The houses will have good views of the park from the upper floors and with a rail station just a couple of hundred metres away, prices for these properties are anything from £1.5 million upwards.
This is the Harbour Master's Office dating from 1853. I believe it is now the Greenwich Heritage Centre.
It is not an island but is bounded on 3 sides by the River Thames as you can see from this map.
The Cutty Sark, one of the great clipper ships which used wind power to race across the seas bringing tea from China and wool from Australia.