Office building · South Bronx, Bronx
305 Rider Avenue
Bronx, NY 10451
305 Rider Avenue is a 4-floor office building in the South Bronx, Bronx, built in 1927, with about 74,000 square feet of office space according to city records.
Also at 300 Canal Place, 230 East 140th Street and 305-315 Rider Avenue.
- Office space
- 74K SF
- Floors
- 4
- Year built
- 1927
- Zoning
- M1-2
The 6th largest of the 17 office buildings we track in the South Bronx. Compare it with 6 neighbors
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Compared with its neighbors
How 305 Rider Avenue compares
Next to the 6 nearest large office buildings, all within a 9 minute walk, 305 Rider Avenue ranks 2nd of 7 by office floor area. It went up in 1927; the median neighbor dates from 1927. Its estimated property tax, about $6.30 a square foot of floor area before abatements, is below the neighbors' median of $7.91.
| Building | Office space | Floors | Built | Tax / SF | Last sale |
|---|---|---|---|---|---|
| 305 Rider Avenue | 74K SF | 4 | 1927 | $6.30 | n/a |
| 2417 3rd Avenue | 154K SF | 8 | 1928 | $7.98 | Dec 2019, $64.7M (2 lots) |
| 558 Grand Concourse | 71K SF | 4 | 1937 | $7.85 | Jul 2025, $44M |
| 332 East 149th Street | 42K SF | 8 | 1927 | $8.64 | Jun 2014, $10.5M |
| 351 East 148th Street | 38K SF | 5 | 1911 | $7.15 | n/a |
| 362 Courtlandt Avenue | 65K SF | 6 | 2020 | $9.58 | n/a |
| 14 Bruckner Boulevard | 45K SF | 3 | 1920 | $4.79 | Oct 2019, $8M |
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 addresses
- 300 Canal Place; 230 East 140th Street; 305-315 Rider Avenue
- ZIP code
- 10451
- Building type
- Office building (city class O2)
- Total floor area
- 74,044 SF
- Commercial floor area
- 74,044 SF
- Office
- 74,044 SF
- Height
- 4 floors
- Average floor
- About 18,500 SF (floor area divided by floors)
- Year built
- 1927
- Last major alteration
- 1998
- Lot area
- 18,750 SF
- Zoning district
- M1-2
- Built FAR
- 3.95
- Max commercial FAR
- 2
- Tax lot (BBL)
- 2023400072
Nearest subway
- 138 St-Grand Concourse
- 3 Av-138 St
- 149 St-Hostos
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 RIDER REALTY, LLC. as the owner of record. For tax year 2026/27 the city values 305 Rider Avenue at $10.4 million and assesses it at $4.67 million. After phase-ins and exemptions its taxable value is $4.3 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 $466,320 a year before abatements, roughly $6.30 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
- RIDER REALTY, LLC.
- Tax class
- Class 4 (commercial and industrial)
- City market value
- $10,376,000
- Land market value
- $656,000
- Assessed value
- $4,669,200
- Taxable value (phased in)
- $4,298,670
- Estimated yearly tax
- About $466,320
- Tax per SF of floor area
- About $6.30
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.
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Before you sign
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Questions about 305 Rider Avenue
How big is 305 Rider Avenue?
305 Rider Avenue has about 74,000 square feet of floor area in total, including 74,000 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 305 Rider Avenue built?
City records list 1927 as the year built, with a major alteration recorded in 1998. The building is 4 floors tall.
What other addresses does 305 Rider Avenue have?
City records list 300 Canal Place, 230 East 140th Street and 305-315 Rider Avenue on the same tax lot (BBL 2023400072) as 305 Rider Avenue. A space listed on Leasemark at any of these addresses shows up on this page.
What is the ZIP code of 305 Rider Avenue?
305 Rider Avenue is in ZIP code 10451, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The full mailing address is 305 Rider Avenue, Bronx, NY 10451, in the South Bronx.
What is the zoning at 305 Rider Avenue?
The lot is in the M1-2 zoning district. PLUTO lists a built floor area ratio (FAR) of 3.95 and a maximum commercial FAR of 2 for this lot.
What subway station is closest to 305 Rider Avenue?
The closest subway station to 305 Rider Avenue is 138 St-Grand Concourse (the 4 and 5 trains), about 750 feet away in a straight line, roughly 3 minutes on foot. Also nearby: 3 Av-138 St (the 6 train), 4 min walk; 149 St-Hostos (the 2, 4 and 5 trains), 7 min walk. Walking times are straight-line estimates; the street route is longer.
Who owns 305 Rider Avenue?
The NYC Department of Finance's 2026/27 assessment roll lists RIDER REALTY, LLC. as the owner of record of 305 Rider Avenue (BBL 2023400072). 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 are the property taxes at 305 Rider Avenue?
The Department of Finance's 2026/27 assessment roll lists a taxable value of $4.3 million for 305 Rider Avenue. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $466,320 a year, roughly $6.30 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 2023400072 show the actual bill.
What is the assessed value of 305 Rider Avenue?
For tax year 2026/27, the NYC Department of Finance puts the market value of 305 Rider Avenue at $10.4 million ($656,000 of it land) and its assessed value at $4.67 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 21% from 2022/23 ($8.57 million) to 2026/27.
Is there office space for lease at 305 Rider Avenue?
No space at 305 Rider 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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South Bronx
Transit hubs in the South Bronx
- 2 4 5 at 149 St-Hostos
- 6 at 3 Av-138 St