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Seal Beach · Zoning · LM

Seal Beach LM zoning: height, setbacks and lot size

In Seal Beach's LM zone, generally buildings can be up to 35 ft tall, the front setback is 15 ft and the minimum lot size is 10,000 sq ft, with the conditions listed below (Seal Beach code, read October 2026).

Key points

  • Maximum building height: 35 ft (Site less than 10 acres)
  • Minimum front setback: 15 ft
  • Minimum side setback: 15 ft
  • Minimum rear setback: 15 ft
  • Minimum lot size: 10,000 sq ft
  • Maximum floor area ratio (FAR): 5.0

LM (Light Manufacturing) is a zoning district in Seal Beach. Every value below was read from the Seal Beach Municipal Code and links to its section (read October 2026). State laws such as the ADU and SB 9 rules can allow more on a residential lot. General information, not legal advice — read the code text and check with the city before you build.

Development standards in LM

The general rule for a typical lot in this zone. Zoning tables often attach notes, such as rules for corner lots, lots next to a residential zone, or new subdivisions only. Open “code text” under a value to see the table cell or sentence it was read from.

Maximum building height
35 ft
Applies: Site less than 10 acres
§ 11.2.15.015 · code text
Table row “Site less than 10 acres”, column “LM”: 35
Minimum front setback
15 ft
§ 11.2.15.015 · code text
Table row “Front Yard”, column “LM”: 15
Minimum side setback
15 ft
§ 11.2.15.015 · code text
Table row “Interior Lot Line”, column “LM”: 15
Minimum rear setback
15 ft
§ 11.2.15.015 · code text
Table row “Interior Lot Line”, column “LM”: 15
Minimum lot size
10,000 sq ft
§ 11.2.15.015 · code text
Table row “Minimum Lot Size (sq. ft.)”, column “LM”: 10,000
Maximum floor area ratio (FAR)
5.0
§ 11.2.15.015 · code text
Table row “Maximum Floor Area Ratio”, column “LM”: 5.0

When a different number applies

The code sets other values for particular lots, buildings or locations in LM:

  • Maximum building height: 75 ft — Site more than 10 acres § 11.2.15.015

Not on this page

We did not find a general stories, lot coverage, density limit for LM in the zoning tables we read. The code may still set one elsewhere — check the Seal Beach Municipal Code.

Other Seal Beach zoning districts

Who this affects

HomeownersArchitects and designersDevelopersReal estate agents

Frequently asked questions

What is the maximum building height in Seal Beach's LM zone?

35 ft (site less than 10 acres) — Seal Beach Municipal Code § 11.2.15.015.

What is the minimum front setback in Seal Beach's LM zone?

15 ft — Seal Beach Municipal Code § 11.2.15.015.

What is the minimum side setback in Seal Beach's LM zone?

15 ft — Seal Beach Municipal Code § 11.2.15.015.

What is the minimum rear setback in Seal Beach's LM zone?

15 ft — Seal Beach Municipal Code § 11.2.15.015.

What is the minimum lot size in Seal Beach's LM zone?

10,000 sq ft — Seal Beach Municipal Code § 11.2.15.015.

General information, not legal advice.

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