Glendale, AZ Building Setbacks & Zoning: Lot Coverage Limits (2026)
Key Facts
- Max coverage, R1-10/8/7/6
- 40 percent
- Max coverage, R1-4
- 45 percent
- Measured against
- Net lot area
- Common open space min
- 30% (non-residential uses only)
- Governing table
- Table 2.300-2, § 35.2.303
Summary
Glendale caps how much of a single-family lot a building can cover: Table 2.300-2 under Section 35.2.303 sets a 40 percent maximum lot coverage for the R1-10, R1-8, R1-7, and R1-6 districts, rising to 45 percent in the smaller-lot R1-4 patio-home district.
Table 2.300-2: Single Residence Districts Development Standards. Zoning District, Lot Coverage, maximum (%), Building Height, maximum (feet) [9], Common Open Space, minimum (% of net common lot area) [10]. R1-10 10,000 90 15-20 10 25 40 30 30. R1-8 8,000 80 15-20 5 & 10 [3] 20 40 30 30. R1-7 7,000 70 15-20 5 & 10 [3] 20 40 30 30. R1-6 6,000 60 15-20 5 & 10 [3] 20 [6] 40 30 30. R1-4 4,000 40 15-20 0 - 10 [4, 5] 15 45 30 30. [10]Applicable to non-residential uses only.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 115).
Full Breakdown
301) gets a slightly higher 45 percent cap to make attached and detached housing workable on smaller lots. The same table's Common Open Space column, a minimum of 30 percent of net common lot area in every R1 district, only applies to non-residential uses under footnote 10, so it doesn't reduce the buildable footprint on an ordinary single-family lot. 200. Because coverage, setback, and height limits all come from the same table, a design that pushes to the maximum front, side, and rear setbacks still has to fit within the 40 or 45 percent coverage ceiling, which in practice constrains lot layout more than the setbacks alone on narrower R1-6 and R1-4 lots.
Violations & Fines
Exceeding the maximum lot coverage figure in Table 2.300-2 is a Unified Development Code violation caught at plan review or field inspection. Because Title 35 doesn't set its own fine for a dimensional standard, Section 1-7's general penalty applies, making an uncorrected violation a Class 1 misdemeanor with each day counted as a separate offense, and the City can also pursue it as a civil code infraction in City Court.
Frequently Asked Questions
What's the maximum lot coverage for a house in Glendale?
Does the 30 percent open space requirement cut into my buildable area?
What happens if my house design exceeds the lot coverage cap?
Sources & Official References
Other rules in Glendale
Compare Glendale to another location·View the Arizona building setbacks & zoning overview
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Lot Coverage Limits in Nearby Cities
How other cities in Maricopa County handle lot coverage limits.