Return on RenoRenovation ROI Intelligence
IRELAND · 2026

Attic bedroom conversion cost in Dublin, IE

High buyer appealAttic bedroom conversion in Dublin, IE

In Dublin, IE, a midrange attic bedroom conversion typically costs around €64,600 — about 8% above the national average, reflecting local labour and material prices. On average it recoups about 61% of its cost at resale.

Dublin renovation costs are elevated, reflecting strong construction demand, a tight labour market, and higher material prices than much of Ireland.

Local cost factors in Dublin, IE

Tight labour market
Strong construction demand and a limited pool of trades keep Dublin pricing above the rest of Ireland.
Higher material prices
Import reliance and freight lift material costs relative to larger mainland markets.
Planning & older stock
Georgian and period housing plus planning requirements add complexity to extensions and structural work.
Estimated cost in Dublin, IE€64,600
Typical range€54,900€74,300
Resale value added€39,400
Cost recouped (ROI)61%
National average (for comparison)$65,000

What's included

Pro tip: The value isn't just the square footage — it's the bedroom count. Check what a 3-bed vs. 2-bed sells for in your comps before committing to the bathroom, which is the single biggest cost driver.

What affects the cost of a attic bedroom conversion

Structural reinforcement
Attic floors often need stronger joists to carry living loads — a foundational early cost.
Headroom & dormers
Meeting minimum ceiling-height code may require dormers or roof changes, a major structural expense.
Egress & code
A legal bedroom needs a compliant egress window or route and proper insulation, heating and electrical.
Bathroom
Adding an en-suite means running plumbing up to the attic — the biggest single optional cost, but a big usability gain.

Estimate your attic bedroom conversion in Dublin, IE

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100%
Step 1 of 4
Estimated cost
$65,000
Typical range $55,300 – $74,800
Moderate return
Cost recovery
Resale value $39,700 Net cost $25,400
52
/ 100
Reno Score
52 / 100 · Balanced upgrade
About half of this comes back at resale — the rest buys you the use and enjoyment in the meantime. A reasonable trade if you plan to stay a while.
Cost recouped at resale61%
About half comes back; the rest buys the use and enjoyment.
Resale value added
$39,700
Net cost after resale
$25,400
“Net cost” = cost − resale value added: the part you don't recoup at sale, not a loss.

Estimates are for planning purposes only. Actual costs, resale value and ROI may vary by market, property condition, project scope, contractor pricing and timing. This is general information, not financial, investment, construction, legal or tax advice.

Cost breakdown
Labour ≈ $32,500 (50%) Materials ≈ $32,500 (50%)
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How it compares

Every project ranked by how much of its cost you recoup at resale, at your settings. Your pick is highlighted.

strong moderate low payback
Cost
$65,000
ROI
61%
Net cost
$25,400
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Attic bedroom conversion in Dublin, IE: common questions

General guidance for attic bedroom conversion projects — figures quoted are national averages; see the table above for Dublin, IE estimates.

How much does an attic conversion cost in 2026?

About $65,000 on average, from roughly $40,000 for a basic conversion to $100,000+ for one with dormers and a full bathroom.

Does converting an attic add value?

It recoups around 61% of its cost, and adding a bedroom — especially going from two to three — can lift value more than the square footage alone suggests.

What makes an attic a legal bedroom?

Minimum ceiling height over enough of the floor, a code-compliant egress window or route, proper insulation, heating and electrical, and adequate floor strength.

Attic or basement conversion — which is better?

Basements are usually cheaper (the shell exists at grade); attics can add a genuine bedroom with better light but often need structural and headroom work.

Other locations

Regional figures apply a local cost adjustment to national midrange averages and are planning estimates only — confirm with local contractor quotes. Not financial or real-estate advice. Reviewed June 2026. See our full methodology →

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