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

  • “Awaiting Testimonial.”  Verified Review By Houzz

    Charlton Kings Cricket Club Pavilion, Charlton Kings, Cheltenham, Gloucestershire.

    Charlton Kings Cricket Club Pavilion, Charlton Kings, Cheltenham, Gloucestershire.
  • “Awaiting Testimonial” Verified Review By Houzz

    Mr S – Western-super-Mare, Somerset, 12.2m Wide x 7.0m Deep Timber Framed Garage with Golden Oak Sectional Doors
  • “Really happy with this building, it was delivered and installed in 8 weeks and Garden Retreat did a great job, no fuss, they just got on with it, very happy 🙂” Verified Review By Houzz

    Mr & Mrs S – Blandford Forum, Dorset – Lyndhurst 4.2m x 2.6m Composite Clad Garden Office with Anthracite Grey Double Glazed Doors & Windows
    Bournemouth, Dorset
  • We have found the Garden Retreat team easy to work with – they are clear as to what will be provided in their building and their team members are friendly and hard working.

    We changed the design during the process, and they discussed the details and continued to adjust their quote, to ensure that the correct specification was being provided for the building’s needs.

    The final product – a meeting room in a community garden – was delivered, and we are pleased with the result. The quality of finish is high, and all of the work was completed to a very good standard.” Verified Review By Houzz


    Calthorpe Community Gardens – Grays Inn Road, London 10.0m x 4.2m Commercial Garden Office
  • “We chose Garden Retreat to install a stand-alone custom garage build in the summer of 2020. Having researched various local options we decided to use James and his team because of the customisable choices with the size of the building, and the different finishes available. We chose the cedar door and roof options with a feathered-edge cladding and the end result is great. From the start of the project right through to the end there was no delay in communications and answers to the many questions we had were answered promptly. The building itself went up very quickly and we are pleased with the quality and sturdiness of the garage. Thanks again and we have already recommended the team to friends and family.” Verified Review By Houzz

    Mr & Mrs D – West Moors, Dorset, 3.2m Wide x 7.0m Deep Single Timber Garage
  • ‘”With limited space available, Jim and his team from Garden Retreat helped me through the design phase which enabled me to end up with the garden room/office that I was looking for. The quality of build is excellent and I would not hesitate in recommending Garden Retreat for your project.

    PS I have bought shelving, a large desk and a work bench with tool racking so a real man cave. Yet to all be installed but by the time you come next it will be and happy if you wanted to take some more shots. 

    So as an office, work area overlooking garden it’s spot on!'”Verified Review By Houzz

    Mr & Mrs O – Easton, Bristol – 5.6m X 2.4m Cedar Clad Garden Office With Anthracite Grey Double Glazed Sliding Doors & Windows
  • ‘With limited space available, Jim and his team from Garden Retreat helped me through the design phase which enabled me to end up with the garden room/office that I was looking for. The quality of build is excellent and I would not hesitate in recommending Garden Retreat for your project.

    PS I have bought shelving, a large desk and a work bench with tool racking so a real man cave. Yet to all be installed but by the time you come next it will be and happy if you wanted to take some more shots. 

    So as an office, work area overlooking garden it’s spot on!’ Verified Review By Houzz


    Mr M – Poole, Dorset – 3.6m x 2.4m Cedar Clad Garden Office with Anthracite Grey Double Glazed Doors & Windows
  • ‘I was impressed by the team who built it in two days during some very nasty weather. It is an excellent office and has been much admired, thank you Garden Retreat’ Verified Review By Houzz

    Mr & Mrs P – Wincanton, Somerset, 3.8m x 4.3m x 2.5m High, Cedar Clad Curved Roof Garden Office with Anthracite uPVC Windows and Doors
  • “We have been really impressed with Garden Retreat.  They have supported us throughout the project and even though there were delays which were outside our control they went over and beyond to get the cabin built.

