Extensions and new builds

Bristol Green Roofs

Sedum turning red, stressed by the summer sun. A view over Bathford cricket ground and Solsbery Hill beyond.

Garden room

Bespoke design and installation.



Garden room extension. Solar hot water, 400mm insulation, 16m3 Hemp and Lime, 1.76 tons of carbon sequestration.


Permitted development upgraded EPDM and insulated

Built under permitted development small extension can be added without planning consent or building control. The size is limited by the overall volume and flat roofing became a popular option. The leaky mineral felt has been made watertight permanently and insulation has now been added.


Bristol Green Roofs: Kitchen extension

Kitchen extension. Pitched at 2:1 fit with the existing building line.


Case Studies
Bin stores and burial mounds
Economics of scale.

Sheds and workshops
Self-build or contracted.

Extensions and new builds
Responsibilities and liabilities.

Vegetable garden


Green Roof process
Membrane, deck-drain, substrate and habitats.

Talks and workshops
Green Roof training
Principles, processes, design and installation for retrofit and new build construction. Successful self-build or managing contractors.

Advice and consultancy
Green Roof preliminaries
Building principles, design critique, project planning, and team building.


Green Roof products
Ethylene propylene diene monomer, deck-drain, substrate, planting.

Green Roof partners
Schools, hospitals, retail, and commercial warehousing. Prefabricated and bespoke new build. Conservation and renovation.


Bristol Green Roofs
Flat roofs are a waste of space, they’re seldom insulated, leak, overheat and look awful. With so many altruistic reasons to install, it’s no wonder most motivations are self-serving.


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