Sandringham
From £30,700
Launched at the RHS Chelsea Flower Show and built to the highest industry standards.
- Sizes
- 4m × 3m to 10m × 5m
- Roof
- Flat or optional pitched*
Full collection page: coming soon in the prototype
View collection: Sandringham →
Garden rooms · made to order in Oxfordshire
Garden Rooms
Residential-grade garden rooms for working, training, creating and hosting, designed by architects and engineers and installed by our own teams.
Five collectionsContemporary, Heritage and the Signature collection
From £17,490Installation included within 100 miles of our workshops
Year-roundInsulated, triple-glazed, with smart air conditioning
10-year guaranteeCovering timber rot, decay and structural integrity
The collections
Five collections, one standard
Every Crown garden room shares the same included-as-standard specification. Choose the style, size and roof that suit your garden.
Signature collectionSandringham · Clarence · Buckingham · SIPs or traditional timber stud · Professional or Premium package
Clarence
From £31,700
A more architectural, contemporary design for those who want a room that breaks the mould.
- Sizes
- 4m × 3m to 10m × 5m
- Roof
- Flat or optional pitched*
Full collection page: coming soon in the prototype
View collection: Clarence →
Buckingham
From £41,150
Our largest garden room, drawing on our entire garden room portfolio.
- Sizes
- 5.5m × 3m to 10m × 5.5m
- Roof
- Flat or optional pitched*
Full collection page: coming soon in the prototype
View collection: Buckingham →
Heritage
From £18,030flat · pitched from £21,850
Traditional and contemporary combined, for more light and more headroom.
- Sizes
- 3m × 3m to 6m × 4.5m
- Roof
- Flat or optional pitched
Contemporary
From £17,490
Clean-lined, contemporary rooms designed as a natural extension of your home and garden.
- Sizes
- 3m × 3m to 7.5m × 4m
- Roof
- Flat roof, single-piece EPDM
Heritage & Contemporary
The same standard, from £17,490
Traditional timber stud and one specification, with everything the Signature collection includes as standard: insulation, triple glazing, smart air conditioning and a full electrical package.
Compare all five collections →"From" prices and sizes from crownpavilions.com collection pages, 1 Oct 2026 (VAT basis TBC), shown without the live site's discount wording. Heritage's £18,030 is the flat-roof price; pitched from £21,850. Signature "From" prices are the Professional package. *Optional pitched roof on Sandringham, Clarence and Buckingham is per Matthew and not yet on the live site.
By use
A room for the way you live
Each collection can be fitted out for the way you'll use it.
Guest room & annexe
Overnight guest space or self-contained living for family.
Overnight use needs planning permission and building regulationsChoose a collection →Included as standard
Standard on all five collections
Not upgrades: every Crown garden room is built to TRADA standards with this specification.
✓Insulation150mm up to 280mm combined wall, roof & floor build-up
✓Triple glazingSuperior thermal performance and energy efficiency
✓Smart air conditioningMonobloc system for cooling, heating and dehumidifying
✓Aluminium doors & windowsPremium aluminium on every collection
✓Full electrical packageSwitches, sockets, dimmers and LED lighting, pre-wired
✓10-year guaranteeCovering timber rot, decay and structural integrity
Prices
From £17,490
Every "From" price includes the building, installation by our in-house team (within 100 miles of our workshops) and the full standard specification.
Finance available. 10-Year Plan or Buy Now, Pay Later. Representative examples on each collection page. Subject to status.
What's included, and what's extra
Included
InstallationBy our own teams within 100 miles of our Oxfordshire workshops; a travel surcharge applies beyond that.
Included
ElectricsFull electrical package, pre-wired and connected to your supply by our installation team. The supply run from your house: TBC
Quoted separately
FoundationsGroundworks (a concrete base or ground screws) are quoted separately after a site survey.
Optional
Extras3kW infrared heater, panel or underfloor heating, plumbing, toilet and shower, quoted individually. Full options list TBC
Compare
Compare garden rooms
The five collections side by side: sizes, roof, construction and the specification they share.
