Built Environment

i​‌‍‍‍‌‍‌‍‍‍‌‌‌‍‌‌‌‌‌‌​mplementing external exa​‌‍‍‍‌‍‌‍‍‍‌‌‌‍‌‌‌‌‌‌​miners comments on thesi​‌‍‍‍‌‍‌‍‍‍‌‌‌‍‌‌‌‌‌‌​s