251 7th Street (The Argyle)

The building occupies a 13,000-square-foot corner lot with a hundred-foot building frontage and rises twelve stories to 120 feet — 55,536 square feet built, of which 51,012 is residential and 4,524 is the ground-level garage. The massing steps back above the eighth floor: the second through fourth floors carry eight or nine apartments each, the fifth through eighth carry four to six, and the top three floors carry three, which is where the balconies and the largest private terraces are.

Residential lines run 1A on the ground floor, then A through J on the lower floors tapering to A through C at the top. The ninth floor is now three apartments rather than four — units 9A and 9D have been combined into a single tax lot. Interior specification, per listing and development records, runs to wide-plank maple flooring, ceiling heights up to roughly nine feet two inches, quartzite counters, bamboo cabinetry, stainless appliances and in-unit laundry. Deep bay windows and balconies alternate across the two street elevations, which is the building's one real architectural gesture and also the main driver of value between otherwise similar apartments.

Exposure behaves the way it behaves everywhere on this corridor: Fourth Avenue is 120 feet wide and carries truck traffic, so avenue-facing rooms take the light and the noise and rear rooms take neither. Confirm which rooms face the avenue, how the private outdoor space is oriented, and whether a deeded parking unit conveys — thirty exist, they are separate tax lots, and the house rules restrict them to vehicles of resident owners and their permitted lessees.

The Argyle runs a light staffing model: a live-in resident manager rather than a doorman, with a twenty-four-hour virtual doorman system, an attended package room and cold storage for deliveries. Payroll and the intercom and security system are the two largest recurring line items after utilities in the statements on file, which is consistent with that model ; compare current common charges, reserves and assessments with similarly sized full-service apartments.

Capital posture deserves attention. At the most recent year-end on file the association held cash in the mid-five figures above $580,000, with roughly $466,000 of that in the reserve account, against sixty apartments. It ran operating deficits in both of the two years covered, with common charges held flat while expenses rose. The statements also disclose, in the standard language, that the governing documents do not require reserve accumulation, that no reserve study has been performed and that no funding plan for future major repairs exists. Read alongside the $1,000,141 of assessments levied between 2014 and 2017 and the façade loan taken in 2016, that is a building that has historically funded capital work by assessment rather than by reserve. Ask for the last three years of statements, the current reserve balance, the assessment history since 2020, and the status of the 2016 loan, which amortized to a final payment in 2023.

The association itself owns Unit 1A, acquired from the developer in August 2012 to house the resident manager, and two parking units acquired in February 2013. The building exceeds 25,000 square feet of floor area, which places it inside the city's building-emissions and energy-benchmarking regimes; ask the managing agent to state the Local Law 97 position in writing.

Purchaser review: Standard condominium right of first refusal — a waiver application rather than a board interview. All common charges must be current before the waiver is considered.

Leasing: Permitted, subject to the board's right of first refusal, with a $500 fee on each lease and each renewal. The sales application acknowledgment also requires prior written board consent to lease the unit or to permit non-family members to reside in it; confirm the current practice with the managing agent before underwriting an investment purchase.

Pied-à-terre and part-time use: Contemplated — the sales application asks purchasers how many days per month they will use the unit.

LLC, trust and foreign purchasers: Not documented; confirm in the declaration, bylaws and house rules. Purchases are subject to the right of first refusal.

Financing: Not documented; confirm in the declaration, bylaws and house rules.

Pets: One dog of 40 pounds or less, plus cats, caged birds and fish, with written board or managing-agent consent; two pets maximum without further consent.

House rules of note: Eighty percent of each room's floor area must be carpeted; terraces may not be enclosed, painted or planted beyond a hundred-pound total; no barbecuing except in designated areas; air-conditioning installations require board approval; storage lockers are for normal household items only.

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 $1,220/sf (floor-adjusted) across 4 sales. Floor-adjusted means each sale is restated to a constant mix of floors, so the figure can differ from the plain median of the sales listed above. Median listing discount 0.0% from the last ask.

Sales sourced from NYC Department of Finance recorded transfers (BBL 3-00992-7501; 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.

Underwrite the taxes on the current bill, not on a comparable. The 421-a benefit is gone. Run True Monthly Carrying Cost on the specific unit and then run the same exercise on any abated alternative you are considering.

Read the capital history before the offering plan. Three assessments totalling just over $1 million between 2014 and 2017, a façade loan in 2016, and a full window replacement program are the substance of this building's first fifteen years. Ask what remains, what is planned, and what the current reserve is against sixty apartments.

Confirm what conveys. Parking is a separate condominium unit. So is storage in some cases. Do not assume either follows the apartment.

The flood position is a genuine positive here. The lot is outside the mapped special flood hazard area, which is not true of the canal-adjacent blocks two avenues west. Say so, and document it.

Get ahead of the tax question. A buyer comparing your monthly to an abated building will see a higher number without understanding why. Present the full carrying cost, and present the fact that there is no phase-out ahead — an unabated line is a known quantity.

Lead with the roof and amenities. The building has a landscaped roof deck, parking, storage, in-unit laundry and a virtual doorman with current common charges to be compared against matched full-service apartments.

Assemble the capital record in advance — statements, assessment history, reserve balance, façade and window documentation, Local Law 97 position. A prepared answer on the 2014–2017 assessments is worth more than a deflected one.

If you're considering The Argyle, also evaluate:

• 343 4th Avenue (Novo) — the first large building the 2003 rezoning produced on the avenue; the closest vintage and scale comparison
• 500 4 Avenue — the 156-unit 2010 Fourth Avenue condominium to the south; the amenity-forward alternative of the same cycle
• 575 Fourth Avenue — the newer, larger corridor condominium; the current-cycle comparison
• 243 4th Avenue (Parlour) — nineteen half-floor and full-floor homes on the avenue; the small-building, large-apartment alternative
• 58 Saint Marks Place — 100-unit new-development condominium at the Gowanus–Boerum Hill edge
• 10 Nevins Street (The Brooklyn Grove) — the large full-amenity condominium north of the canal
• Sackett Union (291 Union Street) — Carroll Gardens–Gowanus new development; the design-led alternative closer to the canal
• 345 Carroll Street — 32-unit boutique condominium toward the canal
• 445 5th Avenue (The Slope on Fifth) — new-construction Park Slope condominium one avenue east
• 420 12th Street (Ansonia Court) — the loft-conversion cooperative in the South Slope; the large-apartment alternative in a different tenure