My Cart
Send Enquiry

Granny Annexe PREMIUM (SIP Panels), 6.5x4.5 m (21'x15'), 30 m²

 Back to the top
£26,199.00
£28,815.00
Save -£2,616.00
Call to order
Blue phone icon
Open Open Today 08:00 AM
avp.common.alt_text.letter Send us your question
Granny Annexe PREMIUM (SIP Panels), 6.5x4.5 m (21'x15'), 30 m² visualization 1

* Photos and videos are for illustrative purposes only and may differ from the actual product. Products come untreated and natural.

Granny Annexe PREMIUM (SIP Panels), 6.5x4.5 m (21'x15'), 30 m²

Instant Delivery Available

Delivery in 2 - 3 weeks Last one in stock

AV1225

A cosy and stylish insulated PREMIUM garden room works as a great base for creating a lovely bureau, workshop, home gym or art studio. Due to large PVC windows and doors paired with the insulation of the SIPs panels, this garden room is not only exceptionally bright and modern but also provides extremely high thermal insulation properties.

Read more
Free delivery in 2-3 weeks (In Stock). Delivery time may vary depending on item availability, manufacturing, and logistics. Contact us for an estimate.
The price includes SIP (structural insulated panel) building kit (walls, external & internal cladding, roof, floor), external PVC doors & windows (anthracite), EPDM roof covering, hardware kit, delivery, offloading, VAT.
Seen a better deal elsewhere? Please let us know!
We'll try to beat it!

Select product option

BLACK FRIDAY DEAL

£26,199.00
Price After BLACK FRIDAY: £28,815.00
You save: -£2,616.00
Delivery price to: England (mainland)
United Kingdom
Other
£0.00
avp.common.alt_text.request_delivery_price
Delivery price for this location is estimated upon request.
Request delivery price
Call to order
Blue phone icon
Open Open Today 08:00 AM
avp.common.alt_text.site_visit Request site visit
avp.common.alt_text.phone Call me back
avp.common.alt_text.letter Send us your question

A cosy and stylish insulated PREMIUM garden room works as a great base for creating a lovely bureau, workshop, home gym or art studio. Due to large PVC windows and doors paired with the insulation of the SIPs panels, this garden room is not only exceptionally bright and modern but also provides extremely high thermal insulation properties.

Read more
Free delivery in 2-3 weeks (In Stock). Delivery time may vary depending on item availability, manufacturing, and logistics. Contact us for an estimate.
The price includes SIP (structural insulated panel) building kit (walls, external & internal cladding, roof, floor), external PVC doors & windows (anthracite), EPDM roof covering, hardware kit, delivery, offloading, VAT.
Seen a better deal elsewhere? Please let us know!
We'll try to beat it!
£26,199.00
AV1225

A cosy and stylish insulated PREMIUM garden room works as a great base for creating a lovely bureau, workshop, home gym or art studio. Due to large PVC windows and doors paired with the insulation of the SIPs panels, this garden room is not only exceptionally bright and modern but also provides extremely high thermal insulation properties.

Select product features according to your needs

Description

Model Highlights

• Large PVC windows and doors add a contemporary touch to the garden room design.
• A cosy bedroom enables you to comfortably rest when needed.
• A large living room with an open kitchen – for lounging, working, having meetings or simply enjoying your break.
• A dedicated bathroom space for your utmost comfort.
• Insulated walls, roof and floors ensure the optimal temperature in the garden room all year long.

If you have always dreamt of having your own space where you could work, lounge, create art or perform your fitness routine undisturbed, this might be the garden room for you. PREMIUM insulated garden room has dedicated areas and enough space for sleeping, cooking, working and practising various activities. Due to great thermal insulation, the garden room can be used throughout the whole year. Enjoy your undisturbed time and do what you love most in your new dedicated garden space.

Thermal Insulation

This SIPs (Structural Insulated Panel) house features reliable thermal insulation, ensuring your utmost comfort during summer or winter months. It features 124 mm walls (100 mm polystyrene boards in between two 12 mm panels), 174 mm roof (150 mm polystyrene boards in between two 12 mm panels) and 50 mm XPS insulation for the floors, providing warmth and cosiness during any month of the year.

