Cannabis Dispensary Santa Ana OC3

4.4
StarStarStarStarHalf Star
(585 Reviews)
Store hoursMon-Thu 9am - 9:30pm | Fri-Sun 8am - 9:30pm

Catalyst OC3 is a licensed recreational and medicinal cannabis dispensary at 3122 S Halladay St, off Alton Avenue and a short run from SR-55.

OC3 stocks edibles, vapes, flower, tinctures, pre-rolls, concentrates, and topicals, and the online menu lets you place an order ahead for pickup.

Location marker

Directions & Location — Cannabis Santa Ana OC3

Facility information

About this Facility

  • License type: Recreational (21+) and medicinal (18+ with a valid physician's recommendation)

  • State license: C10-0001434-LIC

  • Parking: Parking in front of the store, with security on site while you shop

  • Payment: Debit card and cash. No credit cards. ATM inside the store

  • Accessibility: Wheelchair accessible

  • Ordering: Order online for in-store pickup. No delivery, no shipping, no curbside

  • Second-time discount: 30% off your second purchase

  • Pets: Service animals only

About This Location

Catalyst on Halladay Street

This location opens at 8am Friday through Sunday, an hour earlier than its Monday-through-Thursday opening time.

OC3 posts out-the-door prices: tax is in the number before you reach the register.

Products carrying the Cat 4 mark have cleared a wider pesticide panel than California asks for, one we put in place when state testing proved it was missing harmful chemicals.

Read our full story here.

The Neighborhood

Halladay Street sits in an industrial pocket west of SR-55 and north of I-405, south of downtown Santa Ana and north of the airport.

South Coast Plaza is 1.9 miles southwest and John Wayne Airport 2.2 miles south. Downtown Santa Ana and the zoo are both about 2.8 miles north.

Local Deals

Check out the latest deals and discounts available at Catalyst Cannabis Santa Ana OC3.

View Deals at Cannabis Santa Ana OC3

Local Deals and Rewards

OC3 runs the same rotating hookups as the rest of Catalyst.

Running chain-wide right now, availability varies by location:

Deal Discount
Catalyst house brands (Cat 4 and MJuice) 20% off
Connected and Alien Labs 30% off
Claybourne 20% off
Sluggers 25% off
Cannabiotix 25% off

Your second OC3 order is 30% off. For the rest, see the full deal list and join Catalyst Rewards.

Reviews section

Customer Reviews

OC3 sits at 4.4 stars on Google, from 585 reviews. Here's how shoppers describe it:

"Our budtender was super knowledgeable and friendly, very patient with us asking questions and wanting to see more products. We'll definitely be back! Best dispensary in town!!" - Tanja Starke. Google Review, September 2025.

"Willow is awesome and was very helpful and answering a few questions I had. She is very personable and although my action with her was brief, it was enough to make me want to return to this location!" - Christina Rose. Google Review, July 2026.

"Come in with a frown and they sure do turn it upside down. Staff is amazing, professional and always friendly.!" - Luis Diaz. Google Review, February 2026.

What We Carry

A walk through the OC3 sales floor.

Cannabis Flower

Cereal Milk, Royal OG, Black Mamba, and Blue Zushimi are part of the current OC3 flower lineup, priced by weight from one gram.

Who's growing what changes with the menu, so check the live flower selection or ask what landed most recently.

Browse the flower menu.

Pre-Rolls

A pre-roll saves you the grinder and the papers. Singles and multi-packs both sit on this shelf, along with empty cones, which are paper on their own for filling with flower you buy separately.

Infused versions have concentrate worked into the flower before rolling, which usually makes them more potent than a standard roll.

See the pre-roll menu.

Vapes and Cartridges

Start with the device. A standalone cartridge needs a compatible battery; an All-in-One already has one built in and charged.

For our house brand, figure $19.50 per gram cartridge and $23 per gram All-in-One from Cat 4, prior to discounts.

See the vape menu.

Concentrates

Concentrates are extracts sold by the gram, and the names describe texture rather than grade. Whether a jar is budder, shatter, or crumble depends on processing.

Nearly all of it is meant for dabbing, and the right pick depends on your gear: pen, e-rig, or classic rig.

