43-10 21st Street

43-10 21st Street has about 40,000 square feet of floor area in total, including 3,000 square feet of office and 37,000 square feet of industrial and storage space, according to NYC PLUTO 26v2. These are the city's estimates for the whole building, not space that is available.

City records list 1931 as the year built, with a major alteration recorded in 2016. The building is 2 floors tall.

City records list 13-08 43rd Avenue on the same tax lot (BBL 4004420018) as 43-10 21st Street. A space listed on Leasemark at any of these addresses shows up on this page.

43-10 21st Street is in ZIP code 11101, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 43-10 21st Street, Long Island City, NY 11101.

The lot is in the M1-6A zoning district. PLUTO lists a built floor area ratio (FAR) of 1.77 and a maximum commercial FAR of 8 for this lot.

The closest subway station to 43-10 21st Street is Court Sq-23 St (the E, F, 7 and G trains, connected to Court Sq), about 950 feet away in a straight line, roughly 4 minutes on foot. The MTA lists it as partly accessible. Also nearby: 21 St-Queensbridge (the M train), 6 min walk; Queensboro Plaza (the 7, N and W trains), 6 min walk. Walking times are straight-line estimates; the street route is longer.

The NYC Department of Finance's 2026/27 assessment roll lists MM 21 HOLDING LLC as the owner of record of 43-10 21st Street (BBL 4004420018). Big buildings are usually held through a company set up for that one property, so the name on the roll can differ from the landlord's brand or the managing agent. Deeds and mortgages for the lot are public in ACRIS, the city's property records system.

43-10 21st Street last sold in March 2026 for $14.5 million, according to the deed recorded with the city. 43RD AVENUE ENTERPRISES CORP. sold it to MM 21 HOLDING LLC. That comes to about $359 per square foot of floor area. The deed is ACRIS document 2026031100866001 (BBL 4004420018) in the city's property records. A sale of the company that owns a building is not recorded as a deed, so it would not show there.

43-10 21st Street's 2024 Local Law 84 benchmarking filing got no ENERGY STAR score (no single use that ENERGY STAR scores covers more than half of the floor area), and Local Law 33 letter grades come from that score, so the filing does not yield an A to D grade. Its site energy use came to 50.6 kBtu per square foot. Its greenhouse gas emissions were about 172 metric tons of CO2e (4.22 kg per square foot).

At its 2024 energy use, 43-10 21st Street comes to about 152 metric tons of CO2e a year under Local Law 97's coefficients, against a limit of 310 tons for 2024 to 2029 (49% of the limit), so it would owe no penalty. From 2030 the limit drops to 58 tons and the same energy use counts as about 124 tons, about 66 tons over, or an estimated $18,000 a year unless the building cuts its emissions. This is an estimate from the owner's 2024 benchmarking filing using the coefficients and per-use limits in the law and the Department of Buildings rule, at $268 per ton over. It is not the building's Local Law 97 report, which can count credits and deductions this estimate cannot.

In the 12 months to October 2026, the Department of Buildings issued first permits for 2 jobs at 43-10 21st Street. In the last two years, interior work was permitted on 2 floors (floors 1 and 2 and the cellar). The newest build-out, on floor 1, was first permitted in August 2026 (construction, plumbing; filed cost estimate $480,000). These are the Department of Buildings' DOB NOW work permits for tax lot 4004420018. A permit is approval to do the work; it does not say who the work is for or whether it is finished.

The Department of Finance's 2026/27 assessment roll lists a taxable value of $1.68 million for 43-10 21st Street. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $182,636 a year, roughly $4.52 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 4004420018 show the actual bill.

For tax year 2026/27, the NYC Department of Finance puts the market value of 43-10 21st Street at $4.17 million ($1.37 million of it land) and its assessed value at $1.88 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 12% from 2022/23 ($3.71 million) to 2026/27.

No space at 43-10 21st Street is listed on Leasemark right now. Owners and brokers can list space here for free, and tenants can post a requirement to be matched when space opens up.