What tense should this sentence be phrased in based on the accompanying action which has taken place?

In the following scenario you can buy/sell offices in different cities, so say the user purchases an office in London, then the user sells it and we wish to show the user a message that the sale has taken place, should it be phrased like:

this,

You sold your Office which is situated in London for 495,000.

or

You sold your Office which was situated in London for 495,000.

Answer

It is generally phrased as something like:
"Your London office (or office in London) has just sold for $495,000".
This is because of aspect in reference to past tense.