    The installation staff were polite and they kept the area tidy as they worked, a great experience!” Verified Review By Houzz

    Mr & Mrs E – Dorchester, Dorset – 5.2m x 3.4m – 44mm log Open Plan Barbados Log Cabin – 2.5m Maximum Height
  • “Grannies Grotto! This has been a fantastic solution to a space problem and my Grand Children love to stay in it when they come to visit.  It is safe and warm all year round and allows me to have all my family to stay whenever they like”.

    “Garden Retreat have kept me informed at every stage and the installation team were very efficient and polite, thank you very much!” Verified Review By Houzz

    Mrs K – Sturminster Marshall, Dorset – 12ft x 8ft Traditional – 2.5m High Garden Office or Garden Room
  • “Thank you so much for everything, especially your expertise & thoughtfulness, a pleasure doing business with you and we have no problem recommending your work 100%” Verified Review By Houzz

    Mr & Mrs W– Portland Bill, Dorset – 14ft x 11ft Customised Beach Hut
  • “We were very pleased with Garden Retreat, right through from the initial design to installation.  It was not easy for the installation team to complete the job from an access point of view but nothing was a problem, they just got on with the job.  I would recommend this company; they were excellent, polite and efficient in all aspects, thank you!” Verified Review By Houzz

    Ms S– London SW6 – 2.6m x 4.8m Contemporary Garden Office – 2.5m Maximum Height
  • “Being a thorough sort of person I researched a number of options for my 20ft x 12ft timber garage and went into great detail, creating spreadsheets and detailing the pros and cons.

    I knew I wanted a quality product and I wanted to have tanalised timber which narrowed the field too.  I was also concerned about the point at which any wood might be sitting in water on the base.

    Garden Retreat ticked all the boxes, the garage sits on 1 course of bricks and the cladding stops short of the base, so even if water does stand on the base it won’t make contact with the wood.  Additionally, Garden Retreat ply line their garage for extra strength and security.  In the end, the choice was easy, only Garden Retreat met all my criteria and they were a pleasure to deal with from pre-order to delivery. The erection was on time, quick and fuss-free and the finished product looks fantastic. Highly recommended supplier!” Verified Review By Houzz

    Mr M – Chesterton, Oxfordshire – 12ft x 20ft Single Timber Feather Edge Garage
  • “Hi Jim,

    Everything is great with the summerhouse! I think it’s virtually bomb proof!!…….. Very happy.

    Of course I can do a positive testimonial from me no problem at all.

    And if it helps you can show our building to someone else if they want to see it. Just give me a call…….

    All the best!”


    Verified Review By Houzz

    Mr & Mrs S, Christchurch, Dorset, 3.0m x 4.0m Contemporary Garden Room
  • “A great experience. Jim was informative throughout the process, answering all our awkward questions with real knowledge and insight. The final building exceeds our expectations. Brilliant!”. Verified Review By Houzz

    Ms R – Crystal Palace, London, 4.0m x 2.8m Contemporary Garden Office with Grey Anthracite uPVC Doors and Windows
  • “We have been very happy throughout the process from design to installation with Garden Retreat.  We were not the easiest of Customers, we wanted a very specific look and detail is important to us.

    James spent a lot of time working with us to ensure all the elements were designed into the building and had a large number of examples of previous projects which demonstrated their ability to provide us with the garden office and store we wanted.

    Finally they worked very well with our garden designers, the installers were polite and cleared up after the timber building had been installed.

    We would be happy to recommend Garden Retreat to any of our friends and would like to thank them for all their efforts.” Verified Review By Houzz

    Mr & Mrs S – Bourne End, Bucks, 5.5m x 3.0m Garden Office and Store
  • “The team who assembled the unit were friendly- efficient and professional. Any questions were answered and nothing was too much trouble. Great value and these guys would come very highly recommended!” Verified Review By Houzz

    Hampton Farm Shop, Evesham, Hampton, Worcester – 26m x 6.1m – Farm Shop
  • “We were very pleased with the studio that James designed for us. He accommodated all our requirements and created a very well designed building. The construction was completed on time and to plan. I would be very happy to recommend Garden Retreat.” Verified Review By Houzz

