Cost-Effective and Sustainable Granny Annexes Built with SIPs; Manufactured by Us, Installed by You.
Our one and two bedroom granny annexe kits have been designed to offer habitable space for family members, that’s as stylish on the inside as it is on the outside.
Our SIPs garden annexe kits are built using our pre-manufactured SIPs system; an innovative method of construction that delivers cost-effective, time-efficient and sustainable builds.
They’re ideal for homeowners who have sites where access is difficult, as the size and weight of panels having been carefully designed to make manual handling and assembly easy, even in areas where access is limited.
Utilising our pre-manufactured SIPs system, we supply structural and insulated flat pack annexe kits for a main contractor to install on site.
The pre-manufactured nature of SIP panels offers a significantly reduced site installation time in comparison to traditional construction methods such as masonry or timber framing.
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SIPs are very airtight in its construction and with less timber required than traditional timber frame construction, there is a vast reduction of cold bridges in the wall build up and less energy is needed to heat and cool rooms.
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Due to the stringent, tried and tested design and manufacturing process, materials work harmoniously together, delivering a highly predictable and reliable product whilst minimising construction waste and labour costs.
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The composite construction of SIP panels offers enhanced structural performance, strength and stability that does not degrade in comparison to traditional construction methods.
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SIPs construction is an incredibly strong, yet lightweight system. This minimises disruption on site, utilising low impact footings (where conditions permit), requiring less labour and allowing for easier handling.
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Our structural insulated panels are fabricated off-site to exacting standards, at our purpose-built manufacturing facility, using the highest quality closed cell EPS insulation and FSC certified and structurally graded orientated strand board.
Our garden annexe kits are delivered to the kerbside at your property and installed by your builder onsite to your desired specification.
Attention to detail, professionalism and customer service are at the heart of every project we deliver and we’re proud of our reputation for designing and manufacturing stunning annexe kits.
All of our annexe kits include the following specification, as standard:
• SIPs/Timber Floor (150mm Insulation)
• 18mm Caber Deck Flooring Sheets (Overboarding)
• SIP Panels for Walls (150mm Insulation)
• SIP Panels for Roof (150mm Insulation)
• Breather Membrane
• Cavity Batons
• Insect Mesh
• External Cladding (2 Sides British Cedar, 2 Sides Thermowood)*
• EPDM Rubber Roof Full Kit
• Guttering and Downpipes
• All SIP Joining Splines
• Stainless Steel Brad Nails
• UPVC Glazing Per Model**
• Vapour Barrier
• Metal Fascias
• Full Technical Drawings and Instructions for Installation
• Full Fixing Kit (Foam, Screws, Timber Locks, Glues)
*Alternative claddings are available
**Upgrades to windows and doors are available
| Size | Price | VAT 20% | Total Price |
|---|---|---|---|
| The Hanley One Bedroom Annexe Kit (7.5m x 5m) | £32,371.00 | £6,474.20 | £38,845.20 |
| The Ledbury One Bedroom Annexe Kit (8.5m x 5.5m) | £32,371.00 | £6,474.20 | £38,845.20 |
| The Malvern One Bedroom Annexe Kit (8.5m x 5m) | £31,543.00 | £6,308.60 | £37,851.60 |
| The Welland One Bedroom Annexe Kit (6.8m x 7m) | £31,543.00 | £6,308.60 | £37,851.60 |
| The Hanley Two Bedroom Annexe Kit (11m x 6.8m) | £38,228.00 | £7,645.60 | £45,873.20 |
| The Hanley Large Two Bedroom Annexe Kit (13m x 6.8m) | £44,128.00 | £8,825.60 | £52,953.60 |
| The Ledbury Two Bedroom Annexe Kit (11m x 6.8m) | £38,228.00 | £7,645.60 | £45,873.20 |
| The Ledbury Large Two Bedroom Annexe Kit (13m x 6.8m) | £44,128.00 | £8,825.60 | £52,953.60 |
| The Malvern Two Bedroom Annexe Kit (11m x 6.8m) | £38,828.00 | £7,765.60 | £46,593.60 |
| The Malvern Large Two Bedroom Annexe Kit (13m x 6.8m) | £44,728.00 | £8,945.60 | £53,673.60 |
| The Welland Two Bedroom Annexe Kit (6.8m x 10m) | £38,828.00 | £7,765.60 | £46,593.60 |
| The Welland Large Two Bedroom Annexe Kit (6.8m x 12m) | £44,728.00 | £8,945.60 | £53,673.60 |
If you would like to find out more, discuss a project you’re planning or request a quote, please call us on 01452 501455 or email us at [email protected], where we are on hand to discuss your plans for creating the additional space you’re looking for.
Alternatively, please complete the form to the right and we’ll be in touch.
If you would like to visit us, please call us on 01452 501455 to book an appointment.
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