Where does SBS Transit Bus Service 151 go, and what interesting places can you visit? Service 151 connects Hougang Central Bus Interchange to Kent Ridge Bus Terminal, travelling through Hougang Avenue 3, MacPherson Road, Jalan Toa Payoh, Stevens, Singapore Botanic Gardens MRT, Bukit Timah, Ngee Ann Polytechnic and the National University of Singapore Kent Ridge campus. It is especially useful for authorised education events, NUS Museum visits, public areas of the Botanic Gardens and travel between campuses and rail connections.

The unusual reason this bus deserves its own guide is the university route. Unlike many buses that merely pass a campus on an adjacent road, Service 151 continues inside NUS along Kent Ridge Crescent, serving NUS Museums (16161), Yusof Ishak House (16171) and the Central Library stop (16181) before Kent Ridge Terminal. That does not make all university buildings public attractions: use official event and museum visitor information before entering any controlled premises. NUS confirms Service 151 operates within Kent Ridge campus.

At a glance: Hougang Int 64009 → MacPherson Road → Stevens MRT 40239 → Botanic Gardens MRT 41021 → King Albert Park 42051 → Ngee Ann Polytechnic 12109 → University Town–Cendana 17099 → NUS Museums 16161 → NUS Central Library stop 16181 → Kent Ridge Terminal 16009. This is not a direct bus from Punggol MRT, and Kent Ridge Terminal is not the same thing as Kent Ridge MRT station.

Bus 151 essentials

• Operator: SBS Transit; conventional Hougang-to-Kent Ridge cross-town route.
• Terminals: 64009 Hougang Ctrl Int and 16009 Kent Ridge Ter.
• Published origin service: Hougang departures 5.45am–11pm daily; Kent Ridge first departure 6.15am weekdays, 6.30am weekends, last 11pm daily.
• Length: approximately 25.2 km on the Hougang-to-Kent Ridge direction.
• Stop sequence: Hougang, MacPherson, Whitley/Stevens, Bukit Timah, Clementi Road and NUS Kent Ridge Crescent.
• Important education connections: Ngee Ann Polytechnic 12109; NUS University Town–Cendana 17099; NUS Museums 16161.
• NUS Museum access: visit its official page for current public opening hours, exhibition details, wheelchair route and appointment rules for large groups.
• No direct Kent Ridge MRT stop: 16009 is Kent Ridge Bus Terminal on Clementi Road. NUS recommends other transport connections for Kent Ridge MRT.
• No direct airport service: the route travels along Airport Road in the MacPherson area but does not serve Changi Airport passenger terminals.

Selected bus stops: where to get off

The following codes identify published stops on the Hougang-to-Kent Ridge direction, not guaranteed door-to-door arrival points. Pick an actual museum, institution or park entrance before choosing the stop.

Where / why	Published stop (Hougang → Kent Ridge)	Important last-mile reality
Hougang MRT and bus interchange	64009 Hougang Ctrl Int	Start beside NE14, not at a Punggol bus interchange.
MacPherson Road / employment corridor	70149 Sky Green Condo, 70109 Gulab Bldg	Useful for exact addresses and appointments; private workplaces are not attractions.
Stevens MRT	40239 Bef Stevens Stn Exit 4	Thomson–East Coast and Downtown Line transfers; choose appropriate entrance.
NUS Bukit Timah Campus vicinity	41011 NUS Bt Timah Campus	Separate campus from NUS Kent Ridge; entry to scheduled university events only.
Singapore Botanic Gardens MRT	41021 Botanic Gdns Stn	Access the Bukit Timah entrance, not automatically all gardens or paid attractions.
Sixth Avenue / King Albert Park	41081 Sixth Ave Stn; 42051 King Albert Pk Stn	Rail connections and local errands; not the NUS Kent Ridge campus.
Ngee Ann Polytechnic	12109 Opp Ngee Ann Poly	Attend an authorised open house or course event; visitor gate is separate.
SIM campus vicinity	12099 Opp SIM Campus	Confirmed event or appointment rather than unrestricted campus access.
NUS University Town	17099 UTown – Cendana	Part of a working university; public-area permissions and event locations vary.
NUS Museum	16161 NUS Museums	Use museum’s official visitor hours and accessibility directions.
NUS central campus	16171 Yusof Ishak Hse, 16181 Ctrl Lib	Transport markers; NUS Central Library is not automatically an unrestricted visitor reading room.
Kent Ridge Bus Terminal	16009 Kent Ridge Ter	Bus endpoint; not Kent Ridge MRT (CC24) and not a universal campus entrance.