See the concentrate menu.

Edibles

Gummies lead the shelf here; baked goods, mints, and chocolates fill out the rest.

The number that matters is milligrams per piece, not the pack total. Servings top out at 10mg THC and whole packages at 100mg under California rules, and onset can run to two hours.

See the edibles menu.

Topicals and Tinctures

Topicals go onto the skin as balms, lotions, and patches. Some contain THC, so a quick look at the cannabinoid ratio tells you whether one is intoxicating.

Tinctures are liquid extracts dosed with a marked dropper, either held under the tongue or poured into a drink.

Browse topicals and tinctures.

Neighborhoods and Landmarks We Serve

OC3's spot between two freeways puts central Orange County close at hand.

  • South Coast Plaza, Costa Mesa: About 1.9 miles southwest

  • John Wayne Airport: About 2.2 miles south

  • Downtown Santa Ana: About 2.8 miles north

  • Santa Ana Zoo: About 2.8 miles north

  • Discovery Cube Orange County: About 4.5 miles north

Costa Mesa, Irvine, Tustin, Fountain Valley, Huntington Beach, and Orange are all a quick trip away.

Buying Cannabis Legally in California

Two dates matter: 1996, when medical cannabis became legal, and 2018, when licensed recreational sales began under Proposition 64.

Here's how it plays out at OC3:

  • ID first: a valid, government-issued photo ID showing you're at least 21 covers recreational buying. For medicinal buying from 18, the key document is a physician's recommendation, with a county MMIC optional.

  • The recreational ceiling each day is 28.5 grams of flower plus 8 grams of concentrate. A physician's recommendation lifts it to 8 ounces, and above that where the recommendation calls for more.

  • Visitors from out of state can buy recreational cannabis at OC3 on the same terms as residents. Only medicinal buying requires a California physician's recommendation.

  • Consuming cannabis is restricted to private property, so not on streets, sidewalks, or in parks, and it stays inside California.

The blog has more: cannabis law in California and how to buy weed in the state.

FAQ section

Dispensary in Cannabis Santa Ana OC3 FAQs

We can't wait to welcome you to our dispensary in Cannabis Santa Ana OC3. As you plan your visit, here are a few helpful things to keep in mind.

3122 S Halladay St Ste A, Santa Ana, CA 92705, in the industrial area off Alton Avenue.

Monday through Thursday it's 9am to 9:30pm; Friday through Sunday the day starts at 8am, still closing at 9:30pm.

Friday, Saturday, and Sunday start at 8am rather than 9am. The Santa Ana Pullman Street store and Planet Catalyst keep the same Friday-to-Sunday hours.

Yes. Spaces are out front on Halladay Street, with on-site security while you're in the store.

Yes. Wheelchair users have access to the OC3 store.

SR-55 is just east of the store. Dyer Road is the nearest major interchange; MacArthur Boulevard is another option from farther south. From Dyer, head west toward Halladay Street.

About 2.2 miles south. Note that cannabis cannot be taken on a flight, since it remains illegal under federal law for air travel.

No. Adults 21+ buy recreational with photo ID. For medicinal, 18 is the minimum age and a physician's recommendation is required; the MMIC is extra.

OC3 serves both, on license C10-0001434-LIC.

The daily recreational amount is as much as one ounce of flower, with 8g of concentrate on top. A physician's recommendation opens up 8 oz of flower, more if it says so.

OC3 takes debit and cash only, with an in-store ATM if you need it.

No delivery. OC3 serves customers in person and through online pickup orders, and Catalyst never ships or mails cannabis.

No first-time discount. But second-timers do get 30% off their second purchase here.

Yes, it's called the Catalyst Rewards Club. Points come with every purchase, members get special pricing and first access to events, and signing up is free.

Think of it as a fourth tier of testing on top of the state's three. Brands choose to submit, passing items are marked in store, and failures are removed from the shelf.

Yes. OC3's tinctures and topicals include low-THC and high-CBD products for adults 21 and over seeking a non-intoxicating option.

Yes. Build the order on the online menu, then collect at the Halladay Street counter with valid ID. There's no curbside service.

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