Tower Transit City Direct Bus Service 663

Tower Transit City Direct Service 663 is a Weekday Peak Hour City Direct Service between Yishun and the CBD, passing through Yishun Ring Rd, Yishun Central and Bras Basah Rd. It is the thirteenth City Direct route introduced under the Bus Service Enhancement Programme (BSEP). Launched on 28 September 2015, the route took over deleted sectors of Express 850E.

Route Overview
Route	[AM]: Yishun Avenue 6 (Bet Blks 405/406) → Shenton Way (Opp MAS Bldg) [PM]: Anson Road (Mapletree Anson) → Yishun Avenue 6 (Opp Blk 406)
Passes Through	Yishun Ring Rd, Yishun Ctrl, Bras Basah Rd
Route Length	Towards Shenton Way: 26.0 km						Towards Yishun Ave 6: 26.3 km
Travelling Time	75 mins
Operator Information
BCM Route Package	Sembawang–Yishun Bus Package
Current Operator	Tower Transit Singapore Pte Ltd (Tower Transit Singapore)
Current Depot	Mandai Bus Depot
Current Fleet	Double Deck Bus – Alexander Dennis Enviro500 – MAN A95
Operating Hours
Departure Times from Yishun Ave 6	Weekdays, except Public Holidays
	07:20 – 07:50
Departure Times from Anson Rd	Weekdays, except Public Holidays
	18:15 – 18:30
Operating Frequency
From Yishun Ave 6	10 mins
From Anson Rd	15 mins
Fare Information
Fare	Charges express distance fares

City Direct Service 663 provides residents of Yishun with greater connectivity to the CBD. The service provides a travel alternative for commuters who relied on the rail network and feeder buses to and from work. The route incorporates an express sector between Yishun Ave 2 and Orchard Rd via SLE & CTE.

This is the thirteenth City Direct service to be introduced under the Bus Service Enhancement Programme (BSEP), which provides more options for commuters using stretches of the existing rail lines that experience persistently high ridership, while the ongoing rail enhancement measures are being implemented.

With the launch of this service, Express Service 850E was amended to start at Yishun St 41, serving Yishun Ave 1 & 11. Lost sectors for Service 850E was replaced with City Direct Service 663.

MRT Stations Served

• NS24NE6CC1 Dhoby Ghaut
• DT21 Bencoolen
• CC2 Bras Basah
• CC3 Esplanade
• NS25EW13 City Hall
• NS26EW14 Raffles Place
• TE19 Shenton Way
• EW15 Tanjong Pagar

Departure Timings

Weekdays (except Public Holidays)

• Morning Peak from Yishun Avenue 6 (Bet Blks 405/406):
  07:20, 07:30, 07:40 & 07:50
• Evening Peak from Anson Road (Mapletree Anson):
  18:15 & 18:30

Gallery

Gallery (F1 Diversion):

Poster Gallery

Operator History:

• 28 Sep 2015 – 27 Sep 2017: Bus Hub Service Pte Ltd
• 28 Sep 2017 – Present: Tower Transit Singapore Pte Ltd

The Bus Service Operating License (BSOL) for this route will be renewed in 2026 under the Sembawang–Yishun Bus Package.

History:

• 2015 (28 Sep): Introduced between Yishun Ave 6 (Bet Blks 405/406) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Mapletree Anson) and Yishun Ave 6 (Opp Blk 406) during evening peak hours as a peak hour one-directional service on weekdays under the BSEP. Operated under Contract PT221B
• 2017 (28 Sep): Operations transferred to Tower Transit Singapore Pte Ltd under the Bulim Bus Package; Double deck buses deployed; Designated wheelchair-accessible bus service (WAB)
• 2020 (08 Apr – 01 Jun): Temporarily suspended due to Singapore COVID-19 Circuit Breaker Measures
• 2021 (26 Apr): Serves new bus stop outside Blk 382C along Yishun Ave 6
• 2021 (05 Sep): Transfer of operations from Bulim Bus Package to Sembawang–Yishun Bus Package
• 2022 (25 Sep): Serves a new bus stop Opp Blk 382C along Yishun Avenue 6
• 2023 (28 Aug): Addition of 4th morning peak trip from Yishun Avenue 6

Past Routings

Changes in Departure Times:

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