Office building · Midtown, Manhattan
665 Fifth Avenue
New York, NY 10022
665 Fifth Avenue is a 28-floor office building in Midtown, Manhattan, built in 2024, with about 147,000 square feet of office space according to city records.
Also at 665-671 Fifth Avenue.
- Office space
- 147K SF
- Floors
- 28
- Year built
- 2024
- Zoning
- C5-3
The 189th largest of the 351 office buildings we track in Midtown. Compare it with 6 neighbors
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Compared with its neighbors
How 665 Fifth Avenue compares
Next to the 6 nearest large office buildings, all within a 1 minute walk, 665 Fifth Avenue ranks 4th of 7 by office floor area. Built in 2024, it is the newest of them. Its estimated property tax, about $5.88 a square foot of floor area before abatements, is below the neighbors' median of $45.11.
| Building | Office space | Floors | Built | Tax / SF | Last sale |
|---|---|---|---|---|---|
| 665 Fifth Avenue | 147K SF | 28 | 2024 | $5.88 | n/a |
| 659 Fifth Avenue | 61K SF | 8 | 1912 | $49.12 | n/a |
| 10 East 53rd Street | 361K SF | 38 | 1971 | $21.82 | Aug 2026, $310M |
| 655 Fifth Avenue | 39K SF | 9 | 1912 | $83.76 | Oct 2010, $71M |
| 681 Fifth Avenue | 37K SF | 12 | 1913 | $96.55 | Dec 2005, $86M |
| 510 Madison Avenue | 283K SF | 30 | 2007 | $41.09 | n/a |
| 512 Madison Avenue | 992K SF | 43 | 1982 | $30.26 | 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
- Other address
- 665-671 Fifth Avenue
- ZIP code
- 10022
- Building type
- Office building (city class O4)
- Total floor area
- 168,537 SF
- Commercial floor area
- 168,537 SF
- Office
- 146,891 SF
- Retail
- 21,646 SF
- Height
- 28 floors
- Average floor
- About 6,000 SF (floor area divided by floors)
- Year built
- 2024
- Lot area
- 11,050 SF
- Zoning district
- C5-3
- Built FAR
- 15.25
- Max commercial FAR
- 15
- Tax lot (BBL)
- 1012880069
Nearest subway
- 5 Av/53 St
- 51 St
- 57 St
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 ROLEX REALTY COMPANY LLC as the owner of record. For tax year 2026/27 the city values 665 Fifth Avenue at $21 million and assesses it at $9.45 million. After phase-ins and exemptions its taxable value is $9.14 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 $991,385 a year before abatements, roughly $5.88 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
- ROLEX REALTY COMPANY LLC
- Tax class
- Class 4 (commercial and industrial)
- City market value
- $20,989,000
- Land market value
- $20,989,000
- Assessed value
- $9,445,050
- Taxable value (phased in)
- $9,138,870
- Estimated yearly tax
- About $991,385
- Tax per SF of floor area
- About $5.88
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; 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 665 Fifth Avenue? List a space here free and we match it against every active requirement. Renting it out yourself? Read the landlord's checklist.
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 15 jobs at 665 Fifth Avenue. In the last two years, interior work was permitted on 14 floors (floors 1 to 9, 11, 12 and 26 to 28, the cellar, the mezzanine and the sub-cellar). The newest build-out, on floor 11, was first permitted in March 2026 (construction, mechanical, plumbing, sprinklers; filed cost estimate $4,000). A sidewalk shed permit here is active until December 20, 2026.
- New jobs, last 12 months
- 15
- Initial permits, last 12 months
- 18
- Newest job first permitted
- September 2026
- Interior build-outs, last 24 months
- 3
- Floors with interior work, last 24 months
- 1 to 9, 11, 12 and 26 to 28, cellar, mezzanine, sub-cellar
- Facade and sidewalk jobs, last 24 months
- 15
- Sidewalk shed permit
- Active until Dec 20, 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 665 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
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Questions about 665 Fifth Avenue
How big is 665 Fifth Avenue?
665 Fifth Avenue has about 169,000 square feet of floor area in total, including 147,000 square feet of office and 22,000 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 665 Fifth Avenue built?
City records list 2024 as the year built. The building is 28 floors tall.
What other addresses does 665 Fifth Avenue have?
City records list 665-671 Fifth Avenue on the same tax lot (BBL 1012880069) as 665 Fifth Avenue. A space listed on Leasemark at any of these addresses shows up on this page.
What is the ZIP code of 665 Fifth Avenue?
665 Fifth Avenue is in ZIP code 10022, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 665 Fifth Avenue, New York, NY 10022, in Midtown.
What is the zoning at 665 Fifth Avenue?
The lot is in the C5-3 zoning district. PLUTO lists a built floor area ratio (FAR) of 15.25 and a maximum commercial FAR of 15 for this lot.
What subway station is closest to 665 Fifth Avenue?
The closest subway station to 665 Fifth Avenue is 5 Av/53 St (the E and F trains), about 100 feet away in a straight line, roughly 1 minute on foot. Also nearby: 51 St (the 6, E and F trains, connected to Lexington Av/53 St), 6 min walk; 57 St (the M train), 6 min walk. Walking times are straight-line estimates; the street route is longer.
Who owns 665 Fifth Avenue?
The NYC Department of Finance's 2026/27 assessment roll lists ROLEX REALTY COMPANY LLC as the owner of record of 665 Fifth Avenue (BBL 1012880069). 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.
Is there construction at 665 Fifth Avenue?
In the 12 months to October 2026, the Department of Buildings issued first permits for 15 jobs at 665 Fifth Avenue. In the last two years, interior work was permitted on 14 floors (floors 1 to 9, 11, 12 and 26 to 28, the cellar, the mezzanine and the sub-cellar). The newest build-out, on floor 11, was first permitted in March 2026 (construction, mechanical, plumbing, sprinklers; filed cost estimate $4,000). A sidewalk shed permit here is active until December 20, 2026. These are the Department of Buildings' DOB NOW work permits for tax lot 1012880069. 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 665 Fifth Avenue?
The Department of Finance's 2026/27 assessment roll lists a taxable value of $9.14 million for 665 Fifth Avenue. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $991,385 a year, roughly $5.88 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1012880069 show the actual bill.
What is the assessed value of 665 Fifth Avenue?
For tax year 2026/27, the NYC Department of Finance puts the market value of 665 Fifth Avenue at $21 million ($21 million of it land) and its assessed value at $9.45 million, the 45% of market value the city assesses for Class 4 property. The city's market value fell 78% from 2022/23 ($94.2 million) to 2026/27.
Is there office space for lease at 665 Fifth Avenue?
No space at 665 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.
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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