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	113.32	72.7	1816	1820 — 1900	four story apartments	Brooklyn Heights
tract 519, blockgroup 1	58.46	23.96	1830	1830 — 1900	two to four flats	Williamsburg
tract 553, blockgroup 2	77.75	33.85	1830	1830 — 1900	two to four flats	Williamsburg
tract 145, blockgroup 4	62.35	24.11	1839	1870 — 1900	apartments above retail	Sunset Park
tract 165, blockgroup 2	114.14	57.5	1839	1870 — 1900	single family attached	Park Slope
tract 874.01, blockgroup 1	72.34	33.45	1890	1870 — 1900	high-rise apartments	East Flatbush
tract 291, blockgroup 1	53.71	25.54	1839	1880 — 1900	two to four flats	Bedford-Stuyvesant
tract 315, blockgroup 2	132.16	62.04	1839	1880 — 1900	two to four flats	Crown Heights

Brooklyn Typology