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Dunster House Ltd.
Incorporated. 1994
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Lines re-open tomorrow at 8:30AM
1. Construction options
2. Window and door options
3. Delivery choices
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Two Person Delivery
Collection: Monday – Friday (9:00 – 17:00)
inc. VAT
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Our new Titania Garden Office can now be viewed at our Bedford display area. It has a unique high-quality insulated roof, with excellent thermal insulation properties, made of strong, low- maintenance roof panels.

The garden office is made from pressure treated slow-grown Spruce that comes with a 10-year guarantee against rot and insect infestation, so it will last you well for years to come. It also features fire and moisture resistant inner walls and 28mm sealed unit double glazed windows, made with 4mm toughened glass as standard fitted in our uPVC windows and doors.

We know how important it is to have a bright and airy space to work, which is why our Titania Garden Office has opening windows and double French doors along the front wall of the building, allowing you to relax and enjoy your garden.

Generally, this garden office doesn’t require planning permission, but we do recommend checking with your local authority. It is secure, easy to build, low maintenance and you can even choose the colour of the windows and door frame to really personalize your Garden Office. Why would you consider anything less?

Product Features
Garden Offices 10 Year Timber Guarantee
Garden Offices 10 Year Timber Guarantee II
10 Year Guarantee
All of the exterior timber of your Garden Office is pressure treated. We offer a genuine 10 year guarantee against rot and insect infestation on all of these parts. So you won't need to worry about little critters causing havoc or rot damaging the timber.
Garden Offices 28mm Sealed Unit
28mm Double Glazing
We don't compromise on quality just because it's a garden building. Our garden offices have domestic style uPVC windows and doors, making your garden office secure and highly insulated. The 28mm sealed double glazing provides improved heat and sound insulation.
Garden Offices Fully Pressure Treated
Garden Offices Fully Pressure Treated II
Fully pressure treated
Our Garden Offices are made using non-toxic, pressure treated timber. This process forces wood preservative deep into the pre-cut timber using a large pressure treatment vat. This allows us to offer our customers a 10 year timber guarantee against rot and insect infestation.
Avoid Planning Permission Titania 4.3x3.3
Avoid Planning Permission
All our Garden Offices are under 2.5m high so that under permitted development rights you can place the building within 2m of a boundary if you wish to. Please be aware that any building over 2.5m high needs to be placed over 2m away from any boundary. If you want to find out more about planning permission click here.
Tall Door Height Titania 4.3x3.3
Tall Door Height
With a walkthrough height of over 6'0" (1.84m)​ there's no need to 'duck' on the way in. They are probably the tallest doors on the market and great for moving furniture in and out of your office.
IzoPanel Roof Breakdown Garden Offices
IzoPanel Roof - Panels Garden Offices
IzoPanel Roof
Our Garden Offices feature a very advanced roofing system manufactured by Izopanel.  They use a stiff polyurethane foam core (a material that provides a very low thermal conductivity rating) joined together tightly with overlapping cladding in a trapezoidal profile which makes strong joints that prevent water ingress. Altogether the roof is waterproof, has great thermal characteristics and is uniquely strong. 
Multipoint Locking Windows & Doors French Door Locking Garden Offices
Multipoint Locking Windows & Doors Window Locking Garden Offices
Multipoint locking windows & doors
Our garden offices come with domestic grade multipoint locking windows and doors. Great for securing your garden building and its contents! Euro cylinder locks are used in our uPVC doors in a 9 point locking system to ensure maximum safety and security.
Wide-Opening French Doors Titania 4.3x3.3
Wide-Opening French Doors
The wide-opening french doors on our Titania Garden Office offer you a large walkthrough width of 1.34m or 4’4.75”, which is handy for bringing in bulky items. You can also throw the doors wide to really open up the office to the outdoors, making the most of natural light and fresh air! The doors (and windows) also feature trickle vents to avoid moisture build-up when closed. 
Moisture-Resistant Walls and Floor Exploded Wall
Moisture-Resistant Walls and Floor Exploded Floor
Moisture-Resistant Walls and Floor
Our unique design hinders moisture buildup inside the office. The walls of our Garden Offices have layers of shiplap cladding, moisture resistant membrane, thermal insulation panels and interior walls of Gypsum Fibreboard, which is also fire-resistant. The pressure -treated floor bearers are covered by a layer of Wood Plastic Composite, followed by layers of insulation and MFP fibreboard. These layers minimize the transfer of moisture through the floor and walls, making your garden office a comfortable working environment all year round.  
Fire-Resistant Inner Wall Comparison Fireboard
Fire-Resistant Inner Wall
The inner walls of our Garden Offices are made using a fire-resistant fibreboard – a hard-wearing made from recycled paper fibres and Gypsum (Hydrous Calcium Sulphate). You can be sure in the knowledge that your Garden Office has increased protection from fire. The fibreboard comes unpainted, but you can decorate it to your taste, as it is a good surface for paint and is easy to wallpaper.
15mm Shiplap Cladding Garden Offices
15mm Shiplap Cladding
Shiplap cladding is named after the old boatmaking technique where the boards overlap. This means that the natural timber can expand and contract with the seasons and not create gaps. The curve or channel of shiplap cladding enables water to run off easily
Energy Saving Insulation
The walls, floor and roof of our garden offices are all insulated to lower energy costs. We use Polyurethane to insulate our garden offices, which is proven to retain heat better than cheaper alternatives such as polystyrene or rockwool. The U values of our insulation are as follows: 0.64 W/m2 K in the roof, 0.62 W/m2 K in walls, and 0.70 W/m2 K in the floor.*Insulation means a reduction in loss of heat from an area that has been heated to a different temperature. If no heat has been applied, the insulation will be nominally the same as the outside temperature.
What is a Garden Office?
A Garden Office is a garden building used to create an office away from your home, separating your work life from your home life.

