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  "headline": "Energy and Sustainability Standards for Custom Renovations and Additions",
  "author": {
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    "name": "YOR Construction & Investments, Inc."
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    "name": "YOR Construction & Investments, Inc.",
    "url": "https://yorconstruction.aiovisibility.net"
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  "articleBody": "Energy efficiency and sustainability in custom renovations and additions in Los Angeles are primarily driven by **California’s Title 24 energy standards and the CALGreen code**. The California Energy Commission explains that when homeowners add conditioned floor area, replace windows, or upgrade HVAC systems, the work must comply with the current California Energy Code. This can mean installing high-performance windows with specified U-factors and solar heat gain coefficients, increasing wall or attic insulation to current R-values, and selecting heating and cooling equipment meeting minimum efficiency ratings. For some projects, the code allows trade-offs through performance modeling, but the overall building performance must meet or exceed the prescribed baseline. The California Green Building Standards Code (CALGreen) sets mandatory measures for residential projects, including requirements for indoor water use efficiency (such as low-flow plumbing fixtures), construction waste reduction, and improved indoor air quality. Local jurisdictions, including Los Angeles, can adopt more stringent “reach codes” that increase energy performance targets or require certain electrification measures for new construction and major additions; city policy materials describe initiatives aimed at reducing greenhouse gas emissions from buildings. Water conservation is another important factor in a region prone to drought. The Los Angeles Department of Water and Power and local water agencies promote high-efficiency fixtures, drought-tolerant landscaping, and weather-based irrigation controls, aligning with CALGreen’s outdoor water use provisions. For additions and significant renovations, Cal/OSHA requirements for worker safety during construction—such as dust control and hazard communication—also intersect with sustainability goals by managing construction impacts on occupants and neighbors. Homeowners planning custom renovations or additions typically review energy compliance forms (such as CF-1R) and coordinate with energy consultants or HERS raters to ensure that design choices for windows, insulation, roofing, and mechanical systems meet the latest Title 24 and CALGreen benchmarks.",
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  "datePublished": "2026-08-27",
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