Can I Get a PE Stamp for My Existing Home Plans in Delaware?

Delaware requires the sealing engineer to be in responsible charge of the engineering — the engineer must have exercised engineering judgment over the design. For existing plans, this means independent verification: the engineer recalculates structural elements, checks code compliance under the applicable Delaware-adopted codes, and revises the drawings as needed before sealing. The seal must show the engineer's name, Delaware PE number, and date. Delaware engineers cannot seal work outside their area of competence. New Castle, Kent, and Sussex counties review the sealed package.

The review starts with the full drawing set: architectural, structural, foundation, and any prior calculations. The engineer checks the design against the design loads — coastal wind and flood design are the signature issues — verifies foundation design for the sandy soils and high water table, and recalculates beams, columns, foundations, and the lateral system. Floodplain requirements apply in mapped zones. Deficiencies get redlined; the drawings are revised until the engineer can take professional responsibility. Bring the geotechnical report, the design criteria, and any prior plan-check comments. Shore plans need wind and flood verification against the current maps.

Use this checklist before engaging an engineer for existing plans: • Engineer of record holds an active Delaware PE license, verifiable on the state roster • Plans are complete: architectural, structural, foundation, and prior calculations • Coastal wind design and flood requirements checked where applicable • Foundation design verified for sandy soils and high water table • Prior plan-check comments included so corrections aren't repeated • Engineer confirms they'll respond to plan-check corrections on sealed sheets • Scope agreement covers review, revision, sealing, and corrections • Seal shows name, Delaware PE number, and date on every sealed sheet