# A23 road

The A23 road is a major road in the United Kingdom between London and Brighton, East Sussex, England. It is managed by Transport for London for the section inside the Greater London boundary, Surrey County Council and West Sussex County Council for the section shadowed by the M23 motorway, National Highways (as a trunk road) between the M23 and Patcham, and by Brighton and Hove Council from the A27 to the centre of Brighton.
The road has been a major route for centuries, and seen numerous upgrades, bypasses and diversions.

## Route

The A23 begins near Lambeth North tube station. Formerly, it started as Westminster Bridge Road near Waterloo station, but this is now part of the A302. Almost immediately it turns south; the straightness of much of the heading south shows its Roman origins.
The road becomes:
* Kennington Road: 1 mile (1.6 km) long; near Kennington Park it joins the A3 (Kennington Park Road), but soon bears south again, becoming in turn over the next 5 miles (8.0 km):
* Brixton Road
* Brixton Hill
* Streatham Hill
* Streatham High Road
* at Norbury the road becomes London Road; after 1.25 miles (2 km), at
* Thornton Heath the Croydon bypass, Thornton Road and then Purley Way (known for its superstores, particularly IKEA, and for the site of Croydon Airport) takes the place of the original road through Croydon, now the A235, rejoining the A23 at Purley near the Purley War Memorial Hospital, now named Brighton Road.
* continuing south through Coulsdon on the Farthing Way (the relief road for Coulsdon town centre, opened in 2006), over the North Downs to Hooley, the start of the M23 motorway.
** here is now Surrey
* through the built-up areas of Merstham, Redhill and Salfords, skirting Horley
** here is now West Sussex
* making an end-on connection with the M23 spur to Gatwick Airport the A23 becomes a dual carriageway as it is diverted round the airport; it rejoins the original route at Lowfield Heath and continues south into Crawley as London Road
* Crawley bypass: the original road was through the town
* Pease Pottage, southern junction with the M23
* through the relatively rural countryside of West Sussex, before following along valleys to cross the South Downs and entering Brighton
** here is now East Sussex
* becomes the London Road, Brighton, passing under the London Road railway viaduct
* the road ends at Old Steine, Brighton, at a roundabout intersecting with the coastal A259 road, and opposite the entrance to the Palace Pier.

## Major roads intersected by the A23

* A3 and A202 at Kennington
* A205 South Circular Road at Streatham Hill
* A214 at Streatham
* A232 at Waddon
* M23 close to Junction 7 (no southbound access)
* A25 at Redhill
* A264 at Crawley
* M23 at Pease Pottage
* A272 at Bolney
* A27 Brighton Bypass at Mill Road Roundabout

## History

What is now the A23 became an arterial route following the construction of Westminster Bridge in 1750 and the consequent improvement of roads leading to the bridge south of the river by the turnpike trusts. The increase in population of Brighton in the late eighteenth century, which transformed it from a small fishing village to a large seaside resort, enhanced the importance of this road, as did the residence there of George IV, as Prince of Wales, who made Brighton a place of fashion.
When roads were originally classified, the A23 started at Purley Cross. The road north of this section, including Purley Way, which opened to traffic in April 1925, was part of the A22. The current route north to Westminster Bridge dates from April 1935.
The A23 in London has frequently been one of the city's most congested roads. The M23 motorway was originally proposed to run as far north as Streatham, relieving congestion on the route, but the section north of Hooley was never built. At junction 7 of the M23 motorway, signs for the northbound M23 (which terminates a few miles to the north) simply read "Croydon" with no other London destinations marked.
In July 2000, control of the section of road inside the Greater London boundary was transferred from the Highways Agency to Transport for London. This caused delays to a planned relief road of Coulsdon, which had been announced in 1998. The then mayor, Ken Livingstone apologised in 2002 that TfL was unable to construct the relief road due to a lack of funds. The road was eventually completed in 2007, and which under TfL's ownership had acquired a bus lane that suffered ridicule for not having any buses actually running on it.
On 18 March 2010, plans to widen the section between Handcross and Warninglid in West Sussex to three lanes, removing an accident prone bend, were given the go ahead. Work started in autumn 2011 and the scheme was completed and opened in October 2014, with a better-than-expected improvement to safety.

## London to Brighton Veteran Run

The 53-mile (85 km) road from London to Brighton forms the basis of the route of the annual London to Brighton Veteran Car Run. This is featured in the film Genevieve':, although most of the rural motoring scenes were shot in Buckinghamshire. The A23 is also used for various other London to Brighton events, although in many cases part of the route diverges to parallel roads to reduce congestion or add variety.

