A New Haven permit lookup and a Building Department records request answer different questions. The City’s Building Department hours page links to View Permit Information Online but warns that older permits and certificates may not be online while property records are being scanned. Its Building Department FOIA form separates an Open Records Search for open permits and zoning or building-code violations from Copies and Certified Copies of identifiable records. Choose based on the unanswered question rather than the building’s age.
Start with the City’s permit information
From the Building Department’s Research/FOIA/Certificates row, select View Permit Information Online; the City link opens the New Haven City Squared landing page. The City’s homepage separately promotes Municity for permit and license applications. The 2024 FOIA form says electronic permit copies may be available at citysquared.com. City Squared is the City’s online information starting point; older permits and certificates may be missing there while scanning continues. Keep the site address, unit or floor, any known permit number, and approximate work date while checking the record. Compare work description and status before assuming an address match belongs to your project. Our permit lookup by address guide explains how to compare changed or abbreviated addresses.
An empty online result doesn’t prove that no permit was issued, especially for older records while the City scans property files. If City Squared shows only a browser-compatibility notice, switch browsers or use the request routes below.
Pick the request that matches your evidence gap
The Building Department’s September 2024 FOIA form offers three checkboxes:
- Open Records Search: Ask the department to research whether open permits or zoning/building-code violations are recorded for an address or MBLU number. This is the right route when the question is what remains open; use Copies when you already know the exact document.
- Copies: Identify the particular permit, certificate or other Building Department file you want as an ordinary copy. Include the permit number and date if known so staff can locate it with reasonable specificity.
- Certified Copies: Choose this only when the recipient requires a certified version of a particular record. Confirm with that recipient which document and certification they need before requesting it.
The 2024 form prints a research fee and per-page copy prices; it says open-record research starts after the application and payment are received and may take up to two weeks depending on volume. Treat those as dated form values and check fees, payment instructions, and visit hours with the Building Department before sending payment. The form instructs written requests to the Building Official by mail at 200 Orange Street, 5th Floor, New Haven, CT 06510. Its printed research hours differ from the City’s current hours page, which lists walk-in research hours on Tuesday and Thursday, noon–2 p.m., and says research is not conducted by phone. Use that live page for scheduling a visit and call only to confirm the process.
When New Haven’s research letter applies instead of a CO copy
The City’s Additional Forms & Information page labels a Research Letter for properties without a certificate of occupancy on file in circumstances tied to older rules. That is a narrower service than obtaining a copy of an existing certificate. The same page says to check whether a CO is on file during research hours. Ask for the existing CO or its status first; a permit’s Issued status alone leaves final inspection and the CO open. Our final inspection status guide explains the separate evidence to seek.
For a difficult older file, give staff the full address and unit, any former address, MBLU or parcel identifier, permit number if known, approximate year and the exact record class. Ask whether the file survives off-line and whether an ordinary or certified copy can be supplied. The Office of Building Inspection and Enforcement administers construction permits within New Haven; first confirm the property is in the City rather than another town in New Haven County.
Before hiring for work in New Haven, check the contractor’s state registration; our Connecticut home improvement contractor lookup explains the eLicense search and the Guaranty Fund.
City of New Haven Building Department pages and the 2024 FOIA form checked September 28, 2026.