Shopping center · Gowanus, Brooklyn
1 12 St. Extension
Brooklyn, NY 11215
1 12 St. Extension is a 5-floor shopping center in Gowanus, Brooklyn, built in 1968, with about 53,000 square feet of retail space according to city records.
Also at 1-37 12th Street Extension.
- Retail space
- 53K SF
- Floors
- 5
- Year built
- 1968
- Zoning
- M1-2
The 3rd largest of the 7 retail buildings we track in Gowanus. Compare it with 6 neighbors
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Compared with its neighbors
How 1 12 St. Extension compares
Next to the 6 nearest large retail buildings, all within a 11 minute walk, 1 12 St. Extension ranks 5th of 7 by retail floor area. It went up in 1968; the median neighbor dates from 2001. Its estimated property tax, about $7.31 a square foot of floor area before abatements, is below the neighbors' median of $8.83.
| Building | Retail space | Floors | Built | Tax / SF |
|---|---|---|---|---|
| 1 12 St. Extension | 53K SF | 5 | 1968 | $7.31 |
| 73 12th Street | 51K SF | 1 | 2003 | $6.14 |
| 118 2nd Avenue | 85K SF | 1 | 2003 | $6.24 |
| 550 Hamilton Avenue | 139K SF | 1 | 1997 | $9.73 |
| 568 Hamilton Avenue | 65K SF | 1 | 1921 | Exempt |
| 212 3rd Street | 55K SF | 1 | 2013 | $8.83 |
| 356 4th Avenue | 39K SF | 1 | 1999 | $13.10 |
Sources: NYC Department of City Planning, PLUTO 26v2 for size, floors and year built; NYC Department of Finance 2026/27 roll for tax (taxable value times the class rate, before abatements, over the whole floor area). Large means at least 35,000 SF of the building's main use. Walking times are straight-line estimates.
NYC tax lot records
Building facts
- Other address
- 1-37 12th Street Extension
- ZIP code
- 11215
- Building type
- Shopping center (city class K6)
- Total floor area
- 108,625 SF
- Commercial floor area
- 108,625 SF
- Retail
- 53,475 SF
- Height
- 5 floors
- Year built
- 1968
- Last major alteration
- 1982
- Lot area
- 86,250 SF
- Zoning district
- M1-2
- Built FAR
- 1.26
- Max commercial FAR
- 2
- Tax lot (BBL)
- 3010070172
Nearest subway
- Smith-9 Sts
- 4 Av-9 St
- Prospect Av
Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-10-16; addresses from the Property Address Directory (PAD) 26b; subway stations from the MTA Subway Stations dataset, pulled 2026-10-16. Floor areas are the city's estimates for the whole building, not available space. Walking times are straight-line estimates. How we build these pages. Something wrong on this page? Tell us.
NYC Department of Finance records
Owner, property tax and assessed value
The Department of Finance lists 12TH STREET ASSOCIATES A LLC as the owner of record. For tax year 2026/27 the city values 1 12 St. Extension at $17.4 million and assesses it at $7.84 million. After phase-ins and exemptions its taxable value is $7.32 million; at the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists) that comes to about $794,117 a year before abatements, roughly $7.31 per square foot of floor area. Commercial leases here often pass a tenant's share of tax increases over a base year through as additional rent.
- Owner of record
- 12TH STREET ASSOCIATES A LLC
- Tax class
- Class 4 (commercial and industrial)
- City market value
- $17,414,000
- Land market value
- $1,300,000
- Assessed value
- $7,836,300
- Taxable value (phased in)
- $7,320,403
- Estimated yearly tax
- About $794,117
- Tax per SF of floor area
- About $7.31
City market value by tax year
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How to find who owns any NYC buildingSource: NYC Department of Finance, Property Valuation and Assessment Data (2026/27 roll; owner names as the roll records them, which cuts some long names short), pulled 2026-10-16; tax rate from the Department of Finance tax rates page, checked 2026-09-28. The estimate is the taxable value times the class rate. It leaves out abatements, payment-in-lieu-of-taxes agreements and charges, so the actual bill can differ.
