I Purchased a house 6 months ago, no one had lived in the house for a year prior to my buying it. Both the front and rear gardens both over grown so we flattened them both :)
The Front garden was covered in the material that stops weeds, when we ripped this up there was a strange smell, that we put down to the soil being covered up for so long.
We plan to change the front garden into a an extra parking place so currently have bare soil, no recently the soil has started to smell, it isn't a drain smell but an odd smell which is hard to explain. We have the same smell in some bare soil in the back garden, we have no idea what is causing the smell but wuld like to be rid pf the smell as you can smell it from the path at the front of the house.