Last Tuesday’s Daily Dirt about four long-vacant Harlem lots getting affordable housing — for an average of $909,000 per unit — caught the attention of an investor who owns and manages a portfolio of rent-regulated and free-market apartments in Brooklyn and Manhattan. The lot at 136 West 137th Street, he noted, “has been empty forever.” But that didn’t surprise him in the least, because a cost of $900,000 per unit would be “somewhere in the realm of obnoxiously possible.” It’s a narrow lot that will be “extraordinarily hard to build on — the basement needs to be excavated in sections […]

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