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Leon D. Dematteis Const

General contractor · New York City
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dematteisorg.comLinkedIn820 Elmont Rd, Elmont, NY 11003
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Leon D. Dematteis Const is a general contractor with 4 tracked New York City building-permit projects on record, with the latest filing in that record 7 days ago. Its filings (Sep 2024 to Aug 2026) are concentrated in Queens and Bronx. If you work at Leon D. Dematteis Const, claim this page to add a description.

Filed 7 days ago
#1,325
by NYC filing activity
among NYC general contractors, 90 days to Sep 4, 2026
4
projects
from 23 filings
2/16
active weeks
weeks with a filing (16 weeks to Sep 4, 2026)
Portfolio · $399/yearFree during launch
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Permit-backed projects · PermitPipeline’s independent record
Neighborhood, filing date, scope and declared value are shown here. Exact addresses, owner names and mailing addresses, and full filing histories are part of the paid product.
Declared values3 on filetoo few for a rangeLast filed7 days agoQueens · Aug 28, 2026Last 90 days1 active0 newly filed

Filing activity · 16 weeks to Sep 4, 2026 · peak Jun 2026

MAY
JUN
JUL
AUG

Project mix · by use

Other100%

Geography · by borough

Queens75%
Bronx25%

Shared-project connections

#FirmPrimary roleSharedRelative
1Tarek M. Zeid, PE, PLLCEngineering2
2Cosentini AssociatesEngineering1
3Fna Engineering Services PCEngineering1
4Gilsanz Murray Steficek LLPArchitecture1
5Skidmore, Owings & MerrillArchitecture1
None on shared filings.

Create a free account to see every firm on these projects and how many projects each one shares.

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.
State licenseNYC DOB General Contractor #1414As filed on 6 permits · Jun 2026
Repeat working relationships1 firmFirms this one appears with on more than one project, out of 6 in total.
Permit speed156 days
This firm156d
NYC median19d
137 days longer than the NYC median
based on 10 firm filings vs 98,525 NYC filings

Frequently asked questions

How many NYC projects does Leon D. Dematteis Const appear on?▾
PermitPipeline tracks 4 New York City building-permit projects for Leon D. Dematteis Const (Sep 2024 to Aug 2026). 1 had filing activity in the last 90 days.
Where in New York City does Leon D. Dematteis Const work?▾
75% of Leon D. Dematteis Const's tracked New York City projects are in Queens.
Which firms appear most often on the same filings as Leon D. Dematteis Const?▾
Leon D. Dematteis Const most frequently appears on the same New York City permit filings as Tarek M. Zeid, PE, PLLC, Cosentini Associates, Fna Engineering Services PC. Appearing together indicates association on shared filings, not a proven working relationship.
Is Leon D. Dematteis Const a general contractor?▾
Leon D. Dematteis Const 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 Sep 4, 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.
Working with this firm?Monitor this companyOne weekly email when this firm files a new project. No checking back.Monitor up to 10 firms freeIs this your company?Claim this firmAdd your logo, a short introduction, project descriptions and your own contact details.Free
Sources

New York City Department of Buildings permit filings.

Record source

Read directly from NYC DOB filings.

Photography

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