| Signature collection | |||||
|---|---|---|---|---|---|
SandringhamFrom £30,700 View collection → | ClarenceFrom £31,700 View collection → | BuckinghamFrom £41,150 View collection → | HeritageFrom £18,030flat · pitched from £21,850 View collection → | ContemporaryFrom £17,490 View collection → | |
| Sizes | 4m × 3m to 10m × 5m | 4m × 3m to 10m × 5m | 5.5m × 3m to 10m × 5.5m | 3m × 3m to 6m × 4.5m | 3m × 3m to 7.5m × 4m |
| Floor area | 12–50m² | 12–50m² | 16.5–55m² | 9–27m² | 9–30m² |
| Roof | Flat or optional pitched*Flat: single-piece EPDM · pitched finish TBC | Flat or optional pitched*Flat: single-piece EPDM · pitched finish TBC | Flat or optional pitched*Flat: single-piece EPDM · pitched finish TBC | Flat or optional pitchedPitched: asphalt tiles or cedar shingles · flat: EPDM | FlatSingle-piece EPDM rubber roof |
| Construction | SIPs or traditional timber stud | SIPs or traditional timber stud | SIPs or traditional timber stud | Traditional timber stud | Traditional timber stud |
| Packages | Professional or Premium | Professional or Premium | Professional or Premium | One specification | One specification |
| In a line | Launched at the RHS Chelsea Flower Show | A more architectural, contemporary focus | Our largest garden room | More light, more headroom | A natural extension of your home and garden |
| Included as standard on all five collections | |||||
| Insulation | ✓150mm up to 280mm combined wall, roof & floor build-up | ||||
| Glazing | ✓Triple glazing | ||||
| Climate | ✓Smart air conditioning: cooling, heating and dehumidifying | ||||
| Doors | ✓Aluminium doors and windows | ||||
| Electrics | ✓Full electrical package, pre-wired | ||||
| Guarantee | ✓10-year guarantee covering timber rot, decay and structural integrity | ||||
Swipe to compare all five collections →
From crownpavilions.com collection pages, 1 Oct 2026 (VAT basis TBC; prices shown without the live site's discount wording). *Optional pitched roof on Sandringham, Clarence and Buckingham is per Matthew; the live pages currently list a single-piece EPDM flat roof only. Pitched finish and price TBC.
Still deciding? See them side by side at a show site. 5.0 on Trustpilot · 348 reviews
Book a show-site visitReal installs
Garden rooms in real gardens
Offices, gyms, studios and guest rooms, built by our own teams.
Coming soonGarden room installs and owner storiesPhotos and stories from real Crown gardens, shared with the owners' permission.
See the gallery →★★★★★
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.”
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.”
Customer · Jan 2026★★★★★
Customised Garden Room Project
“We are very pleased we chose Crown Pavilions for our garden room project. The whole experience has been excellent from customisation of the design, quality and speed of the build and excellent communication throughout.”
Customer · Oct 2024Static copy of real garden-room reviews from crownpavilions.com/reviews, 1 Oct 2026. The build would use the live Trustpilot feed.
Your project
Planning, fit and seeing one in person
Our design consultants guide you from the first sketch to installation, with no pressure and no hurry.
Planning guidance
Do I need planning permission?
Our standard garden rooms are designed to fall within permitted development in most cases. As a guide:
- Up to 2.5m high if within 2m of a boundary
- Further away: up to 3m, or 4m with a dual-pitched roof
- Not in front of the house, and no more than half the garden built on
- Sleeping or living in it needs planning permission
Guidance only. Check the Planning Portal or your local planning authority before you build.
Will it fit?
A consultation, your way
Talk through size, position and access with a design consultant. We can prepare a scaled drawing of your garden with the room in place.
A site survey before installation confirms the right base for your garden.
Visit us
See a garden room in person
Book a visit and a design consultant will call to confirm a time, and which show site has the collection you'd like to see.
- Six show sites
- Woburn Sands · Ware · Wickford · Chessington · Bagshot · Bridgemere (gazebos only)
Do I need planning permission for a garden room?
Typically not. All our standard garden rooms are designed to fall within permitted development, though there can be exceptions depending on where you live and where you build. Our team will advise on your situation.
Will I need a base for my garden room?
Yes. You'll need a concrete base or ground screws in place before we install. We carry out a site survey to assess which suits your garden, and quote groundworks separately.
Is installation included in your prices?
Yes, for customers within 100 miles of our Oxfordshire workshops. Beyond that, a travel surcharge applies.
How long does installation take?
It depends on the collection and size. A typical medium-sized standard garden room (5m × 3.5m) takes approximately 2–3 weeks.
Are your garden rooms suitable for winter use?
Yes. Every room has a 150–280mm insulated build-up and smart air conditioning for heating, cooling and dehumidifying as standard.
Can you sleep in a garden room?
Many customers use theirs as a guest bedroom or annexe. Sleeping in a garden room means complying with building regulations, and overnight use needs planning permission.
Where can I see a garden room?
At our show sites. Book a visit and we'll call to confirm which site has the collection you'd like to see on display.
Your next step
Come and see it in person
Six show sites, open seven days. Choose a site, a day and a time, and a design consultant will meet you.
Prefer to talk? Call 01491 612820
“Crown Pavilions’ buildings are undoubtedly the best that money can buy, they exceeded our expectations at every stage.”
5.0 on Trustpilot · 348 reviews8,000+ buildings in 28 countries