City of Columbia, Missouri  
Meeting Minutes  
Planning and Zoning Commission  
Conference Rooms  
1A/B  
Thursday, February 8, 2024  
5:30 PM  
Work Session  
(REVISED)  
Columbia CIty Hall  
701 E. Broadway  
I. CALL TO ORDER  
7 -  
Present:  
Sara Loe, Anthony Stanton, Michael MacMann, Valerie Carroll, Sharon Geuea  
Jones, Peggy Placier and Shannon Wilson  
2 - Zack Dunn and Matt Ford  
Excused:  
II. INTRODUCTIONS  
III. APPROVAL OF AGENDA  
Meeting agenda adopted unanimously  
Approve as submitted  
IV. APPROVAL OF MINUTES  
January 18, 2024 Work Session  
The January 18, 2024 work session minutes were approved unanimously.  
Approve the minutes as presented  
V. NEW BUSINESS  
A. UDC Text Amendment - Accessory Dwelling Units (ADUs)  
Mr. Zenner introduced the topic explaining that what was before the Commission  
was the result of Council’s assignment and was based on correspondence received  
from Adriene Stolwyk. Mr. Zenner explained that the amendment was focused on  
the three points contained in the correspondence submitted to Council and would  
result in revisions to the use-specific standards impacting ADUs found within sec.  
29-3.3(gg) of the UDC. Additionally, the revision would impact the dimensional  
standards table within sec. 29-4.1 specific to single and two-family dwelling  
construction within the R-MF zoning district.  
Mr. Zenner explained the content of the text changes by first discussion the  
reduction in required lot width and area. The amendment proposes to allow an  
ADU on any legal lot meeting that definition as recently revised (reduced lot width  
and area), except in the R-1 district where such a use would still need to be located  
on a lot having a minimum of 5000 sq. ft. of area. However, Mr. Zenner noted that  
an R-1 lot having between 30-ft to 60-ft of lot frontage would be capable of  
accommodating an ADU. He stated that the staff’s rational with this amendment  
was to ensure that unintended increases in density on smaller R-1 lots was made  
less likely. He added that the lot area restriction was not carried forward into the  
R-2 and R-MF districts given these districts already permitted multiple dwelling  
units on a lot.  
Mr. Zenner then explained that the revisions to use-specific standard # 4 was to  
remain unchanged even though the published discussion draft showed several  
revisions. He stated this determination was made after conferring with Ms.  
Thompson and discussing when it would be appropriate to add the proposed  
language relating to the Commission’s ongoing discussions about small and  
medium lot integration into the R-1, R-2, and R-MF districts. There was Commission  
discussion about the proposed revisions and their future timing as well as the  
inclusion of a standard that would address the issue how much floor area (inclusive  
of the principal structure and ADU) on a future small or medium-sized lot.  
Commissioners generally expressed support of the proposed future changes;  
however, wanted to consider the specific wording once the final version of the  
small and medium lot text change was completed.  
Mr. Zenner then explained that use-specific standard # 6 was completely removed  
from the regulations. Deletion of this standard would allow for a second “front”  
door to face the subject property’s principal roadway frontage when the ADU was  
either “part of” or “attached to” the primary residence.  
Finally, Mr. Zenner explained that the dimensional standards of sec. 29-4.1(a),  
Table 4.1-1 were to be revised specifically with respect to single and two-family  
construction within the R-MF district. This amendment would reduce the side yard  
setback for these styles of development to 6-ft instead of the current 10-ft. Mr.  
Zenner explained that this amendment was proposed to address the issue of parity  
between the R-1 and R-2 zoning districts were a 6-ft setback was the standard and  
doing so would permit greater lot coverage as well as flexibility in placing a  
detached ADU on an R-MF property.  
There was general Commission discussion about the proposed amendments and  
Ms. Stolwyk was present to participate within the discussion. Several questions  
were addressed to Ms. Stolwyk with respect to if the proposed changes would  
address what she identified as issues within the current regulations. Ms. Stolwyk  
indicated that the changes would help. She noted that several individuals she  
knew had previously made decisions to create ADUs that were not fully  
“self-sufficient” to ensure that they did not violate the code. The proposed  
changes would allow “true” ADU construction thereby permitting better possible  
outcomes.  
