Crown Pavilions
Large bespoke Crown timber building with an al fresco room, set among planted borders

Luxury Garden Annexes

Self-contained living accommodation for family members or guests.

The World’s Finest Granny Annexes

Our bespoke garden granny annexes provide unique contemporary living space. Designed to suit your needs, garden annexe buildings are increasingly popular, not only for bringing ageing parents closer, or to house a live-in nanny or carer, but also for young adults saving to get onto the property ladder. Our garden rooms come in three distinct styles: Classic, Inspired, or your own bespoke style.

  • UK’s #1 Residential Grade Garden Rooms
  • 20 years of British Craftsmanship
  • Outstanding Durability
  • More Customisations as Standard
  • The Crown Marque of Excellence

What we could build for you

Bedroom and living room of a Crown timber building opening onto a terrace and hot tub
Crown timber garden room with a furnished terrace and a bar by the coast
Large bespoke Crown timber building with an al fresco room and planted borders
Bespoke Crown building with a covered bar area and a garden room, reached by stepping stones across the lawn
View over a garden from inside a Crown building through open dark grey folding doors
L-shaped Crown garden room with dark grey folding doors and a hot tub

Crown bespoke buildings shown. Your annexe is designed around your family and your plot.

Micro Home

Micro Home

Complete with residential-grade 90mm, high-density, foil-backed insulation for the roof and floor and 100mm Rockwool insulation for the walls, and professional plumbing and electrics, our annexe buildings are designed to provide a beautiful micro home for those you want to keep close by.

Crown Buckingham Luxury Garden Room on a winter evening

Design your garden room in 3D

Choose the collection, size, layout and finish on our 3D configurator, then come and see the real thing at a show site.

Ready to plan your building?Book a free consultation with one of our design experts, see the real thing at one of our six show sites, or download the brochure.

Granny Annexe Considerations

Whatever your garden annex ideas and requirements, with 20 years of experience, our team is the best in the business at helping our clients plan their luxury garden annexe.

Configuration

Configuration

Why not create a large one-bed flat with an en-suite and kitchen for your elderly relative? Or a two-bed with a shared bathroom and kitchenette for your teenagers? You could even create a luxury garden guest room for your friends. For more annex ideas, visit our Planning Portal, or see our full range of luxury garden rooms.

Convenience

Convenience

A luxury granny annexe provides an inviting space to host guests, socialise with friends, family and neighbours, and hold intimate gatherings.

Add Value to Your Home

Add Value to Your Home

Escape the distractions of home life and set-up your very own creative space in your posh shed. Maybe you’ve taken up oil painting, watercolours or cross stitch, or perhaps you need a professional work environment for your next business venture or work from home arrangement. You can do all these things with an annexe building.

Planning permission

Planning permission

A garden annexe built as a permanent building, with a bedroom, bathroom or kitchen, is not covered by permitted development rules, so it normally needs planning permission. Planning considerations may also vary depending on where you live. For more information, see our garden room planning permission guide.

Garden Annexes FAQs

Common questions about garden annexes.

Who is a garden annexe for?
Garden annexes are popular for bringing ageing parents closer, housing a live-in nanny or carer, and for young adults saving to get onto the property ladder.
Does a garden annexe need planning permission?
Usually, yes. A garden annexe built as a permanent building, with a bedroom, bathroom or kitchen, is not covered by permitted development rules, so it normally needs planning permission. Planning considerations may also vary depending on where you live.
What layouts are possible?
You could create a large one-bed flat with an en-suite and kitchen for an elderly relative, or a two-bed with a shared bathroom and kitchenette for your teenagers.
How is a garden annexe insulated?
With residential-grade 90mm, high-density, foil-backed insulation for the roof and floor and 100mm Rockwool insulation for the walls, plus professional plumbing and electrics.
Can I install a toilet or shower in my garden room?
Absolutely. We can quote for the addition of a toilet and shower in your garden room. This is a very popular garden room addition and saves you or your guests having to traipse through your house to use a bathroom.
How long will it take to install my garden room?
All our garden rooms are built from the ground up, using structurally engineered SIPs or traditional timber stud framing on the Sandringham, Clarence and Buckingham, and traditional timber stud framing on the Heritage. The build timeframe will depend on your chosen model, and whether it’s a large, medium or small garden room. The installation time frame for a typical medium sized standard garden room (5mx3.5m) is approximately 2-3 weeks.
Where can I view your garden rooms?
We have multiple UK show sites where you can view our luxury garden rooms. Our show sites are located across Essex, London, Surrey, Hertfordshire, Buckinghamshire and Cheshire. Please visit our Show Sites page for more information.
Aerial view of a large bespoke Crown timber building with dark roofs, arranged around a central courtyard in open countryside

Possibilities are endless

A bespoke Crown building, shown here. Tell us what your family needs and we will design around it.

Crown Pavilions wooden gazebo in a landscaped English garden

Take the Next Step

Get inspired by perusing our brochure and then visiting one of our show sites.

Or call us on 01491 612820 to speak with our team.

Our Delighted Customer

Lord Alan Sugar

Lord Alan Sugar

Entrepreneur

After looking at numerous garden rooms and luxury wooden gazebos on the market we decided to go with Crown Pavilions as their buildings are undoubtedly the best that money can buy and the service level was exceptional. They exceeded our expectations at every stage. If you are looking for the best garden buildings on the market, then Crown Pavilions is the company to hire!

Stunning bespoke Sandringham garden room

Crown constructed a bespoke Sandringham garden room for us, to house a gym and sound proofed rehearsal studio. They are an absolutely brilliant company who provided a first class service from the first to the last engagement. The garden room is absolutely stunning.

Customer Verified
Feb 2026

Choosing the right provider

Choosing the right provider for our garden room took some time, but opting for the Crown Sandringham turned out to be an excellent decision! We're thrilled with it; it has truly transformed our space. The entire Crown team was outstanding throughout the entire process.

Customer
Jan 2026

Would definitely recommend

Quick, friendly, informative, and cleaned up after them. The installation was excellent, and the service from the original point of contact in the office was all very professional.

Customer Verified
Nov 2025

Come and see it in person

Six show sites across England. Choose a site, a day and a time, and a design consultant will meet you there.

Prefer to talk? Call 01491 612820 or book a free consultation

Our six show sites

  • Essex
  • London
  • Surrey
  • Hertfordshire
  • Buckinghamshire
  • Cheshire
Find your nearest show site
Brochure Book a visit