What about a shed? Is a permit required?

Under the new edition of the State Building Code 780 CMR 8th edition any shed or accessory structure that is less than 200 square feet does not require a building permit. Even though it does not require a building permit it must still meet the setback requirements of the zoning bylaws. The bylaws require a setback from the rear and side lot lines of 15 feet. Many residences have asked to set their small sheds closer than the required 15 feet. If the shed is a modular type that can be moved such as one on skids one can request the shed to be closer than 15 feet. One must obtain a written letter from their abutting neighbor that states that the neighbor understands the bylaw and that they agree to the requested setback. Please have a statement indicating what the setback wil be. Please understand that at any time in the future if the neighbor demands that the shed be set back to the required setback of 15 feet you will be required to move the shed. Why do we allow this exception to the setback zoning? Quite simply we have found that it actually makes for good neighbors. In 20 years that we have allowed this only 3 sheds have had to be repositioned.