Client Name

Leaf Grimshaw




Home Extension


External dimensions: 6.2m by 3m
Internal height: 2.15m(min)
Internal area: 16.8msq


We're very happy indeed with the final result. The quality and speed of the build has been excellent. Rob's skill's, knowledge and attention to detail have been second to none so if you could pass on our thanks to him especially we'd be grateful.

Many thanks to everyone who's been involved in our project. We're already using the room and it's everything we'd hoped for and more.


This family wished to build a new extension to replace their old-style conservatory which was proving unbearably cold during the winter months, making it frustratingly unusable. Our buildings are exceptionally thermally efficient, being constructed from highly insulated SIPs panels and high-quality double glazing. The result is a fabulous cozy yet spacious new room that can be used throughout the year, with minimal energy input.


External finish: Kiln dried FSC Western red cedar with secret fixings. It can be oiled annually to maintain the warmer tones.

Sedum roof: As well as looking fantastic especially from the upper rooms of the house, a living sedum roof harnesses many other benefits:

- Wildlife: Sedum roofs create a great habitat for mini beasts and provide food for butterflies, bees and seed-eating birds. The spent flower stalks supply nesting material for birds.

- Added insulation: Research has found that living roofs stabilise and moderate the temperature of the studio below, both winter and summer.

- Rainwater management: A green roof absorbs up to 75% of rainfall and releases it slowly, reducing pressure on drainage systems. A green roof also filters pollutants from rain water.

- Noise reduction: A sedum roof significantly reduce noise inside a building; ideal if you want peace and quiet in your garden studio.

- Improved air quality and wellbeing: CO2 is absorbed, while dust and pollutants are filtered out.

Bespoke glazing: French doors framed by high fixed windows with trickle vents.

Laminate flooring: An aesthetic flooring that is welcoming yet practical. It has bevelled edges and wide planks and comes with a 25-year manufacturer's warranty.

Certificated electrics: 6 internal dimmable LED down-lights and 4 double power sockets.