Brett Landscaping And Building Products Launches PermCalc



Sustainability is a major factor within the construction industry, influencing everything from product design and development to project waste management. One of the key challenges for our customers is how to make a project both sustainable and cost effective at the same time. Key drivers for recent legislative and planning changes are the conservation and management of two of our most precious resources - energy and water.

In response, Brett Landscaping and Building Products has launched a new helpful tool for use by developers, engineers and local authorities. The PermCalc software tool is free to use and helps users to quickly and easily design cost effective permeable pavement solutions for SuDS (Sustainable Drainage System) applications.

The Brett Landscaping commercial team developed the application over a number of months and worked with some of their key customers on the project in order to truly understand what they wanted from the software.

PermCalc is the only design software of its kind which can also provide estimated construction costs based on either actual or default costs for each component or construction task.

The estimation facility extends to costing all the adjacent areas including impermeable surfaces such as roofing or conventionally paved areas, kerbs and drain connectors. In this way the designer can model different optional and determine the total pavement construction cost.

Brett Landscaping and Building Products has recently launched their new Beta Flow permeable paving as another offering within their surface water management range. If you would like more information regarding our full range of permeable paving products or our PermCalc tool please call 0845 60 80 579 or email

Please click here to launch the free PermCalc tool.



Have a look to see how well our permeable paving performs. In this test 400 gallons of water are released on to an eight year old permeable pavement within a few minutes.



  • PermCalc
  • Machine Lay Paving
  • Project
  • Alpha Flow
  • Project 2