Bolthole Index

Delaware County, Pennsylvania

Zoning, building permits and septic in Chadds Ford Township, Pennsylvania

Chadds Ford Township, Delaware County, Pennsylvania requires a building permit under the Uniform Construction Code, and the township's own building department takes the applications in person12. The township also zones: its Zoning Officer issues zoning permits and the R-1 district asks for 2 acres per single-family lot34. Septic permits and wells come from the Delaware County Health Department, not the township5.

At a glance

Building permit
Required; the township applies the Pennsylvania Uniform Construction Code1
Zoning
Township zoning; the Zoning Officer issues zoning permits3
R-1 minimum lot
2 acres for a standard single-family lot4
R-1 setbacks
75 ft front, 50 ft side, 50 ft rear6
Minimum home size
750 sq ft of habitable floor space7
Septic
Delaware County Health Department5
Owner-builder
Pennsylvania has no general contractor license for most work; building permits still apply8

Who to call

Building permits

Chadds Ford Township Building Department and Zoning Officer

Building permit and zoning permit applications, inspections scheduling, inside Chadds Ford Township

610-388-8800

[email protected]

10 Ring Road, Chadds Ford, PA 19317

Septic permits

Delaware County Health Department, Environmental Health

Permits, inspections and enforcement for on-lot septic systems and well construction, including inside Chadds Ford Township

(484) 276-2100

[email protected]

Contact details are copied from each office’s official page and were checked against it on October 24, 2026.

Off-grid gear

Going off-grid in Chadds Ford Township means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Chadds Ford Township, PA?

Yes. Chadds Ford Township has adopted Pennsylvania's Uniform Construction Code as its building code1, and the township's building department takes the applications2. State rules require a permit before work begins on a residential building, with a short list of exceptions such as low fences and small retaining walls9. Construction also needs inspections and, at the end, a certificate of occupancy before anyone uses the building1011. Delaware County itself does not issue building permits; it sends questions to each municipality12.

Who issues building permits in Chadds Ford Township, and how do you reach them?

The Chadds Ford Township office at 10 Ring Road handles building and zoning permits2. Its page says permit applications are not accepted electronically and must be submitted in person with payment, and that multi-component building permit and grading permit applications need an appointment2. Call 610-388-8800 or email [email protected] to schedule2. Zoning permits go through the Zoning Officer, who reviews an application and plan and charges a fee from the township fee schedule13. The township's own rules apply inside Chadds Ford Township only; for land outside it, see the Delaware County page.

Does Chadds Ford Township have zoning, and what does it mean for lot size and setbacks?

Yes, Chadds Ford Township zones through its own ordinance, administered by the Zoning Officer3. Rules differ by district. In R-1, a standard single-family detached lot needs at least 2 acres4. Main buildings must sit at least 75 feet from the front lot line and 50 feet from side and rear lot lines6. Buildings, principal and accessory together, may cover no more than 15 percent of the lot, and height is capped at 40 feet1415. A driveway may not sit within 10 feet of a side or rear lot line16. Any residential structure township-wide must contain at least 750 square feet of habitable floor space7, which matters for tiny homes. We could not confirm the township's rules on RV occupancy, temporary camping or accessory dwellings, so ask the Zoning Officer before you plan around one.

How do septic permits work in Chadds Ford Township?

The Delaware County Health Department issues septic permits and well permits for homes in Delaware County, and does the inspections and enforcement517. A permit is required for new on-lot systems, repairs and modifications that need digging equipment, and larger new permits need soil testing18. A system cannot be covered before the final inspection19. Soil matters here: only about 3.6 percent of the county's soils rate as not limited for a conventional drain field, so expect a site evaluation and possibly an engineered system20. Pennsylvania's 10-acre owner-residence exemption exists but carries conditions, and the township's lot sizes make it unlikely to apply21. Whether public sewer is required at a given address is something we could not confirm; ask the township.

Building a home in Chadds Ford Township: the steps, in order

  1. Confirm the zoning district and its lot, setback and coverage rules with the Zoning Officer4.
  2. Before buying or designing, contact the Delaware County Health Department about soil testing and a septic permit18.
  3. Get a zoning permit from the Zoning Officer3.
  4. Book an appointment and submit the building permit application in person with payment2.
  5. If the driveway meets a state road, obtain a PennDOT highway occupancy permit22.
  6. Pass the required inspections and obtain the certificate of occupancy before moving in1011.

