Included as standard
V-groove matchboard
Walls and ceilings in V-groove matchboard cladding, whitewash painted.
Garden rooms · Heritage collection
Heritage
Traditional and contemporary combined. Choose a flat roof, or the optional pitched roof with its front gable for more light and more headroom.
From £23,750
Flat roof, including delivery, installation by our own team and our full standard specification. Pitched roof from £31,250 (felt tiled) or £34,200 (premium cedar tiled).
Your visit request arrives with "Heritage" already filled in.
- Sizes
- 3m × 3m – 6m × 4.5m
- Pitched roof optional
- Flat or pitched
- FSC redwood frame
- Timber stud
- Guarantee
- 10 years
Finance available on our 10-Year Plan and Buy Now, Pay Later. See the representative example
Specification
Built to be lived in
Residential-grade construction, with the features others charge extra for included as standard.
Construction
Traditional timber stud frame in FSC-certified Northern European Redwood. Architect- and engineer-designed, built to Timber Development UK (previously TRADA) standards.
Roof
Flat: single-piece EPDM rubber roof. Pitched: felt (asphalt) tiles or premium cedar tiles, lead-capped, with a front gable.
Insulation
High-performance insulation: from 150mm up to 280mm combined wall, roof & floor build-up, for year-round use.
Triple glazing
Triple glazing as standard for superior thermal performance and energy efficiency.
Smart air conditioning
Monobloc smart air conditioning: cooling, heating and dehumidifying, included as standard.
Aluminium doors & windows
Premium aluminium doors and windows, included as standard.
Electrics & lighting
Switches, sockets and dimmers included; all lighting and electrical points pre-wired.
Interior
Walls and ceilings in V-groove matchboard cladding, whitewash painted, included as standard.
Triple glazing
As standard, for warmth and quiet all year.
Smart air conditioning
Cooling, heating and dehumidifying.
Aluminium doors & windows
Premium aluminium, across the range.
High-performance insulation
150–280mm wall, roof & floor build-up.
Full electrics & lighting
Switches, sockets and dimmers, pre-wired.
10-year guarantee
Timber rot, decay & structural integrity.
External cladding
T&G or weatherboard profile, in 12 paint colours in our 3D planner. Any price difference by profile or colour: TBC.
Clover leaf
Obsidian
Volcanic Ash
Carolina Stone
Hemlock
Life of Riley
Dune Grass Green
Jungle Green
Burlesque
Super White
Sargasso Sea
Antler Brown
Pitched roof finish
Felt tiles in black or brown, or premium cedar tiles. Each roof is priced for every size in the selector below.
Asphalt black
Asphalt brown
Cedar tiles
Flooring
Plywood base floor, or a flooring upgrade at £85 per m².
Plywood
Walnut
Grey oak
Natural oak
Options & upgrades
Choose your interior finish
Whitewashed V-groove matchboard walls and ceilings come at no extra cost.
Optional
Pitched roof
The ceiling follows the roofline, with a skylight as drawn. From £31,250 felt tiled or £34,200 cedar tiled.
Optional
Store deck
On pitched-roof buildings from 5m wide: £1,600 at 5m, £1,700 at 5.5m, £1,800 at 6m and 6.5m.
Optional
Flooring upgrade
£85 per m², on any size. Finish choices to confirm with your design consultant.
Veranda
A decked front veranda, priced by the width of the building front: £1,150 at 3m, £1,200 at 3.5m, £1,250 at 4m, £1,300 at 4.5m, £1,350 at 5m, £1,450 at 5.5m, £1,600 at 6m and £1,700 at 6.5m.
Optional extras
Heating, plumbing and bespoke fit-out, quoted individually. Heritage-specific prices: TBC
Sizes & prices
Find your size
Widths from 3m to 6.5m and depths from 3m to 5m, in half-metre steps. Choose a size and a roof to see the price.
Width
Depth
Selected4m × 3m12m² floor area
Price£23,750includes delivery, installation & standard specification
3D configurator
Design your Heritage in 3D
Set the size, choose the roof, cladding, doors and finishes, and watch your garden room take shape as you go. Save and share your design with our team.
What's included
Clear about what you're paying for
Heritage
From £23,750
Flat roof, 4m × 3m. Includes the building, delivery, installation by our in-house team and the full standard specification.
Finance. 10-Year Plan (8.9% APR representative) or Buy Now, Pay Later (9.9% APR): 20% deposit, loans from £1,000 to £50,000. Subject to status.
What's included, and what's extra
- Included
Standard specificationTriple glazing, smart air conditioning, aluminium doors & windows, 150–280mm insulated build-up, V-groove matchboard interior, 10-year guarantee.
- Included
Delivery & installationBy our own in-house specialist teams, with minimal disruption.
