Standard Tuning, Capo on 2 to match recording.
Live he plays it with Capo on 1 though.
Also, on the second to last line in the Chorus, the D is optional.

Cadd9 G Em7 D x2

Cadd9              G
Sometimes late at night
      Em7             D
I sit up in bed and write
            Cadd9    G   Em7  D
Letters to London
 Cadd9           G
I use a pen and pad
             Em7               D
To try and prove that what we had
            Cadd9     G  Em7  D
Had to mean something

Chorus:

     Cadd9 G    Em7        D
I say, I miss a Hollywood kiss
    Cadd9         G
When soft finger tips
            Em7             D
Rolled like tears down my skin
             Cadd9 G
I didn't take care of
   Em7       D
A beautiful love
     Cadd9             G
Oh my God what have I done
           Em7   D
I let it become
          Cadd9    G   Em7   D
Letters to London

 Cadd9                  G
I don't know where she went
     Em7                  D
So I don't know where to send
          Cadd9    G  Em7   D
Letters to London
   Cadd9               G
But maybe they're for me
       Em7        D
Simple poet melody
             Cadd9       G  Em7  D
But I gotta do something

Chorus:

     Cadd9 G    Em7        D
I say, I miss a Hollywood kiss
    Cadd9         G
When soft finger tips
            Em7             D
Rolled like tears down my skin
             Cadd9 G
I didn't take care of
   Em7       D
A beautiful love
     Cadd9             G
Oh my God what have I done
           Em7   D
I let it become
          Cadd9    G   Em7   D 
Letters to London

Cadd9  G  Em7  D

       Cadd9       G           Em7              D
No, you can't go around keeping angels on the ground
       Cadd9       G           Em7              D
No, you can't go around keeping angels on the ground         .         .            .               .
       Cadd9       G           Em7              D
No, you can't go around keeping angels on the ground
  Cadd9    G     Em7    D
I know I know I know
           Cadd9   G   Em7    D
London come home

Chorus:

Cadd9 G     Em7        D
I miss your Hollywood kiss
         Cadd9         G
When your soft finger tips
            Em7             D
Rolled like tears down my skin
             Cadd9 G
I didn't take care of
   Em7       D
My beautiful love
     Cadd9             G
Oh my God what have I done
           Em7   D
I let it become
          Cadd9    G   Em7   D
Letters to London

             Cadd9     G    Em7    D
My letters to London
                     Cadd9     G    Em7   D
I write my letters to London, yeah
             Cadd9    G   Em7   D
My letters to London

Cadd9              G
Sometimes late at night
      Em7             D
I sit up in bed and write
            Cadd9
Letters to London

Any comments or corrections, email me at hulanic@gmail.com