S3 Garden Studio From £9,300.00 Including VAT
3.8m x 2.5m
  • Available in Heritage, Signature, or Premium finishes
  • Fully-insulated for year-round use
  • Perfect as a garden office, pod, studio or retreat
  • Free delivery & fast 2–3 day installation
  • Handmade in Britain with a 10-year structural warranty
Choose your preference
  • No Planning Permission Required
  • Year-Round Thermal Comfort
  • Built-In Drainage & Roof Overhangs
  • Choice of Styles & Materials
  • Security as Standard
  • Flexible Payment & Assembly Options
  • No Planning Permission Required
  • Year-Round Thermal Comfort
  • Built-In Drainage & Roof Overhangs
  • Choice of Styles & Materials
  • Security as Standard
  • Flexible Payment & Assembly Options
S3 Garden Studio
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Why customers choose us?

  • Superior insulation for all-season use
  • Premium materials sourced and treated for longevity
  • Stunning external and internal finishes
  • Advanced IzoPanel roofing. Strong & thermally efficient
  • Quick and stable installation options
  • A beautiful, practical space for work or relaxation

Included as standard

  • Fully insulated walls, roof, and floor (up to 100mm thick thermal boards)
  • Premium 21mm redwood timber cladding with OSB internal finish
  • Reinforced PVC entry door with 28mm toughened double glazing
  • Multi-point locking system for enhanced security
  • Steel-coated internal ceiling lining for durability and a sleek finish
  • Anthracite Grey internal and external door/frame colour
  • Waterproof PVC vinyl flooring for a clean, modern look
  • Integrated PVC guttering and downpipe system
  • Steel ground feet or piles, suitable for hard and soft surfaces
  • Electrical first fix and lighting provisions
  • Full professional installation by our expert team

No planning permission required

Installing one of our garden rooms is typically hassle-free — and in most cases, you won’t need planning permission at all.

Thanks to their carefully considered dimensions and compliant design, our garden buildings fall under Permitted Development Rights for outbuildings in residential gardens. That means you can enjoy extra living or working space without the red tape.

S3 Garden Studio 3.8 /5 2 total Reviews
3.8m x 2.5m

(All sizes are nominal)

Free Delivery in 10 working days
Request a Call Back
£0 Deposit

£0 due on completion of manufacture

£0 due on delivery & installation.

Call us on: 01642 989 742

S3 Garden Room – Your Year-Round Outdoor Space

Upgrade your lifestyle with the S3 Garden Room, a beautifully designed studio that fits effortlessly into your outdoor space. Measuring approximately 3.8m x 2.5m, it’s ideal for use as a garden office, creative pod, therapy space, or family retreat.

Why Choose the S3 Garden Room?

  • Premium materials and cladding options (Heritage timber, Signature composite, or Premium slatted)
  • Exceptional insulation with thermal boards throughout
  • Durable steel roof with PVC guttering and sloped design
  • Factory-engineered for quality and longevity
  • Delivered within 10 working days, installed in 2–3 days

Designed and manufactured in the UK, each room is a fully customisable, energy-efficient solution backed by our 10-year structural warranty. Make your garden a destination with Luxury Garden Rooms.

Specification

S3 Heritage, S3 Signature, S3 Premium, S3+ Heritage, S3+ Signature, S3+ Premium
Cladding Preference

Anthracite Grey, Ivory, Redwood Timber, Silver Grey
Layout

S3 Window Left, S3 Window Right
Model

S3
Window Style

Full-height split window(s)
External Size

3800mm (W) x 2500mm (D) x 2410mm (H front) / 2310mm (H rear)
Internal Area

8.20m²
Door Style

Single Door|French Doors|Bi-Folding Doors
Insulation Type

25mm Thermal Board|50mm Thermal Board|100mm Roof Panels
Roof Overhang

500mm Front|100mm Sides & Rear
Feature S3 Range
External Size (W x D) 3800mm x 2500mm
Internal Size (W x D) 3582mm x 2291mm
Internal Area 8.20m²
Floor Build-Up 143mm incl. 18mm structural boards
Wall Thickness 109mm to 150mm
Wall Insulation 25mm or 50mm foil-wrapped
Roof Build-Up 145mm incl. 100mm thermal boards
Roof Slope 4° front-to-back
Front Overhang 500mm
Side/Rear Overhang 100mm
External Guttering Rear PVC + downpipe
Glazing 28mm toughened double glazing
Groundworks Steel piles (soft) or feet (hard)

No — as long as it’s installed 500mm from any boundary and not used as permanent accommodation, it falls under Permitted Development in most areas.

Professional installation usually takes 2 to 3 days, depending on access and ground conditions.

Yes. All S3 models are available in self-assembly kits with full instructions and phone support. Alternatively, let our in-house team handle it for a seamless experience.

Prices include VAT, full insulation, doors, windows, internal finishes, flooring, roof, cladding, and the groundwork system (steel piles/feet). There are no hidden extras.

Yes — with 50mm thermal boards in Premium, and 25mm in Signature and Heritage, plus double glazing and a fully insulated roof and floor, the S3 range is made for year-round comfort.

  • Fully insulated floor, walls, and roof for year-round use

  • Premium timber or composite cladding depending on specification

  • Choice of single, French, or bi-fold doors

  • Durable 28mm toughened double glazing throughout

  • Professional groundworks system included (steel piles or feet)

  • Seamless internal OSB wall finish and steel-lined ceiling

  • Waterproof, easy-clean PVC vinyl flooring

  • Integrated guttering and 4-degree pitched roof

  • Finished in contemporary Anthracite Grey throughout

  • Foundation Types:
    • Steel Ground Piles: Ideal for grass, gravel, or soft soil
    • Steel Ground Feet: Designed for patios, paving slabs, or concrete
  • No Concrete Required: Quick installation with minimal disruption
  • Adjustable and Corrosion-Resistant: Engineered for all-year-round performance
  • Included as Standard: Every model comes with the correct kit for your surface type
  • Installed or Self-Fit: Included with both installation and self-assembly options
  • Timeframe: 2–3 days for most installations
  • Team: Performed by our in-house expert fitters (no subcontractors)
  • Method: Pre-engineered components ensure clean assembly
  • Scope: Full install includes structure, windows, doors, flooring, roofing, and guttering
  • Self-Assembly Option: All models available in flat-pack format with full instructions and helpline support
Luxury Garden Rooms 1
Luxury Garden Rooms 1
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Luxury Garden Rooms 4
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  • Delivery Area: UK mainland
  • Timescale: Delivery within 10 working days of order confirmation
  • Packaging: All components clearly labelled and securely wrapped
  • Offload Assistance: Our drivers assist with careful unloading
  • Coordinated Service: Delivery aligns with installation dates where required

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Looking for Bespoke?

If you have unique requirements or would like to explore custom sizes, door placements, finishes, or internal layouts, we’re here to help. Our team can tailor a garden studio to your exact needs.

Find Out More
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