There was discussion regarding the possibility of removing the CUP process from  
the current regulations. Mr. Zenner noted that this could be proposed if desired;  
however, the issue of potential density increases being permitted in the R-1 district  
was a concern. He noted that with each previous Commission CUP approval a  
condition was established that only one of the dwellings on the site could be  
registered as rental unit. The Commissioner’s acknowledged this fact; however,  
believed that such a condition may not be helping to alleviate the present housing  
shortage and that the CUP process was burdensome.  
Mr. Zenner agreed that the CUP process was burdensome; however, expressed  
concern that without some control/limitation in place, an R-1 property with two  
dwellings in rental status would potentially undermine intent of the district as a  
“single-family” zone. He suggested that a new use-specific standard, not unlike  
what was recent done with STRs, could be employed here as well. The standard  
would in essence state that when a property has an ADU and principal residence  
only one could be registered as a rental.  
Commissioners felt that this was a possible solution. There was discussion on if the  
amendment to remove the CUP process should be merged within the current text  
changes being discussed. After lengthy discussion, the Commissioners concluded  
the two amendments should be separated. This would ensure that if removing the  
CUP process became more controversial it could be set aside while the less  
controversial changes could move forward.  
Having worked through the possible options for approaching the amendments  
requested by Council and the additional amendment to remove the CUP criteria,  
Mr. Zenner noted that he would be capable of having the Council amendments  
advertised for the Commission’s March 7 meeting. Commissioners were  
comfortable with that meeting date and directed staff to proceed as discussed.  
VI. OLD BUSINESS  
A. UDC Text Amendment - Small Lots  
Mr. Zenner introduced the topic and explained that his attention on this matter was  
diverted to allow for the preparation of the text change addressing ADUs;  
therefore, he was still working on making the changes to the text presented at the  
January18 work session. He noted that for the February 22 work session he would  
have the revisions relating to the maximum ground floor area for lots between 3000  
to 5000 sq. ft. calculated and a definition for “building envelope” created for the  
Commissioner’s consideration. He then noted that Mr. Kunz was prepared to  
explain the graphic that was distributed at the end of last work session meeting.  
Mr. Kunz provided an explanation of the two rows of lot examples. There were  
several questions asked about the data used to generate the graphic and what the  
“colors” on the graphic were intended to represent.  
Mr. Kunz noted that the data he used for the lower line of examples was from the  
coverage layer of the City’s GIS and represented the mode, median, and mean of  
lots within the R-2 and R-MF districts. The “colors” on this line of examples were  
intended to illustrate how much of a lot, represented by the mode, median, and  
mean, would be covered with a structure (the blue shading) if an average lot  
coverage percentage was applied to each lot. The green shaded area within this  
line of the examples was intended to illustrate how much of the described lots  
could have been covered if a building filled the building envelope and was built to  
its maximum height using current UDC setback requirements.  
Mr. Kunz then explained what the upper row of examples was intended to  
illustrate. This row was showing what would be possible on optimally-sized lots  
that were using the proposed reduced setback for the lot sizes proposed within the  
data tables prepared by he and Mr. Zenner. He explained how the ground floor  
building area on lots sized 3000 to 5000 sq. ft. was calculated by taking approximate  
32% of the overall lot size and that on lots 5000 to 7000 sq. ft. this same ground floor  
area was variable, but increased as the lot size increased. He noted the area shaded  
in red for the small and medium lots was what was within the building envelope,  
but could not be developed given the proposed FAR maximum for that specific lot  
size/type.  
There was general Commission discussion with respect to what Mr. Kunz was  
attempting to illustrate in the graphics. A question was raised if the efforts with  
the current amendment were about trying to replicate existing conditions or create  
new opportunities for different types of lot styles and possible coverages within  
the community. It was stated that the information presented was informed by the  
present built environment. Staff noted that an underlying purpose of the exercise  
was to illustrate that the ground floor coverage maximums and overall building  
area standards based on FAR would work together to produce a built environment  
that was not out of scale with the existing development patterns.  
Mr. Kunz was asked if he’d share the graphic with the Commission electronically.  
Mr. Kunz noted he would do so; however, first wanted to review the data used and  
try to address some aspects of the illustrations to reduce their confusion.  
Commission acknowledged that such a course of action was appropriate and  
thanked him for his presentation.  
VII. NEXT MEETING DATE - February 22, 2024 @ 5:30 pm (tentative)  
VIII. ADJOURNMENT  
Meeting adjourned at 6:58 pm.  
Move to adjourn