Wall System Cost per m² in Ireland 2026 — Five Systems, the Live Numbers

Wall system cost per m² of wall in Ireland in 2026. Blockwork with external insulation: €110–€160. ICF: €180–€240. Timber frame: €200–€280. SIPs: €240–€320. CLT: €280–€360. For a 150 m² house with ~200 m² of wall: €22,000–€72,000 for the wall system. Block is the cheapest; CLT the most expensive. Trade-off: cost vs speed vs U-value vs lifetime carbon. None wrong; some wrong for your site or your BER target. Most Irish self-builders on standard sites choose blockwork with external insulation; on BER A1-targeted builds, timber frame or ICF is more common; on Passive House, SIPs is the default.

TL;DR

• Wall system cost per m² of wall in Ireland 2026: Block €110–€160. ICF €180–€240. Timber frame €200–€280. SIPs €240–€320. CLT €280–€360.

• For a 150 m² house with ~200 m² of wall: €22,000–€72,000 for the wall system. Block is the cheapest; CLT the most expensive.

• Trade-off: cost vs speed vs U-value vs lifetime carbon. None wrong; some wrong for your site or your BER target.

When this matters most

You're pricing wall systems.

When this doesn't apply

You've already specified a wall system.

Frequently asked questions

What is the cheapest wall system in Ireland in 2026?

Blockwork with external insulation: €110–€160/m². For a 150 m² house: €22,000–€32,000 for the wall system.

What is the most expensive wall system in Ireland?

CLT: €280–€360/m². For a 150 m² house: €56,000–€72,000. Low embodied carbon and architectural quality justify the premium for some.

What is the cost difference between ICF and timber frame?

ICF is €180–€240/m², timber frame is €200–€280/m². Timber frame is slightly more expensive per m² but reaches weathertight 1–2 weeks faster on a 150 m² house.

Sources

Building Regulations 2023, TGD-L. https://www.gov.ie/