---
type: "Bill"
title: "Development restrictions on slopes."
description: "Prohibits a unit from preventing development exclusively on the basis of slope, if the predevelopment slope of the site is less than 25%, unless the site is within a watershed area of a reservoir that is a source of a municipality's drinking water."
jurisdiction: "us/states/in"
legislature: "Indiana General Assembly"
session: "2024"
identifier: "HB 1108"
citation: "Indiana HB 1108 (2024)"
classification: ["bill"]
subjects: ["AGENCIES; Department of Natural Resources (DNR)", "HEALTH; Drinking Water", "LOCAL GOVERNMENT; Generally", "NATURAL RESOURCES; Rivers", "Streams", "and Waterways"]
status: "enacted"
primary_sponsors: ["Blake Doriot", "Dave Hall", "Eric Koch"]
version_count: 4
action_count: 21
vote_count: 2
first_action: "2024-01-08"
last_action: "2024-03-11"
source: "openstates"
source_identifier: "ocd-bill/b3b8a11b-dc7d-40ac-8dd7-fd918c743066"
source_url: "https://api.iga.in.gov/2024/bills/hb1108"
source_hash: "0cccbce90ab83fe41fe221893b540900fb1cb616c94e0bb3659bddced039e2c7"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-in"]
---

# Indiana HB 1108 (2024) — Development restrictions on slopes.

Prohibits a unit from preventing development exclusively on the basis of slope, if the predevelopment slope of the site is less than 25%, unless the site is within a watershed area of a reservoir that is a source of a municipality's drinking water.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Enrolled House Bill (H)** (committee substitute) — [source](https://iga.in.gov/pdf-documents/123/2024/house/bills/HB1108/HB1108.04.ENRS.pdf)
2. **House Bill (H)** (committee substitute) — [source](https://iga.in.gov/pdf-documents/123/2024/house/bills/HB1108/HB1108.03.COMS.pdf)
3. **House Bill (S)** (committee substitute) — [source](https://iga.in.gov/pdf-documents/123/2024/house/bills/HB1108/HB1108.02.COMH.pdf)
4. **Introduced House Bill (H)** (committee substitute) — [source](https://iga.in.gov/pdf-documents/123/2024/house/bills/HB1108/HB1108.01.INTR.pdf)

## Votes

- HB 1108 - Koch - 3rd Reading — **39–10** (pass) · upper
- HB 1108 - Hall D - 3rd Reading — **69–27** (pass) · lower

## Sponsors

- Blake Doriot — primary (person)
- Dave Hall — primary (person)
- Eric Koch — primary (person)
- Chris May — coauthor (person)
- Gary Byrne — cosponsor (person)
- James Tomes — cosponsor (person)
- Jean Leising — cosponsor (person)
- Randy Maxwell — cosponsor (person)
- Robert Heaton — coauthor (person)
- Shane Lindauer — coauthor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2024-01-08** Coauthored by Representatives May, Heaton, Lindauer
- **2024-01-08** First reading: referred to Committee on Natural Resources `reading-1, referral-committee`
- **2024-01-08** Authored by Representative Hall
- **2024-01-18** Committee report: amend do pass, adopted `committee-passage`
- **2024-01-22** Second reading: ordered engrossed `reading-2`
- **2024-01-23** Senate sponsor: Senator Koch
- **2024-01-24** Referred to the Senate `referral`
- **2024-01-23** Third reading: passed; Roll Call 31: yeas 69, nays 27 `passage, reading-3, reading-3`
- **2024-02-05** First reading: referred to Committee on Natural Resources `reading-1, referral-committee`
- **2024-02-19** Committee report: do pass, adopted `committee-passage`
- **2024-02-19** Senator Doriot added as second sponsor
- **2024-02-22** Senators Maxwell, Byrne, Leising added as cosponsors
- **2024-02-22** Second reading: ordered engrossed `reading-2`
- **2024-02-26** Third reading: passed; Roll Call 190: yeas 39, nays 10 `passage, reading-3, reading-3`
- **2024-02-26** Senator Tomes added as cosponsor
- **2024-02-27** Returned to the House without amendments `receipt`
- **2024-03-04** Signed by the Speaker `passage`
- **2024-03-05** Signed by the President Pro Tempore `passage`
- **2024-03-11** Signed by the Governor `executive-signature`
- **2024-03-08** Signed by the President of the Senate `passage`
- **2024-03-11** Public Law 52 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/b3b8a11b-dc7d-40ac-8dd7-fd918c743066`. Confidence: reported (aggregated from official Indiana legislature records).