Reno Glazing and Transparency Requirements
In Reno urban residential districts (like MU-RES), ground floors facing Fourth or Virginia Street must have 40% transparency. Other street frontages require 25%. This may be reduced to 20% for residential living areas with administrative approval. Windows must be at least four feet high and highly reflective glass should be minimized to prevent glare.
The City of Reno’s zoning code regulates glazing—referred to as "transparency"—primarily within urban and mixed-use districts, including those designated for residential use. These standards are designed to activate street frontages, enhance safety, and establish a human scale through architectural variety.
Urban Residential and Mixed-Use Districts
In urban districts such as Mixed-Use Midtown Residential (MU-RES) and other Mixed-Use (MU) zones, specific transparency percentages are required for ground-floor facades facing public streets.
Ground-Floor Transparency Percentages
For new developments in these districts, the ground floor of street-facing facades must feature transparent doors or windows that are at least four feet in height. The required coverage is determined by the street type:
| Frontage Location | Minimum Transparency Requirement |
|---|---|
| Fourth Street or Virginia Street | 40% of the facade's horizontal length |
| All other street frontages | 25% of the facade's horizontal length |
| Non-street-oriented primary frontages | 25% of the facade's horizontal length |
Reduction for Residential Living Areas: The Administrator may approve a reduction in transparency requirements to 20% for residential living areas with ground-floor street-facing facades, provided alternative design provisions for ground-level interest are implemented [§ 18.04.1003(c)(3)].
Measuring Transparency
- Vertical Measurement: Ground-floor transparency is measured from floor plate to floor plate, assuming a minimum ground-floor height of 10 feet [§ 18.04.1005(d)(4)b].
- Visual Quality: The use of highly reflective glass must be minimized to prevent glare and reflections onto neighboring streets and properties [§ 18.04.1005(d)(4)b].
Single-Family and Large-Lot Districts
In standard Single-Family (SF) and Large-Lot (LL) residential districts, there are no specific numeric transparency percentages. Instead, windows are used as qualitative design elements to satisfy articulation and "street image" requirements.
Window Placement as Articulation
To prevent "blank walls," residential buildings must be articulated. Window openings are specifically listed as one of the design elements used to meet this requirement. A street-facing facade typically requires a combination of elements such as variations in roof form, wall offsets, and window openings to ensure architectural diversity [§ 18.04.1003(c)(2)].
Midtown Residential (MU-RES) Specifics
In the Mixed-Use Midtown Residential district, design standards emphasize a "quaint, residential character." Window and door placement must be used strategically to:
- Give prominence to pedestrian activity.
- Create a human scale through detail and form.
- Orient primary entrances toward the primary street [§ 18.04.1005(5)(b)].
Prohibited Materials and Compatibility
While glazing is encouraged, certain materials and configurations are restricted to protect the residential character:
- Reflective Materials: As noted in urban standards, highly reflective glass is discouraged [§ 18.04.1005(d)(4)b].
- Privacy Protections: For residential developments exceeding 21 units per acre, windows, balconies, and porches should be oriented away from shared property lines to protect the privacy of adjacent residents [§ 18.04.1005(d)(3)e].