Charles Diehl Architect LLC is an architecture firm with 45 tracked New York City building-permit projects on record, with the latest filing in that record 12 days ago. Its filings (Sep 2024 to Sep 2026) are concentrated in Brooklyn and Manhattan, 69% residential. A typical project in the record declares $35K–$168K. If you work at Charles Diehl Architect LLC, claim this page to add a description.
Filed 12 days ago
#510
by NYC filing activity
among NYC architects & engineers, 90 days to Oct 7, 2026
45
projects
from 104 filings
11/16
active weeks
weeks with a filing (16 weeks to Oct 7, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$361K Brooklyn residential renovation
Grade AActive 1 month ago · 3 filings · 2 units · Charles Diehl Architect: architect
PROPOSED INTERIOR RENOVATION OF AN EXISTING 2-STORY OVER BASEMENT & CELLAR, 2-FAMILY RESIDENTIAL BRICK BUILDING @ PARTIAL CELLAR, FULL 1ST…
GC named · 1 other firm identified · 5 anticipated categories not yet filed
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$90K Manhattan commercial renovation
Grade BActive 2 months ago · 9 units · Charles Diehl Architect: architect
INSTALLATION OF EXTERIOR EXHAUST DUCT FROM 1ST FL RESTAURANT AND ASSOCIATED EXHAUST FAN AT ROOF TO REMOVE NYC DOB
GC named · 1 other firm identified · 2 anticipated categories not yet filed
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$120K Queens residential renovation
Grade AActive 30 days ago · 2 units · Charles Diehl Architect: architect
General construction, mechanical
No GC named · 2 anticipated categories not yet filed
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45 project records for Charles Diehl Architect LLC: addresses, values, project teams
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Typical project$35K–$168K$63K typical1.3× the NYC median ($50K)Last filed12 days agoBrooklyn · Sep 25, 2026Last 90 days10 active9 newly filed
Filing activity · 16 weeks to Oct 7, 2026 · peak Aug 2026
JUN
JUL
AUG
SEP
OCT
Project mix · by use
Commercial16%
Residential69%
Other15%
Geography · by borough
Brooklyn62%
Manhattan22%
Queens16%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Aa Bldg & Insp Svc LLC | Engineering | 1 | |
| 2 | Darius Toraby Architects, P.C. | Architecture | 1 | |
| 3 | Engineering Professional Service P. | Engineering | 1 | |
| 4 | Structural Engineering Technologies | Engineering | 1 | |
| 1 | SMBT LLC | General contractor | 2 | |
| 2 | Builders Joseph and Sons | General contractor | 2 | |
| 3 | Gibco Construction Corp | General contractor | 1 | |
| 4 | Overall Renovation Inc | General contractor | 1 | |
| 5 | CHS Contracting LLC | General contractor | 1 |
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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 license2 license filersMost frequent: RA 032543 · PE 092329. Individual licenses on this firm's filings, not held by the firm.
Repeat working relationships2 firmsFirms this one appears with on more than one project, out of 14 in total.
Permit speed49 days17 days longer than the NYC median
based on 31 firm filings vs 153,823 NYC filings
based on 31 firm filings vs 153,823 NYC filings
Frequently asked questions
How many NYC projects does Charles Diehl Architect LLC appear on?▾
PermitPipeline tracks 45 New York City building-permit projects for Charles Diehl Architect LLC (Sep 2024 to Sep 2026). 10 had filing activity in the last 90 days.
Does Charles Diehl Architect LLC work on commercial or residential projects?▾
Across its tracked New York City filings, 16% of Charles Diehl Architect LLC's projects are commercial and 69% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in New York City does Charles Diehl Architect LLC work?▾
62% of Charles Diehl Architect LLC's tracked New York City projects are in Brooklyn.
What is a typical Charles Diehl Architect LLC project worth?▾
The median declared value across the 44 New York City projects Charles Diehl Architect LLC has on record that state one is $63K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Charles Diehl Architect LLC?▾
Charles Diehl Architect LLC most frequently appears on the same New York City permit filings as SMBT LLC, Builders Joseph and Sons, Aa Bldg & Insp Svc LLC. Appearing together indicates association on shared filings, not a proven working relationship.
Is Charles Diehl Architect LLC an architecture firm?▾
Charles Diehl Architect LLC is listed as an architecture firm 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 7, 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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