N21 Bexleyheath Town Centre - Eltham - Lewisham - New Cross - London Bridge - Trafalgar Square

A bus service operated by London Central

KING WILLIAM STREET, City of London
Monday 8 July 2024 – Wednesday 31 December 2025

Route N21 is on diversion towards Bexleyheath only from 8 July 08:00 until December 2025 due to major roadworks.

Buses are diverted via Cannon Street, missing stops Bank Station / Poultry (K) and King William Street / Monument Station (G).

STRAND, WC2
22:00 – 23:59, 8 October 2025

From 22:00 Tuesday 7 October until 06:00 Friday 10 October, ROUTES 15 N15 N21 N26 N89 N199 N550 N551 towards Blackwall Station, Romford Market, Bexleyheath, Chingford Station, Erith, St Marys Cray, Canning Town or Gallions Reach are on diversion via Northumberland Avenue, Victoria Embankment, Temple Place, Arundel Street, Strand, Melbourne Place and Aldwych due to a nightly crane operation taking place.

Buses will not serve stops from 'Charing Cross Station/Trafalgar Square' (F) to 'Aldwych' (D).

Bexleyheath Clocktower - Charing Cross

Bexleyheath Clocktower (Stop L) 00:2000:5001:2001:5002:2002:5003:2003:5004:20
Bexleyheath / Highland Road (Stop X) 00:2000:5001:2001:5002:2002:5003:2003:5004:20
Bexleyheath Halcot Avenue (Stop C) 00:2100:5101:2101:5102:2102:5103:2103:5104:21
Bexleyheath Broomfield Road (DA6) (Stop D) 00:2100:5101:2101:5102:2102:5103:2103:5104:21
Bexley Gravel Hill Close (Stop E) 00:2200:5201:2201:5202:2202:5203:2203:5204:22
Bexley Hartford Road (Stop J) 00:2300:5301:2301:5302:2302:5303:2303:5304:23
Bexley Library (Stop G) 00:2300:5301:2301:5302:2302:5303:2303:5304:23
Bexley (Stop E) 00:2400:5401:2401:5402:2402:5403:2403:5404:24
Bexley War Memorial (Stop B) 00:2400:5401:2401:5402:2402:5403:2403:5404:24
Bexley Cross Lane (Stop H) 00:2500:5501:2501:5502:2502:5503:2503:5504:25
Bexley Riverdale Road (Stop J) 00:2500:5501:2501:5502:2502:5503:2503:5504:25
Bexley Bridgen / The Anchor (Stop K) 00:2500:5501:2501:5502:2502:5503:2503:5504:25
Blackfen Woodside Lane (Stop L) 00:2600:5601:2601:5602:2602:5603:2603:5604:26
Blackfen Beechway (Stop M) 00:2700:5701:2701:5702:2702:5703:2703:5704:27
Blackfen Blendon / Penhill Road (Stop N) 00:2800:5801:2801:5802:2802:5803:2803:5804:28
Blackfen School For Girls (Stop P) 00:2800:5801:2801:5802:2802:5803:2803:5804:28
Blackfen Road / Ramillies Road (Stop E) 00:2900:5901:2901:5902:2902:5903:2903:5904:29
Blackfen Road / Wellington Ave (Stop F) 00:3001:0001:3002:0002:3003:0003:3004:0004:30
Blackfen Sycamore Avenue (Stop G) 00:3001:0001:3002:0002:3003:0003:3004:0004:30
Blackfen Queenswood Road (Stop H) 00:3001:0001:3002:0002:3003:0003:3004:0004:30
Falconwood Blackfen Road / Boundary Road (->W) 00:3101:0101:3102:0102:3103:0103:3104:0104:31
