Want · Office
Law firm relocation near Grand Central
Posted by a tenant rep broker · Legal
- Where
- Grand Central, Midtown
- Size
- 7,000 to 10,000 SF
- Budget
- to $110/SF
- Move in
- May 2027
24/7 accessADA accessible
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Office condominium · Midtown, Manhattan
866 Second Avenue
New York, NY 10017
866 Second Avenue is a 15-floor office condominium in Midtown, Manhattan, built in 1970, with about 71,000 square feet of office space according to city records.
Also at 2 Dag Hammarskjold Plaza and 864-868 Second Avenue.
- Office space
- 71K SF
- Floors
- 15
- Year built
- 1970
- Zoning
- C1-9
The 268th largest of the 315 office buildings we track in Midtown. Compare it with 6 neighbors
No space at 866 Second Avenue is listed on Leasemark yet. Own or broker space here? List it free and it is matched against every active requirement the day it goes up, or import a spreadsheet of up to 50 spaces at once.
Compared with its neighbors
How 866 Second Avenue compares
Next to the 6 nearest large office buildings, all within a 2 minute walk, 866 Second Avenue ranks 6th of 7 by office floor area. It went up in 1970; the median neighbor dates from 1929. Its estimated property tax, about $2.22 a square foot of floor area before abatements, is below the neighbors' median of $15.59.
| Building | Office space | Floors | Built | Tax / SF | Last sale |
|---|---|---|---|---|---|
| 866 Second Avenue | 71K SF | 15 | 1970 | $2.22 | n/a |
| 305 East 46th Street | 154K SF | 16 | 1928 | $25.54 | Nov 2019, $147M |
| 315 East 46th Street | 50K SF | 9 | 2018 | Exempt | n/a |
| 305 East 47th Street | 125K SF | 14 | 1928 | $3.46 | n/a |
| One Dag Hammarskjöld Plaza, 885 Second Avenue | 704K SF | 48 | 1971 | $15.59 | Jun 2026, $265M |
| 235 East 45th Street | 178K SF | 16 | 1929 | $17.38 | n/a |
| 304 East 45th Street | 232K SF | 17 | 1929 | $0.32 | n/a |
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); ACRIS for the last deed that moved the whole lot for a real price (a price for several lots is their combined price; condominiums sell by the unit and show n/a). Large means at least 50,000 SF of the building's main use. Walking times are straight-line estimates.
NYC tax lot records
Building facts
- Other addresses
- 2 Dag Hammarskjold Plaza; 864-868 Second Avenue
- ZIP code
- 10017
- Building type
- Office condominium (city class RB)
- Total floor area
- 71,322 SF
- Commercial floor area
- 71,322 SF
- Office
- 71,322 SF
- Height
- 15 floors
- Average floor
- About 4,800 SF (floor area divided by floors)
- Year built
- 1970
- Last major alteration
- 1994
- Lot area
- 5,625 SF
- Zoning district
- C1-9
- Built FAR
- 12.68
- Max commercial FAR
- 2
- Tax lot (BBL)
- 1013397501
Nearest subway
- Grand Central-42 St
- 51 St
- 5 Av/53 St
Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-09-30; addresses from the Property Address Directory (PAD) 26b; subway stations from the MTA Subway Stations dataset, pulled 2026-10-02. 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
866 Second Avenue is a condominium of 19 tax lots with 9 owners of record, none holding half of its market value. For tax year 2026/27 the city values 866 Second Avenue at $27.9 million and assesses it at $12.5 million. After phase-ins and exemptions its taxable value is $1.46 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 $158,044 a year before abatements, roughly $2.22 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.
- Tax class
- Class 4 (commercial and industrial)
- City market value
- $27,881,999
- Land market value
- $4,399,997
- Assessed value
- $12,546,907
- Taxable value (phased in)
- $12,435,081
- Exemptions
- $10,978,183
- Estimated yearly tax
- About $158,044
- Tax per SF of floor area
- About $2.22
- Condominium tax lots
- 19
- Owners of record
- 9
City market value by tax year
Source: NYC Department of Finance, Property Valuation and Assessment Data (2026/27 roll, summed over 19 condominium tax lots; owner names as the roll records them, which cuts some long names short), pulled 2026-10-02; 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.
NYC energy benchmarking (Local Law 84)
Energy score, grade and emissions
866 Second Avenue reported an ENERGY STAR score of 63 out of 100 for 2024 in its Local Law 84 benchmarking filing. Under Local Law 33 that score earns a C (55 to 69). Its site energy use came to 98.7 kBtu per square foot, 17% below the national median of 118.8 for a similar property. Its greenhouse gas emissions were about 769 metric tons of CO2e (8.48 kg per square foot).