    Ms E – Downton, Salisbury, 8m x 5m Cedral Clad Garden Leisure Room With W.C. and Kitchen / Utility Room.
  • “We are so happy with the quality of the building, the doors and windows are of the highest quality, Garden Retreat have provided an excellent product, we could not be any more happy and cant wait to move in”. Verified Review By Houzz

    Cropredy Marina, Cropredy, Banbury, Oxfordshire,13m x 8m Pavilion Marina Sales Office
  • “James was very helpful and proactive during the design phase and suggested lots of options when we were designing the office. After the installation he was keen to check everything was in order. He was rapid and timely sorting out the minor niggles that occur on any project and made sure that we were completely happy with our office after installation. He was a pleasure to work with and I would recommend his expertise and proactive approach.”. Verified Review By Houzz

    Mr & Mrs S – Downton, Salisbury, Wiltshire, 4.4m x 4.0m x 2.5m High Contemporary Garden Office with Grey Anthracite uPVC Doors and Windows
  • “We sought a non standard design and build to our outline spec for a 10m x 6m garage to be used for classic car storage. We awarded the contract to Garden Retreat in part because of the advice on materials and construction offered by their James Parker. From design through planning approval to construction took 3 months. Erection of the sectional garage took 3 hours (excluding tiling). Brilliant to watch. Price quoted was the price paid. No hidden extras. Well worth taking the elevation drawings to aid planning. Very satisfied with the finished product. Thank you.” Verified Review By Houzz

    Mr S – Devon, 10.0m x 6.1m Triple Timber Garage with a 4.2m Aluminium Insulated Roller Garage Door in Golden Oak and a Metro Tile Roof
  • “James at Garden Retreat was a true professional and understood straight from the start what we wanted to achieve in building a garden room containing a home gym. His knowledge and experience helped enormously. The room was built on a hill with difficult access but that was not a problem for Garden Retreat. We are so pleased with the end result and it is in keeping with the rest of the house. I would highly recommend James at Garden Retreat” Verified Review By Houzz

    Mr & Mrs W – Studland, Dorset, 6.0m x 4.0m Contemporary Garden Gym with 3.0m Anthracite Grey uPVC Patio Doors
  • “I contacted Garden Retreat because they were Dorset-based, the right sort of price range and I was looking for  a company who provided individually designed buildings rather than an inflexible standard package.  From the beginning the service was personal, engaged and professional. It was a long journey from design through planning permission and a large amount of ground work to be done before the base could be laid and throughout James Parker remained helpful and available, if needed, with experienced advice. An unexpected but necessary alteration the week before the building was due to arrive was imaginatively  and speedily resolved. The build itself took just two days and I was delighted by the finish inside and the quality of the work. I’m really, really pleased, and the studio is a lovely place to work.” Verified Review By Houzz

    Mrs D – Whitchurch Canonicorum, Nr Bridport, Dorset, 7.5m x 4.5m Cedar Clad Garden Studio with Cedar Shingles
  • “We were really worried with this project as it was important with a limited budget and the need to provide an annex for my disabled mother we really needed to ensure we chose the right company.

    We are so happy with the service we received from Garden Retreat, they did a fantastic job and my mother has a fantastic annex, thank you so much!” Verified Review By Houzz

    Mr & Mrs C – Totnes, Devon, 9.0m x 4.2m Kensington Garden Room with Rationel White uPVC Windows and Doors and Marley Weather Board in Green
  • “James and the team at Garden Retreat have been great – I was not certain what I wanted and when I thought I did I then changed my mind (on several occasions). They fulfilled all promises, were flexible and provided a very good quality product at a price which could not be matched.

    I now have an attractive garden building which for me will provide office and storage space.

