img3Flat Pack Houses is pleased to offer a wide range of bespoke and prefabricated Granny Annexes and extensions. Architect designed and built to use traditional English style and aesthetics, our annexes are ideal for adding functional living space to your home.

Our annexes are available in “flat pack” configuration for rapid assembly or as a fully assembled, ready-to-use home annexe. Our expert team can provide advice and help regarding local planning permissions for your new home annexe.

Annexes are the perfect way to add additional living space to your home without the cost or inconvenience of a traditional home extension. Our annexes can be modified with optional fitted bathrooms and kitchens for the ultimate in home comfort.

Designed to your specifications and built using prefabricated materials, our annexes are faster to build than standard home extensions and completed using high quality timber frame for optimum durability and safety.

What are the Main Advantages of using Flat Pack Houses to supply your Granny Annexe?

  • High spec timber frame for optimum durability
  • All of our home annexes use a high spec, strong timber frame and a full timber roof truss for optimum safety, stability and durability.
  • Quiet, comfortable and traditionally English
  • Our home annexes are designed for optimum comfort using high quality double doors and top opening windows. We use traditional English styling to create an environment that’s both aesthetically pleasing and comfortable to live in.
  • Fully customisable to suit your needs
  • Flat Pack Houses can design and built a home annexe to suit your needs. Customise your annexe with optional fitted kitchens and bathrooms, as well as a wide range of custom finishes.
  • Quick and professional assembly available
  • Developed using a unique frame build system, our annexes are easy to build.

Contact Us to Learn More

Order your custom annexe as a “flat pack” system for self-building, or let our experienced team deliver and build your annexe.

Contact Flat Pack Houses today to learn more about our wide range of custom home annexes.

Granny Annexe Prices

All prices area budget estimates, inclusive of VAT and include our high specification throughout.

  • 3.6m x 2.7m –9.72m2 –£16,995.00
  • 4.0m x 3.0m –12.00m2 –£18,995.00
  • 4.8m x 2.7m –12.96m2 –£18,995.00
  • 5.0m x 3.0m –15.00m2–£20,995.00
  • 6.0m x 3.0m –18.00m2 – £23,995.00
  • Anything bigger please contact us for a budget estimate.

Standard Specification:

  • Aluminium Bi Fold Doors available in any RAL colour.
  • Western Red Cedar Cladding.
  • Latest Infra-Red Heaters
  • Dimmable LED lighting
  • Ample electric sockets
  • Choice of flooring including real wood
  • Choice of designer internal decor (from our range)
  • Mains smoke alarm

Optional Extras:

  • Cloaks/WC – £2,245.00
  • Add Shower – £1,495.00
  • Air Conditioning – £1,500.00
  • Mood Lighting – £600.00
  • Blinds integrated into glazing – £800.00
  • Rear Window – £450.00