Night bus route N21 in London: Bexleyheath Clock Tower ↔ Charing Cross

Bus route N21 in London links “Bexleyheath Clock Tower” and “Charing Cross”. This is a night route. The return journey ends at “Geddes Place” (50 m from “Bexleyheath Clock Tower”).

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Where bus N21 goes

From “Bexleyheath Clock Tower” to “Charing Cross”: 87 stops. On the way: “Bexleyheath / Highland Road”, “Halcot Avenue”, “Broomfield Road (DA6)”, “Gravel Hill Close”, “Hartford Road”, “Bexley Library”, “Bexley”, “Bexley War Memorial”, “Cross Lane”, “Riverdale Road”. Then “Bridgen / The Anchor”, “Woodside Lane”, “Beechway”, “Blackfen Road / Penhill Road”, “Blackfen School For Girls”, “Blackfen Road / Ramillies Road”, “Blackfen Road / Wellington Ave”, “Sycamore Avenue”, “Queenswood Road”, “Blackfen Road / Boundary Road”. Then “Rennets Wood Road”, “Stationers’ Crown Woods Academy”, “Bexley Road / Reinickendorf Avenue”, “Bexley Road / Glenesk Road”, “Eltham High Street / Foots Cray Road”, “Eltham High Street / St Mary’s Place”, “Eltham High Street / Passey Place”, “Eltham Church / High Street”, “Kingsground”, “Greenway (SE9)”. Then “Eltham Hill / Middle Park Avenue”, “Eltham Road / Westhorne Avenue”, “Cedarhurst Drive”, “Eltham Road / Kidbrooke Park Road”, “Courtlands Avenue (SE12)”, “Weigall Road”, “Cambridge Drive”, “Lee Green”, “Lampmead Road”, “Dacre Park”. Then “Brandram Road”, “Belmont Park”, “Marischal Road”, “Belmont Hill”, “Lewisham Clock Tower”, “Lewisham Station”, “Lewisham Station / Loampit Vale”, “Loampit Vale / Jerrard Street”, “Undercliff Road”, “Lewisham College / Ashmead School”. Then “Lucas Street”, “Malpas Road”, “Amersham Road”, “Marquis of Granby / Goldsmiths”, “New Cross Gate Station”, “New Cross Bus Garage”, “New Cross Road / Besson Street”, “Briant Street”, “Pomeroy Street New Cross”, “Old Kent Road / Ilderton Road”. Then “Commercial Way Peckham”, “Peckham Park Road”, “Malt Street”, “Trafalgar Avenue”, “Dunton Road”, “Old Kent Road / East Street”, “Bricklayer’s Arms”, “Bartholomew Street”, “Trinity Street / The Roebuck”, “Borough Station / Great Dover St”. Then “Union Street”, “London Bridge Borough High St”, “Monument”, “Bank Station / King William St”, “Poultry / Bank Station”, “St Pauls Churchyard”, “St Paul’s Cathedral”, “City Thameslink Stn / Ludgate Circus”, “Fetter Lane”, “Chancery Lane (EC4)”. Before “Charing Cross”: “The Royal Courts of Justice”, “Aldwych / Australia House”, “Aldwych / Drury Lane”, “Savoy Street”, “Bedford Street”.

On the way back the bus takes a different route, from “Charing Cross” to “Geddes Place” (84 stops). Only in this direction does it call at “Southampton Street / Covent Garden”, “Aldwych”, “Ludgate Circus”, “Ludgate Hill / Old Bailey”, “Mansion House”, “Cannon Street Station”, “London Bridge Bus Station”, “Southwark Street The Borough”, “Blackhorse Court”, “Burgess Park / Dunton Road”, “Marquis Of Granby”, “Tyrwhitt Road/St Johns Station”, “Manor Park”, “Lee Green/The Old Tigers Head”, “Sutcliffe Park”, “Eltham Hill / Westhorne Avenue”, “Vandyke Cross”, “Sherard Road”, “Eltham High Street / Roper Street”, “Eltham High Street / Pound Place”, “Eltham High Street / Westmount Road”, “Leigh Stationers’ Academy”, “Riefield Road”, “Blackfen Road / Days Lane”, “Blackfen Road / Westwood Lane”, “The Anchor/Bexley” and “Parkhurst Road”. Only in the direction of “Charing Cross” does it call at, among others, “Bexley War Memorial”, “Bridgen / The Anchor”, “Blackfen Road / Wellington Ave”, “Sycamore Avenue”, “Stationers’ Crown Woods Academy” and “Bexley Road / Reinickendorf Avenue”. For the way back, board nearby: “Bexley War Memorial” → “Parkhurst Road” (150 m), “Bridgen / The Anchor” → “The Anchor/Bexley” (50 m), “Blackfen Road / Wellington Ave” → “Blackfen Road / Westwood Lane” (50 m) and “Sycamore Avenue” → “Blackfen Road / Days Lane” (100 m). Towards “Charing Cross”, board nearby: “Southampton Street / Covent Garden” → “Savoy Street” (100 m), “Aldwych” → “Aldwych / Drury Lane” (50 m), “Ludgate Circus” → “City Thameslink Stn / Ludgate Circus” (150 m) and “Ludgate Hill / Old Bailey” → “City Thameslink Stn / Ludgate Circus” (100 m).

Connections

Shared sections with other routes: between “Marquis of Granby / Goldsmiths” and “Bricklayer’s Arms” it shares the road with route N53; between “Lewisham Clock Tower” and “New Cross Bus Garage” it shares the road with route N136; between “Poultry / Bank Station” and “Charing Cross” it shares the road with routes N550 and N551.

