Environmental law is one of the most complex intersections of federal, state, and local regulation in California real estate. Brokers need working knowledge of the major environmental statutes affecting development, property disclosure, and liability — not expertise, but enough to recognize when an environmental issue is present and to guide clients to appropriate counsel.
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The California Environmental Quality Act (Public Resources Code §21000 et seq.) requires state and local agencies to evaluate the environmental impacts of proposed development projects before approving them. CEQA is California's version of the federal NEPA (National Environmental Policy Act) and is often more stringent.
1. Determine if the project is subject to CEQA Most private development requiring a government discretionary approval (permit, rezoning, subdivision approval) triggers CEQA review. Ministerial approvals (no discretion involved) are generally exempt.
2. Initial Study The lead agency (city or county) performs an Initial Study to identify potential environmental impacts.
3. Categorical Exemptions Certain small or routine projects are categorically exempt from CEQA (e.g., minor alterations to existing structures, infill projects meeting specific criteria). If a categorical exemption applies, no further CEQA review is needed.
4. Negative Declaration or EIR
5. EIR Contents
6. Mitigation and Conditions The agency may approve the project with conditions requiring mitigation measures to reduce identified impacts to a less-than-significant level.
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The National Environmental Policy Act applies to federal agency actions — federal permits, federally funded projects, or projects on federal land. An Environmental Impact Statement (EIS) is the NEPA equivalent of a California EIR. Most purely private California development is subject to CEQA, not NEPA, unless federal nexus exists (e.g., Army Corps of Engineers permit required for wetlands).
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The California Coastal Act (1976) protects California's coastal zone from incompatible development. The California Coastal Commission implements and enforces the Act:
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Section 404 of the Clean Water Act requires a permit from the U.S. Army Corps of Engineers before dredging or filling wetlands and other "waters of the United States." This is a critical constraint on development:
California also requires a Section 401 Water Quality Certification from the Regional Water Quality Control Board as a condition of the federal permit.
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The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) is the federal Superfund law governing cleanup of contaminated properties. CERCLA's liability scheme is notably harsh:
CERCLA liability is:
Phase I ESA: A professional review of historical records, regulatory databases, and site inspection to identify recognized environmental conditions (RECs) — no soil or groundwater sampling. Performed by a licensed environmental professional.
Phase II ESA: Actual soil and groundwater sampling to confirm contamination — triggered when Phase I identifies RECs.
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The Williamson Act (Land Conservation Act of 1965) allows landowners of agricultural or open-space land to voluntarily enter into 10-year rolling contracts with the county. In exchange:
Williamson Act contracts run with the land — a buyer acquires the property subject to the existing contract. This is a material fact that must be disclosed in a sale of Williamson Act-contracted land.
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Both the federal Endangered Species Act (ESA) and California's Natural Community Conservation Planning (NCCP) program affect development:
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CARB regulates air quality in California. Relevant to real estate:
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Quiz Questions:
Q1. A developer wants to build 50 condominiums on land in the California Coastal Zone. The project requires a local planning commission approval. Which of the following is required in addition to local planning approvals?
A) Only a federal EIS because coastal development is federally regulated B) A Coastal Development Permit from the California Coastal Commission (or the local government if it has a certified Local Coastal Program) C) Only CEQA review — the Coastal Commission has no role in private development D) A Corps of Engineers Section 404 permit for all coastal development
Answer: B — All development in the California Coastal Zone requires a Coastal Development Permit. This is in addition to (not instead of) local government approvals and CEQA review.
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Q2. A buyer purchases commercial land and later discovers it is contaminated with industrial chemicals from a prior tenant who operated 20 years ago. The buyer performed a Phase I ESA before purchase, which showed no recognized environmental conditions. Under CERCLA, the buyer:
A) Is automatically liable as the current owner, regardless of the Phase I B) May qualify for the innocent purchaser defense because they conducted All Appropriate Inquiries (Phase I ESA) and had no knowledge of the contamination C) Is not liable because CERCLA only applies to parties who caused the contamination D) Must clean up the site but can bill the prior owner without any CERCLA defense needed
Answer: B — The innocent purchaser defense under CERCLA requires the buyer to have conducted All Appropriate Inquiries (Phase I ESA) before purchase and to have had no knowledge of the contamination. A clean Phase I that missed the contamination (not through buyer negligence) supports the defense.
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Q3. A farmer has a Williamson Act contract on 200 acres of agricultural land. She wants to sell the property to a developer who plans to build homes. What must be understood about the Williamson Act?
A) The contract is personal to the farmer and expires when the property is sold B) The Williamson Act contract runs with the land — the buyer acquires the property subject to the 10-year rolling contract; development would require early cancellation with a significant penalty C) The developer can immediately begin building because the Williamson Act only restricts tax assessment, not use D) The Williamson Act can be cancelled at any time with 90 days' notice to the county
Answer: B — Williamson Act contracts run with the land. A buyer acquires the property subject to the contract. Early cancellation requires a penalty of 12.5% of unencumbered land value, and the cancellation must be approved by the county board of supervisors. This is a material fact requiring disclosure.
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Q4. A CEQA Initial Study for a proposed shopping center identifies significant impacts on wetland habitat. Which CEQA document is most likely required?
A) A Categorical Exemption — wetland impacts are exempt for commercial development B) A Negative Declaration — the project has no significant impacts C) An Environmental Impact Report (EIR) — required when significant environmental impacts are identified D) A NEPA Environmental Impact Statement — because the project is near federal land
Answer: C — When significant environmental impacts are identified, an EIR is required. A Negative Declaration is only appropriate when the Initial Study shows no significant impacts (or impacts that can be mitigated to less-than-significant). An EIR is the most rigorous CEQA document.
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Q5. A developer wants to fill 2 acres of seasonal wetlands to build a warehouse. What federal approval is required?
A) EPA approval under NEPA B) U.S. Army Corps of Engineers Section 404 permit under the Clean Water Act C) Coastal Commission Coastal Development Permit D) No federal permit is needed — wetlands are only regulated by California state law
Answer: B — Section 404 of the Clean Water Act requires a U.S. Army Corps of Engineers permit before dredging or filling wetlands and other waters of the United States. Seasonal wetlands may qualify as regulated waters. This is a federal requirement independent of state permits.