Investor Profile - CT
Colleen Nastahowski
Colleen Nastahowski is a real estate investor and operator based in New York City, NY-NJ-CT. Public filings show activity across 3 properties held through 3 holding companies. Recent mortgage relationships include ALTA CAPITAL GROUP, Deephaven Mortgage, and CATHERINE A SQUILLACE.
Colleen's Activity
As of June 2026, public records show approximately $527k in recorded mortgage exposure linked to this investor across at least 3 mortgage filings and 3 properties held through 3 holding companies. Activity appears concentrated in residential assets recorded between 2019 and 2023.
Associated People
Primary Geography
New York City, NY-NJ-CT
ZIP codes: 06830 and 06807
Most activity in GREENWICH and COS COB.
Property Type Breakdown
Associated Entities (3)
CT · 0 properties · 1 mortgage
CT · 0 properties · 1 mortgage
+1 more entities not shown
Mortgages (3)
Top Lenders
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 09/26/2023 | $227k | Open | Deephaven Mortgage | 59 COS COB AVENUE LLC | 59 COS COB AVE, COS COB, CT 06807 |
| 03/04/2020 | $300k | Open | ALTA CAPITAL GROUP | 52 LE GRANDE AVENUE LLC | 52 LE GRANDE AVE, GREENWICH, CT 06830 |
+1 more not shown
Owned Properties (3)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 59 COS COB AVE, COS COB, CT 06807 | 59 COS COB AVE LLC | Owns - 2.7 yrs | $0 |
| 65 LE GRANDE AVE, GREENWICH, CT 06830 | 65 LE GRANDE LLC | Owns - 6.5 yrs | $350k |
+1 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 Colleen Nastahowski associated with?
Colleen Nastahowski is associated with 3 entities based on extracted signatures from public records. Key entities include 52 LE GRANDE AVENUE LLC, 59 COS COB AVENUE LLC, and 65 LE GRANDE LLC.
How many properties are associated with this investor?
At least 3 properties are associated with Colleen Nastahowski and the entities they control, based on signatures extracted from recorded documents connecting Colleen Nastahowski to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references ALTA CAPITAL GROUP, Deephaven Mortgage, and CATHERINE A SQUILLACE, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2019 through 2023, with the most recent mortgage recorded in 2023.
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.
Elementix is not a consumer reporting agency, and this information does not constitute a consumer report. The data may not be used to make decisions about an individual's eligibility for personal credit, consumer housing, employment, insurance, or any other purpose governed by the Fair Credit Reporting Act.
Elementix may suppress certain contact indicators where legally required or where appropriate for safety or privacy reasons. Requests for removal, suppression, or correction of information must be submitted to [email protected]. Elementix reviews such requests only where required by applicable law. General objections or unsupported demands do not create a removal obligation.