Cathedral Victorian Greenhouse by Janssens

The Cathedral Victorian is a commodity greenhouse everywhere you can buy it — the difference is who you buy it from. This exact model is sold by a dozen resellers online, all at similar prices. What you get from World of Greenhouses that you won't get from a generic listing: real price matching (we'll try our best to beat any legitimate competitor price), financing so you can spread out a purchase this size, free shipping, and a phone that's answered by someone who actually knows this greenhouse — not a call center reading from a script.

Call or text 732-806-7959 to customize the accessories and options for your space — additional doors, shelving, vents, heating, and shade curtains are just a few of the options we can add for you.

A true backyard showstopper — 298 sq. ft. with a cupola roof design. Designed and manufactured in Belgium by Janssens, distinguished by a cupola that adds both height and curb appeal. Its 4mm tempered glass and 17-gauge tubular aluminum frame (with heavy-duty portal frame supports spanning the full width) are built to last, and doors and windows can be positioned to fit your layout.

Frequently Asked Questions

Why does it have a cupola? The raised cupola roof isn't just decorative — it adds extra headroom at the peak and a distinctive silhouette that sets the Cathedral apart from the standard rectangular Victorian roofline.

Can I use it as living space, not just for plants? It's glazed and built as a growing space first — a single layer of glass heats up fast in sun and cools quickly at night. Some owners furnish a section as a seating area, but it's not insulated like a room addition.

Do I need a permit? Often, since this is a large permanent structure on a foundation — check with your local building department before you order.

How long does assembly take? Given the size, most owners budget several days with at least two people, or ask us about installer referrals.

Talk to a Greenhouse Specialist: We're a greenhouse specialist, not a general retailer — call or text us at 732-806-7959 and you'll talk to someone who actually knows this product inside and out. We'll help you plan the accessories and options that make sense for your space, and get you a straightforward price.