Reading, PA Building Setbacks & Zoning: Lot Coverage Limits (2026)
Key Facts
- R-1A max building coverage
- 15% of lot area
- R-1A max impervious coverage
- 25% of lot area
- R-2 detached dwelling coverage
- 40% building / 50% impervious
- R-2 townhouse coverage
- 60% building / 75% impervious
- Impervious surface test
- runoff coefficient 0.6+, City Engineer decides
- Civil penalty
- $100-$500 per day, plus costs
Summary
Reading's zoning code caps how much of a lot can be covered by buildings and by impervious surfaces, with the exact numbers set district by district in Chapter 600's dimensional tables. In the R-1A Residential District, City Code § 600-801 limits building coverage to 15% of lot area and impervious coverage, which includes roofs, driveways, patios and other hard surfaces, to 25%. Denser districts like R-2 allow far more.
§ 600-801. R-1A Residential District.
A. Dimensional requirements. Maximum Building Coverage 15%, Maximum Impervious Coverage 25%, Maximum Height 38 ft., Minimum Lot Width 65 ft., Minimum Front Yard Setback 25 ft., Minimum Rear Yard Setback 30 ft., Minimum Side Yard Setback 10 ft. per side, Minimum Lot Size 20,000 sq. ft. ... IMPERVIOUS COVERAGE — The impervious coverage is the percentage of the lot area of a lot that is covered by building roofs, stone, concrete or asphalt, and/or other man-made surfaces having a coefficient of runoff of 0.6 or greater. The City Engineer shall determine whether a surface would meet this definition.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-8: Current through August 10, 2026).
Full Breakdown
Every residential and commercial district in Chapter 600 carries its own dimensional table, and lot coverage is one of the columns. A, alongside a 20,000-square-foot minimum lot, 65-foot minimum width, 38-foot maximum height, and 25/30/10-foot front, rear and side yard setbacks. A is denser: 30% maximum building coverage and 40% maximum impervious coverage on a 6,600-square-foot minimum lot. A varies coverage by use on the same lot: a one-family detached dwelling caps at 40% building and 50% impervious coverage, while a one-family attached (townhouse) unit can reach 60% building and 75% impervious coverage.
6 or greater,' and gives the City Engineer authority to determine whether a given surface meets that test. LOT COVERAGE is defined to mean the same thing as impervious coverage. C(2) separately bars a new principal building if it would require regrading more than 3,000 square feet of land with a natural slope over 25%, an additional check on site disturbance beyond the raw coverage percentage. A, issued only after the plan is reviewed against the applicable district table.
Violations & Fines
Exceeding the coverage limits is enforced as a civil matter under § 600-206. Anyone found liable in a civil enforcement proceeding before a Magisterial District Judge pays a judgment of not less than $100 and not more than $500, plus court costs and the City's reasonable attorney fees. Each day the excess coverage continues is a separate violation, so an unpermitted addition or paved area left in place accrues daily. The chapter does not authorize imprisonment, and judgments unpaid or unappealed can be enforced under the civil procedure rules.
Frequently Asked Questions
What is the maximum lot coverage in Reading's R-1A district?
What counts as impervious coverage under Reading's zoning code?
Do lot coverage limits change between Reading's residential zones?
What happens if I build over Reading's lot coverage limit?
Sources & Official References
Other rules in Reading
Compare Reading to another location·View the Pennsylvania building setbacks & zoning overview
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