{"id":12096,"date":"2025-03-04T10:06:08","date_gmt":"2025-03-04T09:06:08","guid":{"rendered":"https:\/\/dev.hoinka.com\/?page_id=12096"},"modified":"2026-09-14T14:51:05","modified_gmt":"2026-09-14T12:51:05","slug":"bnk-bng-costs","status":"publish","type":"page","link":"https:\/\/hoinka.com\/en\/building-certification\/bnk-bng\/bnk-bng-costs\/","title":{"rendered":"BNK\/BNG costs"},"content":{"rendered":"<h2>BNK \/ BNG Costs: What Factors Determine the Expenses for Sustainability Certification?<\/h2>\n<p>The costs for BNK (Assessment System for Sustainable Small-Scale Residential Construction) or BNG certification consist essentially of two components: the official fees charged by the certification body (BiRN) and the auditor\u2019s fees. Since BiRN\u2019s certification fees are fixed, the total cost varies primarily depending on the individual amount of the auditor\u2019s fee. <\/p>\n<h3>Key Factors Affecting the BNK\/BNG Auditor&#8217;s Fee<\/h3>\n<p data-path-to-node=\"6\">It is recommended that you discuss the fee with the auditor in advance in a transparent and customized manner. The fee is based on various factors depending on the project: <\/p>\n<ul data-path-to-node=\"7\">\n<li>\n<p data-path-to-node=\"7,0,0\">Size, type, and scope of the construction project (e.g., single-family home vs. larger residential building)<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,1,0\">Complexity of the design and the materials used<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,2,0\">Timing of Involvement (Early-Stage Construction Oversight vs. Retrospective Document Review)<\/p>\n<\/li>\n<\/ul>\n<figure id=\"attachment_16655\" aria-describedby=\"caption-attachment-16655\" style=\"width: 2560px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-16654\" src=\"https:\/\/hoinka.com\/wp-content\/uploads\/Hoinka_Haus-scaled.jpg\" alt=\"The straw-bale house \"Haus Hoinka.\"\" width=\"2560\" height=\"1707\" srcset=\"https:\/\/hoinka.com\/wp-content\/uploads\/Hoinka_Haus-scaled.jpg 2560w, https:\/\/hoinka.com\/wp-content\/uploads\/Hoinka_Haus-300x200.jpg 300w, https:\/\/hoinka.com\/wp-content\/uploads\/Hoinka_Haus-1024x683.jpg 1024w, https:\/\/hoinka.com\/wp-content\/uploads\/Hoinka_Haus-768x512.jpg 768w, https:\/\/hoinka.com\/wp-content\/uploads\/Hoinka_Haus-1536x1024.jpg 1536w, https:\/\/hoinka.com\/wp-content\/uploads\/Hoinka_Haus-2048x1366.jpg 2048w, https:\/\/hoinka.com\/wp-content\/uploads\/Hoinka_Haus-1248x832.jpg 1248w, https:\/\/hoinka.com\/wp-content\/uploads\/Hoinka_Haus-1800x1200.jpg 1800w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption id=\"caption-attachment-16655\" class=\"wp-caption-text\">The Path to a Certified Building: From energy-efficient building systems to sustainable design, every detail is factored into the BNK\/BNG assessment\u2014which is why the costs for the auditor and certification are always determined on a case-by-case basis depending on the project\u2019s size and scope.<\/figcaption><\/figure>\n<h3 data-path-to-node=\"8\"><strong>Why Investing in BNK\/BNG Certification Can Be Worth It<\/strong><\/h3>\n<p data-path-to-node=\"8\">With the BNK or BNG certificate, you lay the foundation for the government\u2019s QNG seal. Once BiRN has verified compliance and issued the quality seals, simply submit them to KfW to secure the attractive funding available through the \u201cClimate-Friendly New Construction\u201d program. <\/p>\n<h3 data-path-to-node=\"8\"><strong>Your Path to Transparent Cost Estimation<\/strong><\/h3>\n<p data-path-to-node=\"8\">Since every construction project is unique, it is not possible to provide a flat-rate final price. We recommend that you speak directly with a qualified auditor to receive a customized quote tailored specifically to your building and your QNG requirements. <\/p>\n<p data-path-to-node=\"8\">\n<p class=\"buttonpopup\" style=\"text-align: center;\">\t<a class=\"paoc-popup-click paoc-popup-cust-6251 paoc-popup-button paoc-popup-btn \" href=\"javascript:void(0);\">Angebot anfordern<\/a>\r\n\n<p style=\"text-align: center;\">Phone <a class=\"\" href=\"tel:\/\/+49 711 62049-340\">+49 711 62049-340<\/a><br \/>\nEmail <a class=\"\" href=\"mailto:info@hoinka.com\">info@hoinka.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>BNK \/ BNG Costs: What Factors Determine the Expenses for Sustainability Certification? The costs for BNK (Assessment System for Sustainable Small-Scale Residential Construction) or BNG certification consist essentially of two components: the official fees charged by the certification body (BiRN) and the auditor\u2019s fees. Since BiRN\u2019s certification fees are fixed, the total cost varies primarily &hellip;<\/p>\n","protected":false},"author":7,"featured_media":12313,"parent":12082,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"sections.php","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-12096","page","type-page","status-publish","has-post-thumbnail","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>BNK\/BNG costs: Guiding Principles Compliance &#8211; HOINKA<\/title>\n<meta name=\"description\" content=\"We answer questions about the costs of BNB certification and support you in successfully completing your certification.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hoinka.com\/en\/building-certification\/bnk-bng\/bnk-bng-costs\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"BNK\/BNG costs: Guiding Principles Compliance &#8211; 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