Brooklyn Typology: blockgroups by decade built up

Zone	Density per acre	Units per acre	Platted	Decades Built Up	Primary Housing Type	Neighborhood
tract 5, blockgroup 2	112.83	72.7	1816	1820 — 1900	four story apartments	Brooklyn Heights
tract 519, blockgroup 1	57.40	23.96	1830	1830 — 1900	two to four flats	Williamsburg
tract 553, blockgroup 2	77.12	33.85	1830	1830 — 1900	two to four flats	Williamsburg
tract 145, blockgroup 4	63.54	24.11	1839	1870 — 1900	apartments above retail	Sunset Park
tract 165, blockgroup 2	115.57	57.5	1839	1870 — 1900	single family attached	Park Slope
tract 874.01, blockgroup 1	71.75	33.45	1890	1870 — 1900	high-rise apartments	East Flatbush
tract 291, blockgroup 1	53.52	25.54	1839	1880 — 1900	two to four flats	Bedford-Stuyvesant
tract 315, blockgroup 2	129.75	62.04	1839	1880 — 1900	two to four flats	Crown Heights

Brooklyn Typology