St Denys
Portsmouth line train at St Denys
General information
Location	St Denys,City of Southampton England
Coordinates	50°55′19″N1°23′17″W / 50.9220°N 1.3880°W /50.9220; -1.3880
Grid reference	SU431138
Managed by	South Western Railway
Platforms	4
Other information
Station code	SDN
Classification	DfT category E
History
Original company	London and South Western Railway
Pre-grouping	London and South Western Railway
Post-grouping	Southern Railway
Key dates
1 May 1861	First station opened asPortswood
5 March 1866	Station relocated
1 January 1876	RenamedSt Denys
Passengers
2019/20	0.254 million
Interchange	54,048
2020/21	68,914
Interchange	11,304
2021/22	0.148 million
Interchange	31,499
2022/23	0.176 million
Interchange	34,969
2023/24	0.208 million
Interchange	29,184
Notes Passenger statistics from theOffice of Rail and Road

St Denys railway station serves theSt Denys andPortswood suburbs ofSouthampton inHampshire, England. It is 77 miles 10 chains (124.1 km) down the line fromLondon Waterloo.

Built in 1865, the station is named after the surrounding area, which in turn is named after the Priory of St Denys, a major landmark in medieval Southampton.

The station is at the site of the junction between theSouth West Main Line and theWest Coastway Line running between Southampton andPortsmouth. It is currently served exclusively bySouth Western Railway, although historically there were some additional trains operated bySouthern. There are four platforms; two on the South West Main line and two on the West Coastway line.

The original station was opened by theLondon and South Western Railway on 1 May 1861 and namedPortswood after the small village to the west of the main line. Shortly after, to accommodate the Portsmouth branch line, a new station building was built 0.25 miles (0.40 km) to the south; the relocated station was opened on 5 March 1866. However to avoid confusion with Portsmouth, the station was renamed toSt Denys on 1 January 1876.^[1]

The station buildings themselves are fine examples of the Victorian Italianate classical style architecture introduced to the LSWR byWilliam Tite. The original 1867 station building on platform 1 is Grade IIlisted, now privately owned and renamed Drummond House.^[2] Platforms 2 and 3 house the waiting room and ticket window, whilst the old station buildings on platform 4 house The Solent Model Railway Group,^[3] a local organisation.

All services at St Denys are operated bySouth Western Railway.

The typical off-peak service in trains per hour is:^[4]

• 1 tph toPortsmouth & Southsea
• 1 tph toRomsey viaEastleigh
• 1 tph toSouthampton Central
• 1 tph toSalisbury viaRedbridge

Additional services, including trains to and fromLondon Waterloo,Basingstoke,Winchester andBournemouth call at the station during the peak hours.

Preceding station	National Rail			Following station
Swaythling		South Western Railway South West Main Line		Southampton Central
Bitterne		South Western Railway West Coastway Line
Disused railways
Swaythling		British Rail Southern Region South West Main Line		Northam

• In August 1939, a train overran signals and was derailed by trap points. The accident caused a set of points to move, diverting an approaching boat train. This averted a more serious accident, as wreckage was foul of the route the boat train should have taken.^[5]
• On 14 August 1940, a passenger train, hauled bySR Lord Nelson class4-6-0 No. 860Lord Hawke, was derailed due to enemy action. A bomb fell on the line ahead of the train, which was unable to stop in time.^[5]
• On 29 October 1959, a passenger train, hauled bySR West Country Class4-6-2 No. 34020Seaton, overran signals and was derailed by trap points.^[5][6]
• On 12 December 1960, a passenger train, hauled by SR West Country Class 4-6-2 No. 34022Exmoor, overran signals and was derailed. Two people were injured.^[5]
• On 28 February 2022 ascooter was thrown onto the tracks at the station, causing ashort circuit with thethird rail electrical supply.^[7] Eyewitnesses reported that the subsequentelectrical arcing caused flames so bright that it "looked like daytime".^[8]

• Train times andstation information for St Denys railway station fromNational Rail
• Local Rail Information

v t e Railway lines in and around Southampton
Legend
West Coastway Line toBrighton andPortsmouth Fareham to Gosport Line Fareham Wessex Main Line toBristol viaSalisbury M27 motorway Sprat and Winkle Line toAndover Knowle Halt Romsey Meon Valley Railway toAlton Bishops Waltham Swanwick Durley Halt Botley Chandlers Ford River Hamble South West Main Line toLondon Waterloo Hedge End A27 road Eastleigh Bursledon Eastleigh Works Hamble Hamble fuel terminal Southampton Airport Parkway Netley Hospital Line Netley M27 motorway Sholing A27 road Woolston Swaythling Bitterne Portswood(1861–66) River Itchen St Denys Northam Road(1839–40) Northam TMD Northam Southampton Tunnel Southampton West End (1847–95) Southampton Terminus Southampton Central Eastern Docks Town Quay Millbrook Central Docks Western Docks Container Port Nursling Redbridge Fawley Refinery River Test Fawley A35 road Hythe Totton Marchwood Port Marchwood Ashurst (New Forest) Beaulieu Road Lymington Pier Ferry toYarmouth IoW Brockenhurst Lymington Town   Southampton and Ampress Works Halt Dorchester Railway toDorchester viaRingwood South West Main Line toBournemouth

• Railway stations in Southampton
• DfT Category E stations
• Former London and South Western Railway stations
• Railway stations in Great Britain opened in 1861
• Railway stations in Great Britain closed in 1866
• Railway stations in Great Britain opened in 1866
• Railway stations served by South Western Railway
• Grade II listed buildings in Hampshire
• 1861 establishments in England

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