block group Density
per acre		 Units
per acre		 Platted Decades
Built Up		 Primary Housing Type Neighborhood
Tract 146, Blockgroup 1 30.30 12.19 1900 1920 – 1950 single family detached Dyker Heights
Tract 162, Blockgroup 2 62.46 35.5 1880 1870 – 1950 single family attached Bay Ridge
Tract 171, Blockgroup 3 51.72 23.85 1870 1900 – 1950 single family attached Windsor Terrace
Tract 213, Blockgroup 2 160.53 33.39 1860 1900 – 1950 five story apartments Crown Heights
Tract 336, Blockgroup 2 45.53 17.19 1900 1920 – 1950 single family attached Sea Gate
Tract 579, Blockgroup 2 10.60 4.19 1850 1900 – 1950 industrial Greenpoint
Tract 702.01, Blockgroup 5 37.23 15.21 1940 1940 – 1950 single family detached Mill Basin
Tract 988, Blockgroup 2 92.00 30.03 1880 1870 – 1950 single family attached Canarsie