555 WEST 42 STREET
BBL 1010710001 · Class D8 · Built 1987 · 44 floors · 422 units · COMREF RIVER LLC
555 WEST 42 STREET is a property in New York City zoned C6-4. The C6-4 classification is Commercial C6-4. The structure was built in 1987. It has 44 floors. The building contains 388,073 square feet. Built FAR is 10.31 of 10 maximum allowed. Assessed value is $53,172,000. Last sold for $243,500,000 in July 2025. Located in Council District 3.
You can build 377K sf as-of-right. The lot uses 103% of it today.
Governing use: residential at FAR 10.00 on a 37,655 sqft lot. As-of-right means no rezoning, no variance — figures from PLUTO; verify with a zoning attorney before you underwrite.
The envelope, itemized
Every time the city discussed this parcel
No development cases on file for this parcel
When a ULURP, BSA, or landmark application touches this lot, it appears here with its full hearing trail.
Ownership chain
8 recorded transfers| Date | Type | Price | From → To |
|---|---|---|---|
| Jul 25, 2025 | DEED | $243,500,000 | RB APARTMENTS LLC→COMREF RIVER LLC |
| Mar 20, 2018 | DEED | — | MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY→RB APARTMENTS LLC |
| Dec 31, 1991 | DEED | — | ELFON REALTY CO→MASSACHUSETTS MUTUALETC |
| Aug 18, 1982 | DEED | — | 11-42 PROJECT JOINTVEN.→ELFON REALTY CO. |
| Aug 18, 1982 | DEED | — | 11-42 PROJECT ETC D/B/A→ELFON REALTY CO. |
| Apr 8, 1982 | DEED | — | AEROFLEX MUSEUM→11-42 PROJECT JOINTVEN. |
| Nov 21, 1974 | DEED | — | AEROFLEX FOUNDATION→AEROFLEX MUSEUM |
| Sep 30, 1968 | DEED | — | AEROFLEX CORP→AEROFLEX FOUNDATION |