The external insulation grant for a mid-terrace house
A mid-terrace house gets a fixed €3,500 from SEAI for external wall insulation. The typical one has about 48 m² of outside wall, and a typical job for that wall costs about €14,000, so about €10,500 is left to pay. That's about €72 of grant for every square metre.
Two outside walls, the smallest grant, and what's left.
Free, no obligation. One registered contractor prices it, not five.
- €3,500SEAI external insulation grant
- 48 m²outside wall, typically
- about €14,000a typical job that size
- about €10,500left to pay

The grant against the wall
| Size | Outside wall | Typical job | Left after the grant | Grant per m² |
|---|---|---|---|---|
| Smaller than most | 39 m² | about €11,200 | about €7,700 | about €90 |
| About average | 48 m² | about €14,000 | about €10,500 | about €72 |
| Bigger than most | 65 m² | about €18,800 | about €15,300 | about €54 |
The wall areas are from the BER register for homes of this type built before 2011. The typical job is what grant-funded external insulation typically costs, scaled to the wall.
Your grant against your walls
Four quick taps. You see your grant, your wall, what a job that size typically costs and what's left. Your number is only asked for at the end, if you want a price.
An average semi-detached house: about 91 m² of outside wall, a typical job of about €23,200, the €6,000 grant, so about €17,200 left to pay.
How this is worked out
The grant is SEAI's fixed amount for your house type. The wall area is the median outside wall on the BER register for homes of your type built before 2011, or the smaller or larger quarter if you picked those. The typical job is what grant-funded external insulation typically costs for your house type, scaled to that wall. Your contractor prices your house after a look: it's a guide to plan with, never a quote. SEAI decides every grant.
Front and back
A mid-terrace has two outside walls, the front and the back, so it has the least wall of any house, about 48 m². The grant is €3,500. Because there's so little wall, the fixed costs of the job (scaffolding, the front door and windows to work around) are a bigger share of the bill, so a terrace pays more per square metre than a semi-D.
On a terraced street, the front wall is the one planning cares about: the planning rules.
Questions people ask
How much is the external insulation grant for a mid-terrace?
€3,500.
How much does it cost to wrap a terraced house?
A typical job for a typical mid-terrace's 48 m² of outside wall costs about €14,000, so about €10,500 after the grant.
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Your grant against your walls
Four taps to your grant, your wall and what's left. Then, if you want, one SEAI-registered external insulation contractor who covers your county rings with a price.
