Lot Consolidation Regulations in the RM-1-1 and RM-1-2 Zones
San Diego Municipal Code § 131.0453
in effectIn the RM-1-1 and RM-1-2 zones within urbanized communities, lots that are
consolidated or otherwise joined together to accommodate development are subject to
the following:
(a)
Any building on a consolidated premises may cross only one previous property
line, as shown in Diagram 131-04P;
(b)
If the consolidation results in a total street frontage exceeding 60 feet, the
number of dwelling units permitted within any single structure shall not exceed
the number of dwelling units that would have been permitted on the largest
premises before the consolidation, as shown in Diagram 131-04P;
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Chapter 13: Zones
(3-2026)
Diagram 131-04P
Buildings on Consolidated Lots
Building 2
(2 Units)
Building 1
(2 Units)
100'
50
'
50'
25'
12'-6" (Side setback is 10% of width of consolidated premises)
NOTE: Each building may cross
only one pre-existing
property line
NOTE: The max number of units in any one
building may not exceed the number of
units permitted on a single 50' X 100' lot
(the largest pre-existing premises).
125' max
(width of consolidated premises)
Pre-existing
property lines
CL
STREET
Building 3
(1 Unit)
(c)
If the depth of the lots to be consolidated is greater than 139 feet, only 139 feet
shall be used in the calculation to determine the number of dwelling units
permitted; and
(d)
Within the front 50 percent of the consolidated premises, a minimum 3-foot
offset in the front facade shall be required for any structure where the
dimension most parallel to the street exceeds 1.5 times the width of the
permitted building envelope of the largest lot existing before consolidation. See
Diagram 131-04Q.
Chapter 13: Zones
(3-2026)
75
Diagram 131-04Q
Lot Consolidation Offset Requirement
NOTE: No offset required if 'B' is less than or equal to 1.5 X 'A'.
125' max
(width of consolidated premises)
CL
Front 50%
of premises
Width of
building envelope
of largest
pre-existing premises
3' Offset
required
'A'
Building
STREET
of premises
CL
'B' exceeds 1.5 X 'A'
Source: amlegal_browserURL: https://codelibrary.amlegal.com/codes/sanfrancisco/latest/sfplanning/Fetched: 6/28/2026