SMRT Bus Service 405

SMRT Bus Service 405 is a trunk route serving Choa Chu Kang Cemetery, running from Boon Lay interchange and looping at Old Choa Chu Kang Road. It only operates on specific days of the year.

Service 405 will be amended to ply the realigned Jalan Bahar and skip Lim Chu Kang Road from 18 October 2025, following the closure of part of Lim Chu Kang Road on 8 June 2025 to facilitate the expansion of Tengah Air Base.

Route Overview
Route	Boon Lay Bus Interchange ↺ Old Choa Chu Kang Road (Loop)
Passes Through	Jln Bahar
Route Length	13.2 km
Travelling Time	35 – 41 mins
Operator Information
BCM Route Package	Jurong West Bus Package
Current Operator	SMRT Buses Ltd
Current Depot	Soon Lee Bus Depot
Current Fleet	Single-deck buses
Operating Hours
Departure Times from Boon Lay	Selected Operating Days Only
	07:00 – 17:00
Operating Frequency
Loop Service	6:30am–8.30am			8.31am–4.59pm			5.00pm–7.00pm			After 7.00pm
Weekdays	22 – 25 mins			25 – 26 mins			N.A.			N.A.
Saturdays	22 – 23 mins			24 – 28 mins			N.A.			N.A.
Sundays / Public Holidays	30 mins			30 mins			N.A.			N.A.
Fare Information
Fare	Charges regular distance fares

Bus Service 405 directly connects Choa Chu Kang Cemetery, Crematorium and Columbariums & Nirvana Memorial Garden with Boon Lay MRT/Bus Interchange, serving Old Choa Chu Kang Road. Buses perform a 3 point turn at the end of Old Choa Chu Kang Road.

This service operates only during specific periods: the Qing Ming Festival, Good Friday, the start of Ramadan, Hari Raya Puasa, Hari Raya Haji, the Deepavali period, and All Souls' Day. The exact operating dates are announced by the bus operator closer to each year's start of service.

During the Singapore SEA Games in June 2015, a special variant of Service 405, known as Service 405M, ran for six days to serve the National Shooting Centre on Old Choa Chu Kang Road, bypassing the Lim Chu Kang Road section of the route.

In October 2025, Service 405 will be amended to the realigned Jln Bahar and skip Lim Chu Kang Road following the closure of part of Lim Chu Kang Road to facilitate the expansion of Tengah Air Base on 8 June 2025. Lost sectors included a unique U-turn point along Lim Chu Kang Road, just before Murai Farmway, where a special "Bus-only" U-turn bay is utilized.

Landmarks served:

• Choa Chu Kang Cemetery
• Choa Chu Kang Columbarium
• Choa Chu Kang Crematorium
• Nirvana Memorial Garden
• The Garden Of Remembrance
• Garden of Peace @ CCK
• National Shooting Centre

MRT Station Served

• EW27 Boon Lay

Gallery

Gallery (Posters):

Operating Days Posters:

Gallery (SBS Transit):

Operator History:

• 1993 – 2001: Singapore Bus Services Ltd
• 2001 – 31 Aug 2024: SBS Transit Ltd
• 1 Sep 2024 – Present: SMRT Buses Ltd

Route History:

• 1993 (18 Jul): Introduced between Boon Lay Int and Choa Chu Kang Rd End (Loop), operating during Qing Ming period, Good Friday, Ramadan, Hari Raya Puasa, Hari Raya Haji, Deepavali and All Souls' Day only
• 1997 (05 Apr): Enhanced to ply Lim Chu Kang Rd
• 2006 (18 Jun): Amended to Boon Lay Temp Int
• 2009 (27 Dec): Amended to Boon Lay Integrated Transport Hub and amended to ply Jurong West Central 1, skipping Jurong West Central 3
• 2010 (10 Feb): Serves additional bus stop outside Blk 263 along Jln Boon Lay
• 2015 (30 Mar): Designated wheelchair-accessible bus service (WAB)
• 2024 (01 Sep): Operations transferred to SMRT Buses under the Jurong West Bus Package
• 2025 (18 Oct): Amended to ply the realigned Jalan Bahar and skip Lim Chu Kang Road, due to road closures from 8 June 2025 to facilitate the expansion of Tengah Air Base.

Past Routings

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