Own or manage 1 12 St. Extension? List a space here free and we match it against every active requirement. Renting it out yourself? Read the landlord's checklist.
NYC energy benchmarking (Local Law 84)
Energy score, grade and emissions
1 12 St. Extension reported an ENERGY STAR score of 84 out of 100 for 2024 in its Local Law 84 benchmarking filing. Under Local Law 33 that score earns a B (70 to 84). Its site energy use came to 50 kBtu per square foot, 35% below the national median of 76.7 for a similar property. Its greenhouse gas emissions were about 475 metric tons of CO2e (4.22 kg per square foot).
- ENERGY STAR score (2024)
- 84 of 100
- Grade this score earns (Local Law 33)
- B (70 to 84)
- Property type (Portfolio Manager)
- Retail Store
- Site energy use intensity
- 50 kBtu/SF
- National median for the type
- 76.7 kBtu/SF
- Greenhouse gas emissions
- 475 t CO2e
- Emissions per SF
- 4.22 kg CO2e
- Floor area in the filing
- 112,463 SF
ENERGY STAR score by year
Energy sources in 2024
Source: NYC Department of Buildings and Mayor's Office of Climate and Environmental Justice, NYC Building Energy and Water Data Disclosure for Local Law 84 (2024 filing), pulled 2026-10-16; grade cutoffs from the Department of Buildings energy grades page. Figures are as the owner filed them in ENERGY STAR Portfolio Manager. The grade is the one the filed score earns under the law's cutoffs; the Department of Buildings assigns the grade a building posts, which can differ.
Local Law 97 of 2019, estimated
Local Law 97 emissions limit
At its 2024 energy use, 1 12 St. Extension comes to about 388 metric tons of CO2e a year under Local Law 97's coefficients, against a limit of 932 tons for 2024 to 2029 (42% of the limit), so it would owe no penalty. From 2030 the limit drops to 284 tons and the same energy use counts as about 268 tons, still under the limit.
- Period
- 2024 to 2029
- Emissions limit
- 932 t CO2e
- Estimated emissions
- 388 t CO2e
- Under the limit by
- 544 t CO2e
- Estimated penalty a year
- None
- Period
- 2030 to 2034
- Emissions limit
- 284 t CO2e
- Estimated emissions
- 268 t CO2e
- Under the limit by
- 16 t CO2e
- Estimated penalty a year
- None
Estimated from the owner's 2024 Local Law 84 filing, which reports energy by source and floor area by use: Office 15,474 SF; Medical Office 14,582 SF; Retail Store 67,825 SF; Fitness Center/Health Club/Gym 14,582 SF. It applies the coefficients and per-use limits in Department of Buildings rule 1 RCNY 103-14 and Administrative Code 28-320.3.1.1 (as the Department lists them) and the $268 per ton penalty, checked 2026-10-04. It is not the building's Local Law 97 report: that report can count renewable energy credits, solar and storage deductions and, for 2024 and 2025, the law's occupancy group limits where higher, and penalties can be reduced for good faith efforts.
Change these numbers in the Local Law 97 calculator to see what a cut in energy use would do to the penalty.
How Local Law 97 works: who is covered, the 2030 limits and what owners, tenants and buyers should check.
Own or manage 1 12 St. Extension? List a space here free and we match it against every active requirement.
NYC Department of Buildings permits
Work permits and build-outs
The Department of Buildings issued no permits for new jobs at 1 12 St. Extension in the 12 months to October 2026; the last one was first permitted in July 2024.
- New jobs, last 12 months
- 0
- Initial permits, last 12 months
- 0
- Newest job first permitted
- July 2024
- Interior build-outs, last 24 months
- 0
New jobs by year
Build-outs across GowanusWhere NYC offices are being built out
Source: NYC Department of Buildings, DOB NOW: Build Approved Permits, pulled 2026-10-24 (permits issued through 2026-10-22). A job counts once, when its first permit is issued; renewals are not new work. A build-out groups jobs on the same floors first permitted within 120 days of each other. Costs are the estimates filed with the jobs. Jobs filed before DOB NOW (in the older BIS system) are not counted. A permit is approval to do the work; it does not say who the work is for or whether it is finished.
