Investor profile - MA
Carl Nagykoechlin
Carl Nagykoechlin is a real estate investor and operator based in Boston-Worcester, MA-NH. Public filings show activity across 145 properties held through 21 holding companies. Recent mortgage relationships include Santander Bank, MassHousing, and THE CITY OF CAMBRIDGE MASSACHUSETTS.
Carl's Activity
As of December 2025, public records show approximately $462.6M in recorded mortgage exposure linked to this investor across at least 225 mortgage filings and 145 properties held through 21 holding companies. Activity appears concentrated in residential and multifamily assets recorded between 2010 and 2025.
Primary Geography
Boston-Worcester, MA-NH
ZIP codes: 02139, 02141, 02140, 02138, and 01746
Most recorded activity for this investor appears in CAMBRIDGE, HOLLISTON, STONEHAM, SOMERVILLE, and BILLERICA.
Property Type Breakdown
Associated Entities (21)
MA · 10 properties · 106 mortgages
MA · 2 properties · 54 mortgages
MA · 2 properties · 11 mortgages
+18 more not shown
Mortgages (225)
Top Lenders
$117.1M · 3 loans
$84.8M · 10 loans
$84.3M · 88 loans
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 12/10/2025 | $7.7M | Open | THE CITY OF CAMBRIDGE MASSACHUSETTS | 35 CHERRY LANDOWNER LLC | 35 CHERRY ST, ASHLAND, MA 01721 |
| 10/30/2025 | $337k | Open | THE CITY OF CAMBRIDGE MASSACHUSETTS | JAS HOMEOWNERSHIP LLC | 369 FRANKLIN ST, CAMBRIDGE, MA 02139 PH2 |
| 08/28/2025 | $575k | Open | CAMBRIDGE CITY OF | JAS HOMEOWNERSHIP LLC | 120 PLEASANT ST, CAMBRIDGE, MA 02139 |
+222 more not shown
Owned Properties (145)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 369 FRANKLIN ST, CAMBRIDGE, MA 02139 PH2 | JAS HOMEOWNERSHIP LLC | Owns - 2 mos | $228k |
| 1 ABERDEEN WAY, CAMBRIDGE, MA 02138 205 | JAS HOMEOWNERSHIP LLC | Sold | $196k |
| 223 PUTNAM AVE, CAMBRIDGE, MA 02139 | FIRST CITIZENS BANK & TRUST CO | Sold | $0 |
+142 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in residential, multifamily, and misc properties across Boston-Worcester, MA-NH.
What companies is Carl Nagykoechlin associated with?
Carl Nagykoechlin is associated with 21 entities based on extracted signatures from public records. Key entities include JAS HOMEOWNERSHIP LLC, JUST A START CORP, SQUIRRELWOOD LLC, JAS CONSOLIDATED PROPERTIES LLC, and CLOSE BUILDING LLC.
How many properties are associated with this investor?
At least 145 properties are associated with Carl Nagykoechlin and the entities they control, based on signatures extracted from recorded documents connecting Carl Nagykoechlin to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references Santander Bank, MassHousing, and THE CITY OF CAMBRIDGE MASSACHUSETTS, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2010 through 2025, with the most recent mortgage recorded in 2025.
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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