Investor Profile - NY
Stuart Berg
Stuart Berg is a real estate investor and operator based in New York City, NY-NJ-CT. Public filings show activity across 1,044 properties held through 39 holding companies. Recent mortgage relationships include CASTELLAN CAPITAL, CREIF 170, and NEW YORK COMMUNITY BANK.
Stuart's Activity
As of June 2026, public records show approximately $4.8M in recorded mortgage exposure linked to this investor across at least 6 mortgage filings and 1,044 properties held through 39 holding companies. Activity appears concentrated in residential assets recorded between 2015 and 2026.
Associated People
Primary Geography
New York City, NY-NJ-CT
ZIP codes: 10032, 10029, 10017, 10463, and 10471
Most activity in NEW YORK and BRONX.
Property Type Breakdown
Associated Entities (39)
NY · 30 properties · 4 mortgages
NY · 16 properties · 4 mortgages
+37 more entities not shown
Mortgages (6)
Top Lenders
$4.8M · 1 loan
$0 · 0 loans
$0 · 0 loans
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 03/02/2021 | $39.0M | Closed | Axos Bank | 690 REALTY CO LLC | 750 RIVERSIDE DR, NEW YORK, NY 10031 |
| 06/21/2019 | $1.3M | Closed | CASTELLAN CAPITAL | UPPER MANHATTAN APARTMENTS LLC | 67 W 107TH ST #1, NEW YORK, NY 10025 |
+4 more not shown
Owned Properties (1,044)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 10 CHRISTOPHER ST #3E, NEW YORK, NY 10014 | JOBER NY BOROUGHS LLC | Owns - 1 mo | $4.3M |
| 10 CHRISTOPHER ST #1E, NEW YORK, NY 10014 | JOBER NY BOROUGHS LLC | Owns - 1 mo | $4.3M |
+1042 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in residential properties across New York City, NY-NJ-CT.
What companies is Stuart Berg associated with?
Stuart Berg is associated with 39 entities based on extracted signatures from public records. Key entities include UPPER MANHATTAN APARTMENTS LLC, 1325 FIFTH AVENUE LLC, 156 08 REALTY CO LLC, 305 307 WEST 150 LLC, and BLAIR HOUSE LLC.
How many properties are associated with this investor?
At least 1,044 properties are associated with Stuart Berg and the entities they control, based on signatures extracted from recorded documents connecting Stuart Berg to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references CASTELLAN CAPITAL, CREIF 170, and NEW YORK COMMUNITY BANK, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2015 through 2026, with the most recent mortgage recorded in 2021.
How is associated activity determined?
Elementix uses AI to extract signatures from recorded documents. These signatures are used to determine the relationships between people and entities. This is a novel approach that goes beyond looking at corporate filings and skip-tracing.
The information displayed on this page is compiled from recorded real estate documents, business filings, and other lawfully available sources. Elementix summarizes and analyzes public record activity related to investment real estate and associated business entities. Any contact indicators shown (such as email domain references or partial phone digits) are provided solely as unverified signals and may be incomplete or outdated.
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