Connections by stop, in route order:

• “Bexleyheath Clock Tower”: bus N89
• “Bexleyheath / Highland Road”: bus N89
• “Belmont Park”: bus N89
• “Marischal Road” (only towards “Charing Cross”): bus N89
• “Belmont Hill”: buses N89 and N199
• “Lewisham Clock Tower” (only towards “Charing Cross”): buses N89 and N199
• “Lewisham Station”: buses N89 and N199
• “Lewisham Station / Loampit Vale” (only towards “Charing Cross”): buses N89 and N199
• “Lucas Street”: bus N171
• “Malpas Road”: bus N171
• “Amersham Road”: buses N89 and N171
• “Marquis of Granby / Goldsmiths” (only towards “Charing Cross”): buses N89 and N171
• “New Cross Gate Station”: buses N89, N171 and N343
• “New Cross Bus Garage”: buses N89, N171 and N343
• “New Cross Road / Besson Street” (only towards “Charing Cross”): buses N89, N171 and N343
• “Briant Street”: buses N89 and N171
• “Peckham Park Road”: bus N381
• “Malt Street”: buses N63 and N381
• “Trafalgar Avenue”: bus N63
• “Dunton Road” (only towards “Charing Cross”): bus N63
• “Old Kent Road / East Street”: bus N63
• “Bricklayer’s Arms”: buses N1 and N63
• “Bartholomew Street”: buses N1 and N63
• “Trinity Street / The Roebuck”: buses N133 and N343
• “Borough Station / Great Dover St”: buses N133 and N343
• “Union Street”: buses N133, N343 and N381
• “London Bridge Borough High St”: buses N133, N199, N343 and N381
• “Monument”: buses N133 and N199
• “Bank Station / King William St” (only towards “Charing Cross”): buses N8, N25, N133, N199 and N242
• “Poultry / Bank Station” (only towards “Charing Cross”): buses N8, N25, N199 and N242
• “St Pauls Churchyard” (only towards “Charing Cross”): buses N8, N25, N199 and N242
• “St Paul’s Cathedral”: buses N8, N25, N63, N89, N199 and N242
• “City Thameslink Stn / Ludgate Circus” (only towards “Charing Cross”): buses N8, N25, N63, N89, N199 and N242
• “Fetter Lane”: buses N63, N89 and N199
• “Chancery Lane (EC4)” (only towards “Charing Cross”): buses N89 and N199
• “The Royal Courts of Justice”: buses N1, N9, N44, N68, N87, N89, N91, N155, N171 and N199
• “Aldwych / Australia House” (only towards “Charing Cross”): buses N1, N9, N44, N68, N87, N89, N91, N155, N171 and N199
• “Aldwych / Drury Lane” (only towards “Charing Cross”): buses N1, N9, N44, N68, N87, N89, N91, N155, N171, N199 and N343
• “Savoy Street” (only towards “Charing Cross”): buses N1, N9, N44, N68, N87, N89, N91, N155, N171, N199 and N343
• “Bedford Street” (only towards “Charing Cross”): buses N1, N5, N9, N20, N29, N41, N44, N68, N87, N89, N91, N113, N155, N171, N199, N279 and N343
• “Charing Cross”: buses N3, N5, N9, N11, N18, N20, N29, N41, N44, N87, N89, N91, N97, N109, N113, N118, N155, N199, N279 and N343
• “Trafalgar Square/Charing Cross”: buses N3, N5, N9, N11, N18, N20, N29, N41, N44, N87, N89, N91, N97, N109, N113, N118, N155, N199, N279 and N343
• “Southampton Street / Covent Garden” (only towards “Geddes Place”): buses N1, N9, N44, N68, N87, N89, N91, N155, N171, N199 and N343
• “Aldwych” (only towards “Geddes Place”): buses N1, N9, N44, N68, N87, N89, N91, N155, N171, N199 and N343
• “Ludgate Circus” (only towards “Geddes Place”): buses N8, N25, N63, N89, N199 and N242
• “Ludgate Hill / Old Bailey” (only towards “Geddes Place”): buses N8, N25, N63, N89, N199 and N242
• “Mansion House” (only towards “Geddes Place”): buses N8, N25, N199 and N242
• “Cannon Street Station” (only towards “Geddes Place”): buses N8, N25, N199 and N242
• “London Bridge Bus Station” (only towards “Geddes Place”): buses N133, N199, N343 and N381
• “Southwark Street The Borough” (only towards “Geddes Place”): buses N133, N199, N343 and N381
• “Blackhorse Court” (only towards “Geddes Place”): buses N1 and N63
• “Burgess Park / Dunton Road” (only towards “Geddes Place”): bus N63
• “Marquis Of Granby” (only towards “Geddes Place”): buses N89 and N171
• “Geddes Place”: bus N89

Pages for these routes: bus N1, bus N109, bus N11, bus N113, bus N118, bus N133, bus N136, bus N155, bus N171, bus N18, bus N20.

Passes and concessions

Tickets, passes and concessions are covered on a separate page: how to pay for public transport in London.

Questions about bus N21

Does bus N21 go to “Bexley Library”?

Yes, in both directions.

Where can I change from bus N21 to another bus route?

Most routes stop at “Charing Cross” and “Trafalgar Square/Charing Cross” (N3, N5, N9, N11, N18, N20, N29, N41, N44, N87, N89, N91, N97, N109, N113, N118, N155, N199, N279 and N343). All other stops with connections are listed above.

Checked on 29 September 2026. Source of the route and stops: Transport for London (TfL).