i'd like to help but the note isn't quite clear.

there are 3 houses near this pin, one is 30m to the south (east side of road), one 100m to the north (east side of the road), one 100m to the north (west side of the road). which of these houses are you talking about?

and what should be the correct address of that house? i'm assuming "KW1 4YD" is the post code,but what is the street number?