Home Extensions in Dun Laoghaire, Dublin
Compare home extensions professionals in Dun Laoghaire. Free quotes, no obligation.
Need home extensions services in Dun Laoghaire? Major coastal town with a mix of period terraces, harbour-side apartments, and suburban family homes. Active property market. QuoteHub connects you with trusted local professionals serving the Dun Laoghaire area.
Home Extensions Costs in Dun Laoghaire
Typical costs for home extensions in the Dun Laoghaire area (Dublin pricing applies):
| Service | Typical Cost | Notes |
|---|---|---|
| Single-storey rear (20 sq m) | €60,000 | €105,000 | Finish level, ground conditions, access |
| Two-storey side (40 sq m) | €120,000 | €210,000 | Structure, foundations, services |
| Wraparound extension | €90,000 | €180,000 | Size, design complexity |
Dublin area estimates, 2026. Request quotes for accurate pricing.
Home Extensions FAQs
A single-storey rear extension costs €2,000 to €3,500 per square metre, depending on location, specification, and ground conditions. A 20 sq m extension typically costs €40,000 to €70,000.
Extensions up to 40 sq m to the rear are generally exempt from planning permission, subject to conditions. Side and front extensions typically require planning.
A single-storey extension typically takes 8-14 weeks. Two-storey extensions take 12-20 weeks depending on complexity.
Extensions that add usable space, such as a kitchen-dining-living area, typically add more value than cosmetic renovations. A well-designed extension can add 10-20% to property value.
For anything beyond a simple rear extension, an architect adds significant value in design, planning compliance, and project management.