Avery Hill Rennets Wood Road (Stop AM) 00:3201:0201:3202:0202:3203:0203:3204:0204:32
Avery Hill Riefield Road (Stop AD) 00:3301:0301:3302:0302:3303:0303:3304:0304:33
Avery Hill Leigh Stationers' Academy (Stop AE) 00:3301:0301:3302:0302:3303:0303:3304:0304:33
Eltham Park Bexley Road / Glenesk Road (Stop AF) 00:3401:0401:3402:0402:3403:0403:3404:0404:34
Eltham High Street / Foots Cray Road (Stop T) 00:3501:0501:3502:0502:3503:0503:3504:0504:35
Eltham High Street / St Mary's Place (Stop P) 00:3501:0501:3502:0502:3503:0503:3504:0504:35
Eltham High Street / Passey Place (Stop M) 00:3601:0601:3602:0602:3603:0603:3604:0604:36
Eltham Church / High Street (Stop H) 00:3601:0601:3602:0602:3603:0603:3604:0604:36
Eltham Kingsground (Stop W) 00:3601:0601:3602:0602:3603:0603:3604:0604:36
Eltham Greenway (SE9) (Stop WD) 00:3701:0701:3702:0702:3703:0703:3704:0704:37
Eltham Hill / Middle Park Avenue (Stop WE) 00:3701:0701:3702:0702:3703:0703:3704:0704:37
Eltham Road / Westhorne Avenue (Stop WP) 00:3801:0801:3802:0802:3803:0803:3804:0804:38
Blackheath Park Cedarhurst Drive (Stop WR) 00:3901:0901:3902:0902:3903:0903:3904:0904:39
Blackheath Park Eltham Road / Kidbrooke Park Road (Stop WS) 00:3901:0901:3902:0902:3903:1003:4004:1004:40
Blackheath Park Courtlands Avenue (SE12) (Stop WT) 00:4001:1001:4002:1002:4003:1003:4004:1004:40
Blackheath Park Weigall Road (Stop WU) 00:4001:1001:4002:1002:4003:1103:4104:1104:41
Lee Cambridge Drive (Stop X) 00:4001:1001:4002:1002:4003:1103:4104:1104:41
Lee Green (Stop J) 00:4101:1101:4102:1102:4103:1203:4204:1204:42
Lee Lampmead Road (Stop N) 00:4101:1101:4102:1102:4103:1203:4204:1204:42
Lee Dacre Park (Stop T) 00:4201:1201:4202:1202:4203:1303:4304:1304:43
Lee Brandram Road (Stop U) 00:4301:1301:4302:1302:4303:1403:4404:1404:44
Lewisham Belmont Park (Stop V) 00:4301:1301:4302:1302:4303:1403:4404:1504:45
Lewisham Marischal Road (Stop W) 00:4401:1401:4402:1402:4403:1503:4504:1504:45
Lewisham Belmont Hill (Stop M) 00:4401:1401:4402:1402:4403:1503:4504:1604:46
Lewisham Clock Tower (Stop E) 00:4501:1501:4502:1502:4503:1603:4604:1604:46
Lewisham Station (Stop J) 00:4601:1601:4602:1602:4603:1703:4704:1804:48
Lewisham Station / Loampit Vale (Stop F) 00:4601:1601:4602:1602:4603:1703:4704:1804:48
Lewisham Loampit Vale / Jerrard Street (Stop SG) 00:4701:1701:4702:1702:4703:1803:4804:1904:49
St John’s Undercliff Road (Stop SH) 00:4801:1801:4802:1802:4803:1903:4904:2004:50
St John’s Lewisham College / Ashmead School (Stop SJ) 00:4801:1801:4802:1802:4803:1903:5004:2104:51
Lucas Street (Stop D) 00:4901:1901:4902:1902:4903:2003:5104:2204:52
New Cross Malpas Road (Stop E) 00:5001:2001:5002:2002:5003:2103:5104:2204:52
New Cross Amersham Road (Stop F) 00:5001:2001:5002:2002:5003:2103:5204:2304:53