What stays with Delaware County, and what to check before you buy

Delaware County handles septic permits and wells for the township523. Pennsylvania has no general contractor license for most work, but townships may add their own requirements, so ask8. Mapped flood areas need a floodplain development permit from the municipality before work24. Delaware County is dense, about 3,138 people per square mile, and its effective property tax rate is about 2 percent2526. For land outside Chadds Ford Township, use the Delaware County page.

Watch-outs

  • Rules for RV occupancy, temporary camping, accessory dwellings and short-term rentals were not confirmed for Chadds Ford Township; ask the Zoning Officer at 610-388-88002.
  • Setbacks, lot sizes and coverage above are for the R-1 district only; other districts differ, so confirm your parcel's district first6.
  • Qualifying agricultural buildings are excluded from the state construction code, but zoning and other rules may still apply27.

Sources

  1. Chapter 59: Construction Codes - Chadds Ford Township, PA (Chadds Ford Township), quoted and re-checked
  2. Chadds Ford Township Building Department and Zoning Officer (chaddsfordpa.gov)
  3. Article XXVI: Additional Regulations - Chadds Ford Township, PA (Chadds Ford Township), quoted and re-checked
  4. Article IV: R-1 District (Residence) - Chadds Ford Township, PA (Chadds Ford Township), quoted and re-checked
  5. Sewage and Water, quoted and re-checked
  6. Article IV: R-1 District (Residence) - Chadds Ford Township, PA (Chadds Ford Township), quoted and re-checked
  7. Article XXVI: Additional Regulations - Chadds Ford Township, PA (Chadds Ford Township), quoted and re-checked
  8. Contractor Licensing (Pennsylvania statewide rule), quoted and re-checked
  9. Part XIV, Uniform Construction Code, Chapter 403 Administration (Pennsylvania statewide rule), quoted and re-checked
  10. Part XIV, Uniform Construction Code, Chapter 403 Administration (Pennsylvania statewide rule), quoted and re-checked
  11. Article XXVI: Additional Regulations - Chadds Ford Township, PA (Chadds Ford Township), quoted and re-checked
  12. Delaware County Planning Department - Development Review (2026 county census)
  13. Article XXVI: Additional Regulations - Chadds Ford Township, PA (Chadds Ford Township), quoted and re-checked
  14. Article IV: R-1 District (Residence) - Chadds Ford Township, PA (Chadds Ford Township), quoted and re-checked
  15. Article IV: R-1 District (Residence) - Chadds Ford Township, PA (Chadds Ford Township), quoted and re-checked
  16. Article IV: R-1 District (Residence) - Chadds Ford Township, PA (Chadds Ford Township), quoted and re-checked
  17. Delaware County Health Department, Environmental Health (delcopa.gov)
  18. Permits for On-Lot Sewage Disposal Systems, quoted and re-checked
  19. Sewage and Water, quoted and re-checked
  20. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  21. 25 Pa. Code § 72.22. Permit issuance (Pennsylvania statewide rule), quoted and re-checked
  22. Apply for a PennDOT Highway Occupancy Permit (Pennsylvania statewide rule), quoted and re-checked
  23. Sewage and Water, quoted and re-checked
  24. PennsylvaniA Floodplain Development Guide (Pennsylvania statewide rule), quoted and re-checked
  25. Population density: Bolthole Index county data
  26. Effective property tax rate: Bolthole Index county data
  27. Pennsylvania Construction Code Act — Chapter 1 (Pennsylvania statewide rule), quoted and re-checked

Written October 24, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Answers from the rulebook for Chadds Ford Township

Chadds Ford Township’s own rules

  • Building code adoptedAdopted (with conditions)

    Building work inside Chadds Ford Township.

    • The incorporated Uniform Construction Code is amended from time to time.
    “The Uniform Construction Code, contained in 34 Pa. Code Chapters 401 to 405, as amended from time to time, is hereby adopted and incorporated herein by reference as the building code of Chadds Ford Township.”
  • Certificate of occupancyRequired

    Any building or property inside Chadds Ford Township for which a building permit has been issued.

