block group Density
per acre		 Units
per acre		 Platted Decades
Built Up		 Primary Housing Type Neighborhood
Tract 134, Blockgroup 3 80.81 35.87 1880 1890 – 1910 single family attached Bay Ridge
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 177, Blockgroup 1 0.01 0 1865 1865 – 1873 institutional or recreational Prospect Park
Tract 238, Blockgroup 1 98.78 32.89 1880 1880 – 1920 two to four flats Borough Park
Tract 284, Blockgroup 3 86.22 31.81 1880 1880 – 1910 two to four flats Bath Beach
Tract 296, Blockgroup 1 98.53 43.47 1880 1890 – 1940 two to four flats Gravesend
Tract 492, Blockgroup 3 79.79 31.8 1870 1920 – 1960 apartments above retail Kensington
Tract 508, Blockgroup 4 341.80 108.85 1870 1880 – 1930 four story apartments Flatbush
Tract 766, Blockgroup 1 114.46 38.51 1870 1900 – 1930 single family detached Flatbush
Tract 836, Blockgroup 2 40.90 14.19 1870 1900 – 1920 single family semi-detached East Flatbush
Tract 882, Blockgroup 4 184.35 65.87 1870 1890 – 1910 two to four flats Brownsville
Tract 884, Blockgroup 1 141.67 54.69 1870 1890 – 1910 apartments above retail Brownsville
Tract 886, Blockgroup 1 119.16 44.03 1870 1890 – 1910 two to four flats Brownsville
Tract 900, Blockgroup 3 91.75 31.94 1870 1890 – 1910 two to four flats Brownsville
Tract 908, Blockgroup 3 154.90 58.88 1870 1955 – 1960 high-rise apartments Brownsville
Tract 984, Blockgroup 1 71.91 23.54 1880 1950 – 1955 single family attached Canarsie
Tract 988, Blockgroup 2 92.00 30.03 1880 1870 – 1950 single family attached Canarsie
Tract 992, Blockgroup 1 52.64 18.35 1880 1860 – 1920 single family detached Canarsie
Tract 1148, Blockgroup 1 45.77 14.6 1870 1880 – 1920 two to four flats Cypress Hills
Tract 1184, Blockgroup 3 107.45 31.48 1870 1880 – 1920 single family attached Cypress Hills
Tract 1194, Blockgroup 3 72.93 26.16 1880 1890 – 2000 two to four flats East New York