Fully Installed Palmako Cecilia XXXL Modern Garden Studio | Annexe | Guest House | Home Office | 39.9m² | 70mm | 6.7x6.7m

Fully Installed Palmako Cecilia XXXL Modern Garden Studio | Annexe | Guest House | Home Office — Professionally Installed Across Mainland UK

The Palmako Cecilia XXXL is in a class of its own. A 39.9m² contemporary garden studio built from 70mm solid Nordic spruce, fitted throughout with aluminium-framed double-glazed doors and windows with 24mm toughened glass and tilt-and-turn ventilation — this is a building that brings the quality and specification of a modern extension to your garden, at a fraction of the cost and complexity.

With its striking 6.7m x 6.7m square footprint, sleek flat pent roof with a dramatic 102cm front overhang, and multi-room layout that can be configured as a guest house, granny annexe, home office, or premium garden studio, the Cecilia XXXL is designed for customers who want something genuinely exceptional — not just a large cabin, but a building that makes a statement.

The price shown includes the full supply and professional installation of your Palmako Cecilia XXXL anywhere on Mainland UK, including EPDM rubber roofing and timber treatment with Smart Seal applied to all external timber as part of the installation. There are no hidden costs, no separate groundworks quotes, and no surprises. What you see is what you pay.

If you are looking for a different size or specification, please contact us to discuss the full Palmako range or a bespoke solution tailored to your exact requirements.

Contemporary Design, Permanent Building Quality

The Cecilia XXXL was designed for a different kind of customer — one who wants the warmth and character of timber construction combined with the clean lines, high-performance glazing, and modern aesthetic of a contemporary garden building. The aluminium-framed sliding doors, single door, and tilt-and-turn windows are not an afterthought; they are central to what makes this building feel different from every other log cabin on the market.

The 24mm toughened double glazing (4-16-4 specification) provides outstanding thermal performance and sound insulation. The tilt-and-turn window function allows precise ventilation control without compromising security. The aluminium frames are maintenance-free, weather-resistant, and give the Cecilia XXXL a crisp, architectural finish that complements contemporary properties beautifully.

The 70mm Nordic spruce walls provide exceptional thermal mass and structural robustness — the same specification as our premium Sandra range — whilst the 28mm tongue-and-groove floor boards and 19mm roof boards ensure the building is solid and well-specified throughout. The flat pent roof at just 3° pitch is finished with EPDM rubber roofing as part of the installation price, providing a professional-grade, long-lasting waterproof membrane that is the only appropriate finish for a roof of this specification.

Every component is precision-engineered in Estonia from slow-growing Nordic spruce, and our experienced installation team handles the entire process from foundation preparation through to the final fixing, leaving you with a finished building that is ready to use from day one.

Key Features

• 39.9m² floor area — 6.74m x 6.74m external footprint providing a genuinely substantial interior across a multi-room layout — large enough for a living area, two bedrooms, and a utility or washroom
• Aluminium-framed double-glazed windows and doors throughout — 24mm toughened double glazing (4-16-4 specification) in maintenance-free aluminium frames, providing outstanding thermal performance, sound insulation, and a contemporary aesthetic
• Tilt-and-turn window function — precise ventilation control and easy cleaning without compromising security
• Aluminium sliding doors — a wide 272cm x 205cm sliding door providing a dramatic, light-filled connection between the interior and the garden
• 240cm wall height — full, generous standing height throughout, with a 297cm overall height giving the building a commanding contemporary presence
• 70mm solid Nordic spruce log walls — premium wall thickness providing exceptional thermal mass, superior insulation, and outstanding structural robustness
• Flat pent roof with 102cm front overhang — a 64.2m² roof at 3° pitch with a dramatic front overhang creating a sheltered outdoor zone beneath the eaves
• EPDM rubber roofing — included as standard — the flat pent roof requires a professional-grade waterproofing membrane. We install EPDM rubber roofing on every Cecilia XXXL as part of the price. We will never use standard shed felt on any building we are responsible for.
• 28mm tongue-and-groove floor boards — substantially thicker than standard cabin flooring, on 45 x 70mm treated foundation joists
• Louvre wall panel — providing natural ventilation and a distinctive architectural detail
• Timber treatment with Smart Seal — included as standard — all external timber sealed as part of the installation, providing up to 10 years of protection

Product Specifications

What Is Included in the Price?

The price shown covers the complete supply and professional installation of your Palmako Cecilia XXXL on Mainland UK. This includes:

• Supply and delivery of your Palmako Cecilia XXXL garden studio
• Foundation preparation and installation — we will recommend and install the most appropriate foundation for your site, whether that is ground screws, a concrete slab, or composite pads
• Full structural assembly to Palmako’s manufacturer specification, including all rooms and the louvre wall panel
• Installation of all aluminium-framed double-glazed windows, sliding doors, and single door
• EPDM rubber roofing — included as standard. The flat pent roof of the Cecilia XXXL requires a professional-grade waterproofing solution, and we install EPDM rubber roofing on every one as part of the price. We will never use standard shed felt on any building we are responsible for.
• Timber treatment with Smart Seal clear timber sealant — included as standard. All external timber is sealed with Smart Seal as part of the installation, providing up to 10 years of protection against weathering, moisture, and UV damage. No additional treatment is required after handover.
• Site clean-up and handover

Island locations and certain remote areas of Scotland may be subject to additional logistics costs — please contact us prior to ordering if you are unsure whether your location is covered.

Bespoke Options

If you would like to customise your Cecilia XXXL further — whether that is adding electrical lighting, heating, plumbing connections, insulation upgrades, or any other feature to enhance it as a guest house, annexe, or home office — we can accommodate this as part of the installation. Contact us to discuss your requirements before placing your order.

Interested? Let’s Talk.

Every project is different, and we are always happy to discuss your requirements before you commit. Whether you have questions about the Cecilia XXXL as a garden studio, annexe, guest house, or home office — or about foundation options, EPDM roofing, or installation timelines — our team is on hand to help. Contact us today and we will get back to you promptly.