521 City Island Ave Bronx
521 City Island Ave Bronx, Bronx, NY 10464
Premier City Island Development Opportunity: At 2.75 acres (120,042 SF), this lot size provides unrivaled scale for the neighborhood, allowing for a master-planned development rather than a simple infill project. The site can yield approximately 90,032 buildable SF as-of-right, with potential for up to 120,042 buildable SF as a Qualified Residential Site (485-x), Senior Housing, or commercial development. Flexible Zoning Options: The R3A / C2-2 (CD) designation permits detached single-family homes, commercial uses, or community facilities as-of-right. Expanded Marina Potential: Opportunity to leverage 149,928 SF of land under water via recorded riparian rights to expand the existing 80-slip marina to a ~120-slip configuration, providing a significant value-add for a waterfront destination or private residential boat club. Currently the Marina Gross Income is $392,000. City Island serves as a premier residential destination, offering a unique waterfront lifestyle that is highly sought after but supply constrained. Located near local bus routes (Bx29) that connect directly to the 6 Subway line at Pelham Bay Park. Minutes away from “Restaurant Row,” local yacht clubs, and nature preserves
Reach out to the broker for more info on lease terms and amenities
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Contacts
Ariel Property Advisors
Ariel Property Advisors
Ariel Property Advisors
Ariel Property Advisors
Building Details
- For Sale $10,500,000
- Property Type Special Purpose
- Lot Size 2.75 Acre
- Date Updated Mar 16, 2026
Attachments
Getting Around
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Walk Score ®
Very Walkable (75) -
Transit Score ®
Some Transit (37) -
Bike Score ®
Bikeable (53)
Location
- City Bronx, NY
- Neighborhood City Island
- Zip Code 10464
- Market Bronx
Points of Interest
Middletown Road
2.51 miles
Westchester Square–East Tremont Avenue
2.91 miles
Baychester Avenue & Tillotson Avenue (Exit only)
3.13 miles
Gun Hill Road
3.19 miles
Castle Hill Avenue NE Corner
3.47 miles
Castle Hill Avenue SW Corner
3.49 miles
Bronx Park East
4.13 miles
233rd Street
4.54 miles
Williams Bridge
4.62 miles
Tesla Supercharger
2.18 miles
Mobil
2.44 miles
Shell
2.53 miles
Citgo
2.77 miles
Costco Gasoline
3.14 miles
Gulf
3.33 miles
76
3.41 miles
Tesla Destination Charger
7.39 miles
eVgo
7.47 miles
Chang Li Supermarket Inc.
3.65 miles
New Rochelle Transit Center
4.13 miles
New Roc Garage
4.16 miles
Bronx River Parking
4.35 miles
Asia Parking
4.57 miles
Southern Boulevard Parking
4.82 miles
Fordham Regional Parking Facility
4.84 miles
Parking Area A
4.84 miles
Port Washington Parking District Lot 9
4.90 miles
Velocity
4.39 miles
LMC
4.86 miles
Enterprise
4.97 miles
Larchmont Car Wash
4.99 miles
Car Lease Inc New Rochelle
5.16 miles
Bedford Car Wash
5.43 miles
Razzle Dazzle Car Wash
5.88 miles
Truck Leasing
5.98 miles
Cross County Car Wash
6.03 miles
Seafood City
0.10 miles
Dunkin Donuts
0.22 miles
Arties
0.23 miles
The Original Crab Shanty
0.29 miles
City Island Lobster House
0.31 miles
City Island Diner
0.41 miles
The Snug
0.41 miles
Folomena's Pizza
0.44 miles
The Black Whale
0.46 miles
Mall at Bay Plaza
2.14 miles
Key Foods
2.14 miles
Macy's
2.15 miles
Stop & Shop
2.21 miles
JCPenney
2.27 miles
Pruzzo's Supermarket
2.29 miles
ALDI
2.49 miles
Deli
2.60 miles
Food Universe Marketplace
2.65 miles
New York Ladder Company 53
0.55 miles
Westchester Avenue Pharmacy
2.07 miles
Walgreens
2.22 miles
FDNY Engine 89/Ladder 50
2.36 miles
Throgs Neck Urgent Medical Care
2.46 miles
Drug Box
2.47 miles
New York Ladder Company 61
2.47 miles
Fortyfifth Precinct Police Station
2.47 miles
New York Engine Company 66
2.48 miles
521 City Island Ave Bronx Listing Summary
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What is the asking price at 521 City Island Ave Bronx?
521 City Island Ave Bronx is currently listed for sale at Contact for pricing.
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