Bolthole Index

Delaware County, Pennsylvania

Zoning, building permits and septic rules in Borough of Millbourne, Pennsylvania

Borough of Millbourne is a borough in Delaware County, Pennsylvania. Septic permits inside Borough of Millbourne come from Delaware County (Delaware County Health Department, Environmental Health · (484) 276-2100). 5 rules below are quoted from official sources and independently re-checked, most recently on October 24, 2026. Rules for unincorporated land are on the Delaware County page.

Answers from the rulebook for Borough of Millbourne

Rules another office applies inside Borough of Millbourne

Borough of Millbourne does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Who permits septicCounty (with conditions)

    Individual and small-community on-lot sewage disposal systems serving land inside Millbourne borough, a Delaware County municipality.

    • Applies in accordance with Pennsylvania Act 537.
    “The Delaware County Health Department (DCHD) is responsible for inspections, investigations, permit issuance, and enforcement”
  • Septic permitRequired

    Installation, repair, or modification of an on-lot sewage disposal system serving land inside Millbourne borough.

    • Permit issuance depends on satisfactory completion of the application process and compliance with DCHD rules in effect when filed.
    • The process requires at least one acceptable percolation test and at least two acceptable soil-profile test pits.
    “Permits are required for the installation”
  • Septic inspectionRequired

    Soil and percolation testing for a proposed on-lot sewage disposal system serving land inside Millbourne borough.

    • The soil-condition inspection occurs before the percolation test.
    • A Department agent must be present for percolation tests.
    “An agent of the Department must be present”
  • Off-grid sanitationLimited

    On-lot sewage disposal proposed for land inside Millbourne borough.

    • Installation, repair, or modification requires a DCHD permit.
    • The application process requires specified forms and compliance with DCHD rules in effect when filed.
    “must first obtain a permit from the Department.”
  • Permit processPartial

    On-lot sewage disposal permitting for land inside Millbourne borough.

    • Applicant or authorized agent must submit the application record and rider with the permit fee before other forms.
    • Testing is not scheduled until forms and fees are submitted.
    • A Pennsylvania One-Call serial number is required before testing.
    “Testing will not occur without this number.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Borough of Millbourne or Delaware County directly.

  • Building permit — Residential construction inside Millbourne borough.
  • Owner-builder exemption — Owner-built residential construction inside Millbourne borough.
  • Building code adopted — Building construction inside Millbourne borough.
  • Inspections — Building work inside Millbourne borough.
  • Certificate of occupancy — Occupancy of buildings inside Millbourne borough.
20 more unanswered
  • Local zoning
  • Zoning districts
  • Minimum dwelling size
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Borough of Millbourne publishes no rule on the point, not that none exists. Delaware County’s page lists the county offices to call.

Off-grid gear

Going off-grid in Borough of Millbourne means bringing your own water and power. The kit we’d start with:

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

← All of Delaware County: county rules, score and offices