Gilbert Arizona City Council Study Session - October 29, 2025: Discussion on Middle Housing Text Amendment
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Gilbert Arizona City Council Study Session - October 29, 2025: Discussion on Middle Housing Text Amendment
This study session focused exclusively on a presentation and discussion from Development Services regarding a text amendment (Z 2511) related to middle housing legislation, House Bill 2721 (from the 2024 legislative session). The proposed amendment aims to adopt regulations before the January 1, 2026 deadline to maintain local control over middle housing development, which includes duplexes, triplexes, four-plexes, and townhomes.
Discussion Items
- Presentation by Ashley (Development Services): Ashley provided an overview of the state requirements: municipalities must allow middle housing on lots zoned for single-family within one mile of the central business district (CBD) and on new developments of 10 or more contiguous acres (20% of units). She explained prohibited restrictions (e.g., less than two stories, floor area ratio below 50%, stricter setbacks than single-family, owner occupancy requirements, commercial building code, fire sprinklers, and more than one parking space per unit).
- Proposed Draft Details:
- Definitions for middle housing (duplex, triplex, four-plex, townhomes) are being added but kept separate from existing definitions to avoid conflicts.
- Middle housing will be allowed in all single-family zoning districts.
- Eligibility: within one mile of the CBD (including the CBD itself, as proposed) and on single-family zoned lots entirely within the buffer area; for developments of 10+ acres, the 20% allowance applies to both net area and lots (clarified from the statute).
- Development standards: compliance with base zoning, construction on legal lots, no phasing, townhomes limited to no more than four units, and no accessory dwelling units (ADUs) added to townhomes to prevent quadrupling density.
- Application process must be no more onerous than for single-family dwellings.
- Parking: one space per unit, as allowed by state law (in contrast to typical multifamily requirements).
- Councilmember Questions:
- Councilmember Chuck Bon Giovanni asked whether metal housing (for sober living homes) could be restricted. Ashley responded that this had not been explored but could be taken back for consideration.
- No other questions were raised.
Key Outcomes
- The text amendment (Z 2511) will proceed to the Planning Commission on November 5, 2025 for a hearing and recommendation, and then return to the City Council for action on November 18, 2025, in order to meet the state deadline of January 1, 2026.
- Council directed staff to look into the feasibility of restricting metal housing for sober living homes as part of the amendment.
- The meeting adjourned at 5:43 p.m., with the regular council meeting to reconvene at 6:00 p.m.
Meeting Transcript
I think we're ready to get started. Call the study session to order. Roll call. Mayor Scott Anderson. Here. Vice Mayor Bobby Buckley. Here. Councilmember Chuck Bon Giovanni. I am here. Councilmember Kenny Bucklin. Here. Councilmember Monty Lyons. I am here. And Councilmember Jim Torgeson. Here. A quorum is present. Thank you. Our one single item tonight is presentation and discussion from development services on text amendment related to middle housing legislation. Ashley. Thank you, Mayor. I have been before you on this item last year, so I will do just a brief run through of it and then answer any questions that you might have. This is Z 2511. It's a text amendment, as you mentioned, related to middle housing. Just by way of background, this is related to House Bill 2724 2721 that came out of the 2024 legislative session. And it required that municipalities by January 1st of 2026 adopt an ordinance that allows for the development of middle housing, which is defined within the within the bill as duplexes, triplexes, four-plexes, and townhomes. There's a couple of different criteria that are required for towns to comply with in allowing these middle housing units. So we have to allow it on lots zoned for single family within one mile of our central business district. Council may recall that I was before you last year around around summertime to adopt the heritage district as our central business district to conform with this provision. We also have to allow it on any new development that's 10 contiguous acres or more, and that would be 20% of that new development. That's throughout the town, not confined to that one mile buffer around the central business district. If the municipality does not adopt these regulations prior to January 1st of 2026, middle housing would be allowed by right on all single family lots without limitation. So it's really important that we get these rules in place in order to be able to ensure that we've got a little bit of control about where they locate. So you'll notice in our draft that we bring before council that there's a number of things that we specify that we're not going to do as we apply these middle housing standards. So those include restricting middle housing to less than two stories. We can't restrict the floor area ratio to less than 50%. We can't have regulations or permit requirements that are more restrictive than those for single-family dwellings within the same zoning district. So we can't have greater setback requirements, you know, shorter uh height, um, those types of things. We can't require an owner to occupy any of the structures on the lot. Uh we can't require them to comply with the commercial building code or to contain a fire sprinkler. And we can't require more than one parking space per unit. Uh so as I go through the draft, you'll see that our draft is reflective of these things that we are prohibited from regulating. Um the first section of our text amendment is to update our terms. Uh we are defining middle housing specifically, and then um including duplex, floor area ratio, four-plex townhomes, and triplexes under the umbrella of middle housing. So these definitions that you see relate only to the development of middle housing. Um the reason that we did this is because there are some um maybe unique uh ways to define these that we didn't want to apply to our broader zoning districts. Uh for example, a duplex is defined as attached, detached, or semi-detached. Uh, typically when you think of a duplex, that's one structure that's got two units in it. So we didn't want to replace our current definition of duplex with these. So these definitions will only relate to middle housing. Uh we're also updating our land use table to show that middle housing will be allowed in all of our single family zoning districts.
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