Sweeney Building
Downtown Brooklyn, New York · 30 Main Street, Brooklyn, NY · From recorded sales
Sweeney Building in Downtown Brooklyn, New York has 126 recorded condominium sales dating back to 2004. Over the last five years, its median sale price is $2.2M and its median price per square foot is $1,276. Every figure below comes from recorded sales and transfers, not listings or estimates.
Sweeney Building is one of 30 condo buildings CURVE covers in Downtown Brooklyn, where the median building recorded $1,358 per square foot over the last five years. By that measure it ranks #18 of 26 in the neighborhood.
The record
Sales activity
Recorded sales by year
Every sale recorded in Sweeney Building, by year, with that year's median price.
Sales by price point
How 126 recorded sales distribute across the price ladder.
Unit mix sold
Bedroom count across recorded sales.
10 most recent sales
| Unit | Date | Beds | Type | Price | $/SF | Change |
|---|---|---|---|---|---|---|
| 10D | 8/20/2026 | 2 Beds | Resale 2 | $1.7M | $1,155/SF | vs prior sale +40% |
| 8H | 7/23/2026 | 2 Beds | Resale 2 | $1.8M | $1,463/SF | vs prior sale +11% |
| 11F | 6/8/2026 | 2 Beds | Resale 2 | $3.6M | $1,640/SF | vs prior sale +8% |
| 9D | 5/12/2026 | 2 Beds | Resale 2 | $1.8M | $1,222/SF | vs prior sale +3% |
| 2H | 4/30/2026 | 2 Beds | Resale 3 | $2.0M | $1,002/SF | vs prior sale +8% |
| 4G | 3/31/2026 | 3 Beds | Resale 2 | $2.3M | $900/SF | vs prior sale +31% |
| 3B | 3/10/2026 | 3 Beds | Resale 2 | $2.9M | $1,524/SF | vs prior sale +11% |
| 7H | 2/25/2026 | 2 Beds | Resale 1 | $1.6M | $1,293/SF | — |
| 6E | 9/19/2025 | 1 Bed | Resale 3 | $1.4M | $1,142/SF | vs prior sale +7% |
| 5B | 6/4/2025 | 3 Beds | Resale 4 | $2.8M | $1,471/SF | vs prior sale -1% |
The full Sweeney Building record
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- All 126 recorded sales
- Every unit's resale chain
- Buyer and seller names
- Financing and recording details
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About this record
Where does this data come from?
Every sale shown is recorded with the New York City Register (ACRIS), the legal record of the transaction, not a listing or an estimate. CURVE assembles, verifies and reconciles each one to the building and the unit.
How many sales are in Sweeney Building?
126 recorded sales, going back to 2004, of which 126 are resales. This page shows the 10 most recent; a free account shows all of them.
What has Sweeney Building done over time?
Resales in the building have changed hands at an average of +23.7% against their prior recorded price, after an average hold of 7.2 years.
What does the full record show?
The complete sales table, each unit's full chain of title, buyer and seller names, financing detail, the recording details behind every figure, the condo documents, and reports you can send to a client.