Commercial condominium · Midtown, Manhattan
666 Fifth Avenue
New York, NY 10103
666 Fifth Avenue is a 40-floor commercial condominium in Midtown, Manhattan, built in 1958, with about 1.2 million square feet of office space according to city records.
Also known as 660 Fifth Avenue. Formerly the Tishman Building. Also at 656-670 Fifth Avenue, 5-15 West 52nd Street and 6-14 West 53rd Street.
- Office space
- 1.2M SF
- Floors
- 40
- Year built
- 1958
- Zoning
- C5-2.5
The 23rd largest of the 351 office buildings we track in Midtown. Compare it with 6 neighbors
No space at 666 Fifth 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. Nothing free right now? Get tenant alerts for Midtown and hear the moment a tenant posts a requirement there. Manage or lease this building? Claim this page.
Print a one-page profile of this building for a tour book or a client proposal.
Compared with its neighbors
How 666 Fifth Avenue compares
Next to the 6 nearest large office buildings, all within a 1 minute walk, 666 Fifth Avenue is the largest by office floor area. It went up in 1958; the median neighbor dates from 1943. Its estimated property tax, about $33.15 a square foot of floor area before abatements, is below the neighbors' median of $42.23.
| Building | Office space | Floors | Built | Tax / SF | Last sale |
|---|---|---|---|---|---|
| 666 Fifth Avenue | 1.2M SF | 40 | 1958 | $33.15 | n/a |
| 650 Fifth Avenue | 271K SF | 36 | 1977 | $35.33 | Mar 2026, $435M |
| 25 West 52nd Street | 46K SF | 16 | 1989 | $1.53 | n/a |
| Esso Building, 15 West 51st Street | 544K SF | 33 | 1947 | $21.07 | n/a |
| 640 Fifth Avenue | 210K SF | 21 | 1940 | $66.80 | n/a |
| 655 Fifth Avenue | 39K SF | 9 | 1912 | $83.76 | Oct 2010, $71M |
| 659 Fifth Avenue | 61K SF | 8 | 1912 | $49.12 | 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 35,000 SF of the building's main use. Walking times are straight-line estimates.
NYC tax lot records
Building facts
- Also known as
- 660 Fifth Avenue
- Formerly known as
- Tishman Building
- Other addresses
- 656-670 Fifth Avenue; 5-15 West 52nd Street; 6-14 West 53rd Street
- ZIP code
- 10103
- Building type
- Commercial condominium (city class RC)
- Total floor area
- 1,341,058 SF
- Commercial floor area
- 1,341,058 SF
- Office
- 1,246,547 SF
- Retail
- 94,511 SF
- Height
- 40 floors
- Average floor
- About 33,500 SF (floor area divided by floors)
- Year built
- 1958
- Lot area
- 61,755 SF
- Zoning district
- C5-2.5
- Built FAR
- 21.72
- Max commercial FAR
- 12
- Tax lot (BBL)
- 1012687502
Nearest subway
- 5 Av/53 St
- 57 St
- 47-50 Sts-Rockefeller Ctr
Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-10-16; addresses from the Property Address Directory (PAD) 26b; other name and former name checked against Wikipedia, 660 Fifth Avenue; 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 storefront registry (Local Law 157)
Storefronts and vacancy
Owners registered 19 storefronts at 666 Fifth Avenue for December 31, 2025, the newest annual filing the city has published, and 3 of them stood vacant that day. At least one storefront here has been reported vacant at the end of every year since 2019.
- Storefronts registered for December 31, 2025
- 19
- Vacant that day
- 3
- Share vacant here
- 15.8%
- Share vacant across Midtown
- 14.3%
- Share vacant along Fifth Avenue
- 14.0%
- Share vacant citywide
- 9.2%
- Condominium tax lots that filed
- 3
Vacant on December 31, by year
Own or lease out a storefront at 666 Fifth Avenue? Listing it is free, and it is matched against every active requirement for retail space in Midtown the day it goes up.
Source: NYC Department of Finance, Storefronts Reported Vacant or Not (Local Law 157), annual filings for 2019 to 2025, pulled 2026-10-16. Owners of buildings with ground- or second-floor storefronts register each one every year with its status on December 31; counts are by tax lot, summed over the condominium's unit lots that filed, as the owners filed them. The 2025 filing was due June 1, 2026, so a storefront vacant then may have been leased since. A vacant storefront is not always on the market, and none here is listed on Leasemark unless it shows above.
NYC Department of Finance records
Owner, property tax and assessed value
666 Fifth Avenue is a condominium of 5 tax lots. BSREP 111 NERO FIFTH AVENUE, one of 4 owners of record on the roll, owns the units that make up 82% of its market value. For tax year 2026/27 the city values 666 Fifth Avenue at $999.2 million and assesses it at $449.6 million. After phase-ins and exemptions its taxable value is $409.9 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 $44.5 million a year before abatements, roughly $33.15 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.
