House specification · Garden footprint
Garden Rooms Built Like Homes
Most garden rooms in Ireland are insulated sheds. Ours is the Don Modular Home at its smallest sizes — the same steel frame, 200 mm insulation, underfloor heating and full bathroom, sitting at the end of your garden.
Fully fitted · €2,400 / m²
€60,480 from
Smallest
25.2 m²
3.6 × 7 m
Planning
Handled
designed to your grant
Garden buildings of 25 m² and over require planning permission; we design to your grant. Foundations, delivery & installation quoted separately.
One room, many jobs
Office, studio, gym or guest suite
Because every size ships with a bathroom, a kitchenette, heating and cooling as standard, the same room does jobs a standard garden pod can't.
The garden office
Warm in January without a fan heater: underfloor heating, 0.18 W/m²K walls, and two Cat6 points per room for a proper desk setup. A bathroom means no trips back to the house between calls.
The studio or gym
Air conditioning for summer sessions, a shower for after, and Class A1 non-combustible cladding outside. The 25–28 m² sizes give real floor space for equipment, with a shower room after.
The guest suite
A self-contained space with full bathroom and kitchenette — comfortable for visiting family for a weekend or a month. Larger sizes step up toward a full garden home.
Sizes & prices
Garden room sizes, same transparent rate
Width 3.3, 3.6 or 4.6 m, with a minimum build size of 25 m². Price is floor area × €2,400, fully fitted — the same rate as our full homes.
| Size | Floor area | Fully fitted price | Suits | Planning* |
|---|---|---|---|---|
| 3.6 × 7 m | 25.2 m² | €60,480 | Garden office or studio — our smallest build | Permission needed |
| 3.3 × 8 m | 26.4 m² | €63,360 | Narrow-plot studio | Permission needed |
| 4.6 × 6 m | 27.6 m² | €66,240 | Studio or gym with shower room | Permission needed |
| 4.6 × 8 m | 36.8 m² | €88,320 | Guest suite with living space | Permission needed |
Garden buildings of 25 m² and over require planning permission in Ireland — our minimum build size means every Don Modular garden room does. We design to your grant of permission; your local authority handles the application.
Not an insulated shed
The same spec as our houses — at 10 m²
We don't build a lighter product for gardens. Every garden room carries the full Don Modular specification:
✓G550 galvanised steel frame
✓200 mm insulation — U ≈ 0.18 W/m²K
✓80 mm thermally broken glazing
✓Electric underfloor heating
✓A++ air conditioning
✓Full bathroom + kitchenette
✓Fire sprinklers to BS 9251
✓Cat6 data, two points per room
Questions
Garden rooms — FAQ
How much does a garden room cost in Ireland?
Our garden rooms are priced like our homes: €2,400 per square metre, fully fitted, with a minimum build size of 25 m². The smallest, a 25.2 m² (3.6 × 7 m) room, is €60,480; a 36.8 m² guest suite is €88,320. Unlike typical garden room pricing, that figure includes underfloor heating, air conditioning, a bathroom and a kitchenette — not just the shell. Foundations, delivery and installation are quoted separately after a site assessment.
Do I need planning permission for a garden room?
Yes. Ireland's planning exemption for rear-garden structures only covers buildings under 25 m², and our minimum build size is 25 m² — so every Don Modular garden room requires planning permission. We design to your grant; your local authority handles the application, and the rules for your site are always worth confirming with them early.
Can a garden room be used as an office all year round?
Ours are built for it — the same specification as our full homes: 200 mm insulation with a wall U-value around 0.18 W/m²K, thermally broken 80 mm aluminium glazing, electric underfloor heating and an A++ air-conditioning unit for summer, plus two Cat6 data points per room. It is a house-grade building that happens to be in your garden, not an insulated shed.
Can guests stay in a garden room?
Every size includes a full bathroom and a fitted kitchenette as standard, so a larger garden room works as a self-contained guest suite. Note that using a garden structure as an independent dwelling changes its planning status — check with your local authority for anything beyond occasional guest use.
Next step
Put a house in the garden
Tell us the size you're thinking of and where the garden is — Dublin or anywhere in Ireland. We'll confirm the fitted price and quote the site work, or show you the finish quality at the Phibsborough showroom.