Reviewed against the Denver Zoning Code on June 2, 2026. Denver sets its bicycle parking rules in Article 10, Division 10.4, Section 10.4.3, with the required amounts in the bicycle parking required-amount table (Section 10.4.3.5). Requirements change and vary by zone district and neighborhood context. Always confirm the current code with Denver Community Planning and Development at permit time. This is planning guidance, not legal or permit advice.
Short answer
Denver sets bicycle parking minimums in its Zoning Code, Article 10, Section 10.4.3, and the amounts vary by the site’s neighborhood context. For a multi-unit residential building, the requirement runs from 1 space per 5 dwelling units in the lower-density contexts up to 1.1 spaces per unit in the densest downtown context, with most close-in urban neighborhoods at 1 per 4 units or 1 per 2 units. Denver then splits every required count 80 percent enclosed (secure, long-term) and 20 percent fixed rack (short-term). Confirm your zone district’s context before sizing the room.
Long-term versus short-term in Denver
Denver does not use the words “long-term” and “short-term.” It uses two facility types and splits the required count between them (Section 10.4.3.4):
- An enclosed bicycle parking facility is the secure, weather-protected storage: “enclosed bicycle storage in lockers, a room within a building, or within a parking structure,” accessible to occupants, secure, well lighted, and weather resistant, with “a minimum of 15 square feet in area” per space. This is Denver’s version of long-term parking.
- A fixed bicycle rack parking facility is the publicly accessible, securely anchored rack near entrances. This is Denver’s version of short-term parking.
For multi-unit residential, the split is fixed at 80 percent enclosed and 20 percent fixed rack. So the great majority of a Denver apartment building’s bike parking has to be the secure room type.
What Denver requires for multifamily
The multi-unit ratio is set by neighborhood context in the bicycle parking required-amount table (Section 10.4.3.5). The exact figures:
| Neighborhood context | Multi-unit minimum | Enclosed / fixed split |
|---|---|---|
| Suburban; Urban Edge | 1 per 5 units | 80% / 20% |
| Urban; General Urban; all I-MX districts | 1 per 4 units | 80% / 20% |
| Urban Center; Campus; Downtown (D-LD, D-GT, D-AS and related) | 1 per 2 units | 80% / 20% |
| Downtown D-CPV-T, D-CPV-R, D-CPV-C | 1.1 per unit | 80% / 20% |
Source: Denver Zoning Code, Section 10.4.3.5 Bicycle Parking Required Amount and Design. Two calculation rules matter (Section 10.4.3.2): “When a primary use’s required amount of bicycle parking is 2 spaces or less, the use shall provide a minimum of 2 bicycle parking spaces in a fixed rack bicycle parking facility,” and fractional spaces “are rounded to the nearest whole number, with one-half counted as an additional space.”
The Denver wrinkle: context sets the ratio, and the split is 80/20
Two Denver-specific things decide the count. First, the ratio is not one number; it scales with the neighborhood context on your zone district, from 1 per 5 units out in the suburban context to 1.1 per unit in the densest downtown context. Second, whatever the total comes to, 80 percent of it has to be enclosed, secure storage and only 20 percent can be fixed racks. So a Denver bike room is mostly the locked-room type, not a wall of sidewalk racks. One note on scope: Section 10.4.3 does not apply in the D-C, D-TD, or D-CV downtown districts, which use the separate downtown parking standards in Section 8.3.1.5.
What Denver requires for commercial uses
Commercial ratios also vary by context (a sample, with the enclosed/fixed split shown):
| Use | Minimum (range by neighborhood context) | Enclosed / fixed split |
|---|---|---|
| Eating & Drinking Establishments | 1 per 5,000 sq. ft. GFA up to 1 per 1,000 sq. ft. GFA | 0% / 100% |
| Office, All Others | 1 per 20,000 sq. ft. GFA up to 1 per 4,000 sq. ft. GFA | 60/40 to 20/80 depending on zone district |
| Retail Sales, Service & Repair, All Others | 1 per 20,000 sq. ft. GFA up to 1 per 4,000 sq. ft. GFA | 60/40 to 20/80 depending on zone district |
Source: Section 10.4.3.5, under the “COMMERCIAL SALES, SERVICES, & REPAIR PRIMARY USE CLASSIFICATION” heading. The exact commercial figure and enclosed/fixed split depend on the neighborhood context; pull the specific row for the use and district.
Design standards Denver writes into the code
Section 10.4.3.4 sets the standards that decide whether the facility counts: enclosed spaces must be in lockers, a room within a building, or a parking structure, secure, well lighted, and weather resistant, at a minimum of 15 square feet each; fixed racks must be securely anchored and publicly accessible. Under Section 10.4.3.3, the Zoning Administrator may grant a maximum 20 percent reduction in the required number of spaces and a maximum 20 percent adjustment between enclosed and fixed facilities. Each enclosed space is a minimum of 15 square feet, and the Zoning Administrator may reduce that enclosed-space area by up to 6 square feet if a more efficient layout is provided.
