Attuned to the growing value of his property, Moore adapted to the inexorable development of the grid. Throughout the 1820s, the Common Council opened streets and avenues through his Chelsea estate, and Moore became a successful developer of his estate. Moore established a covenant for the neighborhood to control its character. The text on the map’s lower-right corner indicates that the purchasers of the lots needed “to build fireproof houses of good quality” and avoid nuisances. The deeds specified the materials and dimensions of houses and prohibited the construction of stables or buildings for manufacturing. To prevent speculators from keeping lots vacant, buyers were also required to build at least one structure by a specified date. By the late 1860s, most of the neighborhood had been built up, and Moore had reaped its financial rewards. In 1820 he had valued his estate at $17,000. The New York Sun estimated his wealth at $350,000 in 1845 and $600,000 in 1855. AR