Bespoke

At Garden Office Buildings, we pride ourselves on taking a personal approach with every client and work with you to create a 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.Your building can also include a toilet, shower room/bathroom, and kitchen.

For all our projects we put together 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.

Bespoke garden room Kent and Surrey

Price Guide

Full Installation

Depth / Width 4.0m 4.5m 5.0m 5.5m 6.0m 6.5m 7.0m 7.5m 8.0m
3.0m £24,495 £25,995 £27,495 £28,995 £30,495 £31,995 £33,495 £34,995 £36,495
3.5m £26,245 £27,745 £29,245 £30,745 £32,245 £33,745 £35,245 £36,745 £38,245
4.0m £28,495 £30,045 £31,495 £33,045 £34,495 £35,995 £37,495 £39,045 £40,495
4.5m £30,745 £32,295 £33,745 £35,295 £36,745 £38,245 £39,745 £41,245 £42,745

External

Depth / Width 4.0m 4.5m 5.0m 5.5m 6.0m 6.5m 7.0m 7.5m 8.0m
3.0m £16,495 £17,995 £19,095 £20,095 £21,095 £22,095 £23,095 £24,095 £25,095
3.5m £18,245 £19,445 £20,495 £21,545 £22,595 £23,595 £24,595 £25,595 £26,595
4.0m £19,945 £21,045 £22,095 £23,045 £24,045 £25,045 £26,045 £27,045 £28,045
4.5m £21,545 £22,595 £23,595 £24,595 £25,595 £26,595 £27,595 £28,595 £29,595

External sizes shown at standard 2.5m height.

Price includes delivery, installation and VAT.

Price excludes concrete base foundation and electrical connection, subject to survey.

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Building Specification

Feature Full Installation External
Engineered with insulated panels (100mm PIR insulation) and traditional timber framing ✅ Yes ✅ Yes
Full height 2.5m wide UPVC sliding door and additional windows (smooth anthracite grey outside, white inside) ✅ Yes ✅ Yes
Signature Canopy/Decking Feature ✅ Yes ✅ Yes
Side Screens (Open/Closed Left or Right) ✅ Yes ✅ Yes
Premium Composite Cladding (Front) ✅ Yes ✅ Yes
Anthracite Cladding (Sides & Rear) ✅ Yes ✅ Yes
EPDM One-Piece Rubber Roof ✅ Yes ✅ Yes
Integrated Grey Composite Decking ✅ Yes ✅ Yes
Right or left hand-side configuration and bespoke door/window layout ✅ Yes ✅ Yes
Non-sloping, flat internal ceiling (externally our roofs also appears to be non-sloping as we reverse fir the edges of our buildings – a feature unique to our buildings that makes them look much more premium!) ✅ Yes ✅ Yes
Plaster-boarded, plastered and decorated interior finish (3 coats of white matt emulsion paint as standard) ✅ Yes To be arranged by customer
Choice of Natural Oak or Light Grey laminate flooring ✅ Yes To be arranged by customer
Contemporary skirting board, primed and painted white ✅ Yes To be arranged by customer
1st and 2nd Fix Electrical ✅ Yes To be arranged by customer
Includes Dimmable LED Downlights or LED panel lights, External Spotlights in Canopy Soffit, Double Power Sockets, and Consumer Unit ✅ Yes To be arranged by customer

Optional Extras

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
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Speak to the garden room experts

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

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

Call us: 01689 818 400
Email us: info@gardenofficebuildings.co.uk
Our Kent 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 building industry
  • Passionate about what we do
  • Visit our showroom to view our buildings and chat over your project

Get Started with your Bespoke Building

Garden Office Buildings want to make your dream garden building a reality. Click the button bellow to get started and receive a quick quote.
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