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RCA Attachment A 79 enough distance between a street and a rear lot line that a through lot is no longer a through lot? 80 Alternatively, if thisprivacyimpact can be mitigated by enhanced screeningrather than increased 81 distance, what amount of screening is adequate? 82 Through Lot Regulations in Neighboring Cities 83 Planning Division staff looked to Roseville’s neighboring communities to learn how their subdivision 84 requirements addressed through lots. The pertinent regulations are included below. 85 Arden Hills: Double frontage lots shall be avoided except where lots back on an arterial or community 86 street. 87 Falcon Heights:\[Through lots appear to be permitted.\] 88 Lauderdale:\[Through lots appear not to be regulated.\] 89 Little Canada:Double frontage, or lots with frontage on two (2) parallel streets, shall not be permitted 90 except: where lots back on arterial streets or highways, or where topographic or other conditions render 91 subdividing otherwise unreasonable. Such double frontage lots shall have an additional depth of at least 92 twenty (20) feet in order to allow space for screen planting along the back lot line. 93 Maplewood:Double-frontage lots shall not be permitted, except where topographic or other 94 conditions render subdividing otherwise unreasonable. Such double-frontage lots shall have an 95 additional depth of at least 20 feet in order to allow space for a protective plant screen along the 96 back lot line. 97 New Brighton:Through or Double Frontage Lots. Such lots shall be discouraged. 98 Shoreview:Double frontage lots (lots with frontage on two parallel streets) shall not be permitted except 99 where lots back to a major thoroughfare. Such lots shall have an additional depth of at least 15 feet in 100 order to allow for screen planting and berming along the back lot line. 101 St. Anthony:\[Through lots appear to be permitted.\] 102 Vadnais Heights:The use of double-facing and flag lots shall be prohibited. 103 Minneapolis:Through lots shall be avoided. 104 St. Paul:Through lots shall be avoided except where essential to provide separation of residential 105 development from traffic arteries or to overcome specific disadvantages of topography and orientation. 106 On balance, the subdivision regulations in these municipalities seek to avoid or discourage through lots, 107 except for situations where “topographic or other conditions” make strict avoidance of through lots 108 unreasonable. And in situations where through lots are allowed, most of these regulations increase the 109 minimum required lot depth and require landscaping to mitigate the impact of the street abutting rear 110 yards. But these regulations do not seem to differentiate between creating through lots within a proposed 111 plat and creating through lots from existing parcels adjacent to the proposed plat. 112 Planning Considerations 113 In determining how to effectively regulate through lots to prevent or mitigate adverse impacts of a plat 114 creating through lots out of existing parcels adjacent to a plat, Planning Division staff considered the 115 following: 116 Subdivision regulations could generally prohibit (or discourage or avoid) through lots, but should 117 allow exceptions where topographic or other conditions make such a prohibition unreasonable. 118 The proximity of a rear lot line to a street itself affects the potential for impacts on through lots 119 much than the proximity of a rear lot line to a street right-of-way, which can be particularly wide 120 in some cases. PROJ0042_Amdt1_ThroughLots_RCA_20200928 Page 3 of 6 Page 3 of 9