I was very excited to visit the completed #WorkStack today - for which Alex de Rijke's highly effective concept sketch of stepping stacked logs was on the drawing board back in my days at dRMM!
The result is a brilliantly innovative solution to constrained sites, by putting industrial units on-top of each other within a compact footprint- all made possible with lightweight structural cross-laminated-timber (CLT). The structure stores 343 metric tonnes of sequestered carbon, whilst making it viable for Greenwich Enterprise Board to provide essential creative, office and light-industrial work spaces at affordable rents.
Inside, the raw CLT finish is left exposed; reducing the cyclical fit-out rip-out of finishes often seen in commercial lets. The building felt brand-spanking-newly completed despite being occupied for over 18 months, partly due to material robustness, but also the care to the building by its occupants. The units give flexibility for tenants to arrange and fill their space for any imaginable use, a welcome offer where workshop space in London is otherwise hard to find. We were fortunate to visit both a furniture and kimchi maker's workspaces, both of whom described the unique comfort and pleasure of working in such tactile and warm conditions (well insulated and heated by air source heat pump), complete with good daylight and views. Notably the relative humidity remains low and constant, which provides ideal conditions for both makers, where typical industrial workspaces have fluctuating temperatures and moisture levels.
For me, this is a great example of how off-site timber can unlock difficult sites, competing demands for land use and the need to sustainably densify.
Another example of how timber construction can maximise usable space in the city is exemplified in the recently launched 'Optoppen' project - a Dutch term translating as "topping up," through the addition of lightweight, low-carbon roof extensions. The project, supported by Built by Nature, brings together case studies and EU policies that encourage #Optoppen as well as a tool that allows you to calculate how much square meterage could be gained and carbon stored - go check it out!