In the event that any lot owner objects to the cost of filling his lot, such owner may require the municipality to purchase such lot at a price agreed upon between the municipality and the owner, and, in case of failure to agree upon the price, the municipality shall proceed to condemn such lot. And upon paying to the owner the price that may be fixed therefor, as herein provided, the title thereof shall vest in the municipality, which shall proceed to fill such lot and may sell it to reimburse itself for all expenses and charges.