    I am happy , very happy and so are my neighbours!” Verified Review By Houzz

    Mr P – Earlsfield, London, 3.8m x 2.4m x 2.5m High, Cedar Clad Contemporary Garden Office with Black uPVC Windows and Doors
  • “I contacted Garden Retreat as I wanted to have my own beauty salon at home. Being clear about what I wanted Garden Retreat were able to satisfy all my needs including budget and design They also came up with some further ideas enabling me to maximise the space and end up with a fabulous contemporary salon which is a great place to work, not only for myself but also a relaxing environment for my clients. I would highly recommend Garden Retreat’s service.” Verified Review By Houzz

    Mrs L – Lymington, Hampshire, 6.2m x 3.6m x 2.5m High, Contemporary Garden Beauty Saloon with Anthracite uPVC Windows and Doors
  • “We are extremely pleased with our new garage and would thoroughly recommend Garden Retreat, great quality and a great service!” Verified Review By Houzz

    Mr B – Staines-Upon-Thames, Middlesex, 19ft wide x 18ft Deep Double Timber Garage with Cedar Shingles and Cedar Up and Over Doors
  • “So pleased with the garage, great product, there were a few issues but Garden Retreat soon resolved them” Verified Review By Houzz

    Mr S – West Monkton, Somerset, 20ft x 40ft Quadruple Timber Garage with Three Bay Garage and Built-in Garden Office
  • “Garden Retreat installed a home office for us (including laying of the concrete base). The project was undertaken at the agreed time and there were no hidden or additional costs.

    We are very happy with the end result; an excellent office space that is comfortable to work in and looks good.

    Garden Retreat were highly professional and helpful. A pleasure to deal with.”  Verified Review By Houzz

    Mr & Mrs P – South Wonston, Hampshire, 3.6m x 3.7m x 2.5m High, Cedar Clad Curved Roof Garden Office with Anthracite uPVC Windows and Doors
  • “Absolutely fantastic, a very strong structure and extremely well built. James at Garden Retreat provided excellent service, I would have no hesitation in recommending the Company and their products” Verified Review By Houzz

    Mr M – Wooton, Bedfordshire – 20ft x 20ft Timber Frame Garage with Barn Doors
  • “We not only required a contemporary garden building to replace our old summerhouse but also wanted it to look attractive, be protected from the elements and use it as a functional utility room.  Garden Retreat provided all of the above and more.  Very happy with their work, the quality and it was within our budget. ” Verified Review By Houzz

    Mr & Mrs W – Charmouth, Dorset – Cedar Clad Utility Room
  • “This project worked out superbly and Garden Retreat were great providing us with a high quality structure which will stand the test of time for the Crowle community”. Verified Review By Houzz

    The Community Farm Shop At Crowle, Crowle, Worcestershire.
  • “So pleased with my garden office, value for money and a great place to work” Verified Review By Houzz

    Mr P – Christchurch, Dorset – 3.8m x 2.4m x 2.5m High, Cedar Garden Room with Black uPVC Windows and Doors and Black Composite Decking
  • “Very pleased with our new garden office” Verified Review By Houzz

    Mr & Mrs F – North Baddesley, Hampshire 3.8m x 4.3m x 2.5m High, Cedar Clad Curved Roof Garden Office with Anthracite uPVC Windows and Doors
    North Baddersley, Hampshire
  • “James and Garden Retreat provided a fantastic service from start to finish. They recently built and installed a beautiful bespoke garden office / living space in our back garden. We are delighted with it! The customer service was also truly bespoke. James came to visit us several times throughout the process and was very responsive via telephone and e-mail at any time. He provided really practical, common sense advice and we never felt we were being sold anything at all. The building is beautiful – the bespoke design means it fits perfectly in our space and feels like it has been there for years! The cedar cladding and grey uPVC windows / doors really add a touch of class. Internally the vinyl flooring provided a very nice finish. Importantly also, James and the team that installed the building were respectful, friendly and genuinely nice people. We can highly recommend James and Garden Retreat for customer service and high quality craftsmanship” Verified Review By Houzz


    Mrs & Mrs C – Bournemouth, Dorset 6.2m x 3.6m x 2.5m High, Cedar Clad Garden Office with Anthracite Grey uPVC Windows and Doors
    Bournemouth, Dorset