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21.218 An Ordinance to Amend Zero Lot Line Section of Code - POST LMCity of Northampton  MASSACHUSETTS      In the Year Two Thousand Twenty One                              Upon the Recommendation of Mayor David J. Narkewicz and Planning & Sustainability  21.218 AN ORDINANCE TO AMEND ZERO LOT LINE SECTION OF CODE An Ordinance of the City of Northampton, Massachusetts, providing that the Code of Ordinances, City of  Northampton, Massachusetts, be amended to alter the requirements of Zero Lot Line projects in order  to maintain more consistent setbacks within neighborhoods.  Be it ordained by the City Council of the City of Northampton, in City Council assembled, as follows:   Move subsection 10.14 to a new Subsection in Chapter 350-6 and amend as shown § 350-10.146.13Zero lot line (ZLL) developments. Zero lot line (ZLL) developments are developments, or portions of developments, where house lots have a minimum side yard setback of zero feet on one side (the "zero lot line"), while the opposite side meets the standard side yard setback of the district (the “standard setback”), if the following standards are met: A. If a garage or other parking structure is built, it must be set back at least twice the normal front yard setback, or the garage/structure must cover no more than 25% of the front facade of the principal structure; and B.A. The zero lot line side of a house lot must: 1) Abut permanently protected open space where the owner can show a maintenance easement, as defined below, will be granted; or 2) Abut the lot line of a lot which is under the control of the same property ownercommon ownership at the time the zero lot line development is proposed and i. shares a party wall with the abutting structure on the separate parcelcommonly-owned lot OR has a reduced side setback reduction from the standard setback of up to 5’ from the standard setback. i.ii. Abuts the typicalstandard setback area of an adjoining zero lot line lot under the samecommon ownership. However the last such lot in a series as described under the same ownership shall have 2x the typicalstandard setback for both side lotsthe standard.; i. ii. C.B. A five-foot maintenance easement must be granted toobtained by the owner of a house on a zero lot line by fromthe abutting property owner abutting the zero lot line in any development pursuant to in A(1) or A(2)(ii) above to allow normal maintenance. Said easement may allow a roof overhang of up to two feet and may allow roof drainage to sheet flow intoonto the easement area and sheet flow across the abutting property. In. addition, private covenants may be required to insure proper maintenance of the house abutting the zero lot line; and C. There shall be a minimum of four shade trees of not less than 2.51.5 inches' caliper planted or maintained on each lot in accordance with the City’s Tree List & Planting Guidelines, including two along the street frontage. (See also § 350-6.5D.) D. Only one principal structure per lot is allowed in a zero lot line development. E. Any detached accessory structure on the lot must meet the minimumstandard setbacks for such structures.