What the multifamily number looks like in practice
Take a 120-unit apartment building and run it through the contexts.
- General Urban context (1 per 4 units): 120 / 4 = 30 spaces; at 80/20 that is 24 enclosed (secure, long-term) and 6 fixed rack.
- Urban Center context (1 per 2 units): 120 / 2 = 60 spaces; 48 enclosed and 12 fixed rack.
- Suburban context (1 per 5 units): 120 / 5 = 24 spaces; about 19 enclosed and 5 fixed rack.
The context swings the count by more than two to one, and in every case most of it is the secure enclosed room. Pull your zone district’s neighborhood context first, because it decides the size of the room.
How Denver relates to Colorado and the California cities
Colorado has no single statewide bicycle-parking mandate equivalent to California’s CALGreen; in Denver, the Zoning Code sets the counts directly. Denver’s approach is distinctive in two ways the California cities are not: the ratio scales with neighborhood context, and the code hard-codes an 80/20 split toward enclosed, secure storage. If you work across multiple states, treat each city’s code as its own; for the California framework, see our California multifamily bike parking overview, and for the city-by-city set, the bike parking codes by city hub.
Where each type goes in a Denver building
- Enclosed (long-term) is the secure, covered, locked storage that has to make up 80 percent of the count: a ground-floor or garage-level bike room built from high-density long-term bike room layouts using two-tier (Double Docker) and vertical (Offset) racks. For the density tradeoff, see vertical vs two-tier bike parking and the two-tier ceiling-height requirements, plus bike lockers vs bike rooms for the format choice.
- Fixed rack (short-term) is the securely anchored, publicly accessible racks near entrances for the other 20 percent.
What to send Ground Control Systems for a compliant layout
We do not set your code count. That is the project team’s call with Denver Community Planning and Development and your code consultant, starting with the use, the unit count, and the zone district’s neighborhood context. What we do is make the layout work once the count is known. Send us:
- The project address and use (residential unit count, or commercial floor area and use), plus the zone district and neighborhood context.
- The floor plan or a program sketch showing where the enclosed bike room and the fixed-rack zone could go, and the finished ceiling height.
- Whether the project is pursuing LEED, which can set its own bike-parking threshold.
We come back with a bike-room layout, the product mix that fits the floor plate (vertical, two-tier, lockers, floor-mount racks, and scooter racks where relevant), the 80/20 enclosed-versus-fixed split on the plan, and a quote. Reach us at 800-630-7225, info@groundcontrolsystems.com, or the contact page. The Download Center has CAD files and product specifications. For layout and code-support help, see services.
Frequently asked questions
Q: How many bike parking spaces does a Denver apartment building need?
It depends on the neighborhood context of the zone district. Section 10.4.3.5 sets the multi-unit ratio from 1 per 5 units (suburban / urban edge) to 1 per 4 units (urban / general urban), 1 per 2 units (urban center / campus / some downtown), or 1.1 per unit (the densest downtown context). Denver then requires 80 percent of the count be enclosed and 20 percent fixed racks. A 120-unit building in the general-urban context works out to 30 spaces (24 enclosed, 6 fixed).
Q: What is the 80/20 split?
For multi-unit residential, Denver requires 80 percent of the bicycle parking to be in an enclosed facility (lockers, a room within a building, or a parking structure) and 20 percent in fixed racks. Most of a Denver apartment building’s bike parking is the secure, weather-protected room type.
Q: What is the difference between an enclosed facility and a fixed rack?
An enclosed bicycle parking facility is secure, weather-resistant storage in lockers, a room, or a parking structure, at a minimum of 15 square feet per space. A fixed bicycle rack facility is a securely anchored, publicly accessible rack near entrances. Denver splits the required count between the two.
Q: Does Denver follow a statewide code like California’s CALGreen?
No. Colorado has no single statewide bicycle-parking mandate like CALGreen. In Denver, the Zoning Code (Article 10, Section 10.4.3) sets the counts directly, scaled by neighborhood context.
Q: Is this legal advice?
No. This is a plain-language overview of how Denver structures its bicycle parking requirements. It is not legal or permit advice and is not a substitute for the current code text. Confirm specifics with Denver Community Planning and Development and your project’s code consultant.
Sources
- Denver Zoning Code, Article 10 General Design Standards, Division 10.4, Section 10.4.3 (Bicycle Parking) and Section 10.4.3.5 (Bicycle Parking Required Amount and Design), official City and County of Denver Article 10 PDF (footer “Republished February 25, 2025”; link resolves to the /v/12 asset): Denver Zoning Code Article 10 (PDF)
- City and County of Denver, Community Planning and Development, Denver Zoning Code: denvergov.org Denver Zoning Code