By rail and tube
London Underground (the Tube) connects Heathrow directly with central London. This is the cheapest convenient way to travel as long as you don't have too much luggage.
For Northumberland House, take the Piccadilly line to Piccadilly Circus and change to the Bakerloo line, going south to Charing Cross.
A possibly faster but certainly more expensive option is the Heathrow Express. This runs every 15 minutes to and from Paddington Station in central London. The journey takes about 15 minutes. From Paddington take the Tube, Bakerloo line to Charing Cross.
National Express run bus services between the terminals and central London. Most go to Victoria. Unless you arrive after the last tube we wouldn't recommend this service for Trafalgar Square.
We'd recommend First Capital Connect which runs train services to Bedford via the City (which stop at Kings Cross). From here, take the Piccadilly line southbound to Piccadilly Circus and change to the Bakerloo line south to Charing Cross. Otherwise, you could use the Gatwick Express which runs trains every 15 minutes to Victoria. The journey takes about 30 minutes. All trains come into the South Terminal, but there is a free Inter Terminal Transit train every 3 minutes (journey time 2 minutes).
Gatwick Airport is well connected by National Express coach services to the rest of the UK. The Airbus A5 runs to Victoria from the South Terminal.
Use the Tube, District or Circle line to Embankment.
London Underground, Bakerloo line to Charing Cross.
Take the Northern line or Bakerloo line northbound to Charing Cross.
From Kings Cross or Euston
From Kings Cross, take the Piccadilly line southbound to Piccadilly Circus, then change to the Bakerloo line south to Charing Cross. From Euston, take the Northern line southbound to Charing Cross.
From Liverpool Street
Take the Central line westbound to Tottenham Court Road, then change to the Northern line Southbound to Charing Cross.
If you've too much luggage to carry easily on and off trains or buses then you might consider a taxi from wherever you are. We recommend using a black cab. For Northumberland House ask for 'Northumberland Avenue'.
We recommend using a route planner such as AA route planner, RAC route planner, Green Flag route planner or any other.
Enter Northumberland Avenue as your destination. Then...
Entering Northumberland Avenue from Trafalgar Square
-Northumberland House is about a third of the way down the road on your right, the 'Edward VII rooms' entrance.
Entering Northumberland Avenue from the Embankment
-Northumberland House is about two thirds of the way down the road on your left, look out for the 'Edward VII rooms' entrance.
Estimate time of 12 minutes
To the School
Leave reception and turn left on to Northumberland Avenue.
Follow this road up to Trafalgar Square.
At the end, cross the road at the first crossing on your right to the north side of the road. Continue forward on the path as it veers round onto the Strand.
Walk the length of the Strand to Waterloo Bridge, and cross to the north side of the road at the crossing on your left. Continue right as the path veers round into the Aldwych, crossing the side roads and staying on the Aldwych until you reach Kingsway. Cross Kingsway at the crossing in front of you.
Continue round the Aldwych taking the next left into Houghton Street and the School.
Leave Houghton Street past the Nat West Bank, turning right into the Aldwych.
Cross Kingsway at the crossing directly ahead of you and continue around to the end of the Aldwych, which connects to the Strand on your right.
Continue down the Strand, and at the first crossing on your left, cross to the south side of the Strand. Continue right along the Strand to the other end. At the Trafalgar Square end of the Strand, continue along the path as it veers left. Cross to the south side of Northumberland Avenue (with the road sign 'Charing Cross') at the crossing directly ahead of you and continue left down Northumberland Avenue.
The residence is a third of the way down Northumberland Avenue on your right at the 'Edward VII rooms'.
For an interactive map, please visit this map of the local area.