The Council may prescribe that sidewalks, except crosswalks, shall be built by the owners of lands within the Village which abut upon such sidewalks in the manner and within the time prescribed by ordinance; provided, that, in case of failure of any such owner to comply with the provisions of such ordinance, the Village may build or cause to be built such sidewalk and assess the cost thereof against such owner and against the land improved thereby, in the manner prescribed by the Council by ordinance.