The Orson (402 Union Avenue)

The Department of Buildings filing describes a six-story, 85-foot residential building with six dwelling units and about 10,707 square feet of construction floor area in an R7A district with a C2-4 commercial overlay. Published construction reporting credits Kao Hwa Architects with the design for 402 Union Associates LLC; one listing record credits Makers Collective. The record does not say whether the second firm worked on the interiors, so confirm the attribution before relying on it.

The condominium has six tax lots: Units 1, 2, 3 and 4, and two penthouses, PH1 and PH2. Listing records describe Unit 1 as a two-bedroom of about 1,604 square feet and PH1 as a three-bedroom, three-bath home of about 1,580 square feet. Several listing records give 1,174 square feet for the typical floors. Common charges ran about $592 to $597 a month on the lower units. Listing records also cite a 20% minimum down payment.

Per the offering plan filed with the New York State Attorney General (plan CD250083), the plan was submitted March 17, 2025, accepted August 21, 2025 and declared effective December 1, 2025, with 402 Union Associates LLC as sponsor. The record lists six residential units. The total offering price rose from $13,602,000 to $14,644,000, an increase of $1,042,000, or 7.7%. The record still shows one unit sold; ACRIS shows all six deeded.

The sponsor marketed the homes from $1,799,000 to $3,149,993. PH1 was last asked at $2,995,000, about $1,896 per square foot, after a 4.9% cut, and it closed at $2,900,000.

ACRIS shows these sponsor deeds:

The 1,174-square-foot figure for Units 2 and 3 comes from listing records and is not confirmed against the plan. Unit 1 sold at about $1,133 a square foot on its listed size, well below the upper floors; check what that figure includes before using it as a comparable. On the listed sizes, the typical floors sold near $1,680 to $1,700 a square foot and PH1 near $1,835. Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.

Recent sales

Recent closings at this building, from The Roebling Research Library. Prices are the transfer amounts recorded with the NYC Department of Finance; apartment-level detail is checked against the building’s own file in The Roebling Research Library before publishing.

Market read. Most recent trades (2026 to date) cleared a median $1,699/sf (recorded) across 5 sales. Median listing discount 0.0% from the last ask.

Sales sourced from NYC Department of Finance recorded transfers (BBL 3-02767-7507; each condominium apartment is its own tax lot). Apartment-level facts (line, condition, asking-price context) curated and cross-verified in The Roebling Research Library. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price; square footage from recorded condo declarations and offering plans.

Resales only. All six homes have closed, so any purchase now is a resale from an owner, and the 2025–2026 sponsor deeds are the price reference.

A six-unit condominium. Six owners carry the building's costs. A roof or elevator repair is split six ways, so ask for the reserve balance and the budget.

Closing costs. In a resale the buyer pays the mansion tax (1.25% between $2 million and $3 million) and, usually, the seller pays the transfer taxes. Use the calculators below.

Tax position. No tax abatement was confirmed in this review. Confirm the current tax bill with the seller.

If you're considering The Orson, also look at these Williamsburg condominiums:

• 185 Skillman Avenue — eight-residence new construction near the Graham Avenue station
• 109 Devoe Street — eight residences and a parking unit, with sponsor closings from June 2026
• 100 Scholes Street — eight-residence walk-up between Leonard Street and Manhattan Avenue
• 145 Conselyea Street — three-residence new construction
• 141 Ross Street — 16-residence conversion with a plan submitted in May 2026