Carmel's HEA 1001 Review Could Reshape Local Housing Rules
While Fishers backed away from its ADU proposal, the more consequential zoning conversation for Indianapolis-area homeowners right now is happening in Carmel.
Indiana's House Enrolled Act 1001 requires cities across the state to review their Unified Development Ordinances against a set of state-specified housing factors, with the stated goal of increasing housing production state wide. Carmel is now working through that review, and the outcome could touch nearly every part of residential zoning in the city.
What HEA 1001 Requires
The law directs municipalities to hold a public hearing evaluating their zoning code against nine specific factors. For Carmel, that hearing must happen, and a compliance report must reach the state legislature by January 1, 2027. You can read the full bill text and its legislative history on the Indiana General Assembly's House Bill 1001 page.
The nine factors cover a wide range of housing policy. They include allowing duplexes, triplexes, and fourplexes in single-family zones, encouraging accessory dwelling units, permitting adaptive reuse of commercial buildings for housing, increasing floor-area allowances for multifamily development, waiving certain design standards such as setbacks and parking minimums, reviewing impact-fee zones, shortening permitting timelines, exploring property tax abatements for mixed-income housing, and identifying vacant land that could be donated for affordable housing. The law's stated aim, according to city officials who've briefed the council, is to encourage higher-density housing and speed up construction by modernizing and deregulating local development codes.
Carmel's Groundwork So Far
Carmel isn't starting this review from scratch. The city's Unified Development Ordinance, a document running close to 400 pages, hasn't been systematically reviewed since it was approved in 2017. City Council assigned its Land Use and Special Studies Committee to take on a broader review of the UDO back in early 2024, well before HEA 1001 created a state deadline for related changes.
More recently, Carmel commissioned a “missing middle” housing scan from Opticos Design. Opticos presented findings to Carmel's Mayor's Advisory Commission on Housing earlier this year, walking through house-scale multi-unit housing types such as duplexes, fourplexes, and cottage courts, along with ADUs, and how they can add housing options without changing the scale of existing neighborhoods. That scan is meant to give the city a head start on evaluating the state's nine factors rather than starting the analysis cold.
City officials have also flagged concerns during the process. At a special council briefing, members raised questions about unfunded mandates, fee subsidies required under the law, and potential conflicts with other state statutes. Those concerns don't change the deadline Carmel is working against, but they suggest the city isn't simply rubber-stamping every possible change the law allows.
You can follow Carmel's official updates on this process through the city's NewsFlash announcements page.
Where Things Stand Now
As of the most recent public hearing on August 18, 2026, Carmel had not adopted any UDO amendment stemming from this review. The process remains active, with staff continuing to track processing times, gather data on housing prices and income, and prepare the reporting the state requires.
This is a meaningfully different situation from Fishers' withdrawn ADU amendment. Carmel isn't considering a single, narrow proposal that can simply be pulled. It's working through a state-mandated review that touches setbacks, parking, housing types, and permitting timelines across the whole city, with a hard deadline attached.
Why This Matters If You Own Property in Carmel
If you own property in Carmel, or you're planning a project that depends on current setback, parking, or ADU rules, you should track this review closely over the next several months. Any changes adopted through this process could shift what's buildable on a lot that isn't buildable today, and just as easily could leave current rules in place if the city decides existing standards already satisfy the law's factors.
Keep an eye on Carmel's Plan Commission and City Council agendas as this moves toward the January 2027 deadline. If you're planning an addition, ADU, or new construction project on a timeline that could intersect with these changes, it's worth talking to a design team that's already tracking the review before you finalize plans around today's rules. Fabl Design is following Carmel's UDO process as it develops and can help you understand how any adopted changes might affect a specific property or project.
