Office building with commercial space · Flatiron, Manhattan

235 Park Avenue South

New York, NY 10003

235 Park Avenue South is a 12-floor office building with commercial space in Flatiron, Manhattan, built in 1921, with about 59,000 square feet of office space according to city records.

Also at 101-103 East 19th Street and 235-237 Park Avenue South.

Office space
59K SF
Floors
12
Year built
1921
Zoning
C6-4A

The 66th largest of the 75 office buildings we track in Flatiron. Compare it with 6 neighbors

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Compared with its neighbors

How 235 Park Avenue South compares

Next to the 6 nearest large office buildings, all within a 1 minute walk, 235 Park Avenue South is the smallest by office floor area. Built in 1921, it is the newest of them. Its estimated property tax, about $19.23 a square foot of floor area before abatements, is below the neighbors' median of $20.63.

235 Park Avenue South and the 6 nearest large office buildings: size, floors, year built, estimated property tax per square foot and last sale
BuildingOffice spaceFloorsBuiltTax / SFLast sale
235 Park Avenue SouthThis building59K SF121921$19.23n/a
233 Park Avenue South1 min walk137K SF121909$20.74n/a
225 Park Avenue South1 min walk181K SF191910$18.46n/a
242 Park Avenue South1 min walk103K SF121911$20.52n/a
251 Park Avenue South1 min walk97K SF161910$26.86Jan 2014, $25M
230 Park Avenue South1 min walk311K SF131900$23.58Sep 2007, $229M
257 Park Avenue South1 min walk190K SF201913$18.83n/a
The 66th largest of the 75 office buildings we track in Flatiron: see the full list

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
101-103 East 19th Street; 235-237 Park Avenue South
ZIP code
10003
Building type
Office building with commercial space (city class O6)
Total floor area
67,376 SF
Commercial floor area
67,376 SF
Office
58,749 SF
Retail
8,627 SF
Height
12 floors
Average floor
About 5,600 SF (floor area divided by floors)
Year built
1921
Last major alteration
1987
Lot area
6,900 SF
Zoning district
C6-4A
Built FAR
9.76
Max commercial FAR
10
Tax lot (BBL)
1008750001

Nearest subway

  • 23 St-Baruch College3 min walk · Accessible station
  • 14 St-Union Sq4 min walk · Accessible station
  • 23 St5 min walk · Not accessible

Nearby large buildings

All 31 large office buildings on Park Avenue South

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

The Department of Finance lists 235 PARK AVENUE SOUTH, LLC as the owner of record. For tax year 2026/27 the city values 235 Park Avenue South at $32 million and assesses it at $14.4 million. After phase-ins and exemptions its taxable value is $11.9 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 $1.3 million a year before abatements, roughly $19.23 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
235 PARK AVENUE SOUTH, LLC
Tax class
Class 4 (commercial and industrial)
City market value
$32,030,000
Land market value
$6,710,000
Assessed value
$14,413,500
Taxable value (phased in)
$11,940,903
Estimated yearly tax
About $1.3 million
Tax per SF of floor area
About $19.23

City market value by tax year

  • 2022/23$23.4 million
  • 2023/24$23.8 million
  • 2024/25$24.8 million
  • 2025/26$28 million
  • 2026/27$32 million

Market value rose 37% from 2022/23 ($23.4 million) to 2026/27.

How Flatiron compares: property tax per SF across NYC neighborhoods

Source: 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 2026-10-02; 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

235 Park Avenue South reported an ENERGY STAR score of 37 out of 100 for 2024 in its Local Law 84 benchmarking filing. Under Local Law 33 that score earns a D (under 55). Its site energy use came to 150.7 kBtu per square foot, 18% above the national median of 127.9 for a similar property. Its greenhouse gas emissions were about 1,199 metric tons of CO2e (12.74 kg per square foot).

ENERGY STAR score (2024)
37 of 100
Grade this score earns (Local Law 33)
D (under 55)
Property type (Portfolio Manager)
Office
Site energy use intensity
150.7 kBtu/SF
National median for the type
127.9 kBtu/SF
Greenhouse gas emissions
1,199 t CO2e
Emissions per SF
12.74 kg CO2e
Floor area in the filing
94,140 SF

ENERGY STAR score by year

  • 202218 (D)
  • 202324 (D)
  • 202437 (D)

Energy sources in 2024

  • Electricity41%
  • Natural gas31%
  • Fuel oil27%

Share of the energy used on site, as filed.

