It is logical to assume that “71 Mount Pleasant Road” (second floor which we are renting) and “71a Mount Pleasant Road” (First Floor) was probably all the same building being referred to in the “Conveyance” document of 1920 – affixed to wall of the back bedroom. This was a substantial building of four (or five) floors (in the UK the 1st floor equates to the Ground Floor in the US – yes – we exported our culture but apparently not our counting) – excluding any basement. We think that once the (limestone) quarry was finished and used-up – the land was sold for housing. However, the quarry proper (which spread over some miles) was not officially closed until 1969 – although obviously not in this exact location – which must have finished earlier (the quarry is said to have existed for 300-years).