Delivering on site
The 10% is only the start of the work. The habitat has to be secured for at least thirty years, managed to a plan, monitored and reported on. That duty has to live somewhere. Usually it is a management company funded by service charge, with you carrying it until adoption and answering for it long after.
If the habitat underperforms in year eight, somebody has to put it right. Residents notice, and so do planning authorities.
