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Property Owner Services
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Assessment & Tax Exemptions
Learn more about the assessment process.
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Home Improvements
View rules on making home improvements, and the the permits you need to take on such projects.
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Non-Residential Permits
Download non-residential permit applications.
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Parcel Search
Search for parcels in New Castle County.
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Permit Search
Search for building and use permits issued in New Castle County (does not include incorporated towns/cities).
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Residential Use Information
Peruse the rules and regulations of residential use.