The Lyndhurst Garden Offices and Garden Rooms
  • The Lyndhurst Garden Building – Inc. Delivery & VAT
  • Truly ZERO Maintenance with multiple coloured composite cladding options
  • Comes with easy to install rubber roof – 20 Years Guarantee
  • Range of uPVC window and door options in various colours
  • Ready to insulate and board to your specification
  • Standard 2.5m height – (subject to local council requirements)
  • FREE 2 Man COVID-19 Safe delivery in 4 to 6 weeks
  • On-Site build support packages if required

The Lyndhurst Composite Garden Office and Garden Room is a garden building requiring ZERO maintenance, it never needs painting or treating, just a light rinse with a hose to remove any residual dirt, it doesn’t get any easier than that!

They come in 6 sizes with a range of standard window and door options including French doors, bi-fold doors and sliding doors. Please also note we can also provide bespoke sizes and additional window and door combinations.

The Lyndhurst Composite Garden Office and Garden Room is supplied as an easy ‘self-install’ building and comes with full instructions and all parts are clearly marked, we do however recommend the erector is a competent ‘DIYer’.

The design of the building allows the ‘customer’ to install the electrics to suit your needs, insulate and board with any material you choose and with a range of composite cladding colours and window colours you can tailor the building to suit your exact requirements.  We can also supply a roof lantern as part of the design which looks fantastic.

The structure is manufactured with pressure treated 75mm x 50mm timbers throughout, with a breathable membrane, 25mm external air gap with the composite cladding attached to external battens.

To ensure the cladding is secure and watertight on the connections we install high performance powder coated corner, end and butt joint trims to guarantee high strength and waterproof joints with no distortion, cracking or warping. They also come in matching colours to suit the cladding colour range.

The composite wood grained external cladding does not contain wood fibres or organic materials so just by its very nature is resistant to rot, decay, and attack by insects. It will not absorb moisture, expand or contract and ultimately will not split or crack.

With excellent wind and hail impact resistance the wood-grain embossed matt finished boards and aluminium powder coated trims provide an extremely high quality product.

Finally, the Lyndhurst Garden Office and Garden Room windows and doors are extremely secure with steel reinforced profiles, multi-lock doors and a ridged construction. Overall your garden building will ensure the contents will be safe and secure.

The contemporary roof is popular when you want a building that is not too obtrusive in the garden. The overall height is 2.5m therefore sits within the permitted development rules but it is always worth checking with your local planning authority.

The rubber membrane supplied is bonded to the roof using the adhesive supplied and the edges are trimmed with the edging trims and corners provided. It is extremely easy to apply and comes as part of the self-install kit.

Guttering and down pipes are supplied and fitted as standard to the front & back of the pitched roof. Please note the roof overhangs the walls of the buildings by 6″ (150mm) at the gable ends, and 1′ (300mm) to the front and the back – this is in addition to the size of the building. We can however adjust the overhang sizes in the event of space restrictions.

The mono roof design has guttering to the rear only, or to just one side depending on the slope of the roof. The guttering in this instance is hidden by using barge boards.

The guttering and down pipes are supplied in either black or brown.

We do not supply an electrics pack due to the large range of electrical choices and as the building is not supplied pre insulated you would a require first and second fix installation with your choice of fittings.  In addition to this the electrical installation will have to be certified by a suitable qualified electrician.

If however we are providing a turn key installation we would be happy to install the electrics.

  • External Clad – 203mm Coastline composite cladding in various colours (Anthracite Grey, Pigeon Blue, Moondust Grey, Taupe, Soft Green and Oyster) Requires ZERO maintenance and comes with a 10-year manufacturers guarantee.
  • Heavy Duty Floor – 75mm tantalised framing, 20mm T & G floor and insulation as an option.
  • 5 Layer wall specification excluding insulation and inner board choice – composite cladding batten / ventilation gap, breathable membrane, T & G wall onto 75mm pressure treated framing. Insulation is an additional option (supply only) followed by your choice of internal finish.
  • Contemporary Roof – Roof sloping from front to back with firrings. uPVC barge boards hide the fall of the roof and the cover up the edge of the rubber roof
  • Groundwork – There are a range of options, Concrete base, timber base or existing hard standing.  For more information please click here or contact us for advice.
  • uPVC Doors – The Lyndhurst Garden Office comes with either French doors, bi-folds or sliding doors in a range of colours doors are 1200mm wide and come in a range of colours, Anthracite Grey, White, Black, Oak or Green.

