Zoning Districts in Philadelphia
Browse the zoning districts in Philadelphia, PA. Each zone type defines permitted uses, setbacks, height limits, and lot coverage requirements.
Philadelphia divides its land into 25 primary zoning districts. Select a zone below to view its permitted uses, setback requirements, height limits, and lot coverage standards.
Zoning Districts
RSA-1
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RSA-2
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RSA-3
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RSA-4
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RSA-5
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RSD-1
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RSD-2
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RSD-3
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RM-1
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RM-2
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RM-3
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RM-4
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CA-1
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CA-2
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CMX-1
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CMX-2
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CMX-2.5
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CMX-3
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CMX-4
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CMX-5
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IRMX
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I-1
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I-2
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I-3
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ICMX
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About Philadelphia Zoning
Zoning districts define what can be built, how large structures can be, and how close buildings can be to property lines and neighboring structures. Understanding the zoning district for your property is the first step in any building project in Philadelphia.
Source: Philadelphia Code Title 14 (Zoning and Planning) — Accessory Residential Units; Philadelphia Construction Code. Last verified April 6, 2026. View source