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.
↺ Old Choa Chu Kang Rd (Loop)
| 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 |
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| 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 |
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| Fare | Charges regular distance fares |
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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
| Service 405 Operating Dates in 2025 | |
| Festivals | Operating Dates |
| First Ramadan |
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| Qing Ming Period |
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| Hari Raya Puasa |
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| Good Friday |
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| Hari Raya Haji |
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| Deepavali Period |
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| All Soul's Day |
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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.
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With the realignment of Lim Chu Kang Road ending in 2025 Q2, 975 will amend to a sime route as 405 at Choa Chu Kang Cemetery region. There is a high possibility that 405 will be cancelled or convert to a special departure of 975.
maybe it’s best is covert to full day service to support 172 especially for those going to book in at Civil Defence Academy at Jln Bahar on weekends.
Furthermore, 975 will amend some parts of old cck rd that 405 ply that route. so better for some, can start at 0630 or 0700 and ends at 2100 or 2200. Just my 2 cents.
405 2022 dates just dropped m8 https://www.sbstransit.com.sg/news/service-405—operating-dates-in-2022
I agree with extending 405 to daily and extending to LCK road end (or maybe operating only at periods where 975 have high demand) to reduce the load on 975. It also connects to Boon Lay MRT which is more convenient for those living along East-West line as opposed to taking 975 to CCK and transferring at JE (And I think Boon Lay MRT is closer than CCK MRT from LCK).
I am also thinking about the feasibility to extend to Kranji MRT via Neo Tiew Road -> SG Buloh -> Skips bus stops along Kranji Way and Kranji Road to reduce duplication with 925 -> Kranji MRT (Loop). This helps to allow access to Kranji farms and connect LCK to Kranji MRT, which might also be nearer as compared to CCK