Full height residential specification doors with a clear opening height of 1870mm (uPVC French Doors), 1866mm (uPVC Bi-Fold Doors), 1920mm (uPVC Sliding Patio Doors)

  • Windows – Corner window unit is available, additional windows can be incorporated into the design if required.
  • Windows & Doors – Include the following:
  • Colour matched UPVC doors complete
  • Steel reinforced profiles
  • Adjustable hinges (French Doors and Bi-Fold doors only).
  • High Security Multi-point locking system.
  • Internally beaded for improved security.
  • 28mm Double Glazed Toughened Safety glass to BSEN1279 & BSEN12150
  • Exceptional thermal efficiency with low-e Argon filled glass units.
  • Supplied complete with handles, cill and overhead ventilator


  • Insurance recognised locking system to doors and windows – The doors have a multi-lock system and the windows have locking handles. All profiles are steel reinforced.
  • Colour Options – The doors and windows and cladding options come in a range of colours.
  • Skirting and trims – Skirting is not included but if you request a turnkey solution, we would be happy to include them as part of the project.
  • FSC Sustainable timber – All timber is from Scandinavian certified and sustainable forests (carcass only)
  • Breathable membrane – This allows any moisture inside the building to pass out through to the membrane into the vented area behind the composite cladding. It also stops moisture from passing back into the building.
  • Electrics pack – We do not supply an electrics pack due to the large range of electrical choices and as the building is not supplied pre insulated you would a require first and second fix installation with your choice of fittings.  In addition to this the electrical installation will have to be certified by a suitable qualified electrician.
  • Roof Overhangs – There overhangs around the building which contribute to weather proofing for longevity.
  • Guttering – At present we do not provide guttering in the self-install pack but would include it in a turnkey project.
  • Self-Install Instructions- Supplied with full installation instructions for both the building and the doors.
Additional Composite Cladding Colours (Pigeon Blue, Moondust Grey, Taupe, Soft Green and Oyster) NO YES
Grey composite decking included in Turnkey Projects NO YES
Black guttering / down pipes included in Turnkey Projects NO YES
insulate, board and finish internally included in Turnkey Projects NO YES
Internal partitions NO YES
Insulation (either supply only of as part of Turnkey solution) NO YES
Internal Doors NO YES
Laminate flooring included in Turnkey Projects NO YES
uPVC French doors YES NO
uPVC Door & window colours Free of charge – white, oak, rosewood YES NO
uPVC Other door & window colours POA NO YES
uPVC Corner glass combination left or right NO YES
uPVC Sliding patio doors left or right NO YES
Aluminium Bi-Folds NO YES
In glass blinds NO YES
Other window & door combinations NO YES
As part of Turnkey solution NO YES

Garden Retreat can provide either Hire Purchase or Finance lease options and there is also a large amount of other funding resources available.

If you require planning information we are happy to advise and support, please click here for further information.

All prices include installation, VAT, the only additional cost would be delivery which is listed in the table below.

For further information please either complete the contact form below or call one of our team.

BUILDING SIZE Glazed 2400mm 2400mm Black Chrome Satin Wall Roof Floor In Glass
WIDTH x DEPTH £ Corner Patio Door Bi-Folds Furniture Furniture Furniture Insulation Insulation Insulation Window Blinds
3600mm x 2550mm £7,314.00 £648.00 £228.00 £1,440.00 £0.00 £43.20 £43.20 £517.20 £201.60 £103.20 POA
3600mm x 3750mm £7,495.00 £648.00 £228.00 £1,440.00 £0.00 £43.20 £43.20 £618.00 £252.00 £103.20 POA
4200mm x 2550mm £6,845.00 £648.00 £228.00 £1,440.00 £0.00 £43.20 £43.20 £567.60 £201.60 £129.60 POA
4200mm x 3750mm £10,134.00 £648.00 £228.00 £1,440.00 £0.00 £43.20 £43.20 £668.40 £302.40 £103.20 POA
4800mm x 2550mm £8,574.00 £648.00 £228.00 £1,440.00 £0.00 £43.20 £43.20 £618.00 £252.00 £156.00 POA
4800mm x 3750mm £10,674.00 £648.00 £228.00 £1,440.00 £0.00 £43.20 £43.20 £718.80 £352.80 £181.20 POA

Delivery is to any mainland UK address using a specialist Home Delivery Company who we have worked in partnership with for many years.  Unlike a normal ‘courier’ our Delivery Team will contact you by phone to arrange a suitable delivery date.  The day before the delivery where possible the driver will be in touch again to give a better indication on the time of your delivery.  The two-man Delivery Team will also deliver the product to the location of your choice.

If in the unlikely event there are any damages or shortages to your delivery, please in the first instance call or email us within 48 hours to report this.  Please also take photos of the delivery if possible.

The Lyndhurst Garden Room Delivery & Returns Terms & Conditions Click Here