- ENERGY STAR score (2024)
- 63 of 100
- Grade this score earns (Local Law 33)
- C (55 to 69)
- Property type (Portfolio Manager)
- Office
- Site energy use intensity
- 98.7 kBtu/SF
- National median for the type
- 118.8 kBtu/SF
- Greenhouse gas emissions
- 769 t CO2e
- Emissions per SF
- 8.48 kg CO2e
- Floor area in the filing
- 90,605 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 2026-10-02; 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.
NYC Department of Buildings permits
Work permits and build-outs
The Department of Buildings issued no permits for new jobs at 866 Second Avenue in the 12 months to September 2026; the last one was first permitted in October 2022.
- New jobs, last 12 months
- 0
- Initial permits, last 12 months
- 0
- Newest job first permitted
- October 2022
- Interior build-outs, last 24 months
- 0
New jobs by year
Build-outs across MidtownWhere NYC offices are being built out
Source: NYC Department of Buildings, DOB NOW: Build Approved Permits, pulled 2026-10-02 (permits issued through 2026-09-30). 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.
Office space nearby in Midtown
Nothing is listed nearby yet. The labeled examples below show how a space appears; they are not on the market.
What a requirement here looks like
No live requirements for office space in Midtown yet. These labeled examples show what tenants post. List a space in 866 Second Avenue and we match it against every new one automatically.
Want · Office
Hedge fund, Hudson Yards or Plaza
Posted by a tenant rep broker · Finance
- Where
- Hudson Yards, Midtown
- Size
- 15,000 to 22,000 SF
- Budget
- to $140/SF
- Move in
- Jul 2027
24/7 access
Owners: got a fit?I have a fit
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Questions about 866 Second Avenue
How big is 866 Second Avenue?
866 Second Avenue has about 71,000 square feet of floor area in total, including 71,000 square feet of office, according to NYC PLUTO 26v2. These are the city's estimates for the whole building, not space that is available.
When was 866 Second Avenue built?
City records list 1970 as the year built, with a major alteration recorded in 1994. The building is 15 floors tall.
What other addresses does 866 Second Avenue have?
City records list 2 Dag Hammarskjold Plaza and 864-868 Second Avenue on the same tax lot (BBL 1013397501) as 866 Second Avenue. A space listed on Leasemark at any of these addresses shows up on this page.
What is the ZIP code of 866 Second Avenue?
866 Second Avenue is in ZIP code 10017, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 866 Second Avenue, New York, NY 10017, in Midtown.
What is the zoning at 866 Second Avenue?
The lot is in the C1-9 zoning district. PLUTO lists a built floor area ratio (FAR) of 12.68 and a maximum commercial FAR of 2 for this lot.
What subway station is closest to 866 Second Avenue?
The closest subway station to 866 Second Avenue is Grand Central-42 St (the 4, 5, 6, 7 and S trains), about 0.3 miles away in a straight line, roughly 7 minutes on foot. The MTA lists it as an accessible station. Also nearby: 51 St (the 6, E and F trains, connected to Lexington Av/53 St), 7 min walk; 5 Av/53 St (the E and F trains), 12 min walk. Walking times are straight-line estimates; the street route is longer.
Who owns 866 Second Avenue?
866 Second Avenue is a condominium of 19 tax lots with 9 owners of record, none holding half of its market value. That is from the NYC Department of Finance's 2026/27 assessment roll (BBL 1013397501). Deeds and mortgages for each unit are public in ACRIS, the city's property records system.
What is the energy grade of 866 Second Avenue?
866 Second Avenue reported an ENERGY STAR score of 63 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 63 earns a C. 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 98.7 kBtu per square foot, 17% below the national median of 118.8 for a similar property. Its greenhouse gas emissions were about 769 metric tons of CO2e (8.48 kg per square foot).
Is there construction at 866 Second Avenue?
The Department of Buildings issued no permits for new jobs at 866 Second Avenue in the 12 months to September 2026; the last one was first permitted in October 2022. These are the Department of Buildings' DOB NOW work permits for tax lot 1013397501. 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 866 Second Avenue?
The Department of Finance's 2026/27 assessment roll lists a taxable value of $1.46 million for 866 Second Avenue (the sum of its 19 condominium tax lots). At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $158,044 a year, roughly $2.22 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1013397501 show the actual bill.
What is the assessed value of 866 Second Avenue?
For tax year 2026/27, the NYC Department of Finance puts the market value of 866 Second Avenue at $27.9 million ($4.4 million of it land) and its assessed value at $12.5 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 21% from 2022/23 ($23.1 million) to 2026/27.
Is there office space for lease at 866 Second Avenue?
No space at 866 Second Avenue 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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