Skip to Content
  • Apartments
  • Overview & Photos
  • Maps
  • Ratings & Insider Info
  • Floorplans
  • Sales Data & Comps
  • Similar Buildings
  • All Units
30 Main Street
Last updated on Feb 5, 2026

Sweeney Building,
30 Main Street

The 12-story Sweeney Building, built in 1916 and converted to condos in 2003, offers spectacular views of Brooklyn Bridge and Manhattan skyline from its DUMBO location. Amenities include a doorman, gym, and roof deck, with easy access to Brooklyn Bridge Park and multiple transportation options. Currently, 7 apartments are for sale.

30 Main Street Location Map
Unit #
Beds
Baths
Size
Price / Ft2
Price
Listed on
Days on Market
Apt. 9D
Quick view: 14 photos
1 bed
2 baths
1,494 ft2
$1,238
$1,850,000
Jan 28, 2026
8 days
Apt. 10F
Quick view: 15 photos
2 beds
2.5 baths
2,209 ft2
$1,517
$3,350,000 -4.3%
Oct 2, 2025
126 days
Apt. 4G
Quick view: 18 photos
1 bed
2.5 baths
2,556 ft2
$933
$2,385,000
Sep 12, 2025
146 days
Apt. 3F
Quick view: 12 photos
1 bed
1 bath
2,126 ft2
$1,023
$2,175,000 -9%
Sep 5, 2025
153 days
Apt. 2H
Quick view: 35 photos
2 beds
2.5 baths
2,046 ft2
$1,075
$2,199,000 -4.3%
May 27, 2025
254 days
Apt. 11F
Quick view: 27 photos
2 beds
2.5 baths
2,209 ft2
$1,698
$3,750,000 -6.1%
May 22, 2025
259 days
Apt. 8G
Quick view: 26 photos
2 beds
2.5 baths
2,474 ft2
$1,615
$3,995,000
May 2, 2025
279 days
Unit #
Beds
Baths
Size
Closing Price
Price / Ft2
Asking Price
Sold on
Show More Closed Sales

Overview of Sweeney Building at 30 Main Street

The Sweeney Building at 30 Main Street in DUMBO, Brooklyn, is a historic 12-story Neo-Classical Industrial style building constructed in 1916 by the W.H. Sweeney Manufacturing Company, makers of metal kitchenware. Originally designed by Moyer Engineering and Construction Company, the building features an austere concrete façade with distinctive architectural elements including large window openings, rusticated piers, and a projecting cornice. The structure was converted to an 87-unit luxury condominium in 2003 by architect John Fifeld of Fifeld Piaker Elman Architects.

The building's industrial heritage is preserved in its 11-foot ceilings, oversized windows, and robust concrete construction. Notable features include segmental-arch and round-arch windows, and some penthouses feature private rooftop cabanas. The conversion maintained the building's architectural integrity while introducing modern amenities including a 24-hour doorman, live-in superintendent, gym, bike room, storage facilities, and a roof deck.

Situated in a prime DUMBO location, the building offers spectacular views of the Brooklyn Bridge, Manhattan Bridge, East River, and Manhattan skyline. Its position provides easy access to Brooklyn Bridge Park, Jane's Carousel, Empire Stores, and St. Ann's Warehouse. Transportation options are abundant, with multiple subway lines (A/C, F, 2/3, R, and 4/5) and the DUMBO/Brooklyn Bridge Park ferry stop nearby.

Doorman
Full Time
Type
Condo
Year Built
1908
Converted: 2002
Apartments
Floors
12
Neighborhood
Min Down
20%

Amenities

  • Concierge
  • FT Doorman
  • High-Rise
  • Pre War
  • Resident Storage
  • Central AC
  • Rooftop Terrace
  • Elevator
  • Fitness Center
  • Bike Room
  • Live-In Superintendent
{ "key" : "AIzaSyDquABdSLhathmwfnoTcYwA1BY6coZZyZk", "lat": 40.70304, "lng": -73.991, "marker": { "icon": "https://img3.cityrealty.com/neo/i/w/amenities/base.png" } }

  1. J
  2. Z
  3. 2
  4. 3
  5. 4
  6. 5
  7. A
  8. C
at Cadman Plaza West and Cranberry 0.26 miles
  1. F
at Jay 0.31 miles

Pros & Cons

  • Very handsome former industrial building
  • Newly renovated gym
  • Large windows
  • Impressive views
  • Fenced moat
  • 24-hour doorman service
  • 11-foot ceilings
  • Roof deck
  • Roof-top cabanas
  • Close to Subway
  • Private storage facilities
  • Bike room
  • Prime DUMBO location
  • Solid concrete construction for quiet living
  • Historic landmark status
  • Many apartments
  • No balconies
  • No fireplaces
  • No sidewalk landscaping

CityRealty Rating

28
/44
Architecture
+
29
/36
Location
+
15
/39
Features
+
8
Editor’s Points
=
80
CITYREALTY
RATING
  • How is the CityRealty Rating calculated?

    Architecture
    • 30+ remarkable
    • 20-29 distinguished
    • 11-19 average
    • < 11 below average
    Location
    • 27+ remarkable
    • 18-26 distinguished
    • 9-17 average
    • < 9 below average
    Features
    • 22+ remarkable
    • 16-21 distinguished
    • 9-15 average
    • < 9 below average

Sales Summary

Show:

Sales History by Apartment Size

View Full Closing History
Show:

Pricing Comparison of Similar Buildings

View Detailed Comparison

Editorial Coverage

Alternate Addresses

  • 24 Main Street
  • 26 Main Street
  • 28 Main Street
  • 32 Main Street
  • 34 Main Street
  • 36 Main Street
1 Park Row
at at the northeast
Financial District
Sun-splashed studio to 3-bed condos by Paris Forino from $850K. Prime Downtown location overlooking City Hall Park | 2025 Occupancy.
Learn More