# Garage Conversion Cost Dublin | 2026 Prices and What's Included

> Garage conversion cost in Dublin in 2026: typically €15,000–€45,000 depending on insulation, flooring, heating and structural work. What drives it.

URL: https://structuralengineer.ie/guide/garage-conversion-cost-dublin/

Cost Guide

# Garage Conversion Cost in Dublin (2026)

What it costs to turn an integral or attached garage into a room in Dublin, and where the structural money goes.

By StructuralEngineer.ie · Reviewed by Joachim Louw, CEng MIEI · Updated 19 October 2026

[StructuralEngineer.ie](https://structuralengineer.ie/)'s summary of published Irish figures: a garage conversion in Dublin typically costs **€15,000–€45,000**, with a basic conversion around **€20,000–€25,000**. Insulation, flooring, heating, windows and any structural work drive where you land. No Dublin-specific 2026 source exists, so treat these as national ranges.

Garage conversion cost in Dublin is mostly about turning a cold, low, uninsulated shell into a room that meets the Building Regulations. The structure is usually a modest share of the budget, but it’s the part that has to be right first.

## Typical costs at a glance

| Item | Typical range | Notes |
| --- | --- | --- |
| Basic conversion | €20,000–€25,000 | Insulation, infill wall, window, finishes |
| Full range | €15,000–€45,000 | Depends on spec and structural work |
| Opening into the house (load-bearing) | €2,500–€5,000 | Steel, padstones, making good |
| Structural engineering | Small share | Infill foundation, lintels, openings, sign-off |

## Where the money goes

**The infill wall.** A cavity wall where the garage door was, on a foundation designed for it. Garage thresholds usually have little or no footing.

**The floor.** Garage slabs are often a step below the house and uninsulated. A new damp-proof membrane, insulation and screed or a raised timber floor brings it level and meets Parts C and L.

**Walls and ceiling.** Insulation and plasterboard, and fire separation if part of the garage stays.

**Openings.** A window in the infill wall, and often a doorway or full opening through to the kitchen.

**Services.** Heating, electrics and ventilation.

## What pushes the price up

- Opening through to the house where the wall is load-bearing

- A cracked or uneven slab that needs breaking out

- Drains or a soil stack running through the garage

- Higher-spec finishes, underfloor heating or a utility area

- Changes to the front elevation that need planning permission

## Bottom line

Budget €15,000–€45,000, with a basic Dublin garage conversion around €20,000–€25,000. Get the infill foundation and any opening into the house designed first. For a fixed engineering fee, call [01 270 9764](tel:+35312709764).

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## Frequently asked questions

**Is a garage conversion cheaper than an extension?**

Usually, per square metre, because the walls, roof and foundations already exist. The structural work is limited to the infill wall, new openings and any opening through to the house.

**Does a garage conversion need planning permission?**

Converting an integral or attached garage is often exempted development, counted against the rear extension allowance. Estate conditions and changes to the front can affect that, so get a Section 5 declaration from your council if unsure.

**Does opening the garage into the kitchen add much?**

It adds a steel beam and padstones if the wall is load-bearing, which it often is, plus making good. That typically sits in the €2,500–€5,000 range for an internal opening with one storey above.

Sources

- [OnlineTradesmen.ie: Garage conversion costs and ideas](https://www.onlinetradesmen.ie/Blog/garage-conversions-costs-ideas.aspx)
- [OnlineTradesmen.ie: Create the space you need](https://www.onlinetradesmen.ie/AMP_EDN/5129/create-space-you-need-617.amp.html)
- [Cork Demolitions: Cost to remove a load-bearing wall](https://corkdemolitions.ie/cost-to-remove-load-bearing-wall/)

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