Brooklyn Typology: blockgroups by decade built up

Zone	Density per acre	Units per acre	Platted	Decades Built Up	Primary Housing Type	Neighborhood
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
tract 284, blockgroup 3	87.25	31.81	1880	1880 — 1910	two to four flats	Bath Beach
tract 377, blockgroup 4	83.03	36.46	1839	1880 — 1910	two to four flats	Bedford-Stuyvesant
tract 804, blockgroup 2	123.43	49.79	1860	1880 — 1910	five story apartments	Prospect-Lefferts Gardens
tract 238, blockgroup 1	100.29	32.89	1880	1880 — 1920	two to four flats	Borough Park
tract 1148, blockgroup 1	45.39	14.6	1870	1880 — 1920	two to four flats	Cypress Hills
tract 1184, blockgroup 3	107.92	31.48	1870	1880 — 1920	single family attached	Cypress Hills
tract 508, blockgroup 4	333.72	108.85	1870	1880 — 1930	four story apartments	Flatbush

Brooklyn Typology