Start your own gardening journey with our Small and MiniGreenhouses. Starting from just 3x6 feet, these greenhouses are perfect for those with small gardens or who just want to grow a small number of plants in a protected environment.
With over 25 years in the garden buildings market, our self-manufactured greenhouses are the perfect planting solution for any garden.
Our guide to greenhouses is a great place to start if you want to compare options before buying.
A small walk‑in greenhouse gives you a sheltered space to tend seedlings and crops without the cost and commitment of a full‑sized structure. Our compact designs are easy to assemble and can sit neatly against a wall, lean‑to style, or tuck into a garden corner where a corner greenhouse might otherwise go. Each model is manufactured in the UK to our high standards, with optional shelving and vents for improved airflow.
Get a greenhouse that fits you from our selection below.
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As long as the total footprint of your outbuildings doesn\u2019t exceed 50\u202F% of your original garden area, you generally won\u2019t need planning permission.\u003C/p\u003E\r\n\r\n\u003Ch2\u003EWhat materials are our small greenhouses made from?\u003C/h2\u003E\r\n\u003Cp\u003EWe have a selection of mini \u003Ca href=\u0022https://www.gardenbuildingsdirect.co.uk/wooden-greenhouses\u0022\u003Ewooden greenhouses\u003C/a\u003E with durable frames guaranteed for 10 years. Wood is superior for insulation and decoration potential, although some maintenance is required. 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FAQs
Our greenhouses start from only 3x6 feet in size, which is 18 square feet. This will fit even tiny gardens.
Legally, the only requirement for most gardens in the UK is that outdoor buildings must not take up more than50% of the original garden space. There are some other restrictions on positioning and protected land, though. Check out our guide to greenhouse planning permission for full details.
Our smallest structures start at 3?×?6?ft, giving 18?sq?ft of growing space. When placing any outbuilding, UK planning rules state that total outbuildings should not cover more than 50?% of the original garden.
Most small greenhouses come without a floor so water can drain away easily; they can be placed directly on a solid, level surface such as paving slabs or compacted gravel, as long as there is good drainage.
Why Choose a Small Greenhouse?
A small greenhouse is ideal when outdoor space is at a premium or you simply want to start modestly. These mini units offer the same protective environment as full‑sized glasshouses but require less space, cost and maintenance. Many gardeners prefer them for patios, balconies or a cosy corner greenhouse setup, where the structure shelters plants from wind and frost yet still allows access. As long as the total footprint of your outbuildings doesn’t exceed 50 % of your original garden area, you generally won’t need planning permission.
What materials are our small greenhouses made from?
We have a selection of mini wooden greenhouses with durable frames guaranteed for 10 years. Wood is superior for insulation and decoration potential, although some maintenance is required. For windows, all our greenhouses use safe and cost-effective plastic polycarbonate glazing.
Although stocks vary, we also have a selection of metal greenhouses available in small sizes for you to choose from.
What can you grow in a small greenhouse?
Despite their compact size, these structures can host a surprising variety of plants. Dwarf vegetables such as tomatoes, peppers, eggplants and lettuce thrive in pots inside a small greenhouse.
For colour, try African violets, streptocarpus, begonias or kalanchoe—all flowering plants that don’t take up much space.
Many bulbs (amaryllis, paperwhites) and climbing vines like mandevilla or morning glory will grow happily on a trellis.
Orchids are also an option: cold-tolerant Cymbidium orchids cope with near-freezing temperatures, while Phalaenopsis and Dendrobium varieties prefer warmer conditions and can be brought indoors in winter.
Does a small greenhouse need a base or foundation?
Most greenhouses come without a floor, so that water can escape easily when plants have been watered. All of our small models can be placed directly on a solid, level surface with adequate drainage, although you can give it a raised base if you wish to.
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