- Largest unit owner
- BSREP 111 NERO FIFTH AVENUE (82% of market value)
- Tax class
- Class 4 (commercial and industrial)
- City market value
- $999,157,000
- Land market value
- $191,000,000
- Assessed value
- $449,620,651
- Taxable value (phased in)
- $409,865,829
- Estimated yearly tax
- About $44.5 million
- Tax per SF of floor area
- About $33.15
- Condominium tax lots
- 5
- Owners of record
- 4
City market value by tax year
Manage or lease this building? Claim this page. Requests are reviewed by hand.
How to find who owns any NYC buildingSource: NYC Department of Finance, Property Valuation and Assessment Data (2026/27 roll, summed over 5 condominium tax lots; 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 666 Fifth Avenue? List a space here free and we match it against every active requirement. Renting it out yourself? Read the landlord's checklist.
SEC filings (EDGAR)
Companies with offices here
2 public companies give 666 Fifth Avenue as their office address in SEC filings.
Public companies
Source: U.S. Securities and Exchange Commission, EDGAR, Financial Statement Data Sets (2025 Q4 to 2026 Q3) and Form 13F Data Sets (through August 2026), pulled 2026-10-24; names as filed. The address is the one each company reports to the SEC. This is not a tenant roster: private companies and most smaller firms do not file with the SEC, a company can report a building it owns, and an address can trail a move by a quarter. Care-of addresses, blank check companies and asset-backed issuers are left out.
Have space to sublease at 666 Fifth Avenue? List it free and we match it against every active requirement.
NYC energy benchmarking (Local Law 84)
Energy score, grade and emissions
666 Fifth Avenue reported an ENERGY STAR score of 78 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 43.8 kBtu per square foot, 33% below the national median of 65.8 for a similar property. Its greenhouse gas emissions were about 6,056 metric tons of CO2e (4.56 kg per square foot).
- ENERGY STAR score (2024)
- 78 of 100
- Grade this score earns (Local Law 33)
- B (70 to 84)
- Property type (Portfolio Manager)
- Office
- Site energy use intensity
- 43.8 kBtu/SF
- National median for the type
- 65.8 kBtu/SF
- Greenhouse gas emissions
- 6,056 t CO2e
- Emissions per SF
- 4.56 kg CO2e
- Floor area in the filing
- 1,329,229 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.
NYC Department of Buildings permits
Work permits and build-outs
In the 12 months to October 2026, the Department of Buildings issued first permits for 17 jobs at 666 Fifth Avenue. In the last two years, interior work was permitted on 38 floors (floors 1 to 15, 17 to 26 and 28 to 40, the cellar, the mezzanine and the sub-cellar). The newest build-out, on floor 1, was first permitted in October 2026 (construction; filed cost estimate $35,000). A sidewalk shed permit here is active until November 17, 2026.
- New jobs, last 12 months
- 17
- Initial permits, last 12 months
- 47
- Newest job first permitted
- October 2026
- Interior build-outs, last 24 months
- 39
- Floors with interior work, last 24 months
- 1 to 15, 17 to 26 and 28 to 40, cellar, mezzanine, sub-cellar
- Facade and sidewalk jobs, last 24 months
- 3
- Sidewalk shed permit
- Active until Nov 17, 2026
Recent build-outs
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 2026-10-24 (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 office space listed in Midtown yet
The closest real space on Leasemark is below. Own or broker space at 666 Fifth Avenue? List it free: it shows on this page and is matched against every active requirement the day it goes up.
Real space close by
Listed now by its owner or broker. Open it and tap I'm interested to ask the lister for an intro; contact details are shared once both sides accept.
Next door, in the Upper East Side
783 Madison 4th Floor
Before you sign
Plain-English guides to square footage, rent and lease terms in New York, and free calculators to run your own numbers.
How much is commercial rent in NYC? Per square foot, by borough
What NYC office, retail and industrial buildings collect per square foot in each borough, from the city's own filings, with the monthly math and the costs on top of rent.
Good guy guarantee in NYC commercial leases
How a good guy guarantee works in a NYC commercial lease: what it covers, how the guarantor gets released, what to negotiate and the 2025 surrender ruling.
How much office space do you need per employee in 2026
About 150 to 260 rentable SF per employee in NYC when everyone comes in, less with shared desks: tables by team size and layout, then how to size from your busiest day.
- Free calculator
Office space calculator
How many square feet your team needs, from headcount and layout to a rentable range.
- Free calculator
Commercial rent calculator
Turn a price per square foot into monthly and yearly rent, with increases, free rent and net effective rent.
- Free calculator
TI allowance calculator
A landlord's build-out allowance in dollars, what it covers of your budget and what the rest adds to the rent.
- Free calculator
Commercial Rent Tax calculator
Whether a Manhattan lease owes the city's Commercial Rent Tax, and roughly how much a year.
Questions about 666 Fifth Avenue
What is the address of 660 Fifth Avenue?
