A. 
This section is applicable only where a portion of a lot is within an area planned to be part of a future street, alley, or other public right-of-way as determined from an officially adopted plan, and the acquisition of such portion would not reduce the buildable lot width to less than forty feet.
B. 
In cases to which this section applies, the portions of any lot within any such future right-of-way area shall not be occupied by structures other than those encroachments allowed in future rights-of-way as provided in subsection C of this section. All other required setbacks, yards, and open areas shall be provided in addition to the future right-of-way areas, and the future right-of-way lines shall be considered to be lot lines for purposes of measuring such other setbacks, yards, and open areas.
C. 
Permitted Encroachments. The following encroachments are permitted within the future rights-of-way area:
1. 
Fences, walls, or hedges, not over 2 feet high.
2. 
Landscaping.
3. 
Access walkways and driveways.
A. 
Each lot in the OR and OS zones shall have front, side, and rear yard setbacks not less than 25 feet.
B. 
Permitted Encroachments. The following encroachments are permitted within the required yards:
1. 
Yard, Abutting a Street.
a. 
Building features, such as:
(i) 
Cantilevered eaves, awnings, and shading devices. These features may be supported from the ground within the required yard to the extent permitted for encroachment of other architectural features under the next subsection.
(ii) 
Architectural features, not more than 2.5 foot projection into required yard.
b. 
Signs, subject to sign regulations of Division 9.
c. 
Fences, walls, and hedges, not over 3.5 feet high with solid part not over 2 feet high.
d. 
Decorative pools, not over 18 inches deep.
e. 
Landscaping.
f. 
Access walkways and driveways.
2. 
Yard, Abutting a Residential Zone.
a. 
Building features, such as:
(i) 
Cantilevered eaves, awnings, and shading devices, projecting not more than 2.5 feet into required yard.
(ii) 
Architectural features, projecting not more than 2.5 feet into required yard.
b. 
Free-standing mechanical equipment, subject to sight-screening and noise control provisions of code.
c. 
Above-ground utility-owned facilities, when otherwise permitted within utility easement.
d. 
Signs, subject to sign regulations of Division 9.
e. 
Swimming and therapeutic pools, no closer than 5 feet from property line and if required fencing permits.
f. 
Decorative pools, not over 18 inches deep.
g. 
Access walkways.
h. 
Parking and driveways, subject to the minimum landscape buffer requirement of Section 19.632.010.