Office building · Garment District, Manhattan
Nelson Tower
450 Seventh Avenue, New York, NY 10123
The Nelson Tower (450 Seventh Avenue) is a 46-floor office building in the Garment District, Manhattan, built in 1930, with about 474,000 square feet of office space according to city records.
Also at 446-456 Seventh Avenue, 203-209 West 34th Street and 208 West 35th Street.
- Office space
- 474K SF
- Floors
- 46
- Year built
- 1930
- Zoning
- C6-4
The 13th largest of the 155 office buildings we track in the Garment District. Compare it with 6 neighbors
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Compared with its neighbors
How the Nelson Tower compares
Next to the 6 nearest large office buildings, all within a 1 minute walk, the Nelson Tower is the largest by office floor area. Built in 1930, it is the newest of them. Its estimated property tax, about $10.60 a square foot of floor area before abatements, is above the neighbors' median of $8.97.
| Building | Office space | Floors | Built | Tax / SF |
|---|---|---|---|---|
| Nelson Tower, 450 Seventh Avenue | 474K SF | 46 | 1930 | $10.60 |
| 212 West 35th Street | 81K SF | 16 | 1924 | $7.06 |
| 462 Seventh Avenue | 182K SF | 23 | 1925 | $11.37 |
| 224 West 35th Street | 134K SF | 17 | 1924 | $8.61 |
| 213 West 35th Street | 154K SF | 13 | 1921 | $7.76 |
| 225 West 34th Street | 441K SF | 22 | 1924 | $15.40 |
| 225 West 35th Street | 86K SF | 16 | 1924 | $9.34 |
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
- Building name
- Nelson Tower
- Other addresses
- 446-456 Seventh Avenue; 203-209 West 34th Street; 208 West 35th Street
- ZIP code
- 10123
- Building type
- Office building (city class O4)
- Total floor area
- 491,253 SF
- Commercial floor area
- 491,253 SF
- Office
- 473,503 SF
- Retail
- 17,750 SF
- Height
- 46 floors
- Average floor
- About 10,700 SF (floor area divided by floors)
- Year built
- 1930
- Last major alteration
- 1987
- Lot area
- 15,001 SF
- Zoning district
- C6-4
- Built FAR
- 32.75
- Max commercial FAR
- 10
- Tax lot (BBL)
- 1007840041
Nearest subway
- 34 St-Penn Station
- 34 St-Penn Station
- 34 St-Herald Sq
Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-10-16; addresses from the Property Address Directory (PAD) 26b; building name checked against Wikipedia, Nelson Tower; 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 7 storefronts at the Nelson Tower for December 31, 2025, the newest annual filing the city has published, and 1 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
- 7
- Vacant that day
- 1
- Share vacant here
- 14.3%
- Share vacant across the Garment District
- 13.7%
- Share vacant along Seventh Avenue
- 13.8%
- Share vacant citywide
- 9.2%
Vacant on December 31, by year
Own or lease out a storefront at 450 Seventh Avenue? Listing it is free, and it is matched against every active requirement for retail space in the Garment District 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, 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
The Department of Finance lists 450 7TH AVE ASSCTS as the owner of record. For tax year 2026/27 the city values the Nelson Tower at $106.7 million and assesses it at $48 million. After phase-ins and exemptions its taxable value is $48 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 $5.21 million a year before abatements, roughly $10.60 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
- 450 7TH AVE ASSCTS
- Tax class
- Class 4 (commercial and industrial)
- City market value
- $106,698,000
- Land market value
- $11,600,000
- Assessed value
- $48,014,100
- Estimated yearly tax
- About $5.21 million
- Tax per SF of floor area
- About $10.60
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 450 Seventh 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
One public company and one investment manager give 450 Seventh Avenue as their office address in SEC filings.
Public company
Investment manager
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.
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NYC energy benchmarking (Local Law 84)
Energy score, grade and emissions
The Nelson Tower reported an ENERGY STAR score of 85 out of 100 for 2024 in its Local Law 84 benchmarking filing. Under Local Law 33 that score earns an A (85 or higher). Its site energy use came to 49.1 kBtu per square foot, 45% below the national median of 89.3 for a similar property. Its greenhouse gas emissions were about 2,298 metric tons of CO2e (4.68 kg per square foot).
- ENERGY STAR score (2024)
- 85 of 100
- Grade this score earns (Local Law 33)
- A (85 or higher)
- Property type (Portfolio Manager)
- Office
- Site energy use intensity
- 49.1 kBtu/SF
- National median for the type
- 89.3 kBtu/SF
- Greenhouse gas emissions
- 2,298 t CO2e
- Emissions per SF
- 4.68 kg CO2e
- Floor area in the filing
- 491,253 SF
- ENERGY STAR certified
- 2013, 2014, 2023, 2024, 2025
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, the Nelson Tower comes to about 1,653 metric tons of CO2e a year under Local Law 97's coefficients, against a limit of 3,724 tons for 2024 to 2029 (44% of the limit), so it would owe no penalty. From 2030 the limit drops to 1,322 tons and the same energy use counts as about 1,033 tons, still under the limit.
