Off-Street Parking Standards for Mesa Transect 4 Zones (T4N, T4NF, T4MS)
In the City of Mesa, Transect 4 zones utilize a form-based approach to parking that prioritizes walkability, often waiving requirements for small commercial spaces and allowing on-street parking to count toward the total required for a project. While residential requirements in the Neighborhood (T4N) and Neighborhood Flex (T4NF) sub-districts typically require one space per unit, the Main Street (T4MS) sub-district removes the minimum requirement entirely to encourage high-density urban development.
Residential Parking Ratios
The City of Mesa establishes different residential parking requirements across the Transect 4 sub-districts to reflect the intended density and urban character of each area. In T4N and T4NF, the focus is on providing adequate on-site parking for single-family and smaller multi-family types, whereas T4MS prioritizes an ultra-urban environment where parking is limited.
| District | Residential Parking Requirement | Notes |
|---|---|---|
| T4N (Neighborhood) | 1 space per unit (Minimum) | No parking required for the first 2,000 sf of residential use, affordable units, or senior units [Section 11-58-5, Footnote 7]. |
| T4NF (Neighborhood Flex) | 1 space per unit (Minimum) | No parking required for the first 2,000 sf of residential use, affordable units, or senior units [Section 11-58-6, Footnote 9]. |
| T4MS (Main Street) | No Minimum; 1 space per unit (Maximum) | Designed to restrict the over-provision of parking in the downtown core [Section 11-58-7, Table G]. |
| Accessory Dwelling Units (ADU) | 0 spaces | No additional parking is required for an ADU in any Transect 4 district [Section 11-31-3(G)]. |
Commercial and Non-Residential Parking Ratios
For commercial projects within the Transect 4 Neighborhood Flex (T4NF) and Main Street (T4MS) districts, the City of Mesa provides significant exemptions to encourage small-scale business growth and adaptive reuse.
| Use Category | T4NF / T4MS Parking Requirement | Specific Exemptions |
|---|---|---|
| Retail and Service Uses | 2 spaces per 1,000 square feet | No parking required for ground floor units less than 5,000 sf [Section 11-58-6, Footnote 10]. |
| General Non-Residential | 1 space per 1,000 square feet | Ratios may be further reduced through shared parking agreements [Section 11-58-6, Footnote 11]. |
On-Street Parking Credits
A key feature of the City of Mesa’s Form-Based Code is the ability to use on-street parking to meet minimum off-street requirements. This allows developers in T4N, T4NF, and T4MS to count parallel or angled head-in parking spaces located immediately adjacent to their lot frontage toward their mandatory parking count [Section 11-58-12(D)(1)].
To qualify for this credit, the following conditions must be met:
- The parking must be legal, parallel, or angled head-in parking.
- The spaces must be located entirely along the frontage of the subject property.
- Spaces cannot be located within 30 feet of an intersection or 25 feet of a driveway.
- The spaces must remain public and cannot be designated exclusively for the development [Section 11-58-12(D)(1)].
Design and Location Standards
The City of Mesa regulates where parking can be placed on a lot within the Transect 4 districts to ensure that cars do not dominate the streetscape.
Setbacks and Placement
In all Transect 4 zones, parking must be screened from the front and the street by habitable space. In the T4N district, parking must be placed at least five feet behind the building’s primary façade [Section 11-58-5, Footnote 8]. In T4NF and T4MS, parking access drive widths are generally limited to 12 feet for the front entrance to minimize the impact on the pedestrian realm [Section 11-58-6, Table G].
Bicycle Parking
Mesa requires that all projects in Transect 4 zones provide bicycle parking in a secure environment. The ratio is set at one bicycle space for every 10 vehicular spaces, with a minimum requirement of two spaces and a maximum requirement of 20 spaces per project. This requirement is waived for residential buildings with four units or less [Section 11-58-12(D)(2)].
Sections Cited
- Section 11-31-3: Accessory Dwelling Unit
- Section 11-58-3.A: Composite Use Table
- Section 11-58-5: T4 Neighborhood (T4N) Standards
- Section 11-58-6: T4 Neighborhood Flex (T4NF) Standards
- Section 11-58-7: T4 Main Street (T4MS) Standards
- Section 11-58-12: Additional Standards for All Transect Zones
- Chapter 32: On-Site Parking, Loading, and Circulation