12 x 8 ftApex roofWooden
Shire Barclay Corner Summerhouse With Side Shed 8x12
£1,229.00 £1,509.00
Free delivery
12 x 8 ft summerhouses
A 12x8 summerhouse covers about 8.9 m². Here are 10 ready-made options, from £1,229 to £2,715.
- Options
- 10
- Cheapest
- £1,229
- Free delivery
- 10 of 10
- Materials
- 10 wooden
10 summerhouses
12 x 8 ftApex roofWooden
Shire Hampton Corner Summerhouse With Side Shed 8x12
£1,369.00 £1,549.00
Free delivery
12 x 8 ftApex roofWooden
Mercia Premium Corner Summerhouse With Side Shed 8x12
£1,509.00 £1,599.99
Free delivery
12 x 8 ftApex roofWooden
Shire Lela Summerhouse 12x8 including Storage
£1,759.00 £1,894.00
Free delivery
12 x 8 ftApex roofWooden
Mercia Garden Room Combi Summerhouse 12x8
£1,814.99 £1,849.99
Free delivery
Separate living space from clutter
For a twelve by eight room, you can accommodate a proper seating area while a side store or corner design keeps garden items out of sight. The buildings are wooden with apex roofs, and selected models include those practical layout features. Decide which wall will hold furniture before setting the base, and check access through the garden. The footprint is under 15 m2 when nobody sleeps in it. Read the foundation advice first.
We earn a commission from the retailer if you buy through links on this page, at no extra cost to you. It never affects which summerhouses we show or how we compare them. Prices were checked on 7 November 2026 and may have changed, so check the retailer before you buy.
Build one yourself instead?
Ready-made 12 x 8 ft wooden summerhousefrom £1,229Delivered as panels, ready to assemble
Build a timber-framed summerhouse yourself£2,886Materials at today's merchant prices, inc VAT
Buying ready-made is about £1,657 cheaper than the materials to build it yourself. Factory-made buildings use lighter framing and thinner boards than a self-build, so building your own makes sense if you want it heavier-duty or a custom size.
The self-build figure uses our standard specification for this type of building, priced from a full materials list: framing, floor, cladding, roof, door and fixings. It excludes tools and your time.
Price a 12 x 8 ft summerhouse in the builderThe base you will need
A 12 x 8 ft summerhouse needs a firm, level base at least 12 x 8 ft. Most guarantees depend on it. A concrete slab or paving lasts longest. A plastic grid filled with gravel is quicker, drains well and needs no concrete.
EcoBase Fastfit Shed Base 4.0x2.5m (for 12x8ft)£239.99, free deliveryView at retailer →
Planning permission and Building Regulations
- Most garden buildings do not need planning permission in England and Wales if they are behind the front of the house and, with any other outbuildings, cover no more than half the garden.
- Within 2 m of a boundary the whole building, base included, must be no taller than 2.5 m. Further away, the limit is 4 m for an apex roof or 3 m for other roofs, and the eaves must stay under 2.5 m. Check the height on the product page before you order.
- At about 8.9 m², a summerhouse this size is exempt from Building Regulations as long as nobody sleeps in it.
- Sitting, reading or working in a summerhouse is incidental use. Sleeping in it, or using it as an annexe, needs planning permission and Building Regulations approval.
Check your exact building in the builder's planning check · Planning permission guide
12 x 8 ft summerhouses: common questions
How much does a 12x8 summerhouse cost?
Ready-made 12x8 summerhouses range from £1,229 to £2,715 today. Wooden ones start at £1,229. 10 include free delivery.
What base does a 12x8 summerhouse need?
A firm, level base at least 12 x 8 ft: a concrete slab, paving slabs on compacted sub-base, or a plastic grid filled with gravel. The EcoBase Fastfit Shed Base 4.0x2.5m (for 12x8ft) costs £239.99.
Do I need planning permission for a 12x8 summerhouse?
Usually not, if it is behind the front of the house and no taller than 2.5 m within 2 m of a boundary. At about 8.9 m² it is also exempt from Building Regulations, as long as nobody sleeps in it.
How long does delivery take?
The most common lead time for these summerhouses is 14 Days. Check the retailer for your postcode.