PHILADELPHIA · c. 1840

Black Metropolis

An architectural study in progress

A neighborhood, reconstructed

The 477 footprints and wall heights come from your GeoJSON. Heights are feet to the roofline; roofs rise above them.

The spatial source is the 1860 Hexamer & Locher atlas. The intended setting is 1838–1840. Building existence, uses, and names for that earlier date have not yet been verified individually.

Façades, roof forms, colors, and paving are provisional interpretations informed by the supplied photographs. Landmark buildings have simple study forms pending specific references. Streets and yards share a provisional ground surface. Mature street trees are interpretive placements, not documented 1840 locations.

Unknown material for building 195 is shown in gray. Building 236 uses the primary height of 36 feet; its second height field says 48.

Atlas plate 4 · Atlas plate 5

Preparing the neighborhood…