Excel Engineering — NYC Architecture And Engineering Firm: DOB NOW Filings, Permits & Projects

Design Firm

Excel Engineering

Design

STATEN ISLAND · 1

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1 building

Total Filings

Projects on File

Buildings Worked

Projects w/ Open Permits

Design

Role

Activity

Not enough dated projects to chart.

Portfolio status

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Filed only1100%

By project type

Alteration CO1

Most active buildings

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2295 RICHMOND AVENUESTATEN ISLAND · latest 11/04/2025

1 projects

Key relationships

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Owners

INTERSTATE MANAGEMENT

1 projects

People

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Jeffrey Liebergenlatest 10/30/2025

1 filings

Filed under

Excel Engineering1

Identified by the contact ids of the people who file for the firm and by its email domain (excelengineer.com), not by matching names.

Most recent projects

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Project	Address	Type	Status	Filed	Latest permit	On the project	Description
S01311413 ↗	2295 RICHMOND AVENUE STATEN ISLAND	Alteration CO	Filed — no permit on record	11/04/2025	—	Owner INTERSTATE MANAGEMENT	—

Counts cover all 1 projects (1 DOB NOW). Dated by first filing; BIS projects by first permit issuance.

Every person filing for this firm, identified by their DOB NOW contact id (one id is one person). A person is listed under the firm they file for most.

Person	Filings	Most recent
Jeffrey Liebergen	1	10/30/2025

Who this entity's projects were filed with. Top 25 per group by shared jobs.

Name	Projects together	Most recent
INTERSTATE MANAGEMENT	1	11/04/2025

1 DOB NOW project, anchored the same way as Buildings Worked. Status is the project's permit state today: open = at least one permit currently issued. BIS projects show their raw permit status and are not counted as open.

All 1Filed only 1

1 project