4 room apartment in Paris

My husband and I have sadly decided that our apartment in the 18th arrondissement is too small for us now that we are expecting a baby. However, we don't want to sell as it is close to our hearts. The apartment is 74 square meters. It has 2 bedrooms, tons of built-in storage, and a separate home office. It has one ensuite bathroom with a luxury Italian shower and toilet, and then there is a separate WC for guest use outside of the bedroom. We have been here for 7 years, and as the due date is fast approaching, we hope to find someone who wa...