Determine which permits are required for your renovation scopeCriticalMost structural changes, electrical, plumbing, and HVAC work require building permits. Cosmetic changes (painting, flooring) typically do not.
Check if your project requires zoning approval or a varianceCriticalAdditions that increase building footprint, height, or lot coverage may require zoning review. Non-conforming structures may need a variance.
Verify if a site plan or survey is required with your permit applicationMany jurisdictions require a current site plan showing the existing structure and proposed changes relative to property lines.
Check for demolition permit requirements if removing walls or structuresPartial or full demolition often requires a separate permit, especially for load-bearing walls or if asbestos may be present.

Confirm your addition stays within required setback linesCriticalAny extension of the building footprint must comply with front, side, and rear setback requirements for your zoning district.
Verify that the renovation does not exceed maximum building heightAdding a second story or raising the roofline could violate height limits. Check how height is measured in your jurisdiction.
Calculate updated lot coverage and FAR after renovationFloor Area Ratio (FAR) and lot coverage maximums may limit how much square footage you can add.
Check if the existing structure is non-conforming (grandfathered)Non-conforming structures may have restrictions on the extent of renovations allowed. Some codes limit improvements to a percentage of the structure's value.

Check if the property is in a historic district or has landmark statusHistoric properties may require design review board approval before any exterior changes, and sometimes interior structural changes.
Review design guidelines for exterior materials, colors, and architectural featuresHistoric districts often restrict window replacements, siding materials, roofing, and additions to maintain neighborhood character.
Determine if a Certificate of Appropriateness (COA) is requiredMost historic districts require a COA before issuing building permits for exterior work.

Verify your contractor holds required state and local licensesCriticalContractor licensing requirements vary by state. Check your state's contractor licensing board for active license status.
Confirm the contractor carries general liability and workers' compensation insuranceCriticalWithout proper insurance, you as the homeowner may be liable for injuries or property damage during construction.
Check if your homeowner's insurance covers renovation-related damageNotify your insurer about planned renovations. Some policies exclude coverage for damage during construction.
Get multiple written estimates detailing scope, materials, timeline, and payment scheduleA detailed contract protects both parties. Avoid paying more than 10-30% upfront depending on your state's consumer protection laws.

Understand the inspection schedule for your project typeMost permitted work requires inspections at various stages: foundation, framing, electrical rough-in, plumbing rough-in, insulation, and final.
Check energy code compliance requirements for your renovationMany states require energy code compliance for renovations, including insulation upgrades, window efficiency ratings, and HVAC standards.
Verify ADA compliance if converting to accessible useIf adding an accessible bathroom, entrance, or converting for aging-in-place, check ADA and local accessibility requirements.

Home Renovation Zoning Checklist