Why Bus 151 is different from a generic campus-adjacent route

At first glance, 151 looks like a long commute from Hougang to a western bus terminal. Its important feature is the final section through the National University of Singapore’s Kent Ridge campus. The published table names University Town–Cendana, NUS Museums, Yusof Ishak House and Central Library, rather than simply providing one road-side stop near the university.

That makes the service helpful to students, staff and people attending approved university events. But each of the names identifies a location within a large campus, not an all-access attraction. Classrooms, laboratories, student residential spaces and many libraries have separate rules. A transport stop gives you a lawful point of arrival, not permission to enter any building.

NUS itself identifies Service 151 as one of the public buses operating on Kent Ridge campus. Its getting-here guidance also distinguishes campus shuttle buses, the road entrance and Kent Ridge MRT. For a scheduled visit, follow the particular organiser’s access instructions, not just the bus terminal name.

If you live in Punggol or Sengkang, the journey includes an additional first leg: the 151 origin is Hougang Central, not either Punggol interchange. Compare whether a rail-and-bus combination is preferable from your actual starting point. There is no universal ‘fastest’ journey independent of home address and final university entrance.

The route begins in real neighbourhood streets, not a Punggol express

From Hougang Central, the bus travels through Hougang Avenue 5, Hougang Avenue 7, Tampines Road, Hougang Avenue 3 and the Airport Road/MacPherson Road employment corridor. The stop sequence includes ordinary housing blocks, the SBS Transit depot area, public services and workplaces before it reaches the Stevens corridor.

Several stops are useful for residents and people with appointments, even though they are not visitor attractions. A school or an industrial building is not a place for casual walk-in tours. If you are going to a workplace, identify the actual entrance, security requirements and the best pedestrian route from the nearest published stop.

An easy mistake is to see ‘Airport Road’ in the route and infer an airport connection. Here Airport Road is a road in the industrial/MacPherson area, not a bus trip to Changi Airport passenger terminals. Never use such a road-name inference for a flight or other time-critical destination.

For younger travellers, the route is a useful lesson about how a bus can link housing, workplaces and education. Ask a student to identify where the neighbourhood street stops give way to longer journeys between areas; do not ask them to treat every road as a sightseeing attraction.

Stevens MRT and NUS Bukit Timah Campus are not Kent Ridge

On Whitley Road, the service calls at 40239 Bef Stevens Stn Exit 4. Stevens MRT offers connections on the Thomson–East Coast and Downtown Lines. A transfer here may suit a traveller whose final destination is not on the remaining road corridor, but the value depends on actual walking and waiting.

The service also passes 41011 NUS Bt Timah Campus on Bukit Timah Road. This is a different NUS location from the Kent Ridge campus at the far end of Bus 151. University administration, academic events and visitor entrance instructions may refer to one campus specifically. A visitor who goes to the wrong one can face an entirely avoidable cross-town detour.

Before travelling, check the campus named in the appointment email, event poster or admissions programme, and then match it with the corresponding stop. ‘NUS’ by itself is not a sufficient destination when the university operates across multiple locations.

Do not treat a campus name on a bus pole as an invitation to enter controlled spaces. An approved programme, museum visit or public event has its own visitor information and may require advance registration.

Botanic Gardens: public nature with multiple entrances and attractions

The bus’s 41021 Botanic Gdns Stn stop is a useful way to approach the Singapore Botanic Gardens’ Bukit Timah Entrance. The gardens are an important national green space, and the main public grounds have general opening hours that differ from some internal attractions.

A child-friendly outing can focus on one small part of the public gardens, observing a type of plant or a landscape feature and reading the labels. An educational experience need not involve visiting the entire gardens, which cover a substantial area. Choose a turning point before the group becomes tired.

The National Orchid Garden and Jacob Ballas Children’s Garden operate with separate entrances and rules. The former is ticketed, while the latter has child-focused admission arrangements and specific opening days. Do not promise either as an automatic stop beside Botanic Gardens MRT.

