---
canonical: https://dogpolicies.com/places/bayside-joinville-park-dog-park/
title: "Bayside-Joinville Park Dog Park: dog rules"
license: CC-BY-4.0
attribution: "DogPolicies, dogpolicies.com, CC BY 4.0, verified 2026-10-29"
verified_at: 2026-10-29
review_due: 2026-11-28
freshness: fresh
confirmed_by: none
uid: plc_zvre7va0rtd0ydtc
json: https://dogpolicies.com/api/v1/places/bayside-joinville-park-dog-park.json
---

Bayside-Joinville Park Dog Park (San Mateo, CA): Yes. This is an off-leash dog park. Source: City of San Mateo, checked 2026-10-29. DogPolicies record: https://dogpolicies.com/places/bayside-joinville-park-dog-park/ (CC BY 4.0; cite with link).

# Bayside-Joinville Park Dog Park

**Yes. This is an off-leash dog park.**

Type: park. Location: San Mateo, San Mateo County, California. Managed by City of San Mateo.

## Rules

| Rule | Value | Source | Verified | Freshness |
| --- | --- | --- | --- | --- |
| Dogs allowed | Yes (Near the wastewater treatment plant off Detroit Drive. Open 6 a.m. to 10 p.m.) | [1] | 2026-10-29 | fresh |
| Leash | Off leash allowed under voice control | [3] | 2026-10-29 | fresh, inferred from agency |
| Dog park on site | Yes (Fenced.) | [1] | 2026-10-29 | fresh |

## Rules to know

- Dogs must be leashed everywhere except a designated off-leash area during its hours (San Mateo Municipal Code 8.02.070). Leashed dogs are welcome in the city's other parks. [3]
- No more than three dogs per handler. [3]
- Keep your dog under voice command and watch it at all times; leave aggressive dogs at home. [3]
- Pick up after your dog; bags and trash cans are provided. [3]
- No food or treats. [3]
- Dogs must be licensed and vaccinated. Female dogs in heat are not allowed. [3]
- Closely supervise children under 14, and ask before they approach a dog. [3]
- Off-leash fields close in wet weather. [3]

## Sources

1. City of San Mateo, "Dog Parks & Off-Leash Areas" (government, checked 2026-10-29): https://cityofsanmateo.org/2332/Dog-Parks-Off-Leash-Areas
   > Bayside-Joinville Park The site is a fenced area near the Waste Water Treatment Plant off Detroit Drive. | Daily | 6 a.m. | 10 p.m.
2. U.S. Census Bureau, "Location: TIGER/Line 2025 area landmark "Joinville Park", internal point" (government, checked 2026-10-29): https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-line-file.html
3. City of San Mateo, "Dog Parks & Off-Leash Areas" (government, checked 2026-10-29): https://cityofsanmateo.org/2332/Dog-Parks-Off-Leash-Areas
   > *Dogs must be kept on a leash at all times except when in the designated DOLA during permitted times. (SMMC 8.02.070) ... Dogs are allowed in our other parks, but must be kept on a leash. ... we enforce a “no more than 3 dogs per handler” rule. ... You should be in voice command of your dog at all times

Verified October 29, 2026; re-check due 2026-11-28. Freshness: fresh.
Corrections: https://dogpolicies.com/corrections/?place=bayside-joinville-park-dog-park
Record: https://dogpolicies.com/places/bayside-joinville-park-dog-park/ · JSON: https://dogpolicies.com/api/v1/places/bayside-joinville-park-dog-park.json · Methodology: https://dogpolicies.com/methodology/