New Cross Marquis of Granby / Goldsmiths (Stop X) 00:5101:2101:5102:2102:5103:2203:5304:2404:54
New Cross Gate Station (Stop O) 00:5201:2201:5202:2202:5203:2303:5304:2404:54
New Cross Bus Garage (Stop J) 00:5301:2301:5302:2302:5303:2403:5504:2604:56
New Cross Road / Besson Street (Stop C) 00:5301:2301:5302:2302:5303:2403:5504:2604:56
New Cross Gate Briant Street (Stop D) 00:5401:2401:5402:2402:5403:2503:5604:2704:57
Pomeroy Street New Cross (Stop W) 00:5401:2401:5402:2402:5403:2503:5704:2804:58
Peckham Old Kent Road / Ilderton Road (Stop WA) 00:5501:2501:5502:2502:5503:2603:5804:2904:59
Commercial Way Peckham (Stop WB) 00:5501:2501:5602:2602:5603:2703:5804:2904:59
Peckham Park Road (Stop WE) 00:5601:2601:5702:2702:5703:2804:0004:3105:01
Peckham Malt Street (Stop WH) 00:5701:2701:5802:2802:5803:3004:0204:3305:03
Old Kent Road Trafalgar Avenue (Stop WJ) 00:5801:2801:5902:2902:5903:3004:0204:3305:03
Walworth Burgess Park / Dunton Road (Stop WN) 00:5901:2902:0002:3003:0003:3204:0404:3505:05
Walworth Old Kent Road / East Street (Stop F) 01:0001:3002:0102:3103:0103:3304:0504:3605:06
Newington Bricklayer's Arms (Stop BP) 01:0101:3102:0202:3203:0203:3404:0604:3705:07
Newington Bartholomew Street (Stop BD) 01:0101:3102:0202:3203:0203:3404:0604:3705:07
Trinity Street / The Roebuck (Stop M) 01:0201:3202:0302:3303:0303:3504:0704:3805:08
The Borough Borough Station / Great Dover St (Stop F) 01:0301:3302:0402:3403:0403:3604:0804:3905:09
The Borough Union Street (Stop G) 01:0401:3402:0502:3503:0503:3704:0904:4005:10
London Bridge Borough High St (Stop M) 01:0601:3602:0702:3703:0703:3904:1104:4205:12
Monument (Stop Q) 01:0701:3702:0802:3803:0803:4004:1204:4305:13
City of London Bank Station / King William St (Stop F) 01:0801:3802:0902:3903:0903:4104:1304:4405:14
City of London Poultry / Bank Station (Stop L) 01:0901:3902:1002:4003:1103:4304:1504:4605:16
City of London St Pauls Churchyard (Stop SH) 01:1001:4002:1102:4103:1203:4404:1604:4805:18
St Paul's Cathedral (Stop SJ) 01:1101:4102:1202:4203:1303:4504:1704:4805:18
City Thameslink Stn / Ludgate Circus (Stop F) 01:1201:4202:1302:4303:1403:4604:1804:5005:20
City of London Fetter Lane (->W) 01:1201:4202:1302:4303:1403:4604:1804:5105:21
City of London Chancery Lane (EC4) (->W) 01:1301:4302:1402:4403:1503:4704:1904:5105:21
Temple The Royal Courts of Justice (Stop P) 01:1401:4402:1502:4503:1603:4804:2004:5305:23
Temple Aldwych / Australia House (Stop G) 01:1401:4402:1502:4503:1603:4804:2004:5305:23
Temple Aldwych / Drury Lane (Stop R) 01:1401:4402:1502:4603:1703:4904:2104:5405:24
Covent Garden Savoy Street (Stop U) 01:1501:4502:1602:4603:1703:4904:2104:5405:24
Charing Cross Bedford Street (Stop J) 01:1501:4502:1602:4703:1803:5004:2204:5505:25
Charing Cross (Stop H) 01:1701:4702:1802:4903:2003:5204:2404:5705:27

