235 E 42nd St: The data

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Overview

Latest update: 7/9/2026, 10:30 am

The building at 235 E 42nd St, Manhattan, saw structural issues on Tuesday 7/7/2026. Since then, emergency repairs were performed. See social media posts in the appendix for more context.

In this post, we collect relevant facts that make it easier search public data, mostly provide by DOB Websites.

Notes

Since this is a fast-developing situation:

  • The following is focused on facts and sourcing.
  • We do not attempt to make inferences or assumptions. Instead, we help you understand key facts, using public data portals
  • We extensively checked each claim, but do make not insurances regarding accuracy.
  • We expect to be updating this over the coming days. Please let us know if there is any inaccuracy or key information is missing.

Resources Used

  1. ZoLa: Land Use database
  2. DOB NOW (for new filings and permits)
  3. BIS (previous DOB database, still used for various data types)

In general, when searching city resources, prefer to search by tax lot (BBL) or building number (BIN). Address search can be unreliable, and a given building can have multiple addresses.

Project details

This project involves one block (1316) and two lots: 23 and 12. Each tax lot has one major building (BIN). See appendix for full BIN and address details.

  1. 235 E 42nd St: BBL = 1013160023, BIN=1037552
  2. 219 E 42nd St: BBL = 1013160012, BIN = 1037551

The project

Filing

The key filings for the conversion are the following:

  1. 235 E 42nd St: M01075133 (CityTracker.ai link)
  2. 219 E 42nd St: M01075131 (CityTracker.ai link)

In the following, we only present information from the initial ("I1") filing. Both filings has undergone substantial change (e.g. M01075133: 8 modifications, S1 => P5), so understanding the latest state fully would involves reviewing any modification.

CityTracker.ai filing summary:

Most of this data can be validated using DOB NOW, for example:

  1. Search by job number
  2. Job details
  3. M01075133 I1
  4. Plans/Work (PW1):

Documents

The filings contain a large number of documents per images below. We believe that the following are likely most relevant:

  1. Zoning Diagram (ZD1), exists for both filings
  2. M01075133 (235 E 42nd St):
    1. Other Documents - Demo Plans - Approved”: Provides plans for interior demolition
    2. “Other Documents - Existing Conditions Ai-1 Approved”: Shows floor plans for existing conditions

Zoning Documents

Zoning documents (ZD1) provide an illustration of attempted work. The images below are from the ZD1 of the initial filing. Note that it is possible that zoning documents were updated afterwards.

  1. 235 E 42nd: Adding 4 stories (per filing, 33 => 37)
  2. 219 E 42nd: Adding 20 stories (per filing, 10 => 30)

Recent Events

Complaints

Various complaints were filed about the incident on 7/7 and after.

BISWEB complaints for 235 E 42nd

Initial complaint about events of 7/7 in image below, see complaint link:
"... 2 steel column buckled on 21 floor ..."

Initial complaint for 235 E 42nd on 7/7

Social Media Posts

FDNY, Tuesday 7/7

DOB, Wednesday 7/8

BIN and addresses

235 E 42nd St

BBL = 1013160023, BIN=1037552 (see details below)

This lot is associated with two building identification numbers (BIN). We believe (but cannot confirm yet) that only 1037552 is active.

  1. 1037552, with three addresses per DOB NOW: 785 - 791 2 AVENUE, 229 - 241EAST 42 STREET, 228 - 238EAST 43 STREET
  2. 1802341: 243-245 E 42nd

219 E 42nd St

BBL = 1013160012, BIN = 1037551

Addresses: 219-227 E 42nd St, 212-224 E 43rd St