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X11 First Ave LLC is a general contractor with 2 tracked New York City building-permit projects on record, with the latest filing in that record 35 days ago. Its filings (May 2025 to Sep 2026) are concentrated in Manhattan. If you work at X11 First Ave LLC, claim this page to add a description.
Filed 35 days ago
#1,400
by NYC filing activity
among NYC general contractors, 90 days to Oct 8, 2026
2
projects
from 13 filings
1/16
active week
weeks with a filing (16 weeks to Oct 8, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$66.2M Manhattan office renovation
Grade AActive 1 month ago · 417 units · X11 First Ave: GC
Application filed for an office to residential conversion and enlargement to the existing building
GC named · Architect identified · 2 engineers identified · 4 anticipated categories not yet filed
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2 project records for X11 First Ave LLC: addresses, values, project teams
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Declared values2 on filetoo few for a rangeLast filed35 days agoManhattan · Sep 3, 2026Last 90 days1 active0 newly filed
Filing activity · 16 weeks to Oct 8, 2026 · peak Sep 2026
JUN
JUL
AUG
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Project mix · by use
Commercial50%
Other50%
Geography · by borough
Manhattan100%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Cetraruddy Architecture DPC | Architecture | 1 | |
| 2 | Gilsanz Murray Steficek LLP | Architecture | 1 | |
| 3 | MG Engineering D.P.C. | Engineering | 1 | |
| 4 | Surface Design | Architecture | 1 | |
| None on shared filings. | ||||
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Owner and developer names, and the projects behind each connection, are part of the Leads product.
Firms that appear on the same New York City permit filings. Association on shared filings, not a proven working relationship.
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State licenseNYC DOB General Contractor #627223As filed on 8 permits · Jul 2026
Repeat working relationships0 firmsFirms this one appears with on more than one project, out of 4 in total.
Permit speed243 days224 days longer than the NYC median
based on 6 firm filings vs 98,395 NYC filings
based on 6 firm filings vs 98,395 NYC filings
Frequently asked questions
How many NYC projects does X11 First Ave LLC appear on?▾
PermitPipeline tracks 2 New York City building-permit projects for X11 First Ave LLC (May 2025 to Sep 2026). 1 had filing activity in the last 90 days.
Does X11 First Ave LLC work on commercial or residential projects?▾
Across its tracked New York City filings, 50% of X11 First Ave LLC's projects are commercial and 0% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in New York City does X11 First Ave LLC work?▾
100% of X11 First Ave LLC's tracked New York City projects are in Manhattan.
Which firms appear most often on the same filings as X11 First Ave LLC?▾
X11 First Ave LLC most frequently appears on the same New York City permit filings as Cetraruddy Architecture DPC, Gilsanz Murray Steficek LLP, MG Engineering D.P.C.. Appearing together indicates association on shared filings, not a proven working relationship.
Is X11 First Ave LLC a general contractor?▾
X11 First Ave LLC is listed as a general contractor on its New York City permit filings. Roles on this profile are derived from the role each firm holds on public NYC DOB filings.
Public aggregate — full project records are part of the paid leads product. Ranking, filing activity, project mix and geography were last recomputed Oct 8, 2026. Project counts, declared values and filing dates are read live from NYC DOB filings.
How far back does this record go?▾
This page covers the recent permit record, not the firm’s full history. A firm’s earliest filing here means it was already working when our record opens, not that it started then.
Sources
New York City Department of Buildings permit filings.
Record source
Read directly from NYC DOB filings.
Photography
None are shown until the firm supplies them.
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