I am not sure how this works in the UK although I assume it is similar to the US. It is not my question but I think the spirit of the question is getting to whether or not the remaining 17 acres is valuable in terms of how it can be used.
At least in the US, acreage could be zoned as commercial or residential, etc. It could also be deemed wetlands or the soil composition could be unstable or inappropriate for commercial utilization. Finally, it could be contaminated in some manner that would prevent use.
So how about:
35 On December 5, 2018, NWBO entered into an agreement with regards to its property near Cambridge, UK. Did this result in the sale and/or transfer of the contaminated land and its associated liability and is there any current impediment to NWBO's use of the remaining 17 acres?