Garden Rooms

About Our Garden Rooms

Garden rooms give you flexible, year-round living space without the cost and disruption of a traditional extension. These timber buildings transform how you use your garden, creating dedicated space for home offices, fitness studios, art workshops, or simply a quiet retreat from family life. Our collection includes insulated garden rooms with 50mm wall thickness for winter warmth, modern designs with floor-to-ceiling glass, and corner models that maximise awkward plots.

Every garden room features pressure-treated timber for 25-year rot resistance, UPVC double-glazed windows with toughened safety glass, and EPDM rubber roofing that lasts 50+ years. You'll find options from £3,329 for compact 8x6ft models up to £29,000 for fully insulated home offices with electrics. All timber products include our 10 Year Warranty, plus free UK mainland delivery and professional installation service available nationwide.

Browse our modern garden rooms for contemporary aesthetics, or explore insulated garden rooms if you need year-round comfort.

Your Complete Garden Room Guide

• [+] What Will Your Garden Room Become?

  Home Office & Studios
  68% of our customers buy garden rooms for remote working. A dedicated 10x8ft office keeps work separate from home life, with proper insulation maintaining 18-22°C without constant heating. Expect to save £200+ monthly versus renting co-working space.

  Fitness & Wellness Spaces
  Garden gyms eliminate gym membership costs (average £40/month UK-wide). Our home saunas create spa experiences at home, while yoga studios benefit from the natural light through full-length glazing.

  Creative Workshops & Hobbies
  Artists, crafters, and makers need dedicated space. Garden rooms provide 100+ square feet for messy hobbies without taking over your spare bedroom. Proper ventilation through opening windows prevents paint fumes and sawdust buildup.

  Guest Accommodation
  Insulated rooms with electrics sleep overnight guests comfortably. Add a sofa bed to a 12x10ft space and you've created proper guest quarters worth £15,000+ as a home extension alternative.

• [+] Choosing Your Garden Room: Size & Style Guide

  Size Planning
  Start with your primary use. Home offices need minimum 8x6ft (48 sq ft) for desk and chair, but 10x8ft (80 sq ft) allows proper furniture arrangement. Fitness spaces require 10x10ft (100 sq ft) for equipment movement. Multi-use studios benefit from 12x10ft or larger, giving 120+ sq ft for flexible zones.

  Insulation Levels
  Uninsulated summerhouse-style rooms cost from £3,329 but suit summer use only. Insulated models (£6,000+) with 50mm walls and double glazing maintain comfortable temperatures year-round, cutting heating costs 40% versus single-skin buildings.

  Roof Styles
  Apex roofs (pointed) shed rain better and give 7ft+ internal height for a spacious feel. Pent roofs (sloping one way) work brilliantly for corner garden rooms tucked against boundaries, saving garden space.

  Modern vs Traditional
  Modern garden rooms feature contemporary cladding, full-height glass, and minimalist frames. Traditional designs use shiplap cladding and Georgian-style windows. Both offer identical insulation—it's purely aesthetic preference.

  Compare our full range against summerhouses or sheds to understand the differences in construction quality.

• [+] Price Guide: What Impacts Garden Room Cost?

  Budget £3,000-£30,000 depending on these factors:

  Base Price by Size

  • 8x6ft uninsulated: £3,300-£4,500
  • 10x8ft insulated: £6,000-£9,000
  • 12x10ft fully-spec'd office: £12,000-£18,000
  • 16x10ft+ luxury rooms: £20,000-£29,000

  What Adds Cost
  Insulation adds £2,000-£4,000 but saves £300+ yearly on heating. Electrics (consumer unit, sockets, lighting) cost £800-£1,500 professionally installed. Larger windows increase costs by 15-20% but dramatically improve natural light.

  Long-Term Value
  Garden rooms add 5-7% to property value when properly built with planning permission (if required). A £15,000 garden office typically returns £20,000-£25,000 in home value increase, making it a genuine investment rather than an expense.

  Budget-conscious buyers should explore our collection filters for best-value options.

