Garden office, gym, or studio — choosing the right brief
The single decision that determines insulation, ventilation, glazing, and resale value of your build.
A garden room is a single architectural shell, but the brief that lives inside it changes everything. The same 4 × 3 m footprint can be a daily workspace, a year-round home gym, or a music studio — and the build details that make each one work are quite different.
Brief 01 · The home office
The most common Arden & Oak brief. Single occupant, computer-based work, year-round daily use. The right room is small, well-glazed for daylight, and insulated to take the edge off a January morning in under ten minutes.
- — 01Footprint 8–12 m² (3 × 2.5 m is plenty for one person).
- — 02Floor-to-ceiling glazing on the garden side — daylight is the productivity multiplier.
- — 03Wired CAT-6 ethernet alongside the standard sockets — Wi-Fi from the house is unreliable at distance.
- — 04Quiet 1.5 kW infrared heater rather than a fan-blown unit.
- — 05Acoustic plasterboard on the wall behind the desk for video calls.
Brief 02 · The home gym
A gym is the most physically demanding brief on the building. Heavy weights load the floor; cardio loads the ventilation; year-round 6am workouts load the heating. The build details have to match.
- — 01Footprint 12–18 m² (a squat rack + bench needs 3.5 × 3 m clear).
- — 02Reinforced floor — minimum 18 mm plywood subfloor before rubber matting.
- — 03Ceiling height ≥ 2.4 m at the lowest point (overhead press clearance).
- — 04Cross-ventilation — opening windows on opposite walls, not just one side.
- — 05230 V isolated circuit for treadmill / cable machine.
- — 06Acoustic floor underlay so dropped dumbbells don't telegraph through the garden.
Brief 03 · The studio (yoga, music, art)
Studio briefs are the most varied — a yoga teacher and a guitarist have nearly opposite acoustic requirements — but they share a common thread: the building has to respect the practice happening inside it.
- — 01Yoga / pilates: timber floor, north-facing glazing to avoid harsh light, underfloor heating for cold practice mornings.
- — 02Music / recording: double-glazed acoustic windows, dense rockwool insulation (not standard PIR), no reflective surfaces facing the mics.
- — 03Painting / craft: huge north-facing glazing, white interior walls, a deep eaves overhang to keep direct sun off the work.
“Spend the consultation on the brief, not the building. We can always adjust the building. We can't always retro-fit a misjudged brief.”— Arden & Oak — design principles
If you genuinely don't know yet
Plenty of clients can't fully predict how they'll use the room two years in. In that case we'll build for the most demanding brief on your shortlist — typically gym-grade floor + studio-grade insulation — and let the room flex around your life. It's a small premium that pays back the moment your plans change.
