Route 321 serves as Auckland’s dedicated public transit health connector
Look at the destination headboard of an AT Metro bus in downtown Auckland, and you will occasionally see one marked with a distinctive purpose rather than a single suburb: ‘321 HOSPITALS’.
Route 321 serves as Auckland’s dedicated public transit health connector. Originating from downtown Britomart and terminating at South Auckland’s Middlemore Station, it directly links three key medical facilities across the isthmus: Auckland City Hospital, Greenlane Clinical Centre, and Middlemore Hospital. For outpatients, visitors, and healthcare staff facing notorious hospital parking shortages and steep hourly rates, Route 321 provides a doorstep alternative.
1. Route Snapshot & Timetable Rules
| Metric | Service Details |
|---|---|
| Start – Finish | Britomart (Commerce St) ⇄ Middlemore Station & Hospital |
| Hospitals Served | ① Auckland City Hospital (Grafton) ② Greenlane Clinical Centre (Epsom/Greenlane) ③ Middlemore Hospital (Ōtāhuhu/Mangere) |
| Operating Schedule | Monday to Friday only (No weekend or public holiday service) |
| Frequency | Every 30 minutes throughout the day |
| Operating Hours | • Ex-Britomart: ~06:20 to 18:50 • Ex-Middlemore: ~05:15 to 17:10 (with select depot-bound short runs) |
| Full Journey Duration | Approx. 75 to 85 minutes end-to-end (traffic dependent) |
⚠️ Weekend Travel Advisory: Route 321 operates strictly on weekdays to match outpatient clinic schedules. For weekend hospital visits, use the Southern Line train (linking Grafton, Ellerslie, and Middlemore) or frequent spine buses such as the InnerLink or Route 70.
2. Point-to-Point Travel Time Timeline
Estimated travel times running outbound from downtown Auckland:
- [0 min] Britomart (Commerce St) – Departure from downtown Auckland transit zone
- [~10–12 min] Auckland City Hospital (Park Rd) – Drops off immediately adjacent to the main concourse and Starship Children’s Hospital access
- [~25–30 min] Greenlane Clinical Centre (Greenlane West) – Pulls straight through the internal grounds up to the main outpatient pavilion
- [~40–45 min] Ellerslie Station & Town Centre (Great South Rd) – Rail transfer interchange point
- [~55–65 min] Ōtāhuhu Station Interchange – Major southern bus-train connector
- [~75–80 min] Middlemore Station & Hospital – Terminal stop directly beside the train platform and clinical wings
3. Transit Comparison: Route 321 vs Driving vs Train
Hospital visitor parking across Te Whatu Ora campuses frequently exceeds $4–$6 per hour, with decks often reaching capacity early in the morning.
| Evaluation | Route 321 Bus | Driving (Private Car) | Southern Line Train |
|---|---|---|---|
| Direct Access | Direct doorstep (including Greenlane internal pavilion) | Variable; long walks from parking buildings | Direct at Grafton & Middlemore; bypasses Greenlane |
| Parking Cost / Effort | $0 parking fees; zero search time | High hourly rates; multi-storey decks regularly fill up | Free parking at suburban Park & Ride stations |
| Transit Speed | Moderate; follows arterial streets | Fastest transit time, offset by parking search | Fastest point-to-point (Britomart–Middlemore ~25 min) |
| Recommended For | Outpatient clinics, visitors, staff, inter-hospital travel | Acute emergencies, limited mobility requiring direct transport | Rapid long-distance transit between CBD and Middlemore |
4. Driver Insights & Congestion Bottlenecks
- Greenlane Clinical Centre Internal Loop: Unlike standard arterial services that set down passengers on busy Green Lane West, Route 321 turns directly off the road into the hospital complex. It stops at the main pavilion roundabout, sparing outpatient visitors from crossing multi-lane intersections.
- Grafton Bridge & Khyber Pass Congestion: During peak hours (07:30–09:00 and 16:30–18:00), traffic queuing approaching Grafton Bridge introduces delays. If you have an outpatient specialist booking, board a service scheduled to arrive 30 to 45 minutes ahead of your check-in time.
- Great South Road Logistics Corridor: The segment connecting Ellerslie, Penrose, and Ōtāhuhu carries steady heavy commercial traffic, which may add slight scheduling variance during midday hours.
5. Key Boarding Locations & Platforms
- Britomart (Commerce St): Stop ID 1341 on Commerce Street (near Quay Street, behind the main Britomart transport building).
- Auckland City Hospital:
- Southbound (to Middlemore): Park Road Stop B outside Gate 4.
- Northbound (to Britomart): Park Road directly opposite the hospital main entrance.
- Greenlane Clinical Centre: Internal driveway roundabout directly outside the Main Entrance.
- Middlemore Hospital: Hospital Road bus turnaround, integrated with Middlemore Station train platforms and the clinic concourse.
6. Fares & Official References
Route 321 operates under the standard AT Metro zonal fare structure. Passengers can tap on and off using an AT HOP card or contactless debit/credit card to automatically benefit from standard 2-hour transfer windows and the regional 7-day fare cap.