Built like a home.
Designed for life.
Three ways to buy · From £10,495 installed
Three simple ways to buy.
Whether you’re looking for a ready-to-order garden room or a completely bespoke design, we’ve made the buying process simple.
Arden Edition
One carefully selected premium specification.
Choose your model. Choose your size.
We’ll build the rest.
Bespoke Collection
Choose your model, glazing, cladding, finishes and options.
Designed around your home.
3D Builder
Design a completely bespoke garden room from scratch.
Live pricing. Unlimited possibilities.
Three refined spaces,
designed around how you live.
Each typology is fully bespoke — drawn for its garden, its aspect and the way you want to use it.
See all 13 models →
Garden Offices
A calm, insulated workspace designed for focus, daylight and year-round comfort.
Garden Gyms
Private wellness spaces with reinforced flooring, climate control options and a clean architectural finish.
Garden Studios
Flexible garden rooms for creativity, guests, relaxation or multi-use living.
Take the collection with you.
Explore our garden buildings, finishes, construction approach and the choices available — all in one considered brochure.
A better way to build a garden room.
Most garden rooms are a basic shell with everything else added later. We design every Arden & Oak as a complete, high-performance space from the outset.
SIP Engineered Construction
Structural insulated panels for superior strength, rigidity and thermal performance — the foundation of every Arden & Oak.
Ventilated Wall System
Counter-battened rainscreen cavity behind the cladding — the wall stays dry through every British season.
Price Match Promise
Bring us an equivalent written quote — we'll match it and aim to beat it. Quality stays the same.
Premium Internal Finish
Painted birch ply included as standard. Plasterboard upgrade available.
Planning Guidance
Most builds fall within permitted development. We handle applications where required.
Single Point of Contact
One studio lead from first call to handover. No salespeople, no handovers.
Compare the structure, not just the price.
Many garden rooms look similar from the outside. The construction behind the cladding rarely is. Use this as a reference when comparing any two written quotes.
Built to a budget.
- —50 mm timber stud wall
- —50 mm insulation
- —Melamine internal finish
- —No ventilated cavity
- —Limited thermal performance
Built to a standard.
- +122 mm SIP wall construction
- +90 mm PIR insulated core
- +Ventilated rainscreen cavity
- +Painted birch ply interior
- +Superior thermal efficiency
- +Greater structural strength
What’s actually behind the cladding.
Five layers, engineered to work together. Watch the wall come apart — and learn why a fully-built Arden & Oak feels nothing like an ordinary garden room.
- Layer · 01 / 05
Premium timber cladding
Western Red Cedar · Thermowood · RedwoodA weather-graded timber rainscreen installed over a counter-batten cavity so the wall stays dry and breathes through every British season.
- Layer · 02 / 05
Counter battens
25 mm vertical · pressure-treatedSet behind the cladding to create the ventilated cavity. Air moves freely up the wall, moisture drains away, and the cladding sits clear of the membrane.
- Layer · 03 / 05
Primary battens
Horizontal carrier · pressure-treatedThe fixing layer for the cladding boards. Sat across the breather membrane on the warm side of the cavity so every screw line is true and concealed.
- Layer · 04 / 05
SIP panel
OSB skins · structural insulated coreThe structural heart of the building. Engineered panels deliver superior strength, rigidity and an airtight envelope in a single component — twice the performance of a typical stud wall at the same thickness.
- Layer · 05 / 05
9 mm birch ply interior
Painted · FSC certifiedThe finished face of the room. Smooth, durable, lightly grained and ready for everyday life — included as standard, no plasterboard upgrade required.
The Pavilion — Surrey
A two-volume garden room for work, leisure and evening use — bar, lounge and quiet office under one roofline.
“It is, without question, the most considered piece of work any tradesperson has done on our home. The detail is quietly extraordinary.”
One building. Any garden.
Every Arden & Oak room is drawn around your aspect, your planting and your light. The architecture stays disciplined — the world around it changes.
Suburban dusk
A flat-paved patio, mature beech behind, soft warm dusk. The Mono as we delivered it.
Japanese gravel — dawn
Pale silver gravel, a single Japanese maple, blue-hour stillness. The same envelope, recast as a meditation studio.
Coastal headland — noon
Beach grasses leaning in the wind, sea-pebble gravel underfoot, distant horizon. A working studio that earns its view.
Heather moorland — late afternoon
Low purple heather, weathered granite, a single rowan. The same architecture, somewhere quieter.
House extension vs garden room.
Thinking about adding more space to your home? We compare a traditional house extension with a modern garden room to help you decide which option is right for you.
- Build time
- Planning permission
- Cost considerations
- Disruption to your home
- Installation process
- Why more homeowners are choosing premium garden rooms
Ready to create your space?
Configure your building online, book a private consultation, or take the full collection home as a brochure. A studio lead replies within two working days.
- Usually replies within 2 working days
- No obligation, no sales pressure
- One dedicated project lead