If there is rain or lightning, follow NParks notices and avoid exposed paths. Do not pluck plants or disturb animals. An outdoor activity can be shortened or replaced by a permitted indoor option without making the bus journey a failure.

Service 151’s Botanic Gardens stop is part of its longer NUS education route, but the Botanical Gardens are a distinct visit. A person heading to the university museum should not treat Botanic Gardens MRT as the final arrival just because both are mentioned in the same article.

Sixth Avenue, King Albert Park and Ngee Ann Polytechnic

After Botanic Gardens, the bus follows Bukit Timah Road past Tan Kah Kee, Sixth Avenue and King Albert Park MRT stations. These are three separate Downtown Line stations, each serving different shops, schools, homes and road connections. A stop name is useful for navigation, but the actual outlet address determines whether it is the right one.

The service then turns along Clementi Road towards 12109 Opp Ngee Ann Poly and 12099 Opp SIM Campus. These transport references can support a planned education fair, open house or course briefing. They do not imply access to classrooms and academic facilities for every passing visitor.

For an admissions visit, confirm the open-house registration, building and entrance before choosing a stop. A public bus route and a campus visitor plan are separate documents. An institution can have several gates and a long internal route from the road.

For parents exploring post-secondary options, a useful outcome is to bring home verified course requirements and contact information. An impressive campus building is not evidence that a particular programme is open to the student, that a scholarship is available, or that admission will be granted.

Keep the itinerary focused. Trying to visit Ngee Ann Polytechnic, SIM and all of NUS in one day can be less useful than attending one confirmed event and discussing the information afterwards.

University Town and the NUS Museum: a distinctive public-facing destination

After the Clementi Road corridor, the full 151 reaches 17099 UTown – Cendana before circulating through Kent Ridge Crescent. This is part of a working university community, so general access to residential areas and classrooms should not be presumed. If attending a university event, use the organiser’s visitor instructions and correct building.

The next strong visitor reference is 16161 NUS Museums. NUS Museum’s own getting-here page explicitly identifies Bus 151 at this stop. Its posted visitor schedule lists Tuesday to Saturday 10am to 6pm, with Sundays and public holidays closed; Monday access is by arrangement for school or facility visits. Check the live museum page before travelling because exhibitions, event closures and booking conditions can change.

The museum can make a worthwhile educational trip for someone interested in art, history and material culture. Choose one current exhibition and look carefully at a small number of objects rather than trying to see everything. Ask what an object can tell us about a period and what information must come from labels or a curator. This is a more meaningful activity than merely photographing every display.

Large pre-arranged group visits need separate arrangements. NUS Museum provides accessibility instructions and advises wheelchair visitors to use an appropriate approach. Do not assume the stop immediately outside the museum is the best accessible entrance for every visitor without checking the current instructions.

Photography rules may vary by gallery and exhibition, so follow the signs. Public museum entry does not imply public access to the adjoining laboratories, offices or residential halls.

Central Library and Kent Ridge Terminal: the difference between an address and access rights

After the NUS Museums stop, the route lists 16171 Yusof Ishak Hse, 16181 Ctrl Lib and finally 16009 Kent Ridge Ter. These are useful campus navigation points, especially for staff and students who need to reach academic facilities on Kent Ridge Crescent.

Do not turn the ‘Ctrl Lib’ bus stop into a promise that any external visitor can enter NUS Central Library to study. Academic library access is subject to institutional rules. A person without student or authorised visitor privileges should confirm eligibility and current operating hours before travelling solely for that facility.

The terminal name is another important trap. Kent Ridge Bus Terminal is not Kent Ridge MRT station. The railway station is on the Circle Line and the university provides separate public bus and campus-shuttle access guidance for it. If your next leg is a train from Kent Ridge MRT, choose the correct connection rather than assuming the bus endpoint is beside the station platform.

For a visitor attending a time-specific campus appointment, the best stop may be earlier on Kent Ridge Crescent than the terminal. The service’s eventual endpoint is irrelevant if the appointment is at the museum or a faculty building along the route.

The return direction has different stop codes, beginning at Kent Ridge Terminal and working through the NUS campus before returning by Clementi Road and Bukit Timah. Use the official reverse stop list and live arrival information.

How to make this educational route useful without overclaiming

A good Bus 151 outing begins with a confirmed purpose. For a family, that might be one museum exhibition or a short Botanic Gardens walk. For a student, it might be a scheduled campus briefing. For a worker, it might be a particular employment address along MacPherson Road. All are real reasons to use the same public bus.