- Period
- 2024 to 2029
- Emissions limit
- 3,724 t CO2e
- Estimated emissions
- 1,653 t CO2e
- Under the limit by
- 2,071 t CO2e
- Estimated penalty a year
- None
- Period
- 2030 to 2034
- Emissions limit
- 1,322 t CO2e
- Estimated emissions
- 1,033 t CO2e
- Under the limit by
- 289 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 491,253 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 450 Seventh Avenue? 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 the Nelson Tower in the 12 months to October 2026; the last one was first permitted in June 2024. A sidewalk shed permit here is active until December 30, 2026.
- New jobs, last 12 months
- 0
- Initial permits, last 12 months
- 0
- Newest job first permitted
- June 2024
- Interior build-outs, last 24 months
- 0
- Sidewalk shed permit
- Active until Dec 30, 2026
New jobs by year
Build-outs across the Garment DistrictWhere 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 the Garment District yet
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Before you sign
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Questions about Nelson Tower
How big is the Nelson Tower?
The Nelson Tower has about 491,000 square feet of floor area in total, including 474,000 square feet of office and 18,000 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 the Nelson Tower built?
City records list 1930 as the year built, with a major alteration recorded in 1987. The building is 46 floors tall.
What is the address of the Nelson Tower?
The Nelson Tower is at 450 Seventh Avenue in the Garment District, Manhattan. City records list 446-456 Seventh Avenue, 203-209 West 34th Street and 208 West 35th Street on the same tax lot (BBL 1007840041). A space listed on Leasemark at any of these addresses shows up on this page.
What is the ZIP code of 450 Seventh Avenue?
450 Seventh Avenue is in ZIP code 10123, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The Nelson Tower is at 450 Seventh Avenue, New York, NY 10123, in the Garment District.
What is the zoning at the Nelson Tower?
The lot is in the C6-4 zoning district. PLUTO lists a built floor area ratio (FAR) of 32.75 and a maximum commercial FAR of 10 for this lot.
What subway station is closest to the Nelson Tower?
The closest subway station to the Nelson Tower is 34 St-Penn Station (the 1, 2 and 3 trains), about 400 feet away in a straight line, roughly 2 minutes on foot. The MTA lists it as an accessible station. Also nearby: 34 St-Penn Station (the A, C and E trains), 3 min walk; 34 St-Herald Sq (the B, D, F, M, N, Q, R and W trains), 4 min walk. Walking times are straight-line estimates; the street route is longer.
Who owns the Nelson Tower?
The NYC Department of Finance's 2026/27 assessment roll lists 450 7TH AVE ASSCTS as the owner of record of the Nelson Tower (BBL 1007840041). Deeds and mortgages for the lot are public in ACRIS, the city's property records system.
Who are the tenants at the Nelson Tower?
Leasemark does not have the building's tenant roster, but SEC filings name companies with offices at the Nelson Tower. One public company reports the address as its principal executive office: KIDZ AI INC. (KIDZ). One investment manager files 13F holdings reports from the address: WYNNEFIELD CAPITAL INC. 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 the Nelson Tower?
The Nelson Tower reported an ENERGY STAR score of 85 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 85 earns an A. 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 49.1 kBtu per square foot, 45% below the national median of 89.3 for a similar property. Its greenhouse gas emissions were about 2,298 metric tons of CO2e (4.68 kg per square foot).
Does the Nelson Tower meet Local Law 97?
At its 2024 energy use, the Nelson Tower comes to about 1,653 metric tons of CO2e a year under Local Law 97's coefficients, against a limit of 3,724 tons for 2024 to 2029 (44% of the limit), so it would owe no penalty. From 2030 the limit drops to 1,322 tons and the same energy use counts as about 1,033 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 the Nelson Tower?
The Department of Buildings issued no permits for new jobs at the Nelson Tower in the 12 months to October 2026; the last one was first permitted in June 2024. A sidewalk shed permit here is active until December 30, 2026. These are the Department of Buildings' DOB NOW work permits for tax lot 1007840041. 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 the Nelson Tower?
The Department of Finance's 2026/27 assessment roll lists a taxable value of $48 million for the Nelson Tower. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $5.21 million a year, roughly $10.60 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1007840041 show the actual bill.
What is the assessed value of the Nelson Tower?
For tax year 2026/27, the NYC Department of Finance puts the market value of the Nelson Tower at $106.7 million ($11.6 million of it land) and its assessed value at $48 million, the 45% of market value the city assesses for Class 4 property. The city's market value fell 8% from 2022/23 ($115.7 million) to 2026/27.
Are there vacant storefronts at the Nelson Tower?
Owners registered 7 storefronts at the Nelson Tower for December 31, 2025, the newest annual filing the city has published, and 1 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 the Nelson Tower?
No space at 450 Seventh 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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Garment District
Transit hubs in the Garment District
- B D F M N Q R W at 34 St-Herald Sq
- 1 2 3 at 34 St-Penn Station