Supporters of universal design have long argued that it costs little, if any more, to make buildings inclusive and accessible. However, myths about cost remain and are perpetuated across the construction industry. A feasibility study by HCMA Architecture + Design for the Rick Hansen Foundation in Canada makes another attempt at the argument. In their report, they compare the Foundation’s certification features with Canada’s building code. Then they determine the cost increase by designing to the Foundation’s certification.
The key finding is similar to others. The average new construction cost increase is estimated to be an additional 1% of the construction in some cases. In others, there is no cost. But there is more to this research which reports on three certification levels and several design elements. The other key point is that the building code alone does not make buildings fully accessible.
There are lots of graphs and drawings and it looks very technical. There are case studies across public, commercial and residential properties. This is a major piece of work at 80 pages with another 200 pages for appendices. Bottom line: the Canadian and Ontario building codes do not meet the needs of people with disability, and accessibility can be achieved with minimal cost impact with thoughtful/universal design.
There is a very readable (simplified) news article in the Canadian Architect magazine, titled, Inclusive and Accessible Buildings Can be Constructed at No Additional Cost. Or you can download the full research report, Rick Hansen Foundation Accessibility Certification Cost Comparison Feasibility Study.