Brooklyn Typology: blockgroups by decade built up

Zone	Density per acre	Units per acre	Platted	Decades Built Up	Primary Housing Type	Neighborhood
tract 225, blockgroup 1	28.50	11.15	1839	1870 — 1890	two to four flats	Crown Heights
tract 229, blockgroup 4	88.02	43.44	1839	1870 — 1890	two to four flats	Bedford-Stuyvesant
tract 243, blockgroup 1	96.27	43.15	1839	1870 — 1890	two to four flats	Bedford-Stuyvesant
tract 565, blockgroup 1	101.82	46.09	1850	1870 — 1890	apartments above retail	Greenpoint
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 227, blockgroup 1	67.11	29.24	1839	1870 — 1910	apartments above retail	Bedford-Stuyvesant
tract 237, blockgroup 2	32.39	10.29	1839	1870 — 1910	two to four flats	Bedford-Stuyvesant
tract 297, blockgroup 3	74.06	37.75	1839	1870 — 1920	two to four flats	Bedford-Stuyvesant
tract 480, blockgroup 1	83.43	31.51	1850	1870 — 1920	two to four flats	Parkville
tract 185.01, blockgroup 1	178.68	62.95	1839	1870 — 1944	five story apartments	Fort Greene
tract 162, blockgroup 2	62.68	35.5	1880	1870 — 1950	single family attached	Bay Ridge
tract 988, blockgroup 2	92.18	30.03	1880	1870 — 1950	single family attached	Canarsie
tract 277, blockgroup 4	120.70	45.02	1839	1870 — 1960	two to four flats	Bedford-Stuyvesant
tract 393, blockgroup 1	70.07	23.98	1839	1870 — 2000	two to four flats	Bushwick
tract 399, blockgroup 3	96.25	43.96	1840	1870 — 2000	two to four flats	Bushwick
tract 403, blockgroup 1	45.93	18.21	1840	1870 — 2000	two to four flats	Bushwick
tract 419, blockgroup 1	113.36	33.74	1840	1870 — 2000	two to four flats	Bushwick
tract 435, blockgroup 1	104.88	27.48	1840	1870 — 2000	apartments above retail	Bushwick
tract 447, blockgroup 2	45.06	14.16	1840	1870 — 2000	loft conversions	Bushwick

Brooklyn Typology

List of blockgroups built up starting around 1870