Business · retail

Riverside Opens First Dispensary on Magnolia Ave After Decade-Long Ban

California's 12th-largest city ends its adult-use moratorium with a single storefront launch Thursday.

By Mei Chen, Cannabis Tech ReporterPublished May 28, 20264 min read
A vintage lowrider car parked in front of colorful shops in San Francisco, California.

A vintage lowrider car parked in front of colorful shops in San Francisco, California.

Riverside, California opened its first adult-use cannabis dispensary Thursday at 3847 Magnolia Avenue, ending a decade-long municipal ban that made the city of 315,000 one of the largest prohibition holdouts in the state. The storefront, operated by Green Horizon Collective, began sales at 10 a.m. under a conditional-use permit approved by the Riverside City Council in March 2026.

The Launch

Green Horizon Collective opened its doors at 10 a.m. Thursday, marking the first legal adult-use transaction in Riverside history. The 2,400-square-foot store sits in the city's Arlington neighborhood, a commercial corridor zoned for cannabis retail under Riverside's revised ordinance. The company's permit filing shows the store carries 180 SKUs across flower, pre-rolls, vapes, edibles, and topicals, sourced from 14 California cultivators and manufacturers.

CEO Marcus Liu said the store processed 47 transactions in its first hour. Average ticket: $68. No lines formed outside. Walk-in traffic stayed steady through midday.

The Policy Reversal

Riverside lifted its adult-use ban in November 2025 when voters approved Measure C by a 52-48 margin. The ballot measure amended the municipal code to allow up to six dispensaries citywide, with a minimum 1,000-foot buffer from schools and parks. The city had prohibited storefront sales since 2016, despite California legalizing adult use statewide under Proposition 64 in November 2016.

Riverside's moratorium cost the city an estimated $3.2 million annually in forgone cannabis tax revenue, according to a fiscal analysis prepared by the city manager's office in September 2025. Neighboring Moreno Valley and Corona—both smaller cities—collected a combined $8.1 million in cannabis excise and gross-receipts taxes in fiscal year 2024-25.

The Permit Pipeline

Green Horizon holds one of three conditional-use permits issued by Riverside to date; two more operators are awaiting final inspections. Riverside received 19 applications during its initial 90-day window, which closed in February 2026. Applications were scored on a 100-point rubric weighing location compliance (30 points), security plans (25 points), community-benefit agreements (20 points), and local hiring commitments (25 points).

Green Horizon scored 89 points, the highest in the first round. The company committed to hiring 70% of its staff from Riverside ZIP codes and funding $50,000 annually in youth drug-education programs administered by the Riverside Unified School District.

The Tech Stack

The Magnolia Avenue store runs on Dutchie's e-commerce platform, integrated with METRC for California track-and-trace compliance and Flowhub for point-of-sale. Liu said the store processed 60% of Thursday's transactions via online pre-order, with customers picking up at a dedicated express counter. Payment is cash or debit only; Green Horizon doesn't accept credit cards due to federal banking restrictions.

The payment-rail problem remains the single largest operational friction point for any dispensary launch in 2026.

Green Horizon contracted with Hypur for cashless ATM transactions, allowing customers to withdraw funds on-site and complete purchases in a single step. The system charges a $3.50 convenience fee per transaction.

The Competitive Landscape

Riverside's six-license cap creates a constrained market in a city with more than twice the population of Palm Springs, which operates 16 dispensaries. The remaining two permits are expected to go live in June and July 2026, according to the city's cannabis program manager. All three current licensees are California-based independents. No multi-state operators applied in the first round.

For full background on this story, see the CannIntel topic hub on Riverside California Dispensary Rollout.

The Revenue Model

Riverside imposes a 6% gross-receipts tax on cannabis retailers, layered on top of California's 15% excise tax and local sales tax. The city projects $1.8 million in cannabis tax revenue in fiscal year 2026-27, assuming six stores reach full operation by September 2026. That estimate is based on an average annual gross revenue of $5 million per store, a figure derived from comparable cities in Riverside County.

Green Horizon's lease runs $18,000 per month for the Magnolia Avenue space, according to public filings. Buildout, security infrastructure, and permitting fees cost the company $340,000.

What's Next

Riverside will open a second application window in October 2026 if any of the initial six permits are revoked or surrendered. The city's ordinance includes annual compliance audits and a three-strike system for violations of operating conditions. Liu said Green Horizon is evaluating a second location in the city's Eastside, pending zoning clarification from the planning department.

The next signal: whether Riverside's conservative electorate tolerates the rollout or forces a repeal referendum in 2027. Measure C passed by fewer than 4,000 votes.

Sources

RiversideCaliforniadispensary openingMeasure CGreen Horizon CollectiveDutchie
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