Often families find themselves running out of space in their homes and many will look at moving to a larger house. The average price of a dwelling in England is now £292,000 and rising. Using figures collated from several sources there are also considerable additional hidden costs (these are average figures based on April 2022 reports and are a guide only).

Stamp Duty 4,600

Conveyancing Existing Home 1,000

Conveyancing New Home 1,000

New Home Survey Fee 500

New Home Valuation Fee 227

EPC Old Home 80

Estate Agent Fees Old Home 2,765

Removal Costs 1,200

TOTAL £11,372

Another option is building a conservatory. Searching the Internet, a small structure will cost over £5000, while an average size conservatory will cost in the region of £12,000. One drawback of this option is that conservatories can suffer from being too hot in the Summer and too cold in the Winter.

The most expensive option is to have an extension built. Again, a search of a number of construction companies gives the average cost of a normal 15 square metre extension at £30,000.

Garden buildings are the popular choice when it comes to extending your living space. If you need some extra space in your home, Dunster House Addroom® Garden Rooms are the perfect cost effective solution to expand your living area and enhance your property. They are much quicker and easier to install, and a lot cheaper than having a traditional brick extension, conservatory or loft conversion built. The Addroom® Garden Room is designed to help your home improvement projects run smoothly. Supplied in ready-made sandwich panels, DIY assembly of your garden room is made simple for any competent DIYer.

The current price of a 15 square metre Addroom® is £10,749, a considerable saving on the previous 3 options. Especially when you start to factor in additional material and labour costs.

The Addroom® Garden Room designs come with the option of grooved walls or a stylish brick effect exterior. The traditional natural toned brick effect will blend in beautifully with your home, and stand out against the backdrop of your garden. The roof is finished with an attractive tile effect. The external walls of the Addroom® Garden Rooms are made from a durable and water resistant wood polymer composite (WPC) that is long lasting and easy to maintain.

The large uPVC windows and doors let in plenty of natural light and fresh air, and the wide opening French doors allow easy access. Made to a high quality specification, they feature industry leading multi-point locking systems for high security, ensuring all your treasured items stay safely locked away.

The 28mm double glazed windows and doors, and fully insulated walls, floor and roof provide good thermal efficiency to help maintain the temperature inside your garden room. This ensures you can maximise the use of your garden room all year round, whatever the weather outside. The walls and floors are supplied as sandwich panels with a polyisocyanurate core. This insulation has low conductivity, giving it great insulating properties that are far superior to alternative materials such as polystyrene or rockwool which can be used in some cheaper garden room products. A well insulated garden room will be eco-friendly and beneficial to the environment in helping you to reduce your carbon footprint.

The Addroom® can be built on to consolidated groundwork, such as concrete or sufficiently consolidated ground. The whole garden room building sits on pressure treated floor bearers, to help give it a solid base. Pressure treatment instead of the cheaper and less effective dip treatment method forces wood preservative deep into the timber to ensure it is fully protected. This is why Dunster House can offer a genuine 10 year guarantee on pressure treated timbers against rot and insect infestation. The bearers are the part of the construction in contact with the cold damp ground so it is important they are protected, otherwise they could quickly deteriorate and put your garden room at risk.

Key Features:

• Insulated 140mm walls, 65mm roofing, 40mm floor
• Walk through height of 1.84m for a fully usable room
• 28mm double glazed uPVC windows and doors
• Low maintenance and durable WPC (Wood Polymer Composite) walls
• Cost effective extension and conservatory alternative
• 10 year guarantee on pressure treated floor bearers
• Secure, industry leading 12 –point door locking system
• Easy build DIY panel system for quicker install

Keeping Warm

There are several options available when looking at how to keep your Addroom® Garden Room warm. Firstly, if you are only planning to use your Addroom® occasionally, Dunster House recommend putting a small electric heater in the room. Usually, you would turn that on 20 minutes before you are going to use it, to kill off the chill. However, if you are planning to use your Addroom® all year round for either business purposes or a play area etc, you may want to consider the option of an isolated central heating system. Remember, Addrooms® are highly insulated for year-round use.

Do I need Foundations?

No! Addroom® can be placed on a sufficiently consolidated sub-base, such as patio tiles, for the floor bearers to sit on. There’s no need to excavate large footings which can be expensive.

Double Glazed

Addroom® Garden Rooms have 28mm double glazing in all of the windows and doors. These double glazed sealed units are made using 4mm panes of glass with a 20mm aluminium spacer bar in between to absorb any moisture. This is designed to prevent condensation within the unit, and has been independently tested to ensure this. These sealed units also comply to BS EN 1279 standards, which cover requirements for thermal and sound insulation.

Fire Resistance

The inner walls of Addroom® garden rooms are made using a fire-resistant fibreboard for increased protection. This is a hard-wearing material made from recycled paper fibres and Gypsum (Hydrous Calcium Sulphate). The fibreboard is supplied unpainted so you can design and decorate the interior of your garden room to your own individual style. This material is a good surface for paint and is easy to wallpaper.

Planning Permission

All Addroom® Garden Rooms are under 3m high. Why does this matter? Under UK permitted development rights, extensions under 3m can typically be constructed without planning permission*.

*Please be advised that some exclusions may apply depending on property age, where it is situated etc.  If in doubt, please check with your local planning authority.