SBS Transit Bus Service 101 is a trunk route from Serangoon Int and looping at Buangkok Crescent, passing through Upper Serangoon Road, Kovan, Hougang Central, Hougang Avenue 4/8, Hougang Street 91, and Buangkok Link.
Bus Service 101 will be extended to serve Buangkok MRT station & converted to a bi-directional service from 11 October 2020.

Route Overview | ||||||||||||
Route ![]() |
Serangoon Bus Interchange ↺ Buangkok Crescent (Loop) [From 11 Oct 2020] Serangoon Bus Interchange ![]() |
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Passes Through | Upp Serangoon Rd, Hougang Ctrl, Hougang St 51, Buangkok Green, Buangkok Link | |||||||||||
Route Length | 15.8 km | |||||||||||
Traveling Time | 59 – 85 mins | |||||||||||
Operator Information | ||||||||||||
BCM Route Package | Serangoon – Eunos Bus Package | |||||||||||
Current Operator | SBS Transit Ltd | |||||||||||
Current Depot | Hougang Bus Depot (HGDEP) | |||||||||||
Current Fleet | 12-metre Single Deck Bus: – Mercedes-Benz Citaro – Scania K230UB |
12-metre Double Deck Bus: – Volvo B9TL |
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Operating Hours | ||||||||||||
Departure Times from Serangoon |
Daily | |||||||||||
05:15 – 00:00 | ||||||||||||
[From 11 Oct 2020] Departure Times from Buangkok MRT |
[From 11 Oct 2020] Daily |
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06:05 – 00:30 | ||||||||||||
Operating Frequency | ||||||||||||
From Serangoon |
6:30am–8.30am | 8.31am–4.59pm | 5.00pm–7.00pm | After 7.00pm | ||||||||
Weekdays | 8 – 9 mins | 7 – 13 mins | 8 – 9 mins | 8 – 14 mins | ||||||||
Saturdays | 10 mins | 9 – 13 mins | 11 – 13 mins | 11 – 12 mins | ||||||||
Sundays / Public Holidays | 10 mins | 9 – 12 mins | 9 – 13 mins | 11 – 13 mins | ||||||||
[From 11 Oct 2020] From Buangkok MRT |
6:30am–8.30am | 8.31am–4.59pm | 5.00pm–7.00pm | After 7.00pm | ||||||||
Weekdays | TBA | TBA | TBA | TBA | ||||||||
Saturdays | TBA | TBA | TBA | TBA | ||||||||
Sundays / Public Holidays | TBA | TBA | TBA | TBA | ||||||||
Fare Information |
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Fare | Charges regular distance fares |
Service 101 is a residential trunk route linking large parts of Hougang Neighbourhoods 4, 5 and 9 to Hougang Central, Kovan and Serangoon, offering connectivity to these transport nodes and nearby community amenities. Demand is most significant during the peak hours where many commuters commute to and from home and the MRT network.
Amendment to Buangkok MRT Station
In a Facebook post on 9 August 2020, Member of Parliament (MP) for Ang Mo Kio GRC (Jalan Kayu) Dr Intan Azura Mokhtar revealed that the Land Transport Authority had initially wanted to amend Service 101 to ply Buangkok Crescent to Buangkok MRT Station. However, she mentioned that “many residents living along Buangkok Link will be omitted entirely and not have any bus service serving them”, although Bus Service 329 currently serves one side of Buangkok Link. In lieu of her concern, LTA reviewed the route amendment plan and it was changed to that effective 25 August 2019, where Service 101 would loop at Buangkok Crescent and not serve Buangkok MRT Station. LTA would then continue to study commuter feedback for Service 101 over the next six months (from 25 August 2019) to better understand how the bus service can be improved. In addition, she had also emphasised the need for a direct bus service that would connect Buangkok estate (Crescent and Link) residents to and from Buangkok MRT.
In a follow-up Facebook post on 4 July 2020, the MP disclosed that LTA had agreed to extend service 101 to ply between Buangkok Crescent estate and Buangkok MRT station. The details of the new route of service 101 and its implementation date would be shared with residents as soon as they are available.
From 11 October 2020, Service 101 was extended to serve Buangkok MRT station.
MRT Stations Served:
From 11 Oct 2020:
- NE15 Buangkok
Special Departures:
- [Till 10 Oct 2020]
Upp Serangoon Road (Kovan Stn Exit B) → Serangoon Int via Buangkok Cres
Daily: 05:15 - [From 11 Oct 2020]
Upp Serangoon Road (Kovan Stn Exit B) → Sengkang Central (Buangkok MRT Exit A)
Daily: 05:15 - [From 11 Oct 2020]
Buangkok Crescent (Opp Blk 998B) → Serangoon Int
Daily: From 05:35 till first bus from Buangkok MRT at around 06:10
Gallery:




Operator History:
- 2004– Present: SBS Transit Ltd
The Bus Service Operating License (BSOL) for this route will be renewed in 2025 under the Serangoon – Eunos Bus Package.
History:
- 2004 (15 Feb): Introduced between Serangoon and Buangkok Cres (Loop), replacing Feeder 328 due to the closure of Hougang South Int
- 2005 (14 Aug): Amended to loop at Buangkok Link, skipping Buangkok Cres
- 2009 (19 Apr): Serves new pair of bus stops outside Blk 834 and outside Hougang Polyclinic along Hougang Ave 4
- 2011 (03 Sep): Amended to Serangoon Integrated Transport Hub.
- 2011 (03 Dec): Designated wheelchair-accessible bus route (WAB)
- 2017 (09 Jul): Serves new pair of bus stops outside and opposite Blk 991B along Buangkok Link
- 2018 (23 Dec): Serves a new bus stop (66559) along Buangkok Link
- 2019 (25 Aug): Amended to loop at Buangkok Crescent after Buangkok Link
- 2020 (11 Oct): Extended to terminate at Sengkang Central (Buangkok MRT) via Buangkok Drive & converted to a bi-directional service
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The post SBS Transit Bus Service 101 first appeared on Land Transport Guru.