150 North 5th Street (The Rialto)Recorded sales & closing prices

The Rialto has a resale record that begins in April 2009, a few months after the declaration was recorded, and runs continuously since — shallow in any given year, as a thirty-one-unit building must be, but unbroken. That continuity means a specific line can usually be priced against its own history.

Pricing here is a loft-per-square-foot exercise with three dominant variables: whether the residence is a simplex or a duplex, where it sits on a deep mid-block plate and what exposure that produces, and the vintage of the owner's renovation. A conversion delivered between 2008 and 2010 now carries close to two decades of owner work in it, at standards that vary widely.

The building-level story for the next several years is the tax reset. From fiscal 2027 the residences are fully taxed for the first time. That raises the true monthly carrying cost, and it also removes the largest uncertainty a buyer normally faces in a Brooklyn condominium of this generation. The right comparable set is the small group of genuine Williamsburg loft conversions and the low-density boutique condominiums near Bedford Avenue, not the waterfront towers, whose amenity load and service model produce a completely different cost structure. Indexed to the last complete year, the Northside boutique market has traded on layout, light and outdoor space rather than on services. Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.