Services · from £55,000
Annexe Garden Rooms
An annexe garden room is a self-contained garden building with a kitchenette, bathroom and bedroom space — designed for adult children, ageing parents, guests or long-stay lets. Built to full Building Regs sign-off, not a summerhouse with a bed in it.
Purpose
Why people build a garden annexe.
- Give ageing parents independence next to the main house
- House adult children moving back home
- Create long-stay guest or family accommodation
- Provide an ancillary living space for a live-in carer or au pair
What's included
Specification.
- Full Building Regs sign-off (not a caravan / mobile home)
- Kitchenette with hob, sink and full fridge
- En-suite shower room with mains drainage
- Step-free access and wider door openings
- Separate consumer unit and utility metering ready
- Insulation and glazing to full residential standard
Types
Types of garden annexe we build.
Studio annexe
Open-plan living/bedroom with kitchenette and en-suite.
One-bedroom annexe
Separate bedroom, living room, kitchenette and shower room.
Accessible annexe
Step-free, wider doors and level-access wet room throughout.
Two-bedroom annexe
Two bedrooms, larger living space and full kitchen.
Styles
Styles & finishes.
Cottage-form
Pitched roof with weatherboard for traditional gardens.
Modern flat-roof
Contemporary render or cedar with a warm-flat roof.
Barn-form
Vaulted internal ceiling with dark cladding outside.
Courtyard annexe
L-shaped plan enclosing a private outdoor deck.
Sizes
Common sizes.
- Studio — 5m × 6m
- Open-plan living, kitchenette and en-suite shower room.
- One-bed — 5m × 8m
- Separate bedroom, living room and kitchenette.
- Accessible — 6m × 8m
- Wider circulation and level-access wet room.
- Two-bed — 6m × 10m
- Two bedrooms, living, kitchen and shower room.
At a glance
- Typical size
- 5m × 6m up to 6m × 10m
- Build time on site
- 10–14 weeks
- Planning
- Full planning required
- From
- £55,000 inc VAT
FAQ
Common questions.
Does it count as a separate dwelling?
Only if planning is granted for that use. Most annexes are consented as ancillary accommodation to the main house — we walk you through the difference.
Can I let it out on Airbnb?
This depends on your planning consent and council rules. We'll flag any restrictions before quoting.
Get a quote
Ready to price your garden annexe?
Tell us about your plot and what you need. We'll come back within one working day.