Bespoke Garden Rooms

At Garden Office Buildings, we pride ourselves on taking a personal approach with every client and work with you to create a bespoke garden room that meets all your individual requirements

We have dedicated years to refining our construction methods, collaborating closely with structural engineers, architects, and manufacturers to ensure we deliver only the highest quality garden rooms.

Every building is fully compliant with building control standards and comes with a 10-year warrantee. We are confident that our garden rooms exceed industry expectations, surpassing building regulation requirements and offering a life expectancy of at least 50 years.

We can adjust the quantity and configuration of windows and doors, and can include partition walls to divide the building into multiple rooms.With our bespoke garden rooms we can also include a toilet, shower room/bathroom, and kitche/kitchenette.

For all our projects we produce a detailed drawing, and we will work with you to finalise the best configuration for your requirements.

We would love to discuss your project further at our Biggin Hill showroom.

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small garden office build
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Garden Room Beckenham

Bespoke Garden Room Pricing

Price includes delivery, installation and VAT.

Depth / Width 4.0m 4.5m 5.0m 5.5m 6.0m 6.5m 7.0m 7.5m 8.0m
3.0m £21,745 £23,095 £24,495 £25,895 £27,245 £28,595 £29,995 £31,395 £32,745
3.5m £23,295 £24,645 £26,045 £27,445 £28,795 £30,145 £31,545 £32,945 £34,295
4.0m £25,595 £27,045 £28,395 £29,845 £31,195 £32,545 £33,945 £35,395 £36,745
4.5m £27,745 £29,195 £30,545 £31,995 £33,395 £34,745 £36,145 £37,545 £38,895

External sizes shown. Standard height of 2.5m (increase to 2.75m and 3.0m available)

Price includes delivery, installation and VAT.

Price excludes electrical connection, subject to survey.

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Garden Room Specification

Standard Build Specification
✅ Engineered insulated panels (100mm PIR) with timber framing
✅ Full-height 2.5m wide UPVC sliding doors & windows (smooth grey outside, white inside)
✅ Signature Canopy/Decking Feature
✅ Side Screens (Open/Closed Left or Right)
✅ Premium Composite or Western Red Cedar Cladding (Front)
✅ Anthracite Cladding (Sides & Rear)
✅ EPDM One-Piece Rubber Roof
✅ Integrated Grey Composite Decking
✅ Bespoke door/window layout & left/right configuration
✅ Flat internal ceiling & reversed external roof for premium look
✅ Plasterboarded, plastered, and decorated interior (3 coats white paint)
✅ Choice of Natural Oak or Light Grey Laminate Flooring
✅ Contemporary white painted skirting board
✅ 1st and 2nd Fix Electrical
✅ Dimmable LED downlights or panel lights, canopy spotlights, double sockets, and consumer unit

Optional Extras For Your Bespoke Garden Room

Features Price
Increase Building Height to 2.75m or 3.0m Price on request
Additional Composite Slatted Cladding for Sides of Building + £115 per m2
Upgrade to Western Red Cedar Cladding from Composite + £45 per m2
Additional Composite Decking (incl. foundations – subject to site survey) + approx £300 per m2
Upgrade to 3.5m Bi-folding doors + £3,500
Internal Partition Wall with Internal Doors (e.g. for bathrooms, storage rooms, etc.) Price on request
Outdoor Double Plug Socket + £235
External Up/Down Light + £95
Electric Wall-Mounted Oil-Filled Panel Heater + £395
Additional Double Plug Socket in Brushed Steel + £60
+ £85 with USB ports
Additional Lighting Zone on Separate Switch + £125
Double Wireless Quinetic Switch System (control lights from house) + £245
Air Conditioning Unit (Mitsubishi – heating, cooling, dehumidifying) + £1,750
L Shaped Garden Building
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Bespoke Garden Room Woking

Speak to the garden room experts

Looking to start your garden building project or have any further questions?

We specialise in Bespoke Garden Rooms in South East London, Kent, Surrey, and East/West Sussex.

Call us: 01689 818 400
Email us: info@gardenofficebuildings.co.uk
Our garden room showroom is open Mon-Sat by appointment

Why choose us?

  • We work locally in the South East of England – covering SE London, Kent, Surrey, and East/West Sussex
  • Premium construction materials used, including 100mm PIR insulation to ensure building can be used all-year round
  • 55+ years experience in the garden room industry
  • Passionate about what we do
  • Visit our showroom to view our buildings and chat over your project

Get Started with your Bespoke Garden Room

We want to make your dream garden room a reality. Click the button bellow to get started and receive a quick quote.
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