660 Fifth Avenue is at 666 Fifth Avenue, New York, NY 10103, in Midtown. It was formerly known as the Tishman Building.
How big is 666 Fifth Avenue?
666 Fifth Avenue has about 1.3 million square feet of floor area in total, including 1.2 million square feet of office and 95,000 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 666 Fifth Avenue built?
City records list 1958 as the year built. The building is 40 floors tall.
What other addresses does 666 Fifth Avenue have?
City records list 656-670 Fifth Avenue, 5-15 West 52nd Street and 6-14 West 53rd Street on the same tax lot (BBL 1012687502) as 666 Fifth Avenue. A space listed on Leasemark at any of these addresses shows up on this page.
What is the ZIP code of 666 Fifth Avenue?
666 Fifth Avenue is in ZIP code 10103, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 666 Fifth Avenue, New York, NY 10103, in Midtown.
What is the zoning at 666 Fifth Avenue?
The lot is in the C5-2.5 zoning district. PLUTO lists a built floor area ratio (FAR) of 21.72 and a maximum commercial FAR of 12 for this lot.
What subway station is closest to 666 Fifth Avenue?
The closest subway station to 666 Fifth Avenue is 5 Av/53 St (the E and F trains), about 400 feet away in a straight line, roughly 2 minutes on foot. Also nearby: 57 St (the M train), 5 min walk; 47-50 Sts-Rockefeller Ctr (the B, D, F and M trains), 5 min walk. Walking times are straight-line estimates; the street route is longer.
Who owns 666 Fifth Avenue?
666 Fifth Avenue is a condominium of 5 tax lots. BSREP 111 NERO FIFTH AVENUE, one of 4 owners of record on the roll, owns the units that make up 82% of its market value. That is from the NYC Department of Finance's 2026/27 assessment roll (BBL 1012687502). Deeds and mortgages for each unit are public in ACRIS, the city's property records system.
Who are the tenants at 666 Fifth Avenue?
Leasemark does not have the building's tenant roster, but SEC filings name companies with offices at 666 Fifth Avenue. 2 public companies report the address as their principal executive office: MACQUARIE ENERGY TRANSITION INFRASTRUCTURE FUND, L.P.; and MACQUARIE INFRASTRUCTURE FUND, L.P.. Private companies do not file with the SEC, so the full list of tenants is longer, and a company can also report a building it owns.
What is the energy grade of 666 Fifth Avenue?
666 Fifth Avenue reported an ENERGY STAR score of 78 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 78 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 43.8 kBtu per square foot, 33% below the national median of 65.8 for a similar property. Its greenhouse gas emissions were about 6,056 metric tons of CO2e (4.56 kg per square foot).
Is there construction at 666 Fifth Avenue?
In the 12 months to October 2026, the Department of Buildings issued first permits for 17 jobs at 666 Fifth Avenue. In the last two years, interior work was permitted on 38 floors (floors 1 to 15, 17 to 26 and 28 to 40, the cellar, the mezzanine and the sub-cellar). The newest build-out, on floor 1, was first permitted in October 2026 (construction; filed cost estimate $35,000). A sidewalk shed permit here is active until November 17, 2026. These are the Department of Buildings' DOB NOW work permits for tax lot 1012687502. 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 666 Fifth Avenue?
The Department of Finance's 2026/27 assessment roll lists a taxable value of $409.9 million for 666 Fifth Avenue (the sum of its 5 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 $44.5 million a year, roughly $33.15 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1012687502 show the actual bill.
What is the assessed value of 666 Fifth Avenue?
For tax year 2026/27, the NYC Department of Finance puts the market value of 666 Fifth Avenue at $999.2 million ($191 million of it land) and its assessed value at $449.6 million, the 45% of market value the city assesses for Class 4 property. The city's market value held steady from 2025/26 to 2026/27.
Are there vacant storefronts at 666 Fifth Avenue?
Owners registered 19 storefronts at 666 Fifth Avenue for December 31, 2025, the newest annual filing the city has published, and 3 of them stood vacant that day. At least one storefront here has been reported vacant at the end of every year since 2019. These are the owners' filings with the Department of Finance under Local Law 157, so a storefront vacant on December 31, 2025 may have been leased since. Owners and brokers can list a storefront on Leasemark for free.
Is there office space for lease at 666 Fifth Avenue?
No space at 666 Fifth Avenue is listed on Leasemark right now. Nearby on Leasemark: office space for lease at 783 Madison 4th Floor in the Upper East Side (994 SF, $66.40/SF/yr). Owners and brokers can list space here for free, and tenants can post a requirement to be matched when space opens up.
2,723 buildings from city records
Look up another building
Size, owner of record and property tax, plus the last sale and energy grade where the city has them, for every large office, retail and industrial building we track. Type any address on the lot (like 350 Fifth Avenue), a building name, a street or a neighborhood.
Midtown
Transit hubs in Midtown
- B D F M at 42 St-Bryant Pk
- 7 at 5 Av
- N Q R W at Times Sq