Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. Every office link was opened and checked against the office's own site between September 24, 2026 and October 2, 2026.
New Castle County, Delaware, has about 588,000 residents (2024 Census Bureau estimate). The title to a parcel in New Castle County is in the deed records of the Recorder of Deeds and its taxable value is set by the Assessment Office; what is built on it is a matter for the city or the county. This guide says who keeps each record and where the page for each office is.
This guide covers deeds, assessed values, directory links, city permits, evictions and court cases, records requests and common questions.
Related guides: New Castle County public records, New Castle County arrest records, New Castle County warrants, New Castle County inmate search, New Castle County criminal records, Delaware arrest records and Delaware inmate search.
Deeds, Mortgages and Liens in New Castle County
Deeds, mortgages, liens and easements that affect title to land in New Castle County are recorded by the Recorder of Deeds, which indexes them by name and sells copies.
SearchSystems opened and checked the Recorder of Deeds' page at newcastlede.gov/144/Document-Search (page title: Document Search | New Castle County, DE), phone 302-395-5555, 87 Reads Way New Castle, DE 19720, Monday - Thursday 8:00 a.m. - 3:45 p.m., which answered when SearchSystems opened it on October 2, 2026.
Assessed Values and the Tax Roll in New Castle County
The Assessment Office sets the value each parcel in New Castle County is taxed on and keeps the parcel maps. Delaware's three counties completed court-ordered reassessments in 2024 and 2025, the first in decades, so current assessed values are new.
SearchSystems opened and checked the Assessment Office's page at newcastlede.gov/181/Assessment (page title: Assessment | New Castle County, DE), phone 302-395-5520, 87 Reads Way New Castle, DE 19720, which answered when SearchSystems opened it on October 2, 2026.
More Official Property and Land Records Pages for New Castle County
The SearchSystems directory, online since 1997, lists the official pages for New Castle County and Delaware. These property pages from its New Castle County listing were opened again on October 2, 2026 and each one still answers:
- ArcGIS Web Application (nccde.maps.arcgis.com)
Permits and City Records in the Cities of New Castle County
Building permits, zoning and code cases inside a city are the city's own records. The cities in New Castle County with a SearchSystems guide to their offices, with the city page SearchSystems verified:
- Wilmington: the city hall page SearchSystems verified is at wilmingtonde.gov (verified September 26, 2026).
- Newark: the city hall page SearchSystems verified is at newarkde.gov/8/Departments, phone 302-366-7000 (verified September 26, 2026).
- Middletown: the city hall page SearchSystems verified is at middletown.delaware.gov/contact-us, phone (302) 378-2711 (verified September 26, 2026).
Evictions and Court Cases About Land in New Castle County
Court cases about land from New Castle County, evictions among them, are filed in the Court of Common Pleas and the Justice of the Peace Courts or the Delaware Superior Court, New Castle County.
The court records page SearchSystems verified for the county is at courts.delaware.gov/docket.aspx.
Asking a County Office for a Record
Under the Delaware Freedom of Information Act a county office must answer a request within 15 business days, and it may charge the copy fees set by statute, plus staff time after the first hour.
Frequently Asked Questions
Who records deeds in New Castle County?
The Recorder of Deeds, at newcastlede.gov/144/Document-Search, phone 302-395-5555. Deeds, mortgages and liens on land in New Castle County are filed there, and the Assessment Office (newcastlede.gov/181/Assessment) has the assessment records.
Who sets the assessed value of a property in New Castle County?
The Assessment Office, whose page SearchSystems verified is at newcastlede.gov/181/Assessment.
Where are evictions from New Castle County filed?
In the Court of Common Pleas and the Justice of the Peace Courts. The file is public unless the court seals it.
How is property assessed in Delaware?
Delaware's three counties completed court-ordered reassessments in 2024 and 2025, the first in decades, so current assessed values are new.
Is this the official New Castle County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.