01932 481721  01252 364569

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321garage conversions, loft conversions, room conversions, fleet garage conversion price, quote for garage conversion

annexes and garage conversions
will work with you to tailor your garden office to suit your needs, ensuring your home office has plenty of natural light and ventilation. We will be happy to help design your 321 garage conversion layout to ensure the space is perfectly appointed with the electrical, data and telephone points. We cover New Malden, Claygate, Farnham, Basingstoke, Thames Ditton, Hook, Fleet, Reading, Guildford, Camberley and surrounding areas providing 321garage conversions, even with kitchens installed to create a truly independent building from the family home which is ideal when you start to employ staff or entertaining visitors.  

Project Managed 321Garage and Room Conversions
From individual design through to installation, we provide a complete service and our friendly team are always on hand to provide any expert guidance required and to help you select the right building for your needs.

Bespoke craftmanship and attention to detail from a family run specialist company, committed to the design, planning, construction and hand-over of a range of garden buildings to be proud of. You are safe in the knowledge that our buildings are constructed using only premium quality materials, labour and finishing.

A garden room for all year comfort

Superb insulation, double glazed windows and efficient

heating system to provide a perfect home for all seasons.


We have over 30 years of combined experience in project management and executing construction projects of all kinds from garage conversions, room conversions, extensions, kitchen conversions, conservatory conversions from glass to solid roofs and full extensions. Our 321 teams are professional and reliable, we will work within your constraints. We always stay on the job until it's done to your satisfaction.

Our vaulted ceiling creates a light an airy attractive room, but for minimal impact in your garden we have designed a flat roof system.


Garden Annexes and garage conversions designed by you, with our help - We will visit you at home, and take the time to guide you through all of the following options to make sure your new garden office building meets your specific needs:

  • External cladding and colour schemes for garden buildings: use subtle tones to blend into a rural environment, or bold primary colours for a modern appearance
  • A very wide range of internal colours for both walls and ceilings: you don't have to settle for pine cladding if you don't want to!
  • Additional rooms: create rooms for privacy, meetings, storage, or a reception area

  • Dual uses: add bedrooms, kitchens, shower or bathrooms to extend the use of your building
  • Heating: in addition to our standard fitted electric convector heaters, we have the option of air conditioning
  • Windows and doors: are fully double glazed. Choose from options for French doors, sliding doors, as well as full length screen windows or woodenVelux windows
  • Roof styles: Choose a pitched roof for a classic and traditional feel, or a mono-pitch roof for a more contemporary look.


All of our garden offices are fully insulated which make them extremely comfortable all year round whatever the British weather throws at us. So commute to the bottom of the garden to your own purpose made home office for a truly relaxing and productive day.

321 Products

321 Garage conversions, luxury transformations of a garage or underutilised room in your home, we carry out Room conversions including lintel installations,  Extensions for domestic houses, 321 Roofing, 321 carpentry and tiling, 321 Felt roofing, 321 Window and door installations, 321 Kitchen fitting, 321 Plumbing and complete bathroom installations, 321 Flooring, 321 Tiling, 321 Fascias, 321 soffits and guttering, 321 Kitchens, the complete home solution. VISIT OUR ONE STOP SHOP


321 Services

If you are looking to build a small add-on or a convert a room, we team up with architects to get the job done. Do you need new windows? Or your bathroom re-modelled? Is it time for a new room or new decking? We will make your dreams a reality.

We use family-aware craftsmen who care about our products and your home and appreciate the awkwardness of running a family and your home during the building works.
We pride ourselves on giving you superior quality craftsmanship to make your garage into an additional room inside your house, which increases the value of your home, not a poor quality plasterboarded garage with a cheap price, without regulated certificates. 

We make NO FALSE PROMISES. What we offer is what you get.

Our Professional Guarantee

We offer you a fully professionally managed service, with a survey and installation by our special garage conversion team, not just a general builder and a few bricklayers from the local on-line directory.

Contact 321 Garage Conversion Company today!

Loft Conversions to provide additional living accommodation

321 Testimonials

"The workmanship was superb and the job was organised extremely well from start to finish." -- M Tooley, Weybridge

"We love our new conversion, now the kids can have their own private Den and when they are at school I use it as my office, thank you for a well managed project without stress or worry." -- Lesley, Woking

Just some of the areas we cover:

Camberley, Cranleigh, Guildford,Fleet, Farnham,Farnborough, Hook,Old Basing, Basingstoke, Oakley,Winchester,Sandhurst, Owlsmoor, Windlesham, Lightwater, Godalming,Surrey Heath Council area, Aldershot, Woking, Winkfield, Reading, Warfield, Bracknell, Crowthorne, Wokingham, Woodley, Henley, Marlow, London, Hampton, Wimbledon, Egham, WIndsor, Sunningdale, Staines, Woking, Ashford, surrey, Eastleigh,Camberley , Farnborough, Bisley, Bordon,West End, Petersfield, Liss, Woking, Weybridge, Walton-on-Thames, Hook Heath, Sandhurst,Yateley, Crowthorne, Finchampstead, Wokingham, Bracknell, Wargrave, Warfield, St John's Woking, Knaphill,Guildford,Wood Street Village,Farncombe, Camberley , Farnborough, Bisley, Bordon,West End, Petersfield, Liss, Woking, Weybridge, Walton-on-Thames, Hook Heath,  Yateley, Crowthorne, Finchampstead, Wokingham, Bracknell, Wargrave, Warfield, St John's Woking, Knaphill, Guildford, Wood Street Village, Farncombe, Fleet,Pyrford, Pyrford Woods, Basingstoke, Hook, Forest Park, Ascot, Sunningdale, Virginia Water, Feltham, Winkfield Row, Winkfield, Oxford, Henley, Maidenhead, High Wycombe, Holyport, Hurst, Wargrave, Thatcham, Hants, Berkshire, Surrey, London,  Richmond, Reading,

321 Solutions Ltd

Farnborough 01252 364569 

Woking 01932 481721