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.

Bespoke garden room
small garden office build
Garden room guildford surrey
Garden Room Beckenham

Bespoke Garden Room Pricing

Bespoke means any size from 3.3m to 8.8m wide and 2.4m to 4.6m deep. Design your exact garden room in our online configurator and get an instant price. The popular standard sizes below are a guide starting point (prices include delivery, installation and VAT).

SizeExternal W x DGuide price (inc VAT)
Midi4.0 x 3.0mFrom £18,940
Maxi5.0 x 3.5mFrom £22,758
Multi6.0 x 4.0mFrom £26,080
Multi +7.0 x 4.5mFrom £30,635

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

Price includes delivery, standard pile groundworks system, installation and VAT.

Price excludes electrical connection, subject to survey.

Design yours and get a price

Garden Room Specification

Standard specification
✓Any size from 3.3m to 8.8m wide and 2.4m to 4.6m deep, designed in our configurator
✓Engineered insulated panels (100mm PIR insulation) with traditional timber framing
✓Insulated steel roof panel system
✓2.2m full-height UPVC sliding door (smooth anthracite grey outside, white inside)
✓Premium composite cladding to the front; anthracite cladding to the sides and rear (Western Red Cedar available)
✓Vinyl oak flooring
✓Melamine wall finish (upgrade to a fully plastered and decorated interior available)
✓Contemporary skirting board, primed and painted white
✓Small electrical package included: 3 double sockets, 2 LED panel lights, consumer unit, 1.5kW radiator (1st and 2nd fix). Larger packages available. Mains connection is a provisional allowance (typically £1,000 to £2,000), confirmed by our registered electrician after a site survey.
✓Ground screw foundation included (deduction available if you have an existing concrete base)
✓10 year structural warranty
✓Bespoke door and window layout, left or right-hand configuration

Optional Extras For Your Bespoke Garden Room

Options and upgrades, configured and priced in the designer
OptionPrice
Any size, 3.3 to 8.8m W x 2.4 to 4.6m DConfigured in the designer
Premium plastered and decorated interior finishConfigured in the designer
Internal partition wall (optional connecting door)Configured in the designer
Extra sliding door£1,200
0.9m single door (clear or frosted glass)£1,050 (frosted + £50)
Full-height windows (0.6m / 0.9m, optional top opener), standard and slot windowsFrom £500
Composite slatted cladding to the sides£100 per m²
Western Red Cedar cladding (front or sides)£200 per m²
Signature canopy / decking feature+ 5%
Composite decking£300 per m² (plus £900 starter)
Side privacy screens (require canopy and decking)£425 per side
Electrical package upgrades and add-onsConfigured in the designer
Mains electrical connection (via our registered electrician)Provisional £1,250 (typically £1,000 to £2,000)
Data cabling£550
Air conditioning (heating, cooling, dehumidifying)£1,750
Extra external up/down lights£95 each
Weatherproof external double sockets£235 each
Increase building height to 2.75m or 3.0mConfigured in the designer
L Shaped Garden Building
Garden Annexe Buildings
Bespoke garden room tunbridge wells
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

Design Your Garden Room

Garden Office Buildings want to make your dream garden room a reality. Use our online configurator to design it exactly how you want, see it in 3D, and get an instant price.

We cover South East London, Kent, Surrey, and East and West Sussex.

Design yours and get an instant price