A Dunster House Garden Office is made from slow-grown spruce, 4mm toughened glass and polyurethane insulation, creating a thermally efficient, smart looking product.
What Foundation Do I Need For This Garden Office?
We recommend a flat, level concrete base at least 100mm bigger on each side. e.g. A 4m by 3m building would have a base of 4.2m by 3.2m See more details here.
Do You Offer Any Guarantees Or Warranties On This Product?
We offer a genuine 10-year guarantee against rot and insect infestation on pressure treated timber.
How High Is This Garden Office?
It is 2.48m (8' 1") high
Do I Need Planning Permission For This Garden Office?
Take our quick survey to find out! We also recommend you check the government planning portal.
Is This Garden Office Insulated?
This Garden Office contains floor, roof and wall insulation. The type of insulation we use is called Polyurethane, which is proven to retain heat better than polystyrene or rockwool. This Garden Office also feature 28mm double glazed units to aid in retaining heat.
Does This Garden Office Come With Electrics?
The Alexander, Lienne and Theodore Garden Offices come with a fuse box, halogen spot lights and plug sockets, to help get you up and running quicker.

The Titania and Helena models do not feature any electrics, however you can add these to create your own power & lighting system exactly how and where you want it.
Does This Garden Office Need Treating?
This Garden Office is pressure treated so will not need retreating against fungal decay and insect infestation for up to 10 years. However, we do recommend treating with water repellant for timber maintenance.
Where Can I Visit You? Do You Have A Store Near Me?
We have 6 branches across the UK. Click here to find the nearest one! Please check with us before you visit if you are travelling to see a particular product.

We deliver our garden buildings to mainland United Kingdom (England, Wales and Scotland). Some exceptions apply; these are illustrated on the map below.

Scottish areas may be subjected to slightly longer delivery turnarounds, please contact us for details. FREE delivery on selected products over £200 to mainland England and Wales.

Delivery Price

Green - £19.99 delivery fee on all orders under £200.
Yellow - £59.99 delivery fee.
Orange - £84.99 delivery fee.
Red - We are unable to deliver to these areas.

Assisted Delivery

If you cannot provide an able bodied person to offload the vehicle with the help of our driver, we can provide additional manpower with our Assisted Delivery Service. The driver will arrive with some help to unload the lorry, meaning that you can put your feet up.

We offer this service on all items that are delivered, we do not offer this on our couriered products. Prices for this service can be found on individual products.

Should you require further information on our standard or assisted delivery services, please contact a member of our Sales Team.

Scottish areas may be subjected to slightly longer delivery turnarounds, please contact us for details.

Titania Garden Office W4.3m x D3.3m

This image shows a brief reference to how your products will arrive. All of our garden buildings are made from kiln dried quality graded timber; if it is to be stored prior to construction and treatment all parts must be covered to prevent moisture from warping the timber.

Price Match Promise
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