Fully Installed Palmako Anna L Spacious Timber Garden House | 3-Room Guest House | Annexe | Holiday Retreat | 26.8m² | 70mm | 8x5m

Fully Installed Palmako Anna L Spacious Timber Garden House | 3-Room Guest House | Annexe | Holiday Retreat — Professionally Installed Across Mainland UK

The Palmako Anna L is a substantial, three-room timber garden house with 26.8m² of internal floor space, an 8m x 5m footprint, 70mm solid Nordic spruce walls with double-notch joints, three large 129cm x 157cm double windows, two double doors, and a terrace with impregnated decking. This is a building with genuine scale, genuine character, and a specification that sets it apart from the standard garden cabin market.

Whether you are looking for a premium guest house, a garden annexe, a family holiday retreat, or a versatile three-room building that can serve as a living space, workspace, and private room simultaneously, the Anna L delivers on every level.

The price shown includes the full supply and professional installation of your Palmako Anna L anywhere on Mainland UK, including foundation preparation and installation, full structural assembly including the terrace, lead valleys and roof shingles fitted as standard, and timber treatment with Smart Seal applied to all external timber. There are no hidden costs, no separate groundworks quotes, and no surprises. What you see is what you pay.

Roof upgrade to Britmet composite slate tiles available for an additional £4,000 (lead valleys included). Please contact us when ordering to arrange.

Key Features

• Three-room layout — 26.8m² across three separate rooms in an 8m x 5m footprint
• Three 129cm x 157cm panoramic double windows — toughened 3-9-3 double glazing
• Two double doors — 125cm x 196cm with toughened 4-9-4 double glazing
• Terrace with impregnated decking
• 257cm wall height, 332cm overall height, 25.3° apex roof with 52cm side overhangs
• 70mm solid Nordic spruce log walls with double-notch joints
• Lead valleys — included as standard — fitted to all roof junctions as part of the installation
• Roof shingles — fitted as standard. We will never install standard shed felt on any building we are responsible for.
• Britmet composite slate upgrade available — +£4,000 (lead valleys included)
• Foundation preparation and installation — included. No separate groundworks quote.
• Composite DPC strip, ground membrane, and anti-insect and rodent mesh — included as standard — we fit a composite damp-proof strip along the base of the foundation beneath all pressure-treated timber, lay a ground membrane beneath the building, and install anti-insect and rodent mesh as standard on every installation. These measures are not optional extras — they are part of how we build, because we want every building we install to last as long as possible.
• Timber treatment with Smart Seal — included as standard — up to 10 years of protection
• Laminated timber door frames, 3D adjustable hinges, cylinder locks, and storm anchoring — all fitted as standard

Product Specifications

What Is Included in the Price?

• Supply and delivery of your Palmako Anna L
• Foundation preparation and installation — included. Ground screws, concrete slab, or composite pads — assessed and installed as part of the price. No separate groundworks quote.
• Composite DPC strip — included as standard. Fitted beneath all pressure-treated timber at foundation level.
• Ground membrane — included as standard. Laid beneath the building on every installation.
• Anti-insect and rodent mesh — included as standard. Installed on every build — a detail most installers do not include.
• Full structural assembly including all three rooms and the terrace
• Installation of all windows, double doors, single door, and security hardware
• Lead valleys — fitted as standard. All roof junctions finished with lead valleys as part of the installation.
• Roof shingles — fitted as standard. We will never install standard shed felt on any building we are responsible for.
• Timber treatment with Smart Seal — included as standard. Up to 10 years of protection.
• 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.

Roofing Upgrade — Britmet Composite Slate (+£4,000)

Your Anna L comes with premium shingle roofing and lead valleys included. For those who want the very best, we offer an upgrade to Britmet composite slate tiles for an additional £4,000, with lead valleys included. Please contact us when placing your order to arrange the upgrade.

Bespoke Options

Electrical lighting, heating, plumbing, insulation upgrades — we can accommodate all of these as part of the installation. Contact us to discuss your requirements before placing your order.

Interested? Let’s Talk.

Every project is different. Contact us today and we will get back to you promptly.

Frequently Asked Questions

Do I need planning permission for the Palmako Anna L?

At 8.2m x 5.2m and 332cm overall height, the Anna L is a substantial building and we strongly recommend confirming with your local planning authority before ordering. For most residential properties in England and Wales, it will fall within Permitted Development rights provided it is used as an ancillary garden building, is sited within the curtilage of a dwelling house, is not forward of the principal elevation, and does not cover more than 50% of the garden area. Listed buildings, conservation areas, and National Parks have different rules. We can provide a site plan and specification document to support any planning enquiry.

Does the price include everything — foundations, building, roofing, and timber treatment?

Yes, completely. Foundation preparation and installation, full structural assembly including the terrace, lead valleys, roof shingles, and Smart Seal timber treatment are all included. The only optional extra is the Britmet composite slate roof upgrade at +£4,000 (lead valleys included). No hidden costs, no separate groundworks quotes.

What type of foundation does the Anna L need?

We assess each site individually and install the most appropriate foundation as part of the price. For most residential gardens, this will be ground screws or composite pads. Where ground conditions require it, we can install a concrete slab. We will advise you on the best option during the pre-installation survey.

What extra protection do you install at foundation level?

On every installation, we fit a composite damp-proof strip along the base of the foundation beneath all pressure-treated timber. We lay a ground membrane beneath the entire building to manage moisture and suppress weed growth. And we install anti-insect and rodent mesh to prevent ingress beneath the floor — a detail that most garden building installers simply do not include. We do everything we possibly can to make every structure we install last as long as possible.

What are lead valleys and why are they included?

Lead valleys are the strips of lead flashing fitted at the junctions where two roof planes meet. They channel rainwater away from the joint cleanly and permanently, preventing water ingress at the most vulnerable points of the roof. We include lead valleys as standard on the Anna L because the roof geometry requires them and because they are the correct way to finish a roof of this type. Most garden building installers do not include them.

What roofing is fitted as standard on the Anna L?

We fit lead valleys and a premium shingle finish to the apex roof as part of the installation price. We will never install standard shed felt on any building we are responsible for. For those who want the very best finish, we offer an upgrade to Britmet composite slate tiles for an additional £4,000 (lead valleys included).

How long does installation take?

The Anna L is typically installed in three to five days, depending on site conditions and foundation type. We will confirm the installation schedule with you in advance.

What is Smart Seal and how long does it last?

Smart Seal is a clear, penetrating timber sealant applied to all external timber as part of the installation. It provides up to 10 years of protection. After 10 years, a single re-application coat is all that is needed.

Can the Anna L be used as a permanent guest house or annexe?

The Anna L is one of the most capable garden buildings we install for guest house and annexe use. For permanent residential occupation, planning permission would typically be required and the building would need to meet Building Regulations for habitable use. Please contact us to discuss your specific requirements.

Can I add electricity, heating, or plumbing?

Yes. Please contact us before placing your order to discuss your requirements.

How long does delivery take after ordering?

Typically 6 to 12 weeks from order confirmation. Please contact us if you have a specific deadline.

Do you install across the whole of the UK?

We install across Mainland UK. Island locations and certain remote areas of Scotland may be subject to additional logistics costs — please contact us before ordering.