We don't know why they only mow their lawn once a month; maybe as a nice & friendly neighbor, that is obviously concerned with how the area looks, you could offer to help them.

Since when is it *required* that lawns be mowed once a week? There is NOTHING in the city ordinances dictating how often a property owner must mow their lawn. I've pasted below what I believe to be the only pertinent ordinance. (found at https://library.municode.com/ma/chelsea/codes/code_of_ordinances?nodeId=PTIICOOR_CH18NU_S18-2DEBUSTVALANU)

Sec. 18-2. - Determination of buildings, structures or vacant land as a nuisance.
(a) Findings. The city council finds and determines that vacant, abandoned or neglected properties are obnoxious, tend to create a blighting influence on the surrounding neighborhood, have the effect of reducing property values in their surrounding neighborhood, and constitute a public nuisance. Further, the council finds that vacant, abandoned or neglected properties are inimical and destructive to the rights and values of private property owners, as well as the community at large. (b) Purpose. The purpose of this section is to eliminate vacant, abandoned or unsafe properties and the blighting influence they have on surrounding neighborhoods. Further, this section will provide additional enforcement tools to the city in an effort to enhance the health, safety and welfare of the community at large. (c) Definitions. Without limiting the foregoing definition, the term "buildings," "structures" or "vacant land" shall be considered a nuisance, within the meaning of this section, under the following conditions: (1) Buildings or structures that are abandoned, unused or open to the weather for a period of 90 days or more; (2) Buildings, structures or vacant land overgrown with vegetation which are dangerous to life or limb, especially unsafe in case of fire, or violate the provisions of M.G.L. c. 139. (d) Procedure. Wherever a nuisance is found to exist, a careful survey of the premises shall be made by a board consisting of the building inspector, health agent, city engineer and fire chief or their respective designees. This board, under the direction of the building inspector, shall make a written report of its findings and shall provide written notice to the owners of the property, which notice shall describe the condition which constitutes the nuisance and shall order the owner to abate the same in not less than 48 hours. If the owner of the property fails or neglects to comply with such order or otherwise abate the nuisance, the city may abate the nuisance and the costs, charges and fees incurred thereby shall be paid by the owner within 30 days of the furnishing of an account to such owner. If payment is not made, then the costs for abatement of the nuisance, and all related costs, including the cost of collection, shall constitute a lien on the property under the provisions of M.G.L. c. 139, § 3A. (e) Penalty. Any owner who fails or neglects to comply with the order of the board or otherwise fails or neglects to abate such nuisance shall be liable for a fine as provided in section 1-8(b). Each day of such failure or neglect shall constitute a separate violation.
(Code 1994, § 2-23; Ord. of 10-19-1998)

Thank you for reporting this issue, we will have ISD review the situation.

The owners lawn mower has been broken.
He is purchasing a new one tomorrow and will cut the grass.
Thank you