{"id":4387,"date":"2025-09-06T15:37:53","date_gmt":"2025-09-06T12:37:53","guid":{"rendered":"https:\/\/katsourisengineering.com\/when-is-a-structural-adequacy-assessment-required-law-4495-2017\/"},"modified":"2025-09-09T17:07:31","modified_gmt":"2025-09-09T14:07:31","slug":"when-is-a-structural-adequacy-assessment-required-law-4495-2017","status":"publish","type":"post","link":"https:\/\/katsourisengineering.com\/en\/when-is-a-structural-adequacy-assessment-required-law-4495-2017\/","title":{"rendered":"When is a Structural Adequacy Assessment required (Law 4495\/2017)"},"content":{"rendered":"\n<p>The <strong>Structural Adequacy Assessment<\/strong> (SAA) documents that a building\u2019s load-bearing structure remains safe under permanent and seismic loads. Under the <strong>Law 4495\/2017<\/strong> framework for the regularization\/legalization of unauthorized works, an SAA is mandatory in specific cases, while in others a <strong>technical engineer\u2019s report<\/strong> is sufficient. Below we summarize what applies, the common scenarios, and how the process unfolds.<\/p>\n\n<h2 class=\"wp-block-heading\">Legal framework \u2014 quick overview<\/h2>\n\n<p>Law 4495\/2017 and the relevant ministerial decision specify when a construction requires a <strong>Structural Adequacy Assessment<\/strong> and when a technical report is enough. The requirement depends on the type of irregularity, the building\u2019s importance class (<strong>S2\/S3\/S4<\/strong>), any change of use, and the scope\/impact of the interventions.<\/p>\n\n<h2 class=\"wp-block-heading\">Cases where a Structural Adequacy Assessment <em>is required<\/em><\/h2>\n\n<ul class=\"wp-block-list\">\n<li>A structurally independent construction that is entirely unauthorized.<\/li>\n\n\n\n<li>Unauthorized additions\/modifications or <strong>change of use<\/strong> in buildings of importance class S2, S3, or S4.<\/li>\n\n\n\n<li>Situations where the irregularity increases the seismic demand on the structural system or affects critical structural members.<\/li>\n\n\n\n<li>Constructions\/irregularities classified as high priority for further structural control (based on technical documentation).<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">When an SAA is <em>not<\/em> required (a technical report suffices)<\/h2>\n\n<p>For small-scale, \u201clight\u201d interventions and under conditions, a technical adequacy report can be submitted instead of a full SAA. Indicatively:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Enclosing semi-open spaces or a pilotis (open ground floor) under specific perimeter wall conditions.<\/li>\n\n\n\n<li>Small mezzanines\/lofts within set limits and without creating in-place \u201cshort columns\u201d.<\/li>\n\n\n\n<li>Cantilevers with limited projection or a small increase in projection.<\/li>\n\n\n\n<li>Constructing a small room on the roof (up to a percentage of the roof area) or basement works that do not alter the load-bearing structure.<\/li>\n\n\n\n<li>Structurally independent auxiliary spaces of small area.<\/li>\n\n\n\n<li>Adding a roof with verification focused on the roof elements and their connections.<\/li>\n<\/ul>\n\n<p><strong>Note:<\/strong> Whether your case qualifies for exemption is determined by a <a href=\"https:\/\/katsourisengineering.com\/en\/about-us\/\">licensed civil\/structural engineer<\/a> after reviewing documents, drawings, and the actual condition of the building.<\/p>\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"681\" src=\"https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/09\/structural-reinforcement-studies-1024x681.jpg\" alt=\"Structural Strengthening\" class=\"wp-image-4383\" srcset=\"https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/09\/structural-reinforcement-studies-1024x681.jpg 1024w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/09\/structural-reinforcement-studies-300x200.jpg 300w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/09\/structural-reinforcement-studies-768x511.jpg 768w, https:\/\/katsourisengineering.com\/wp-content\/uploads\/2025\/09\/structural-reinforcement-studies.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">Process and deliverables of the Structural Adequacy Assessment<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><strong>Site survey &amp; documentation:<\/strong> data collection, measurements, photographic record, mapping of defects\/interventions.<\/li>\n\n\n\n<li><strong>Modeling &amp; assessment:<\/strong> analysis per <strong>KANEPE<\/strong> (Greek Code for Interventions) \/ <strong>Eurocodes<\/strong> or per the design codes applicable at the time of construction (where permitted).<\/li>\n\n\n\n<li><strong>Reports &amp; drawings:<\/strong> detailed checks, base-shear verification where allowed, structural drawings.<\/li>\n\n\n\n<li><strong>Conclusions:<\/strong> adequacy\/deficiency and, if needed, proposals for <strong>structural strengthening<\/strong> (e.g., RC jackets, FRP, steel solutions).<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Common real-world scenarios<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><strong>Enclosing a semi-open space:<\/strong> often documented with a technical report (if conditions are met).<\/li>\n\n\n\n<li><strong>Small loft\/mezzanine:<\/strong> within limits \u2192 technical report, with checks for local load effects.<\/li>\n\n\n\n<li><strong>Change of use<\/strong> (e.g., shop to assembly area): typically requires an <em>SAA<\/em>.<\/li>\n\n\n\n<li><strong>Adding a roof:<\/strong> verification of roof members &amp; connections, not a full assessment of the entire structure, where permitted.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">When is the SAA uploaded to the system?