Charing Cross - Bexleyheath Clocktower

Trafalgar Square/Charing Cross (Stop G) 00:3501:0501:3502:0502:3503:0503:3504:0504:35
Southampton Street / Covent Garden (Stop A) 00:3601:0601:3602:0602:3603:0603:3604:0604:36
Temple Aldwych (Stop D) 00:3701:0701:3702:0702:3703:0703:3704:0704:37
Temple The Royal Courts of Justice (Stop L) 00:3801:0801:3802:0802:3803:0803:3804:0804:38
City of London Fetter Lane (->E) 00:3901:0901:3902:0902:3903:0903:3904:0904:39
City of London Ludgate Circus (Stop E) 00:4001:1001:4002:1002:4003:1003:4004:1004:40
City of London Ludgate Hill / Old Bailey (Stop G) 00:4101:1101:4102:1102:4103:1103:4104:1104:41
St Paul's Cathedral (Stop SK) 00:4201:1201:4102:1102:4103:1103:4104:1104:42
Mansion House (Stop ME) 00:4201:1201:4202:1202:4203:1203:4204:1204:42
Cannon Street (Stop MB) 00:4401:1401:4302:1302:4303:1303:4304:1304:44
Monument (Stop P) 00:4601:1601:4502:1502:4503:1503:4504:1504:46
London Bridge Borough High St (Stop Y) 00:4701:1701:4602:1602:4603:1603:4604:1604:47
London Bridge Bus Station (Stop D) 00:4901:1901:4802:1802:4803:1803:4804:1804:49
Southwark Street The Borough (->S) 00:5001:2001:4902:1902:4903:1903:4904:1904:50
The Borough Union Street (Stop H) 00:5101:2101:5002:2002:5003:2003:5004:2004:51
The Borough Borough Station / Great Dover St (Stop E) 00:5301:2301:5102:2102:5103:2103:5104:2104:52
Trinity Street / The Roebuck (Stop L) 00:5301:2301:5102:2102:5103:2103:5104:2104:52
Newington Blackhorse Court (->S) 00:5401:2401:5102:2102:5103:2103:5104:2104:52
Newington Bartholomew Street (Stop BE) 00:5501:2501:5202:2202:5203:2203:5204:2204:53
Newington Bricklayer's Arms (Stop BK) 00:5601:2601:5302:2302:5303:2303:5304:2304:54
Walworth Old Kent Road / East Street (Stop G) 00:5601:2601:5302:2302:5303:2303:5304:2304:54
Walworth Burgess Park / Dunton Road (Stop EC) 00:5801:2801:5502:2502:5503:2503:5504:2504:56
Old Kent Road Trafalgar Avenue (Stop EE) 00:5801:2801:5502:2502:5503:2503:5504:2504:56
Peckham Malt Street (Stop EN) 00:5901:2901:5602:2602:5603:2603:5604:2604:57
Peckham Park Road (Stop EN) 01:0001:3001:5702:2702:5703:2703:5704:2704:58
Commercial Way Peckham (Stop EP) 01:0101:3101:5702:2702:5703:2703:5804:2804:59
Peckham Old Kent Road / Ilderton Road (->E) 01:0201:3201:5802:2802:5803:2803:5904:2905:00
New Cross Gate Briant Street (Stop F) 01:0301:3301:5902:2902:5903:2904:0004:3005:01
New Cross Bus Garage (Stop H) 01:0501:3502:0102:3103:0103:3104:0204:3205:03
New Cross Gate Station (Stop M) 01:0501:3502:0102:3103:0103:3104:0204:3205:03
New Cross Marquis Of Granby (Stop T) 01:0601:3602:0202:3203:0203:3204:0304:3305:04
New Cross Amersham Road (Stop B) 01:0801:3802:0302:3303:0303:3304:0404:3405:05
New Cross Malpas Road (Stop B) 01:0801:3802:0402:3403:0403:3404:0504:3505:06
Lucas Street (Stop C) 01:0901:3902:0402:3403:0403:3404:0504:3505:06
St John’s Lewisham College / Ashmead School (Stop SK) 01:0901:3902:0502:3503:0503:3504:0604:3605:07
Tyrwhitt Road/St Johns Station (Stop SL) 01:1001:4002:0502:3503:0503:3504:0604:3605:07
St John’s Undercliff Road (Stop SN) 01:1101:4102:0602:3603:0603:3604:0704:3705:08
Lewisham Loampit Vale / Jerrard Street (Stop SP) 01:1101:4102:0602:3603:0603:3604:0704:3705:08
Lewisham Station (Stop D) 01:1301:4302:0802:3803:0803:3804:0904:3905:10
Lewisham Belmont Hill (Stop N) 01:1401:4402:0902:3903:0903:3904:1004:4005:11
Lewisham Belmont Park (Stop P) 01:1501:4502:1002:4003:1003:4004:1104:4105:12
Lee Manor Park (Stop Q) 01:1501:4502:1002:4003:1003:4004:1104:4105:12