## Junction list

| County | Location | mi | km | Destinations | Notes |
| East Sussex | Brighton | 0.0 | 0.0 | A259 (Marine Parade / Grand Junction Road) / Maderia Drive – Rottingdean | Southern terminus |
| East Sussex | Brighton | 0.7 | 1.1 | Lewes Road (A270 east) to A27 – Lewes | Western terminus of A270 |
| East Sussex | Brighton | 0.8 | 1.3 | A270 west (Fleet Street) – Hove | Information signed northbound only; northern terminus of A270 concurrency |
| East Sussex | Brighton | 1.1 | 1.8 | A270 west (Old Shoreham Road) – Hove | |
| East Sussex | Brighton | 3.8– 4.2 | 6.1– 6.8 | A27 – Worthing, Lewes | |
| West Sussex | Pyecombe | 5.5 | 8.9 | Begin freeway | Begin freeway |
| West Sussex | Pyecombe | 5.5– 6.3 | 8.9– 10.1 | A273 north to A281 – Hassocks, Pyecombe, Henfield, Newtimber | To A281, Henfield, and Newtimber signed southbound only; southern terminus of A273 |
| West Sussex | Pyecombe | 6.7 | 10.8 | A281 north-west – Henfield | No southbound exit; south-eastern terminus of A281 |
| West Sussex | Newtimber | 7.1– 7.3 | 11.4– 11.7 | Private access | |
| West Sussex | Newtimber | 7.6 | 12.2 | Private access | Southbound exit and entrance only |
| West Sussex | Newtimber–Hurstpierpoint and Sayers Common boundary | 8.0– 8.2 | 12.9– 13.2 | B2117 to B2118 – Hurstpierpoint, Albourne, Sayers Common, Hickstead | Northbound exit and southbound entrance |
| West Sussex | Hurstpierpoint and Sayers Common | 10.8 | 17.4 | B2118 – Hurstpierpoint, Albourne, Henfield, Sayers Common | Southbound exit and northbound entrance |
| West Sussex | Twineham–Bolney boundary | 11.3– 12.3 | 18.2– 19.8 | A2300 east – Burgess Hill, Goddards Green, Twineham, Hickstead Village | Goddards Green signed northbound only; western terminus of A2300 |
| West Sussex | Bolney | 12.7– 13.2 | 20.4– 21.2 | A272 to A2300 – Petersfield, Haywards Heath, Cuckfield, Burgess Hill, Bolney, Ansty, Cowfold | To A2300, Cuckfield, Burgess Hill, and Bolney signed northbound only |
| West Sussex | Bolney | 14.0 | 22.5 | Bolney | Southbound exit only |
| West Sussex | Bolney | 14.1– 14.8 | 22.7– 23.8 | Services | Northbound exit and entrance |
| West Sussex | Ansty and Staplefield | 15.1– 15.4 | 24.3– 24.8 | B2115 to B2114 – Warninglid, Slaugham, Cuckfield, Staplefield | |
| West Sussex | Slaugham | 17.2– 17.5 | 27.7– 28.2 | B2110 – Handcross, Lower Beeding | No southbound exit |
| West Sussex | Slaugham | 18.9 | 30.4 | B2114 to B2110 – Handcross | Southbound exit only |
| West Sussex | Crawley | 19.7– 20.0 | 31.7– 32.2 | M23 north / A264 / B2114 to M25 – Horsham, Broadfield, Pease Pottage, London | To M25, London, Gatwick, and East Grinstead signed southbound only; southern terminus of M23 |
| West Sussex | Crawley | 20.0 | 32.2 | End freeway | End freeway |
| West Sussex | Crawley | 20.9 | 33.6 | A2004 north-east (Southgate Avenue) – Town centre, Southgate, Tilgate | South-western terminus of A2004 |
| West Sussex | Crawley | 21.5 | 34.6 | A2220 (Horsham Road) to A264 – Town centre, Horsham, Southgate, West Green, Broadfield, Bewbush, Faygate | |
| West Sussex | Crawley | 23.4 | 37.7 | A2011 east / A2219 south / Langley Drive to A264 / M23 – Town centre, East Grinstead, London, Langley Green, Northgate, Pound Hill, Three Bridges | Western terminus of A2011; northern terminus of A2219 |
| West Sussex | Crawley | 26.8 | 43.1 | M23 – East Grinstead | Southbound exit only |
| West Sussex | Crawley | 26.9– 27.1 | 43.3– 43.6 | Gatwick Airport to M23 | Northbound exit and entrance |
| Surrey | Charlwood | 27.4 | 44.1 | A217 north / Povey Cross Road – London, Reigate, Charlwood | Southern terminus of A217 |