- Included
ElectricsFull electrical package, with all lighting and electrical points pre-wired. The supply run from your house: TBC
- Quoted separately
FoundationsA concrete base or ground screws, quoted after a site survey to find the right base for your garden.
- Optional
Pitched roofPriced by size instead of the flat roof: from £31,250 felt tiled, or £34,200 premium cedar tiled.
- Optional
Veranda, store deck & flooringVeranda £1,150–£1,700 by width; store deck £1,600–£1,800 (pitched, from 5m wide); flooring £85 per m².
Representative example: 10-Year Plan
Credit is subject to status, age and affordability. Minimum spend and terms & conditions apply. Crown Pavilions Limited is a credit broker, not the lender. Other finance options are available.
- Cash price
- £23,750.00
- Deposit (20%)
- £4,750.00
- Amount of credit
- £19,000.00
- Duration of agreement
- 120 months
- Interest rate (fixed p.a.)
- 4.91%
- Representative APR
- 8.9%
- 120 monthly payments of
- £236.00
- Total amount payable
- £33,070.00
Uses
One room, many lives
Designed for multi-use: office, gym, studio or entertainment space.
Entertaining
A games room, bar or den for family and friends.
The Heritage is sold for non-habitable use. Sleeping or living in it needs planning permission and building regulations.
Compare
How the Heritage compares
All three share the same included-as-standard specification. The differences are style, size and roof.
 |  You are viewing |  | |
|---|---|---|---|
| Sizes | 3m × 3m to 7.5m × 4m | 3m × 3m to 6m × 4.5m | 4m × 3m up to 10m × 5.5m |
| Roof | Flat, single-piece EPDM | Flat or optional pitchedFelt or premium cedar tiles | Flat or optional pitchedPitched finish and price: TBC |
| Construction | Traditional timber stud | Traditional timber stud | SIPs or traditional timber stud |
| Packages | One specification | One specification | Premium or Platinum |
| Character | Clean, contemporary lines | More light, more headroom | Launched at the RHS Chelsea Flower Show |
Standard on all: triple glazing · smart air conditioning · aluminium doors & windows · full electrical package · 150–280mm insulation · 10-year guarantee
Your project
Will it fit, and do I need planning?
Our design consultants will help with both, with no pressure and no hurry.
Will it fit?
A consultation, your way
Talk through size, position, roof and access with a design consultant. We can prepare a scaled drawing of your garden with your Heritage in place.
A site survey before installation confirms the right base for your garden.
Planning guidance
Designed for permitted development
The Heritage is designed to comply with permitted development in most cases. As a guide:
- Up to 2.5m high if within 2m of a boundary. The pitched Heritage is drawn at 3.0–3.25m overall
- 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
- Not for sleeping or living in without planning permission
Guidance only. Check the Planning Portal or your local planning authority before you build.
Real installs
Heritage garden rooms in real gardens
See how other owners have sized, finished and used theirs.
Pitched roof, by the fairway
A cream Heritage with a dark tiled pitched roof and glazed front, set beside a golf course.
Size · use · county: TBC
A lounge in matchboard
Whitewashed V-groove matchboard under a pitched ceiling, with glazed doors onto the garden.
Size · use · county: TBC
A games room
A pool table, artwork and track lighting inside a whitewashed Heritage interior.
Size · use · county: TBC
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.”
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.”
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.”
Nov 2025
What size Heritage garden rooms are available?
From 3m × 3m up to 6m × 4.5m, and the price guide lists sizes up to 6.5m wide and 5m deep. Choose your size in the selector above or in the 3D configurator.
Flat or pitched roof?
Both. The flat roof is a single-piece EPDM membrane. The optional pitched roof, in felt tiles or premium cedar tiles, adds a front gable and more headroom. Every size is priced for all three roofs in the selector above.
How much more is the pitched roof?
It depends on the size. At 4m × 3m the flat roof is £23,750, felt tiled £31,250 and premium cedar tiled £34,200.
Do I need planning permission?
In most cases, no. The Heritage is designed to comply with permitted development, though there are exceptions depending on where you live, where you build and the height of the roof you choose.
Will I need a base?
Yes: a concrete base or ground screws. We carry out a site survey to assess which suits your garden, and quote groundworks separately.
Is installation included?
Yes. Prices include delivery and installation by our in-house specialist teams.
Can I use it all year round?
Yes. The insulated 150–280mm build-up and smart air conditioning, for heating, cooling and dehumidifying, are included as standard.
What is the interior finish?
Walls and ceilings in whitewashed V-groove matchboard, at no extra cost. A flooring upgrade is £85 per m².
Brochure & visits
See the Heritage for yourself
One short form. Ask for a brochure, book a show-site visit, or arrange a design consultation at home or by video.
- Digital or printed garden rooms brochure
- Show-site visit with a named consultant
- Design consultation and scaled garden drawing
- No obligation, and no chasing
Prefer to talk? Call 01491 612820