<\/h2>\n\n<p>Where mandatory, the Structural Adequacy Assessment is submitted at the time of completing the <a href=\"https:\/\/katsourisengineering.com\/en\/electronic-building-identity\/\"><strong>Electronic Building Identity<\/strong><\/a>. If your case meets the exemption requirements, a technical report is submitted instead of an SAA.<\/p>\n\n<h2 class=\"wp-block-heading\">Time &amp; cost &#8211; what they depend on<\/h2>\n\n<p>There is no single price: it depends on the building\u2019s size and complexity, availability of drawings, the number\/type of interventions, and any required instrumental tests. Our goal is to provide an accurate estimate after a brief pre-check.<\/p>\n\n<h2 class=\"wp-block-heading\">What to prepare<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>Building permit, approved structural drawings (if available), and any revisions.<\/li>\n\n\n\n<li>Plans\/sections\/elevations, photos, data on materials\/windows\/systems.<\/li>\n\n\n\n<li>Description of irregularities and probable dates of interventions.<\/li>\n<\/ul>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n<h2 class=\"wp-block-heading\">Why Katsouris Engineering<\/h2>\n\n<p>We specialize in <a href=\"https:\/\/katsourisengineering.com\/en\/structural-assessment-adequacy-study-when-its-required-how-its-done\/\"><strong>Structural Adequacy Assessments<\/strong><\/a>, <a href=\"https:\/\/katsourisengineering.com\/en\/structural-adequacy-studies-structural-reinforcement-studies\/\"><strong>strengthening\/retrofit design<\/strong><\/a>, and end-to-end <a href=\"https:\/\/katsourisengineering.com\/en\/settlement-of-arbitrary-constructions\/\"><strong>regularization<\/strong><\/a> under Law 4495\/2017, through to the <a href=\"https:\/\/katsourisengineering.com\/en\/electronic-building-identity\/\"><strong>Electronic Building Identity<\/strong><\/a>. We provide a clear timeline, robust technical documentation, and support at every step.<\/p>\n\n<p><strong>Need an estimate for a Structural Adequacy Assessment?<\/strong><\/p>\n\n<p>Send us a floor plan\/photos and a short description of the interventions for a quick pre-check.<br\/><\/p>\n\n<p><a href=\"https:\/\/katsourisengineering.com\/en\/offer\/\">Request a quote<\/a><\/p>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions (FAQ)<\/h2>\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-question-1757161217302\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">When is a Structural Adequacy Assessment required under Law 4495\/2017?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>For entirely unauthorized, structurally independent constructions; for unauthorized works\/changes of use in S2\/S3\/S4 buildings; and whenever seismic demand increases materially or critical structural members are affected.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1757161232422\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">Are there cases where an SAA is not required?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Yes. For small, \u201clight\u201d interventions (e.g., specific enclosures, small lofts, limited cantilevers) a technical adequacy report may suffice, provided all conditions are met.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1757161238977\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">When is the SAA uploaded to the information system?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Upon completion of the <a href=\"https:\/\/katsourisengineering.com\/en\/electronic-building-identity\/\"><strong>Electronic Building Identity<\/strong><\/a>, where an SAA is mandatory.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1757161269193\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">Is there a benefit in regularization if an SAA is submitted?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>In applicable cases, a discount on the unified fine may apply, subject to the law and guidance in force.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1757161277388\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">The building predates 1983. What applies?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>For interventions on older structures, the assessment is often carried out on the entire building, depending on the scope\/type of irregularity and the design codes then in force.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1757161286022\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">What information do you need for a quote?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Permit\/drawings (if available), basic dimensions, photos, description of interventions, use, floor level, and area.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The Structural Adequacy Assessment (SAA) documents that a building\u2019s load-bearing structure remains safe under permanent and seismic loads. Under the Law 4495\/2017 framework for the regularization\/legalization of unauthorized works, an SAA is mandatory in specific cases, while in others a technical engineer\u2019s report is sufficient. Below we summarize what applies, the common scenarios, and how [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":4382,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[43],"tags":[],"class_list":["post-4387","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-permits-regulations"],"_links":{"self":[{"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/posts\/4387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/comments?post=4387"}],"version-history":[{"count":0,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/posts\/4387\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/media\/4382"}],"wp:attachment":[{"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/media?parent=4387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/categories?post=4387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/katsourisengineering.com\/en\/wp-json\/wp\/v2\/tags?post=4387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}