SBS Transit Bus Service 101

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.

S'Goon Int
↺ Buangkok Cres (Loop)
66009 S'Goon Int B3 NE12CC13 S'goon Ave 2
62131 Serangoon Stn Exit H NE12CC13 Upp S'goon Rd
62141 Opp Blk 1 Upp S'goon Rd
63011 Opp Upp S'Goon Shop Ctr Upp S'goon Rd
63021 The Helping Hand Upp S'goon Rd
63031 Kovan Stn Exit B NE13 Upp S'goon Rd
63041 Opp Glad Tidings Ch Upp S'goon Rd
63051 Opp Blk 370 Upp S'goon Rd
63061 Opp Blk 25 Upp S'goon Rd
64011 Naung Residence Upp S'goon Rd
64541 Hougang Ctrl Int NE14 Hougang Ctrl
64551 Blk 836 Hougang Ctrl
64529 Hougang Polyclinic Hougang Ave 4
64339 Blk 602 Hougang Ave 4
64341 Bef Blk 683 Hougang Ave 8
64351 Opp Montfort Sch Hougang Ave 8
64431 Blk 568 Hougang St 51
64441 Hougang G. Shop Mall Hougang St 51
64461 Blk 579 Buangkok Green
66499 Blk 911 Buangkok Green
66541 Blk 980C Buangkok Link
66551 Blk 984 Buangkok Link
66561 Blk 991B Buangkok Link
66601 Blk 991A Buangkok Cres
66571 Buangkok Sq Buangkok Cres
66581 Blk 986B Buangkok Cres
66549 Opp Blk 980C Buangkok Link
66491 Opp Blk 910 Buangkok Green
64619 Opp Blk 913 Hougang Ave 4
64561 Blk 574 Hougang St 51
64359 Montfort Sch Hougang Ave 8
64349 Blk 502 Hougang Ave 8
64331 Blk 508 Hougang Ave 4
64521 Blk 834 Hougang Ave 4
64559 Blk 830A Hougang Ctrl
64549 Opp Hougang Ctrl Int NE14 Hougang Ctrl
64019 Blk 302 Upp S'goon Rd
63069 Blk 25 Upp S'goon Rd
63059 Blk 22 Upp S'goon Rd
63049 Glad Tidings Ch Upp S'goon Rd
63039 Kovan Stn Exit C NE13 Upp S'goon Rd
63029 Opp The Helping Hand Upp S'goon Rd
63019 Aft Upp S'Goon Shop Ctr Upp S'goon Rd
62149 Forest Woods Upp S'goon Rd
62189 Serangoon Stn Exit D/Blk 416 NE12CC13 Upp S'goon Rd
66009 S'Goon Int NE12CC13 S'goon Ave 2
Route Overview
Route WAB_logo_20px Serangoon Bus Interchange ↺ Buangkok Crescent (Loop)
Passes Through Upp Serangoon Rd, Hougang Ctrl, Hougang St 51, Buangkok Green, Buangkok Link
Route Length 15.7 km
Travelling 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 Single-deck & Double-deck buses
Operating Hours
Departure Times from Serangoon
05:15 – 00:00
Operating Frequency
Loop Service
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 9 – 11 mins 9 – 13 mins 12 – 13 mins 11 – 12 mins
Sundays / Public Holidays 10 mins 9 – 12 mins 9 – 13 mins 11 – 13 mins
Fare Information
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.

Cancelled Extension 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.

Initially announced in September 2020, the planned route extension of Bus Service 101 was due to take place on 11 October 2020.

However, the route extension was cancelled by the Land Transport Authority on 2 October 2020, following feedback from commuters and Grassroots Adviser Ms Ng Ling Ling. In particular, concerned was raised regarding the skipping of two bus stops along Buangkok Link as part of the amendment.

In lieu of Service 101’s planned route extension, Service 114 would be introduced from Buangkok MRT Station to loop at Buangkok Crescent instead from 25 October 2020.

MRT Stations Served:
Special Departures:
  • Upp Serangoon Road (Kovan Stn Exit B) → Serangoon Int via Buangkok Cres
    Daily: 05:15

Poster 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.

  • 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 service (WAB)
  • 2017 (09 Jul): Serves new pair of bus stops outside and opposite Blk 991B along Buangkok Link
  • 2018 (23 Dec): Serves new bus stop opposite Blk 984A along Buangkok Link
  • 2019 (25 Aug): Amended to loop at Buangkok Crescent after Buangkok Link
  • 2020 (Sep): Announced by the Land Transport Authority to be extended to Buangkok MRT Station from 11 Oct 2020
  • 2020 (02 Oct): Planned extension to Buangkok MRT Station announced to be cancelled
  • 2022 (13 Mar): Serves a new bus stop outside Blk 991A along Buangkok Cres

Past Routings


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14 thoughts on “SBS Transit Bus Service 101

  • 2 July 2022 at 11:26 AM

    If you are lucky, you might be able to catch a Volvo B9TL CDGE.

  • 4 September 2021 at 5:08 PM

    Can more double decker buses be deployed on this service please? There is considerable demand throughout the day but the fleet is for some reason predominantly single deck buses. It’s so unfair that the new bus services see a generous deployment of double deckers, e.g. 114, but bus services that have for YEARS been well-patronised are struggling to have a healthy number of buses deployed on their service.

  • 4 October 2020 at 7:35 PM

    83 can be an option, to be extended after Sengkang MRT to Buangkok MRT and then loop at Buangkok Crescent. The full-fleet DD can easily manage the additional load.

  • 20 September 2020 at 5:28 PM

    To extend bus route 101 further from Buangkok MRT Station to Compassvale Bus Interchange, there must be enough demand to justify the additional 1.4 kilometres bus route from Buangkok MRT Station to Compassvale Bus Interchange.

    To be honest, I believe looping at Buangkok MRT Station is a temporary arrangement, until the Buangkok Bus Interchange opens in around 2022/2023.

    • 26 September 2020 at 7:45 AM

      I think Compassvale may be decommissioned once Buangkok interchange is ready. 110 can start from there and 374 can start from Sengkang.


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