{"id":44854,"date":"2026-01-05T10:25:23","date_gmt":"2026-01-05T10:25:23","guid":{"rendered":"https:\/\/s3da-design.com\/?post_type=portfolio&#038;p=44854"},"modified":"2026-01-05T10:30:11","modified_gmt":"2026-01-05T10:30:11","slug":"structural-design-for-an-adu-over-garage-san-diego-ca","status":"publish","type":"portfolio","link":"https:\/\/s3da-design.com\/portfolio\/structural-design-for-an-adu-over-garage-san-diego-ca\/","title":{"rendered":"Structural Design\u00a0for an ADU over Garage,\u00a0San Diego, CA\u00a0"},"content":{"rendered":"\n<p>This project involves the structural engineering design of a new Accessory Dwelling Unit (ADU) constructed above an existing car garage in San Diego. The scope focuses on ensuring the existing garage structure can safely support the&nbsp;additional&nbsp;vertical and lateral loads associated with the new upper-level residential unit, while meeting current California Building Code and local&nbsp;jurisdiction&nbsp;requirements.&nbsp;<\/p>\n\n\n\n<p>Structural calculations and analysis include comprehensive load evaluations for seismic, wind, dead, and live loads, reflecting San Diego\u2019s seismic design criteria. Our engineering team performed a detailed structural analysis and design of all elements associated with the new ADU, including:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Verification and strengthening (as\u00a0required) of existing foundations and footings\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Analysis of garage slab and walls to confirm load transfer capability\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Design of new columns, beams, and floor framing systems\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Evaluation and design of load-bearing walls and shear walls\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Roof framing and diaphragm design for gravity and lateral load resistance\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Design of hold-downs, connectors, and full load path continuity\u00a0<\/li>\n<\/ul>\n\n\n\n<p>In addition, a structural evaluation of the existing garage framing and foundation was completed to confirm adequacy for the new ADU loads. Where deficiencies were&nbsp;identified, targeted strengthening solutions were designed to ensure safety, performance, and constructability.&nbsp;<\/p>\n\n\n\n<p>This project delivers a code-compliant, efficient, and build-ready structural solution that supports vertical expansion while maximizing the use of existing structures\u2014an ideal approach for urban infill and ADU development in Southern California.&nbsp;<\/p>\n","protected":false},"featured_media":44861,"template":"","categories":[],"portfolio-categories":[906],"class_list":["post-44854","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","portfolio-categories-adus"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.3 (Yoast SEO v26.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Structural Design\u00a0for an ADU over Garage,\u00a0San Diego, CA\u00a0 - S3DA DESIGN Structural and MEP Design<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/s3da-design.com\/portfolio\/structural-design-for-an-adu-over-garage-san-diego-ca\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Structural Design\u00a0for an ADU over Garage,\u00a0San Diego, CA\u00a0\" \/>\n<meta property=\"og:description\" content=\"This project involves the structural engineering design of a new Accessory Dwelling Unit (ADU) constructed above an existing car garage in San Diego. 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