I have SMOD, a Source Mod for HL2, decided to make a test map.
I saved the .VMF here...
\Steam\steamapps\SourceMods\smodredux\maps
Now, I assumed it would put the .BSP in
\Steam\steamapps\-snip-\half-life 2\hl2\maps
It did, but when I went to move the file to the 1st referred dir, it said there was a bsp already there.
Is that normal for Hammer to save a BSP wherever you save the VMF?