| Surrey | Salfords and Sidlow | 30.5 | 49.1 | A2044 north-west (Woodhatch Road) to A217 – Woodhatch, Reigate | Information signed northbound only; south-eastern terminus of A2044 |
| Surrey | Redhill | 32.6– 33.0 | 52.5– 53.1 | A25 west – Reigate | Part of A25 concurrency |
| Surrey | Redhill | 32.8 | 52.8 | A25 east (Station Road) – Godstone | Part of A25 concurrency |
| Surrey | Redhill | 33.8 | 54.4 | A242 south-west (Gatton Park Road) to A25 – Reigate, Dorking | North-eastern terminus of A242 |
| Surrey | Reigate and Banstead | 36.1 | 58.1 | M23 south to M25 – Gatwick Airport, Brighton, Heathrow Airport, Dartford | Southbound exit and northbound entrance; northern terminus of M23 |
| Greater London | Croydon | 38.3 | 61.6 | A237 north (Brighton Road) to B2030 – Sutton, Coulsdon, Old Coulsdon, Caterham | Only A237 and Coulsdon signed southbound; southern terminus of A237 |
| Greater London | Croydon | 38.9 | 62.6 | Caterham, Old Coulsdon | Southbound exit and northbound entrance |
| Greater London | Croydon | 40.5 | 65.2 | A22 south (Godstone Road) / A235 north (Brighton Road) / A2022 east – East Grinstead, Kenley, Sanderstead, South Croydon | Direct access to A235 and South Croydon northbound only; southern terminus of A2022 concurrency; northern terminus of A22; southern terminus of A235 |
| Greater London | Croydon | 40.6 | 65.3 | A2022 west (Foxley Lane) – Banstead, Woodcote | Northbound access only; northern terminus of A2022 concurrency |
| Greater London | Croydon | 42.5– 42.7 | 68.4– 68.7 | A232 east / B271 (Stafford Road) / B275 (Denning Avenue) – Croydon, Wallington, South Croydon | A232 and Croydon signed northbound only; southern terminus of A232 concurrency |
| Greater London | Croydon | 42.7 | 68.7 | A232 west (Croydon Road) – Sutton, Wallington | Information signed northbound only; northern terminus of A232 concurrency |
| Greater London | Croydon | 44.0 | 70.8 | A236 (Mitcham Road) / Canterbury Road – Croydon, Wimbledon, Mitcham | |
| Greater London | Croydon | 44.7 | 71.9 | A235 south (London Road) to B266 – Croydon, Selhurst, Thornton Heath | Northern terminus of A235 |
| Greater London | Lambeth | 46.9 | 75.5 | A214 east (Streatham Common North) – Crystal Palace, Norwood | Southern terminus of A214 concurrency |
| Greater London | Lambeth | 47.2 | 76.0 | A214 west / B242 south-west – Clapham Junction, Wimbledon, Tooting, Balham | Northern terminus of A214; information signed northbound only |
| Greater London | Lambeth | 47.3 | 76.1 | A216 south-west to A214 – Mitcham, Wimbledon, Sutton | Information signed southbound only; north-eastern terminus of A216 |
| Greater London | Lambeth | 48.5 | 78.1 | A205 (South Circular) / A24 / A3 / A21 / A20 / A2 – Clapham Junction, Lewisham, Bromley, Tulse Hill | |
| Greater London | Lambeth | 49.5– 49.7 | 79.7– 80.0 | A204 south (Effra Road) – Herne Hill | No access from A23 north to A204 south; northern terminus of A204 |
| Greater London | Lambeth | 49.7 | 80.0 | A2217 (Acre Lane / Coldharbour Lane) – Camberwell Green | No access from A23 south to A2217 |
| Greater London | Lambeth | 49.9 | 80.3 | A203 north-west – West End of London, Vauxhall, Stockwell | No access from A23 south to A203; south-eastern terminus of A203 |
| Greater London | Lambeth | 51.1 | 82.2 | A202 west – West End of London A202 east to A2 / A20 – Peckham, Camberwell Green | No access from A23 north to A202 east, or from A23 south to A202 west |
| Greater London | Lambeth | 51.2 | 82.4 | A3 north – City of London | Northern terminus; no access from A23 north to A3 south |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus ||||||