Specifications
Granny Annexe PREMIUM (SIP Panels), 6.5x4.5 m (21'x15'), 30 m² specification 1
Granny Annexe PREMIUM (SIP Panels), 6.5x4.5 m (21'x15'), 30 m² specification 2
Granny Annexe PREMIUM (SIP Panels), 6.5x4.5 m (21'x15'), 30 m² specification 3
Granny Annexe PREMIUM (SIP Panels), 6.5x4.5 m (21'x15'), 30 m² specification 4
Granny Annexe PREMIUM (SIP Panels), 6.5x4.5 m (21'x15'), 30 m² specification 5
Floor area 29,25 m²
Material SIPs panels (Oriented Strand Board (OSB) and Neopor)
Roof Wood trim + 174mm SIPs panel
Roof Covering Material EPDM Roof Covering Material
External dimensions (WxD), Metric 650 x 450 cm
Living space 25,55 m²
Wall Wood trim + 124mm SIPs panel + Wood trim
Ridge Height 250 cm
Floor 50 mm insulation + Laminate
Doors 1* 195 x 195 cm; 2* 80 x 195 cm
Windows 1* 145 x 55 cm; 2* 95 x 195 cm; 2* 195 x 195 cm
Total Number of Rooms 3
Anti Rot Warranty 10 Year
Wood Treatment Optional
Features
Made while protecting the forests Made while protecting the forests
All our products are made of timber sourced from FSC certified forests only. So, in buying one of our products, you can be 100% confident no harm has been done to any of the world's forest.
The most popular in the UK! The most popular in the UK!
All our garden rooms are based on SIPS technology. Due its unbeatable value, more than 60% of new houses in the UK incorporate SIPS technology.
The best insulation you can find The best insulation you can find
SIPS technology ensures excellent thermal and sound insulation within our garden rooms due to the fact that SIPS buildings are well known for having the highest U-values on the market.
Harder than a rock Harder than a rock
SIPS technology-based buildings are up to 7 times more solid than their timber-framed counterparts. Therefore, we can guarantee that you will have an extremely robust construction.
Fast & Easy installation Fast & Easy installation
SIPS panels (from which all our garden rooms for sale are made) are lightweight (up to 60kg), therefore, they are easy to install on site and you don’t need a reinforced base.
Natural trim only Natural trim only
Our garden rooms come with natural conifer 10mm thick timber external and internal trim as standard. Alternative trim options are also available.
PVC windows and doors PVC windows and doors
All our garden rooms are equipped with German 70mm thick and 5-chamber profile WinkHaus PVC windows and doors as standard.
Allergy free materials only Allergy free materials only
We care about your wellbeing, therefore we make our garden rooms exclusively from certified allergy free materials. In addition, SIPS panels do not absorb humidity.
Fire protection Fire protection
All our garden room panels are treated with special hazardous material free preservative that makes it up to 7 times more fire resistant than any other natural timber.
Lifetime garden rooms Lifetime garden rooms
SIPS technology-based buildings are distinguished by their longevity. Thus, once it has been installed, it will basically serve you lifetime.
Firestone EPDM roofing Firestone EPDM roofing
All our garden rooms come with Firestone EPDM roofing as standard, which is renowned for its durability and longevity.
avp.common.alt_text.show_more Show all quality features
Attention

Contact us for any advice you may need regarding basic planning permission or building regulation matters. We will always be happy to help you.

Warranty and support

10-year manufacturer’s warranty on all our buildings. All our buildings are carefully designed and made by our highly-qualified and skilled professionals using only the finest materials. This enables us with great confidence to provide a 10-year warranty on all our buildings. For more information please read our Terms and Conditions.

We always strive to do our utmost to help you. If you need more information about a product, or advice on planning permission, scale drawings etc. or possibly you have come across a few unexpected problems while assembling your cabin. Whatever the matter may be, please always contact us – we will be happy to help.

Assembly
avp.common.installation Installation service
Our highly-qualified assembly partners will be happy to install any building from our range for you. You can either choose to pay the whole purchase price in one go or pay a 20% deposit, the balance for the installation service is due before delivery of the order.
Our Residential cabins are so easy to install!
Pdf
Assembly Instructions
Every single step of our product installation is clearly indicated in the assembly instructions.
avp.common.alt_text.measurements All parts are sequentially numbered.
All parts are preciselly marked for you easy to identify which part where belongs.
avp.common.alt_text.installation_support Get an installation support & advice.
Please call our customer support department for help and for any questions that you may have. Phone number 07418 351 697
See how easy the assembly process is.
Delivery and unloading
avp.common.alt_text.delivery Free delivery to most of mainland UK and Europe
Free delivery to most of mainland England, Wales, France and Germany. We also offer FREE delivery to most other European countries on all orders over £3,000.00. FREE delivery is also available to mainland Scotland on all orders over £3,000.00.
avp.common.alt_text.fast_delivery FAST delivery
Delivery takes 4-8 working days for England and Wales and 8-15 working days to mainland Scotland for all products in stock. For those products which we don't have in stock, delivery takes between 4-6 weeks. We will contact you to arrange a convenient delivery time.
avp.common.alt_text.hard_delivery Delivery to hardly accessible areas
Please inform us if delivery place is hard to access - we will organise a special transport solution.
avp.common.alt_text.delivery_unload Professional unloading and convenient storage
We will unload the product package in as convenient place for you as possible. All products are packed in sealed packages for storage in conditions of wet or changeable weather conditions.
Payment options
Secure your order with a 20% deposit payment and pay the balance upon delivery.
20% To place an order you can either choose to pay the whole purchase price in one go or pay a 20% deposit. The payment can be made by bank transfer or credit card via our website or over the phone. After the payment has been made you will receive a confirmation email. 80%

The balance can be paid by credit card or bank transfer before delivery takes place or by credit card upon delivery.

Visa Credit card
We accept MasterCard and Visa credit card payments over the phone and via our website. For such payments we employ an extremely secure SSL server, thanks to which your credit card data remains 100% safe.
Barclays Bank transfer
You can also make a payment via bank transfer. You will find our bank details in the last step when placing an order online or in the order email.
Our Customer Reviews on Trustpilot