If any property owner shall have failed or refused to comply with the order provided for by the preceding section within fifteen days after the service or publication thereof, then the Mayor may cause such work to be done, and the cost thereof, including a commission of not exceeding twenty percent (20%) of the net cost thereof to the Town for the time of Town employees in supervising such construction, laying the assessment therefor and collecting the same, over and above the actual cost to the Town of such work, shall be assessed against such property. Such assessment shall bear interest at six percent (6%) per annum and shall be immediately due and payable and may be collected in the same manner provided by law for the collection of Town taxes. If such assessment is not paid within thirty days after the same is made, the Recorder may certify the amount of any such assessment with a description of the property chargeable therewith, and the name of the owner thereof, to the Clerk of the County Court to be recorded in the trust deed books of such Clerk's office; and such assessment shall be and constitute from and after the date of such recordation the first lien against such property, subject only to State, County and Municipal taxes and prior assessments.