Do not compare its full end-to-end travel time with the MRT without considering transfers and the final campus gate. A bus operating inside the university can be convenient for an actual faculty stop, even if a train might be faster between the main geographical districts. Conversely, someone whose destination is a railway platform should consider a route that goes to that station directly.

Fares depend on the journey and concession eligibility. Operator headways are service estimates, not guaranteed arrivals at every stop. Check live departures for time-critical appointments and allow enough time for walking across a large campus.

The return plan should be written alongside the outward plan. A visitor may finish an exhibition during a museum closure or find a preferred path restricted. Knowing the correct return stop and another suitable option prevents a modest trip from turning into an unnecessarily difficult journey.

Three useful Bus 151 outings

A museum-focused learning day

Choose a current public exhibition, verify NUS Museum’s hours and any appointment requirement, then take full 151 to 16161 NUS Museums. Visit only open public areas, follow posted photography rules and use the museum’s accessible entrance instructions if needed. Return from a confirmed Hougang-bound stop.

A short Botanic Gardens nature outing

Use 41021 Botanic Gdns Stn in the Hougang-to-Kent Ridge direction to reach the Bukit Timah Entrance. Select one public garden section, check individual attraction rules and leave the trip flexible for weather. No need to continue to NUS unless you have another planned purpose.

A legitimate post-secondary open house

Check whether the event is at Ngee Ann Polytechnic, SIM, NUS Bukit Timah or NUS Kent Ridge. Select 12109, 12099, 41011 or a specific Kent Ridge Crescent stop only after confirming the exact venue and visitor entrance.

Frequently asked questions

Where does Bus 151 go?

From Hougang Central Interchange to Kent Ridge Bus Terminal via MacPherson Road, Stevens, Botanic Gardens, Bukit Timah and NUS.

Does it go inside NUS?

Yes, it has published stops at University Town–Cendana, NUS Museums, Yusof Ishak House and Central Library before Kent Ridge Terminal.

Can Bus 151 take me to NUS Museum?

Yes. Stop 16161 NUS Museums appears on the Hougang-to-Kent Ridge route, and NUS Museum names Bus 151 in its directions.

Can I enter NUS Central Library as a visitor?

Not automatically. A stop named Ctrl Lib is not a public-access guarantee; check the university’s library visitor rules.

Is Kent Ridge Terminal the same as Kent Ridge MRT?

No. The bus terminal and Circle Line Kent Ridge MRT station are different places requiring separate directions.

Does 151 go to Botanic Gardens MRT?

Yes, its Hougang-to-Kent Ridge direction includes 41021 Botanic Gdns Stn.

Does Bus 151 go to Ngee Ann Polytechnic?

It serves 12109 Opp Ngee Ann Poly. An open house requires the correct campus entry instructions.

Does Bus 151 go to Changi Airport?

No. The Airport Road segment is an industrial road, not Changi passenger terminals.

Where does it start in Hougang?

At Hougang Central Bus Interchange, stop 64009, near NE14.

Can I board from Punggol MRT?

No. The published service does not call at Punggol MRT; plan a connection or a different route.

Can I visit the NUS Museum on Sunday?

Its visitor page currently lists Sundays and public holidays as closed. Verify current event and special-opening information before travel.

Which stop should I use for a NUS campus event?

Use the organiser’s exact address and venue instructions, then match it to the service’s stop list. The NUS campus has multiple gates and buildings.

Official sources and related bus guides

• SBS Transit: Service 151 complete outward route and timetable
• SBS Transit: Service 151 reverse direction
• NUS: campus public bus and transport connections
• NUS Museum: visitor hours, access and bus 151 stop 16161
• Singapore Botanic Gardens: official visitor guidance
• Ngee Ann Polytechnic: official events and admissions

For a different cross-town bus serving the Ngee Ann Polytechnic/Dover corridor but not circulating inside NUS, compare Bus 74. For the Buangkok-to-Clementi route with Bishan Park and Botanic Gardens, see Bus 156.

Verified 1 November 2026. This independent travel guide is not a live bus arrival display or permission to enter a university facility. Institution and museum opening hours, route stopping points, accessible entrances and event requirements can change. Recheck official sources and the return route on the day.