €2,100 - €2,600/m² |
Important: These prices are indicative and based on typical Dublin projects. Final costs depend on site conditions, specifications, access, and current market rates. All prices exclude VAT at 13.5%. A detailed quote requires a site survey.
Design, supply and fitting
€8,000 - €35,000+
Full wet room installation
€5,000 - €15,000
RSJs, wall removal, underpinning
€3,000 - €15,000+
Planning a construction project in Dublin? Explore our detailed guides and services:
Every Dublin project is unique. Get a comprehensive, no-obligation quote tailored to your specific site and requirements.
Understanding these factors helps you plan and budget accurately for your Dublin construction project.
Terraced houses in Dublin 3, 5, 7, 9 and narrow laneways present real challenges. Crane hire, restricted working hours, and limited storage add 10-15%.
Standard: €1,400-€1,800/m² | Mid-spec: €1,800-€2,400/m² | Luxury: €2,400-€3,200/m²
RSJs: €800-€2,500 each. Underpinning: €3,000-€12,000+. Structural engineer fees: €500-€1,500. Often underestimated in budgets.
Planning: €65-€340. Fire Cert: €1,500-€3,500. DAC: €800-€1,200. Development levies: €20-€30/m². Total: €2,500-€8,000+.
All Irish construction at 13.5% VAT. On €200,000 build, VAT adds €27,000. Budget for this from the start.
Phased builds cost 15-25% more overall due to repeated setup and call-backs. Complete in one phase where possible.
Every project is unique. Contact us for a detailed, no-obligation quote tailored to your specific requirements.
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"J&G Conwell Construction delivered our extension on time and within budget. Their transparent pricing and clear communication made the whole process stress-free. Highly recommended for any Dublin homeowner."
— Maria O., Clontarf
Common questions Dublin homeowners ask about construction costs
Most extensions under 40sqm don't require planning permission under exempt development rules. However, properties in conservation areas, terraced houses, or those near boundaries may have restrictions. We can advise on your specific situation. Learn more about extensions.
A typical two-storey extension takes 4-6 months from start to finish. This includes 2-4 weeks for planning permission (if required), 2-3 weeks for demolition and groundwork, 8-12 weeks for structural works, and 4-6 weeks for second fix and finishes. Weather and material availability can affect timelines.
Our quotes are comprehensive and include: all labour and materials, site clearance, foundations, structural works, roofing, windows and doors, plumbing and electrical rough-in, plastering, painting, tiling, and waste removal. We also include provisional sums for unknown issues discovered during works. Request a detailed quote.
Yes. The SEAI grants offer up to €8,000 for heat pump systems, €4,500 for external wall insulation, and €600 for solar PV. The Housing Renovation Incentive (HRI) scheme provides tax relief for renovation costs. See all available grants.
A full renovation of a 3-bed semi-detached house costs €40,000-€80,000 depending on scope. Light cosmetic renovation (paint, floors, kitchen refresh) starts at €15,000. Full structural renovation with new kitchen, bathrooms, and rewiring typically costs €50,000-€100,000+. View renovation services.
Dublin's higher costs reflect skilled labour shortages (15-20% premium), elevated planning fees and development levies, challenging site access in established neighbourhoods, increased material logistics costs, and strong demand from ongoing housing and commercial development across the city.
Every project is unique. Contact us for a detailed, no-obligation quote tailored to your specific requirements.