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neighborhood compatibility, design quality, and minimization of neighbor impacts, the proposed PMC amendments incorporate a series of objective standards (specific, measurable and verifiable parameters), to ensure that impacts of ADUs are minimized. See "Discussion" Section below for more detail on this topic. 2. Single Family ADUs a. Number of Permitted ADUs [see Exhibit A, PMC 18.106.020(C)] On a property with single-family development, the new regulations allow an ADU plus a JADU in addition to a primary residential unit on a parcel with a single-family use. Therefore, a property containing a single-family use could have up to three units: the primary residential unit, a JADU, and an ADU. b. Attached Single-Family ADUs [see Exhibit A, PMC 18.106.040] The following standards apply to attached ADUs on single-family developments (i.e., an ADU that is within an addition to the primary residence, or constructed within a portion of the existing residence). (i) Height and Setbacks The state law does not specify height and setback requirements for attached ADUs beyond those established as Minimum ADU Standards. Staff proposes that attached ADUs be subject to the maximum height and the minimum setback requirements of the main structure. However, consistent with State law, an attached ADU that is less than 16 feet in height and less than 800 square feet may be located 4-feet from property lines even if the setbacks for the zoning district require greater setbacks. Another exception to minimum setbacks specified in state law is that no setbacks are required for a legally existing living area that is converted to an ADU or to a portion of an ADU. For example, if a legally-existing portion of a residence is 3 feet from a side property line where a minimum of 5 feet is required and this portion of the residence is converted to an ADU, the ADU would be compliant with setback requirements per state law since no setbacks are required for the ADU. Staff also proposes that an attached ADU must meet a series of prescribed objective design standards; these are outlined further in the Proposed Objective Standards section of this report. (ii) Square Footage The maximum floor area of an attached single-family ADU would be the greater of the following: 1. 800 square feet; or 2. 850 square feet for a studio or one-bedroom and 1,000 square feet for a two- or more-bedroom unit; or 3. 50 percent of the gross floor area of the existing main dwelling unit, with a maximum increase in floor area of 1,200 square feet. Staff would like to recognize that the above square footage limitations appear to blend together several different concepts, such as overall maximum square footage and number of bedrooms, in addition to factoring in the size of the existing primary dwelling. And, on a P20-0412, Accessory Dwelling Units Planning Commission 4 of 13 isting non- conforming setback(s) may be retained. 2 It should be noted that, for the most part, existing land use correlates closely with zoning — Single-family zoning districts predominantly contain single-family developments and multifamily zoning districts contain multifamily developments of various types. However, this is not universally true in Pleasanton, particularly in multifamily residential districts, where a range of housing types, from apartments, to townhomes and compact/small-lot detached single-family residences are often found. 3 In Pleasanton, the PMC sections for single-family and multifamily districts identify ADU and JADUs as permitted uses; single-family districts include the R-1 and A districts; multifamily zoning districts include the RM and MU districts. The Central-Commercial (C-C) District also allows multifamily dwellings and thus in accordance with the new state law, must now also allow ADUs; JADUs would be allowed in existing single-family dwellings. P20-0412, Accessory Dwelling Units Planning Commission 3 of 13