• [+] Key Features: What Makes Quality Garden Rooms

  Structural Timber
  Pressure-treated 44mm x 44mm framing provides the skeleton. Better models use 56mm x 56mm for superior strength. Tongue-and-groove cladding (minimum 12mm thick) creates weatherproof walls, while 19mm shiplap offers premium durability.

  Glazing Standards
  All our garden rooms include UPVC double-glazed units with 4mm toughened safety glass. Argon-filled gaps improve thermal efficiency by 30% versus air-filled units. Opening windows provide ventilation—allow 10-15% of wall area as openable glazing.

  Roofing Systems
  EPDM rubber membranes last 50+ years with zero maintenance, outperforming felt (15-year lifespan) significantly. Roof insulation (50mm minimum) prevents 35% of heat loss in winter and keeps interiors 5°C cooler in summer.

  Foundations
  Level bases are critical—out-of-level by just 10mm causes door binding and structural stress. Concrete bases (100mm thick) cost £800-£1,500 professionally installed but last indefinitely. Timber bearers on paving slabs suit smaller buildings under 100 sq ft.

• [+] Planning Permission: The 2.5m Rule Explained

  Do You Need Planning Permission?
  Most garden rooms install under Permitted Development rights without planning applications. You can build without permission if your garden room:

  • Sits more than 2m from boundaries
  • Stays under 2.5m high (within 2m of boundary) or 4m high (further away)
  • Covers less than 50% of garden area
  • Won't be your primary residence

  When You Do Need Permission
  Buildings over 30 square metres require Building Regulations approval. Listed buildings or conservation areas have stricter rules—always check with your local planning authority before purchasing.

  The 2.5m Height Limit
  This is the most misunderstood rule. Any structure within 2 metres of your property boundary cannot exceed 2.5 metres in height. Beyond 2m from boundaries, you can build up to 4m high. Measure height from ground level to the highest point (apex on pitched roofs).

  Most of our standard ranges comply with these limits. Speak to our advisors on 0800 098 8877 about your specific site.

• [+] Installation & Base Requirements

  Foundation Options

  • Concrete slab bases (recommended): £900-£1,800 professionally poured. Provides level, permanent foundation for buildings up to 200 sq ft. Includes 100mm hardcore, DPM membrane, and steel mesh reinforcement.
  • Paving slab bases: £400-£800 DIY-installed for buildings under 100 sq ft. Use 600x600mm concrete slabs laid on sharp sand. Must be within 5mm level tolerance.
  • Ground screw foundations: £1,200-£2,000 installed. Modern alternative avoiding concrete. Suits sloping sites where levelling costs make concrete expensive.

  Professional vs DIY Installation
  Our professional installation service costs 15-20% of building value and includes:

  • Base inspection and levelling advice
  • Full building assembly by trained teams
  • Roofing felt/EPDM installation
  • Door and window fitting and adjustment
  • 12-month workmanship guarantee

  DIY installation saves money but requires 2-3 people and 2-3 days for typical 10x8ft buildings. You'll need basic tools: drill/driver, spirit level, ladder, and patience for hundreds of tongue-and-groove boards.

• [+] Garden Rooms vs Alternatives Comparison

  Feature	Garden Room	Summerhouse	Log Cabin	Home Extension
  Price	£6,000-£20,000	£3,000-£8,000	£5,000-£15,000	£25,000-£80,000
  Insulation	50mm+ walls	Usually none	40-70mm logs	100mm+ standard
  Installation Time	1-3 days	1-2 days	2-4 days	8-16 weeks
  Planning Usually Needed	No	No	No	Yes
  Year-Round Use	Yes	Summer only	Depends	Yes
  Foundation Required	Level base	Level base	Concrete base	Full foundations
  Lifespan	25-30 years	15-20 years	20-25 years	50+ years
  Electrics Included	Optional	Rarely	Optional	Always

  Garden rooms sit between summerhouses and home extensions—giving you better insulation than summer buildings without the cost and disruption of traditional construction.

Ready to transform your garden? Browse our full collection above, or call our specialist advisors on 0800 098 8877 for personalised recommendations. Every garden room includes our 10 Year Warranty and free UK mainland delivery. Questions? Email sales@greenhousestores.co.uk.