27.21.140 Urban Lot Split Development Standards
Development standards shall be applied to each parcel individually. Each parcel created by an Urban Lot Split shall conform to the Two-Unit Development Standards in Section 27.21.070 and Title 26 of the San Mateo Municipal Code except as otherwise listed below.
(a) Demolition. The demolition of 50% or more a structure's exterior structural walls or roof shall require the issuance of a ministerial Special Use Permit for the substantial removal of the existing structure pursuant to the applicable sections of Section 27.18.035 of the Municipal Code.
(b) Number of Units. On a lot established through an Urban Lot Split pursuant to Government Code 66411.7, a maximum of two dwelling units shall be allowed per resultant parcel. In no case shall more than two dwelling units on a single lot in any otherwise allowed combination of primary units, SB 9 units, ADUs and/or JADUs be permitted.
(c) Parcel Map and Configuration.
(1) Number of Parcels. The parcel map shall create no more than two new parcels.
(2) Parcel Size.
(A) Each newly created parcel shall be of approximately equal areas. The smallest subdivided parcel shall not be less than forty percent (40%) of the lot area of the original parcel proposed for subdivision.
(B) Each newly created parcel shall be at least 1,200 square feet in gross area.
(d) Access and Driveways.
(1) Parcels resulting from an Urban Lot Split shall have access to, provide access to, or adjoin the public right-of-way through their frontage, access corridor, or access easement(s).
(A) A minimum 10-foot-wide strip of land owned in fee (i.e. flag lot 'pole') or 10- foot wide access easement shall be provided for all flag lots or landlocked parcels created through an Urban Lot Split. The width of the strip of land owned in fee for flag lots or width of the access easement for landlocked parcels shall not be less than the driveway width requirements of Section 27.64.025.
(B) A minimum 20-foot-wide strip of land owned in fee (i.e. flag lot 'pole') or 20- foot wide access easement shall be provided for all flag lots or landlocked parcels created through an Urban Lot Split where the length of the flag lot 'pole' or access easement is greater than 150 feet in length.
(2) Access to all new lots and/or units shall be compliant with the San Mateo Consolidated Fire District standard details and specifications for driveways and turnarounds.
(3) Easements for the adequate provision of public services and utilities and egress/ingress may be required.
(4) Proposed boundary lines shall be free of jogs in alignment, except where physical conditions and established property lines preclude the establishment of straight boundary lines, or such alignment would prohibit the creation of lots pursuant to this Article which are capable of being developed with two residential units that are at least 800 square-feet in size each.
(e) Other Development Standards.
(1) All development pursuant to this Article shall also be subject to additional development standards as outlined in Section 27.21.070(f) of this Chapter above.