No retail space listed in Gowanus yet
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Before you sign
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Questions about 1 12 St. Extension
How big is 1 12 St. Extension?
1 12 St. Extension has about 109,000 square feet of floor area in total, including 53,000 square feet of retail, according to NYC PLUTO 26v2. These are the city's estimates for the whole building, not space that is available.
When was 1 12 St. Extension built?
City records list 1968 as the year built, with a major alteration recorded in 1982. The building is 5 floors tall.
What other addresses does 1 12 St. Extension have?
City records list 1-37 12th Street Extension on the same tax lot (BBL 3010070172) as 1 12 St. Extension. A space listed on Leasemark at any of these addresses shows up on this page.
What is the ZIP code of 1 12 St. Extension?
1 12 St. Extension is in ZIP code 11215, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 1 12 St. Extension, Brooklyn, NY 11215, in Gowanus.
What is the zoning at 1 12 St. Extension?
The lot is in the M1-2 zoning district. PLUTO lists a built floor area ratio (FAR) of 1.26 and a maximum commercial FAR of 2 for this lot.
What subway station is closest to 1 12 St. Extension?
The closest subway station to 1 12 St. Extension is Smith-9 Sts (the F and G trains), about 550 feet away in a straight line, roughly 2 minutes on foot. Also nearby: 4 Av-9 St (the F, G and R trains), 8 min walk; Prospect Av (the R train), 10 min walk. Walking times are straight-line estimates; the street route is longer.
Who owns 1 12 St. Extension?
The NYC Department of Finance's 2026/27 assessment roll lists 12TH STREET ASSOCIATES A LLC as the owner of record of 1 12 St. Extension (BBL 3010070172). 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.
What is the energy grade of 1 12 St. Extension?
1 12 St. Extension reported an ENERGY STAR score of 84 for calendar year 2024 in its Local Law 84 benchmarking filing. Under Local Law 33, as amended by Local Law 95 of 2019, a score of 85 or higher earns an A, 70 to 84 a B, 55 to 69 a C and under 55 a D, so 84 earns a B. The Department of Buildings assigns the grade a building posts, so the posted label can differ if a filing was corrected. Its site energy use came to 50 kBtu per square foot, 35% below the national median of 76.7 for a similar property. Its greenhouse gas emissions were about 475 metric tons of CO2e (4.22 kg per square foot).
Does 1 12 St. Extension meet Local Law 97?
At its 2024 energy use, 1 12 St. Extension comes to about 388 metric tons of CO2e a year under Local Law 97's coefficients, against a limit of 932 tons for 2024 to 2029 (42% of the limit), so it would owe no penalty. From 2030 the limit drops to 284 tons and the same energy use counts as about 268 tons, still under the limit. 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.
Is there construction at 1 12 St. Extension?
The Department of Buildings issued no permits for new jobs at 1 12 St. Extension in the 12 months to October 2026; the last one was first permitted in July 2024. These are the Department of Buildings' DOB NOW work permits for tax lot 3010070172. A permit is approval to do the work; it does not say who the work is for or whether it is finished.
What are the property taxes at 1 12 St. Extension?
The Department of Finance's 2026/27 assessment roll lists a taxable value of $7.32 million for 1 12 St. Extension. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $794,117 a year, roughly $7.31 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 3010070172 show the actual bill.
What is the assessed value of 1 12 St. Extension?
For tax year 2026/27, the NYC Department of Finance puts the market value of 1 12 St. Extension at $17.4 million ($1.3 million of it land) and its assessed value at $7.84 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 33% from 2022/23 ($13.1 million) to 2026/27.
Is there retail space for lease at 1 12 St. Extension?
No space at 1 12 St. Extension 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.
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Transit hubs in Gowanus
- F G R at 4 Av-9 St
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