Lee Brandram Road (Stop R) 01:1601:4602:1102:4103:1103:4104:1204:4205:13
Lee Dacre Park (Stop S) 01:1701:4702:1202:4203:1203:4204:1304:4305:14
Lee Lampmead Road (Stop L) 01:1701:4702:1202:4203:1203:4204:1304:4305:14
Lee Green /The Old Tigers Head (Stop K) 01:1801:4802:1302:4303:1303:4304:1404:4405:15
Lee Cambridge Drive (Stop W) 01:1801:4802:1302:4303:1303:4304:1404:4405:15
Blackheath Park Weigall Road (Stop EA) 01:1901:4902:1402:4403:1403:4404:1504:4505:16
Blackheath Park Courtlands Avenue (SE12) (Stop EB) 01:1901:4902:1402:4403:1403:4404:1504:4505:16
Blackheath Park Eltham Road / Kidbrooke Park Road (Stop EC) 01:2001:5002:1502:4503:1503:4504:1604:4605:17
Blackheath Park Sutcliffe Park (Stop ED) 01:2101:5102:1502:4503:1503:4504:1604:4605:18
Eltham Road / Westhorne Avenue (Stop EE) 01:2101:5102:1602:4603:1603:4604:1704:4705:18
Eltham Hill / Westhorne Avenue (Stop EK) 01:2201:5202:1602:4603:1603:4604:1704:4705:19
Eltham Vandyke Cross (->E) 01:2201:5202:1702:4703:1703:4704:1804:4805:19
Eltham Kingsground (Stop X) 01:2301:5302:1702:4703:1703:4704:1804:4805:20
Eltham Sherard Road (Stop Y) 01:2301:5302:1802:4803:1803:4804:1904:4905:20
Eltham High Street / Roper Street (Stop O) 01:2501:5502:1902:4903:1903:4904:2004:5005:22
Eltham High Street / Pound Place (Stop S) 01:2501:5502:1902:4903:1903:4904:2004:5005:22
Eltham High Street / Westmount Road (Stop V) 01:2501:5502:1902:4903:1903:4904:2004:5005:22
Eltham Park Bexley Road / Glenesk Road (Stop AH) 01:2601:5602:2002:5003:2003:5004:2104:5105:23
Avery Hill Leigh Stationers' Academy (Stop AJ) 01:2701:5702:2102:5103:2103:5104:2204:5205:24
Avery Hill Riefield Road (Stop AK) 01:2801:5802:2202:5203:2203:5204:2304:5305:25
Avery Hill Rennets Wood Road (Stop AL) 01:2801:5802:2202:5203:2203:5204:2304:5305:25
Falconwood Blackfen Road / Boundary Road (->E) 01:2901:5902:2302:5303:2303:5304:2404:5405:26
Blackfen Queenswood Road (Stop A) 01:2901:5902:2302:5303:2303:5304:2404:5405:26
Blackfen Road / Days Lane (Stop B) 01:3002:0002:2402:5403:2403:5404:2504:5505:27
Blackfen Road / Westwood Lane (Stop C) 01:3102:0102:2502:5503:2503:5504:2604:5605:28
Blackfen Road / Ramillies Road (Stop D) 01:3102:0102:2502:5503:2503:5504:2604:5605:28
Blackfen School For Girls (Stop A) 01:3202:0202:2602:5603:2603:5604:2704:5705:29
Blackfen Road / Penhill Road (Stop B) 01:3302:0302:2702:5703:2703:5704:2804:5805:30
Blackfen Beechway (Stop C) 01:3302:0302:2702:5703:2703:5704:2804:5805:30
Blackfen Woodside Lane (Stop D) 01:3402:0402:2802:5803:2803:5804:2904:5905:31
The Anchor /Bexley (Stop E) 01:3402:0402:2802:5803:2803:5804:2904:5905:32
Bexley Riverdale Road (Stop F) 01:3402:0402:2802:5803:2803:5804:2904:5905:32
Bexley Cross Lane (Stop G) 01:3502:0502:2902:5903:2903:5904:3005:0005:33
Old Bexley Parkhurst Road (Stop A) 01:3502:0502:2902:5903:2903:5904:3005:0005:33
Bexley (Stop D) 01:3602:0602:3003:0003:3004:0004:3105:0105:34
Bexley Library (Stop F) 01:3602:0602:3003:0003:3004:0004:3105:0105:34
Bexley Hartford Road (Stop H) 01:3702:0702:3103:0103:3104:0104:3205:0205:35
Bexley Gravel Hill Close (Stop F) 01:3802:0802:3203:0203:3204:0204:3305:0305:36
Bexleyheath Broomfield Road (DA6) (Stop G) 01:3902:0902:3303:0303:3304:0304:3405:0405:37
Bexleyheath Halcot Avenue (Stop H) 01:3902:0902:3303:0303:3304:0304:3405:0405:37
Bexleyheath / Highland Road (Stop Y) 01:4002:1002:3403:0403:3404:0404:3505:0505:38
Bexleyheath Geddes Place (->E) 01:4102:1102:3503:0503:3504:0504:3605:0605:39

Timetable data from Transport for London,

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