Building codes are adopted and enforced by the counties and municipalities (16 Del.C. ch. 76); local codes must meet the state energy code. Enforced by County and municipal building departments; Delaware Energy Office (DNREC) sets the minimum energy code. Checked on the primary source; the state record was last reviewed 2026-11-12.
Kent, New Castle and Sussex counties may adopt and enforce building, plumbing and electrical codes (sec. 7601). Under sec. 7602, county and municipal codes adopt the latest IECC within 12 months of the Delaware Energy Office's adoption; the Energy Office reviews the energy code every three years. Confirm local dates with the county.
Source: primary document
Statewide layer. County and city amendments sit on top; confirm the local office for the address.
In force; 16 Del.C. ch. 76 re-read Oct 21, 2026; energy code reviewed every three years (April 2026 revision reported earlier, not re-read; local dates not read)
These apply when the building has the equipment or fits the type named. The frequency is the standard one; your local official can set a stricter one, so confirm it for the address.
Building codes are adopted and enforced by the counties and municipalities (16 Del.C. ch. 76); local codes must meet the state energy code. Kent, New Castle and Sussex counties may adopt and enforce building, plumbing and electrical codes (sec. 7601). Under sec. 7602, county and municipal codes adopt the latest IECC within 12 months of the Delaware Energy Office's adoption; the Energy Office reviews the energy code every three years. Confirm local dates with the county.
County and municipal building departments; Delaware Energy Office (DNREC) sets the minimum energy code.
No statewide code. In force; 16 Del.C. ch. 76 re-read Oct 21, 2026; energy code reviewed every three years (April 2026 revision reported earlier, not re-read; local dates not read)
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