In Montreal, municipal regulations forbid any building from exceeding the height of Mount Royal, or 233 m (764 ft) above mean sea level. Above-ground height is further limited in most areas and a minority of the downtown land plots are allowed to contain buildings exceeding 120 metres in height. The maximum limit is currently attained by 1000 de La Gauchetière and 1250 René-Lévesque, the latter of which is shorter, but built on higher ground. To build higher than 1000 de La Gauchetière while respecting this limit would be to build on the lowest part of downtown; the maximum height there would be approximately 210 metres.