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About our summerhouses
A summerhouse sits between a shed and a garden room. Unlike a shed, it is glazed and designed for spending time in. Unlike a garden room, it does not need full insulation or electrics. Our collection uses tongue and groove cladding on every model as standard. That means interlocking timber panels that create a weathertight, draft-free space. We do not sell overlap or shiplap summerhouses because the construction is not good enough for a building you are going to sit in.
Every summerhouse comes with pressure treated timber, toughened safety glass in the doors and windows, and free UK mainland delivery. Sizes range from a compact 4x4 up to a large 20x8. Most orders dispatch within 10 working days.
If you need a building for daily year-round use, our insulated summerhouses and garden rooms offer full insulation. For storage rather than relaxation, browse our wooden sheds range.
Why we chose this range
"We strictly avoid overlap or feather-edge construction for our summerhouses. While overlap is fine for a tool shed, it warps and lets in drafts, which ruins a relaxation space. We stock the Power range because they use interlocking tongue and groove timber on every panel. That creates a sealed, flat wall profile that keeps the wind out and looks like a proper room, not a garden shed with windows."
- Matt W, Greenhouse Stores
Summerhouse styles we offer
Apex Summerhouses
Traditional peaked roof with maximum headroom at the centre. The most popular style. Available from 4x4 to 20x8. Tongue and groove construction with toughened glass double doors. Prices from £724.
Pent Summerhouses
Single-slope roof with a clean, modern profile. Sits neatly against fences and walls. Same tongue and groove construction as the apex range. Available from 4x4 to 20x8. Prices from £724.
Corner Summerhouses
Designed to fit into the corner of your garden. Makes use of space that is often wasted. The angled front creates a sheltered seating area facing the garden. Prices from £1,069.
Summerhouse combi (with side shed)
A summerhouse with an attached storage section. The main room is glazed for relaxation. The side shed has a separate door for tools, cushions and garden furniture. One building, two uses. Prices from £1,884.
Modern Summerhouses
Contemporary flat-roof and pent designs with large glazed panels and clean lines. For customers who want something that complements a modern garden. Tongue and groove construction throughout.
Insulated Summerhouses
Full insulation for year-round use as a home office, gym or studio. The Calmpod range features 50mm wall insulation, double glazing and composite cladding. Prices from £9,799.
Summerhouse prices by size
| Size | Apex | Pent | Best For |
|---|---|---|---|
| 4x4 | £724 | £724 | Small garden reading nook, single chair |
| 6x4 | £809 | £809 | Two chairs, compact retreat |
| 6x6 | £984 | £984 | Small sofa, coffee table, hobby space |
| 8x6 | £1,054 | £1,054 | Most popular. Sofa, chairs and a table. |
| 8x8 | £1,354 | £1,354 | Entertaining, dining, art studio |
| 10x6 | £1,229 | £1,229 | Home office, gym, craft room |
| 10x8 | £1,524 | £1,524 | Large entertaining space, yoga studio |
| 12x8 | £1,704 | £1,704 | Garden parties, large home office |
| 20x8 | £2,659 | £2,659 | The largest. Events, classes, studio space. |
Matt's Installation Tip: The Winter Swell
Wood is a natural material. It absorbs moisture in winter (swelling) and dries in summer (shrinking). It is completely normal for summerhouse doors to stick slightly in a wet January. Do not plane the doors immediately. Wait for a dry spell in spring and the door will usually free up on its own. If it persists beyond April, take 2-3mm off the sticking edge with a hand plane.
Do I Need Planning Permission for a Summerhouse?
Most summerhouses fall under permitted development and do not need planning permission. The building must be single storey, under 2.5m at the eaves if within 2m of a boundary, and must not cover more than 50% of your garden. It cannot be forward of the principal elevation of your house. If you are in a conservation area, national park or AONB, check with your local planning authority first.
Frequently asked questions about summerhouses
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How much does a summerhouse cost?
Our summerhouses start from £724 for a 4x4 model. A popular 8x6 apex summerhouse costs £1,054. Larger 12x8 models start from £1,704. Insulated summerhouses for year-round use start from £9,799. All prices include free UK mainland delivery.
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How long does a summerhouse last?
A quality tongue and groove summerhouse lasts 20-30 years. Pressure treated timber resists rot for 15+ years without maintenance. Apply a UV-protective wood preservative every 3-4 years to prevent greying and keep the timber looking fresh.
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Do I need a base for a summerhouse?
Yes. A solid, level base is essential. Paving slabs or a concrete pad are the best options. The base should be raised 50-100mm above ground level for drainage and airflow under the floor. Never place a summerhouse directly on grass or soil. The base should extend 50mm beyond the building footprint on all sides.
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What is the difference between a summerhouse and a garden room?
A garden room is fully insulated for year-round use. A summerhouse is not. Summerhouses use single-skin tongue and groove timber with single or toughened glazing. Garden rooms have insulated walls, floors and roofs with double glazing. Summerhouses cost 40-60% less than garden rooms. For three-season use (spring through autumn), a summerhouse is ideal. For daily use as a home office, choose an insulated model.
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Do I need planning permission for a summerhouse?
Most summerhouses do not need planning permission under permitted development. The building must be single storey, under 2.5m at the eaves if within 2m of a boundary, and must not cover more than 50% of your garden. Check with your local planning authority if you are in a conservation area, national park or AONB.
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Can I use a summerhouse in winter?
Standard summerhouses are comfortable from March to October. The tongue and groove construction keeps drafts out but there is no insulation. A portable electric heater extends the season into November. For genuine year-round use, choose our insulated summerhouses which have 50mm wall insulation and double glazing.
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How long does delivery take?
Most summerhouses dispatch within 10 working days. Delivery is free to all UK mainland addresses. The building arrives on a pallet via a dedicated delivery vehicle. You will receive a delivery date confirmation by email after ordering.