15 William Street
Financial District, New York · 15 William Street, New York, NY
15 William Street in Financial District, New York has 489 recorded condominium sales dating back to 2008, a median sale price of $1.2M and an average of $1,360 per square foot. Every figure below is drawn from recorded deeds — not listings, not estimates.
15 William Street is one of 72 condo buildings CURVE covers in Financial District, where the median recorded price is $1,024 per square foot. By that measure it ranks #12 of 62 in the neighborhood.
The record
Sales activity
Recorded sales by year
Every deed recorded in 15 William Street, by year, with that year's median price.
Sales by price point
How 489 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 |
|---|---|---|---|---|---|---|
| 15C | 8/13/2026 | 1 Bed | Resale 1 | $955K | $1,148 | -23% |
| 14C | 7/16/2026 | 1 Bed | Resale 2 | $950K | $1,142 | -14% |
| 10G | 6/30/2026 | 1 Bed | Resale 1 | $825K | $1,031 | -17% |
| 15H | 6/25/2026 | 2 Beds | Resale 1 | $1.4M | $1,052 | -10% |
| 21A | 6/15/2026 | 2 Beds | Resale 1 | $1.4M | $1,091 | -27% |
| 18A | 6/3/2026 | 2 Beds | Resale 1 | $2.5M | $1,842 | +38% |
| 14E | 5/12/2026 | 2 Beds | Resale 1 | $1.5M | $1,188 | -19% |
| 21E | 5/7/2026 | 2 Beds | Resale 1 | $1.6M | $1,214 | -25% |
| 9F | 4/28/2026 | 1 Bed | Resale 1 | $900K | $1,108 | -18% |
| 11G | 4/17/2026 | 1 Bed | Resale 1 | $845K | $1,056 | -26% |
The full 15 William Street record
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About this record
Where does this data come from?
Every sale shown is a deed recorded with the New York registry — 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 15 William Street?
489 recorded sales, going back to 2008, of which 178 are resales. This page shows the 10 most recent; members see all of them.
What has 15 William Street done over time?
Resales in the building have changed hands at an average of -5.9% against their prior recorded price, after an average hold of 6.5 years.
What do members see that I don't?
The complete sales table, each unit's full chain of title, buyer and seller names, financing detail, the deed book and page behind every figure, the condo documents, and reports you can send to a client.