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Arcadia

The lean-to greenhouse that smartly extends your home

Ready to seamlessly extend your home into the garden? The Arcadia is Janssens’ lean-to model: a greenhouse that attaches to or mounts on the wall of your home, becoming a true extension of your living space. Just as practical for those who want fresh produce close at hand as it is thoughtful for those looking to intelligently expand their home.

This greenhouse has one outstanding asset: it leans against your home and becomes part of your daily routine. The variable roof pitch and compact footprint allow the Arcadia to fit perfectly against any wall, as a sunny conservatory, a growing space against the kitchen wall or a quiet reading nook with a view of the garden.

Endless combinations

Our Arcadia lean-to greenhouse is fully modular and customisable

Every Arcadia is unique, because you tailor it to your home. You choose the depth that suits your terrace, from 82 cm to 305 cm in the Arcadia Plus, and the length up to a full 12 metres. The RAL colour is entirely your choice, so the Arcadia harmonises with your wall, windows and surroundings. For the mounting style, the Arcadia can be fixed against the wall or on top of a dwarf wall against the façade, optionally with a highline for extra head height. The glazing is in toughened safety glass or polycarbonate, and you decide on the position and number of sliding or hinged doors, side windows/top-hung windows, roof windows and ventilation elements.

The Arcadia adapts effortlessly to your home, façade and way of living.
Explore the different options below and create a greenhouse that is perfectly yours.

Lean-to

The Arcadia can be placed directly against your home, forming a seamless extension of your living space. Perfect for adding extra light, space and comfort to your house.

Wall-mounted

The Arcadia can be mounted on a dwarf wall of 20, 40 or 60 cm, giving the greenhouse an even more exclusive appearance, ideal when used as a garden room.

Drawing on 80 years of expertise and experience in professional greenhouse construction, Janssens has developed its own proprietary profile system, the foundation of our current range of garden greenhouses.

Five core principles guide everything we do: craftsmanship, the best price-to-quality ratio, durable and low-maintenance materials, modular construction and a product that is hassle-free for life.

Key features:

  • Premium construction: proven design with full certification
  • Paint finish: powder coating to Qualicoat standard
  • Closed hollow aluminium profiles, slender yet generously dimensioned for outstanding stability
  • Aluminium base profile always included, neatly mitred for a cleaner, more elegant finish
    • Optional: low threshold at the doors
  • Rubber glazing strips with anti-stretch cord to prevent expansion and contraction
  • Spacious gutters with integrated condensation channel
  • Aluminium rainwater downpipes in dia. 40
  • Sliding doors with or without low threshold
  • ESG Safety glass: 4 mm clear thermally toughened float glass
  • All fixings in stainless steel

Fully adaptable to your space: choose the ideal length, width, and height yourself. With flexible glass layouts and various placement options, this greenhouse fits your home perfectly.

Arcadia dimensions

  • A length: 82 cm or 157 cm
  • B width: from 162 cm to 1,200 cm
  • H1 gutter height: 181 cm or 201 cm
  • H2 ridge height: 222 cm or 242 cm (depending on gutter height)
  • M: 20, 40, or 60 cm

Arcadia Plus dimensions

  • A length: from 82 cm to 305 cm
  • B width: from 236 cm to 1,200 cm
  • H1 gutter height: 181 or 204 cm
  • H2 ridge height: from 212 to 381 cm (depending on gutter height and chosen roof pitch)
  • M wall height: 20, 40, or 60 cm

Optional

  • window distribution in narrow sections
  • connection possible against a wall (gable end)

Personalize your greenhouse down to the smallest details. From frame colors to glass types and decorative finishes: configure a version that perfectly matches your style and requirements.

Frame

  • Standard RAL colors: RAL 6009m (dark green), RAL 9005m (black), RAL 9010m (white)
  • Optional: other RAL colors available

Glazing beads

  • Black (RAL 9005m) or white (RAL 9010m)

Glass type

  • 4 mm toughened safety glass
  • 10 mm polycarbonate
  • Combination possible: polycarbonate roof & glass side walls

Decoration

  • Flat aluminum panel 3 mm

Add-ons

  • Sliding doors with lock: both single and double sliding doors available.
    • Option: pleated fly screen door, low threshold
  • High-quality hinged doors with cylinder lock, available in single or double configuration.
    • Option: door pump, door hook
  • Roof windows for roof window.
    • Option: fly screen, automatic opener
  • Side windows/top-hung windows for wall ventilation.
    • Option: fly screen, automatic opener
  • Side windows with slats for maximum ventilation.
    • Option: fly screen

Accessories
Janssens offers a wide range of optional accessories: from seedtrays, tablers and shelves to hanging systems.

Why choose a lean-to greenhouse?

An Arcadia against your home offers something unique: you step into your greenhouse without pulling on wellies, harvest your herbs between cooking sessions and enjoy a light-filled extension of your living space all year round. At the same time, you make the most of that south- or west-facing wall, a greenhouse that passes warmth and light deep into your home.

Want to go even bigger?

The Arcadia Plus is the ultimate lean-to greenhouse for those who really want to think big. With a depth of up to 305 cm and a length of up to 1,200 cm, this robust structure offers space for everything: a cosy dining area, a comfortable lounge, a yoga space, a home office or a full growing garden. Because the Arcadia Plus has extra heavy tube profiles and absorbs the radiant heat of your home, it is comfortable all year round.

What makes a Janssens unique

A Janssens can be recognized by three things: the choice of materials that last for decades, a range that adapts to every garden instead of the other way around, and a level of finish that convinces even the most demanding gardener. These three pillars form the foundation of every model.

Durability

Materials and design focused on weather resistance, ease of maintenance, and timeless design. You buy a Janssens once.

Wide range & custom-made

From 'action models' (ready-made standard models) to fully customizable greenhouses, with a choice of dimensions, doors, windows, glazing, and finishes.

Top-quality materials

Maintenance-free aluminium, safety glass, durable rubber seals, and stainless steel fasteners. Every component is chosen for the long term.

Need more possibilities?

Discover all our Custom Models

Custom Models, the range of fully customizable greenhouses by Janssens. Each model has its own character: from the spacious Helios to the massive Gigant and the minimalist Modern.

Choose the model that suits your garden, style, and ambition.

Eos

The timeless Janssens classic

  • freestanding
  • lean-to
  • on dwarf wall
  • steep british roof
  • T-shape

The space champion. Generous interior for those who garden and live on a grand scale.

  • freestanding
  • lean-to
  • on dwarf wall
  • T-shape
  • traditional continental roof

The crown jewel. A T-shaped greenhouse with the allure of a garden pavilion.

  • freestanding
  • lean-to
  • steep british roof
  • T-shape

Sleek, contemporary, light-filled. The greenhouse for those who love straight lines.

  • freestanding
  • mono-pitch roof

For those who dare to think big. Up to 6 metres wide, up to 18 metres long.

  • freestanding
  • lean-to
  • on dwarf wall
  • traditional continental roof

A cathedral for your garden. Pure peace, serenity, and a sea of space.

  • freestanding
  • lean-to
  • on dwarf wall
  • traditional continental roof
You buy a greenhouse,

we plant a tree ...

Every greenhouse we make helps not only your garden grow, but the world too. For every greenhouse sold, we plant a tree together with Go Forest in Peru or the Congo.

This way, we contribute to global reforestation and a better future for our planet.

Find your local Janssens dealer

Find your local Janssens dealer

Janssens sells exclusively through authorised dealers. Our international network provides personalised advice, local expertise and professional installation guidance, across Europe, Scandinavia and the United States.