    • The certificate must be obtained from the Zoning Officer before the building or property may be used.
    “A Certificate of Occupancy shall be obtained from the Zoning Officer before any Building or property for which a building permit has been issued may be used.”
  • Minimum dwelling sizeSpecified

    Every structure in Chadds Ford Township used for residential purposes.

    habitable floor space: >= 750 square feet

    “Any Structure in Chadds Ford Township used for residential purposes shall contain a habitable floor space of no less than 750 square feet.”
  • Permit feesVariable (with conditions)

    Zoning permits for buildings, signs, and structures inside Chadds Ford Township.

    • Fee is set by the Township General Fee Schedule and must be paid before issuance.

    fee: Township General Fee Schedule

    “The Zoning Officer may issue a permit after receiving an application and accompanying Plan containing all information necessary to determine whether the proposed Building, Sign or other Structure complies with the provisions of this chapter and upon payment of a fee per the Township General Fee Schedule.”
  • Permit processPublished (with conditions)

    Zoning permits for buildings, signs, and structures inside Chadds Ford Township.

    • Application and accompanying plan must contain information necessary for the Zoning Officer to determine chapter compliance; applicable fee is required.
    “The Zoning Officer may issue a permit after receiving an application and accompanying Plan containing all information necessary to determine whether the proposed Building, Sign or other Structure complies with the provisions of this chapter and upon payment of a fee per the Township General Fee Schedule.”

Rules another office applies inside Chadds Ford Township

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

  • Minimum lot sizeDistrict specific (with conditions)

    R-1 single-family detached dwellings inside Chadds Ford Township.

    • Open-space-conservation-option lots have a separate 1-acre minimum.

    lot area: >= 2 acres (R-1 standard single-family detached dwelling)

    “R-1 Single-Family detached dwellings. Standard | Size (a) | Lot area | 2 acres, minimum”
  • SetbacksDistrict specific (with conditions)

    R-1 single-family detached dwellings inside Chadds Ford Township.

    • Corner lots have 75-foot yards fronting each street; two side yards are required except corner lots.

    front yard: >= 75 feet · side yard: >= 50 feet · rear yard: >= 50 feet

    “(d) | Front yard | 75 feet, minimum, from Front Lot Line to the nearest point of the main Building For Corner Lots, the Yards fronting on each Street shall have a minimum depth of 75 feet (e) | Side yards | 50 feet, minimum, between nearest point of the main Building to Side Lot Line There shall be 2 Side Yards except for Corner Lots, where there shall be at least 1 Side Yard with a minimum depth of 50 feet (f) | Rear yard | 50 feet, minimum, between nearest point of the main Building to Rear Lot Line”
  • Lot coverageDistrict specific (with conditions)

    R-1 single-family detached dwellings inside Chadds Ford Township.

    • Limit includes principal and accessory structures.

    building coverage: <= 15 percent (inclusive of principal and Accessory Structures)

    “(h) | Building coverage | 15%, maximum, inclusive of principal and Accessory Structures”
  • Building heightDistrict specific (with conditions)

    R-1 single-family detached dwellings inside Chadds Ford Township.

    • Subject to §§ 135-192 and 135-193.

    building height: <= 40 feet

    “(j) | Building height | 40 feet, maximum, subject to §§ 135-192 and 135-193”
  • Driveway accessLimited

    R-1 single-family detached dwellings inside Chadds Ford Township.

    • Applies to driveway, private street, or fire lane placement relative to side and rear lot lines.

    side or rear lot-line clearance: >= 10 feet

    “No driveway, Private Street or fire lane shall be located within 10 feet of any Side or Rear Lot Line”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Chadds Ford Township or Delaware County directly.

  • Owner-builder exemption — Owner-built residential construction inside Chadds Ford Township.
  • Inspections — Residential construction inside Chadds Ford Township.
  • Living in an RV — RV occupancy on private land inside Chadds Ford Township.
  • Camping on your land — Temporary camping on private land inside Chadds Ford Township.
  • Tiny homes — Tiny-home occupancy inside Chadds Ford Township.
11 more unanswered
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Building in a floodplain
  • Short-term rentals

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 Chadds Ford Township publishes no rule on the point, not that none exists. Delaware County’s page lists the county offices to call.

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