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

In the 12 months to September 2026, the Department of Buildings issued first permits for 3 jobs at 235 Park Avenue South. In the last two years, interior work was permitted on 12 floors (floors 1 to 12). The newest build-out, on floor 6, was first permitted in April 2026 (sprinklers; filed cost estimate $13,000). A sidewalk shed permit here is active until November 10, 2026.

New jobs, last 12 months
3
Initial permits, last 12 months
3
Newest job first permitted
June 2026
Interior build-outs, last 24 months
4
Floors with interior work, last 24 months
1 to 12
Facade and sidewalk jobs, last 24 months
3
Sidewalk shed permit
Active until Nov 10, 2026

Recent build-outs

  • Floor 6April 2026Sprinklers; est. $13,000
  • Floor 2February 2026Construction; est. $15,000; signed off
  • Floors 1 to 12August 2025Construction; est. $9,000
  • Floor 6May 2025Construction, Mechanical; est. $33,000

New jobs by year

  • 20210
  • 20223
  • 20230
  • 20240
  • 20254
  • 2026 to date3

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 Flatiron

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 Flatiron yet. These labeled examples show what tenants post. List a space in 235 Park Avenue South and we match it against every new one automatically.

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Questions about 235 Park Avenue South

How big is 235 Park Avenue South?

235 Park Avenue South has about 67,000 square feet of floor area in total, including 59,000 square feet of office and 9,000 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 235 Park Avenue South built?

City records list 1921 as the year built, with a major alteration recorded in 1987. The building is 12 floors tall.

What other addresses does 235 Park Avenue South have?

City records list 101-103 East 19th Street and 235-237 Park Avenue South on the same tax lot (BBL 1008750001) as 235 Park Avenue South. A space listed on Leasemark at any of these addresses shows up on this page.

What is the ZIP code of 235 Park Avenue South?

235 Park Avenue South is in ZIP code 10003, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 235 Park Avenue South, New York, NY 10003, in Flatiron.

What is the zoning at 235 Park Avenue South?

The lot is in the C6-4A zoning district. PLUTO lists a built floor area ratio (FAR) of 9.76 and a maximum commercial FAR of 10 for this lot.

What subway station is closest to 235 Park Avenue South?

The closest subway station to 235 Park Avenue South is 23 St-Baruch College (the 6 train), about 850 feet away in a straight line, roughly 3 minutes on foot. The MTA lists it as an accessible station. Also nearby: 14 St-Union Sq (the 4, 5, 6, L, N, Q, R and W trains), 4 min walk; 23 St (the R and W trains), 5 min walk. Walking times are straight-line estimates; the street route is longer.

Who owns 235 Park Avenue South?

The NYC Department of Finance's 2026/27 assessment roll lists 235 PARK AVENUE SOUTH, LLC as the owner of record of 235 Park Avenue South (BBL 1008750001). 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 235 Park Avenue South?

235 Park Avenue South reported an ENERGY STAR score of 37 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 37 earns a D. 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 150.7 kBtu per square foot, 18% above the national median of 127.9 for a similar property. Its greenhouse gas emissions were about 1,199 metric tons of CO2e (12.74 kg per square foot).

Is there construction at 235 Park Avenue South?

In the 12 months to September 2026, the Department of Buildings issued first permits for 3 jobs at 235 Park Avenue South. In the last two years, interior work was permitted on 12 floors (floors 1 to 12). The newest build-out, on floor 6, was first permitted in April 2026 (sprinklers; filed cost estimate $13,000). A sidewalk shed permit here is active until November 10, 2026. These are the Department of Buildings' DOB NOW work permits for tax lot 1008750001. 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 235 Park Avenue South?

The Department of Finance's 2026/27 assessment roll lists a taxable value of $11.9 million for 235 Park Avenue South. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $1.3 million a year, roughly $19.23 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1008750001 show the actual bill.

What is the assessed value of 235 Park Avenue South?

For tax year 2026/27, the NYC Department of Finance puts the market value of 235 Park Avenue South at $32 million ($6.71 million of it land) and its assessed value at $14.4 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 37% from 2022/23 ($23.4 million) to 2026/27.

Is there office space for lease at 235 Park Avenue South?

No space at 235 Park Avenue South 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.

1,677 buildings from city records

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