---
type: "Bill"
title: "AN ACT TO AMEND TITLE 16 OF THE DELAWARE CODE RELATING TO COUNTY BUILDING CODES."
description: "This Act requires new commercial buildings with a foundation footprint of 50,000 square feet or greater to meet certain requirements to ensure that their roof is able to support solar energy infrastructure."
jurisdiction: "us/states/de"
legislature: "Delaware General Assembly"
session: "152"
identifier: "HB 11"
citation: "Delaware HB 11 (152)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Bryan Townsend", "David L. Wilson", "David P. Sokola", "Debra Heffernan", "Edward S. Osienski", "Eric Morrison", "John \"Jack\" Walsh", "Madinah Wilson-Anton", "Nicole Poore", "Paul S. Baumbach", "Peter C. Schwartzkopf", "Russell Huxtable", "Sean Matthews", "Stell Parker Selby"]
version_count: 2
action_count: 9
vote_count: 2
first_action: "2023-05-02"
last_action: "2023-08-03"
source: "openstates"
source_identifier: "ocd-bill/88e68e61-f786-4473-9041-aa4e24a0edcd"
source_url: "https://legis.delaware.gov/BillDetail?LegislationId=130288"
source_hash: "85e8c7f08edd9faf99390969608f1feb41f2245e2dc9803719ffc67898e1097b"
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-de"]
---

# Delaware HB 11 (152) — AN ACT TO AMEND TITLE 16 OF THE DELAWARE CODE RELATING TO COUNTY BUILDING CODES.

This Act requires new commercial buildings with a foundation footprint of 50,000 square feet or greater to meet certain requirements to ensure that their roof is able to support solar energy infrastructure.

## Version chain

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

1. **Bill Text** (committee substitute) — [source](https://legis.delaware.gov/json/BillDetail/GenerateHtmlDocument?legislationId=130288&legislationTypeId=1&docTypeId=2&legislationName=HB11)
2. **HA 1 to HB 11** (committee substitute) — [source](http://legis.delaware.gov/json/BillDetail/GeneratePdfDocument?legislationId=140386&legislationTypeId=5&docTypeId=2)

## Votes

- SM — **16–4** (pass) · upper
- SM — **24–14** (pass) · lower

## Sponsors

- Bryan Townsend — primary (person)
- David L. Wilson — primary (person)
- David P. Sokola — primary (person)
- Debra Heffernan — primary (person)
- Edward S. Osienski — primary (person)
- Eric Morrison — primary (person)
- John "Jack" Walsh — primary (person)
- Madinah Wilson-Anton — primary (person)
- Nicole Poore — primary (person)
- Paul S. Baumbach — primary (person)
- Peter C. Schwartzkopf — primary (person)
- Russell Huxtable — primary (person)
- Sean Matthews — primary (person)
- Stell Parker Selby — primary (person)

## Timeline

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

- **2023-05-02** Introduced and Assigned to Natural Resources & Energy Committee in House `introduction, referral-committee`
- **2023-05-12** Amendment HA 1 to HB 11 - Introduced and Placed With Bill `amendment-introduction`
- **2023-06-07** Reported Out of Committee (Natural Resources & Energy) in House with 5 Favorable, 5 On Its Merits `committee-passage, committee-passage-favorable`
- **2023-06-13** Amendment HA 1 to HB 11 - Passed In House by Voice Vote `amendment-passage`
- **2023-06-13** Passed By House. Votes: 24 YES 14 NO 3 ABSENT `passage`
- **2023-06-13** Assigned to Environment, Energy & Transportation Committee in Senate `introduction, referral-committee`
- **2023-06-21** Reported Out of Committee (Environment, Energy & Transportation) in Senate with 3 Favorable, 2 On Its Merits `committee-passage, committee-passage-favorable`
- **2023-06-27** Passed By Senate. Votes: 16 YES 4 NO 1 ABSENT `passage`
- **2023-08-03** Signed by Governor `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/88e68e61-f786-4473-9041-aa4e24a0edcd`. Confidence: reported (aggregated from official Delaware legislature records).