I was playing with a more detailed
Map of Iceland* (only the capital and the surrounding areas) and I found my house!!
Map 1
Map 2
Map 3
Map 4
Map 5
Map 6
Map 7
Map 8
Map 9
Map 10
Map 11
(These are all different zoom levels)
*enter "Sléttahraun 28" in the text box in the lower right corner and click "Leita", then zoom as you like.