[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-663929-105":59,"doc-detail-663929-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","new-hampshire-housing-homeowner-adu-guide-march-2026","New Hampshire Housing - Homeowner ADU Guide - March 2026","","March 2026 homeowner guidance on accessory dwelling units (ADUs) from the New Hampshire Housing and Southern New Hampshire Planning Commission. The guide explains what an ADU is, how terms like in-law apartments and granny flats relate to independent units, and how to decide if an ADU fits long-term plans, family needs, financial stability, flexibility, and aging in place. It also outlines cost drivers by ADU type and typical size ranges, plus payment considerations and where local permitting fees and contingencies typically apply.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/new-hampshire-housing-homeowner-adu-guide-march-2026/663929/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/new-hampshire-housing-homeowner-adu-guide-march-2026/663929.png","ImageObject",300,407,{"name":92,"@type":93},"hdkawk","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-29",true,{"@type":102,"interactionType":103,"userInteractionCount":29},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is an ADU and how is it different from a primary home?","Question",{"text":112,"@type":113},"An ADU is a smaller, independent living unit on the same property as a main home. It includes sleeping, eating, cooking, and sanitation facilities that operate independently of the main home.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How do homeowners decide whether an ADU is the right fit?",{"text":117,"@type":113},"The guide prompts you to consider long-term plans, family connections, financial stability, housing flexibility, and aging in place. It also encourages planning for design, budget, and approval processes so the ADU meets current and future needs.",{"name":119,"@type":110,"acceptedAnswer":120},"What factors influence the cost of building an ADU in New Hampshire?",{"text":121,"@type":113},"Costs vary by ADU size, location, and construction type. The guide notes that typical construction costs exclude special site conditions and major utility upgrades, and that permitting fees, design costs, and contingencies often add 10–20% to the project budget.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},663929,1793234455,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":29,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":129,"read_time":144},3985747859855,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","MARCH 2026  \nA GUIDE FOR NH HOMEOWNERS  \nACCESSORY  \nDWELLING UNITS  \nPrepared by Southern New Hampshire Planning Commission on Behalf of New Hampshire Housing  \nSOUTHERN NEW HAMPSHIRE  \nPLANNING COMMISSION  \nJames Vayo  \nPrincipal Researcher & Writer  \nLiliana Vornehm  \nQualitative Researcher  \nNEW HAMPSHIRE HOUSING  \nSarah Wrightsman  \nManager, Community Engagement and Education  \nGeorge Reagan  \nDirector, Community Engagement  \nHeather McCann  \nManaging Director, Engagement, Policy, and Communications  \nEtienne LaFond  \nDirector, Communications  \nEmily Samatis  \nManager, Digital Content and Marketing  \nTABLE OF CONTENTS  \n\n| Is an ADU Right for Me?\u003Cbr>Assess whether an ADU might suit your housing needs. | 6 |\n| --- | --- |\n| ADU Regulations\u003Cbr>Learn the legal definition of an ADU and how to check your local requirements. | 10 |\n| ADU Resources\u003Cbr>This step-by-step guidance can help you plan and build an ADU. | 12 |\n| ADU Success Stories\u003Cbr>Learn from other homeowners’ experiences with ADUs. | 22 |\n\nAppendices  \nUse the QR Code to access the appendices.  \n[nhhousing.org](nhhousing.org | 3)[ |](nhhousing.org | 3)[ 3](nhhousing.org | 3)  \nNew Hampshire Housing | Homeowner ADU Guide  \nWHAT IS AN ADU?  \nAn Accessory Dwelling Unit (ADU) is a smaller home that is located on the same property as a main home. An ADU includes sleeping, eating, cooking, and sanitation facilities that are independent of the main home. ADUscan be added to an existing home or built ina separate building in the yard. ADUs can serve family members, renters, or future needs.  \n4  \nQUICK START  \nHOW TO USE THIS GUIDE  \nConsidering an Accessory Dwelling Unit (ADU) for your property? This guide walks you through the process.  \nSEE IF AN ADU FITS YOUR LIFE  \nTurn to Is an ADU Right for You? for practical questions about cost, design, and use. Whether you’re housing an aging parent, creating rental income, or planning ahead, this section helps you match your goals to an ADU type and budget.  \nLEARN THE GROUND RULES  \nEvery New Hampshire community permits some form of ADU, but the rules vary by town. The ADU Regulations section explains what state law allows and what towns may regulate, including size limits, setbacks, and design details.  \nTAKE THE NEXT STEP  \nThe ADU Resources section connects you with professionals and planning tools. A step-by-step outline helps you move from ideas to action.  \nGET INSPIRED  \nHear from New Hampshire homeowners who turned garages, basements, and backyards into beautiful, functional ADUs, and see how they worked through challenges along the way.  \n[nhhousing.org](nhhousing.org | 5)[ |](nhhousing.org | 5)[ 5](nhhousing.org | 5)  \nNew Hampshire Housing | Homeowner ADU Guide  \nIS AN ADU FOR ME?  \nWHAT IS AN ADU?  \nTHE MANY NAMES OF ADUS  \nWhether you want more independence, to help a family member live nearby, or to make better use of your property, an accessory dwelling unit (ADU) might be the answer.  \nADUs are also called in-law apartments, backyard cottages, granny flats, and other terms. Regardless of the name, an ADU is an independent living unit on the same property as a primary home.  \nCommon ADU Terms  \n• In-law Suites  \n• Mother-in-law Suites  \n• Granny Flats  \n• Secondary Suites  \n• Carriage Houses  \n• Garage Apartments  \n• Basement Apartments  \n• Coach Houses  \n• Accessory Apartments  \n6  \nDECIDE IF AN ADU IS THE RIGHT FIT  \nBuilding an Accessory Dwelling Unit (ADU) is exciting—and a major investment. It’s important to consider how an ADU might fit into your life, property, and long-term plans. Then, think through your motivations, budget, design options, and approval processes so your ADU meets your needs now and in the future.  \nCONSIDER THE FOLLOWING:  \nLong-Term Plans  \nStart with purpose. The clearer your purpose, the more tailored your design, financing, and approvals can be. Write down your primary and secondary goals for an ADU. Ask what you need most from your property over the next five, 10, or 20 years.  \nFa","cbCail25z48pxLjJ","https://ap.wps.com/l/cbCail25z48pxLjJ","pdf",2122706,36,"English","# Is an ADU Right for Me?\n## What is an ADU?\n## The many names of ADUs\n## Decide if an ADU is the right fit\n## How much does building an ADU cost?\n## How to pay","[{\"question\":\"What is an ADU and how is it different from a primary home?\",\"answer\":\"An ADU is a smaller, independent living unit on the same property as a main home. It includes sleeping, eating, cooking, and sanitation facilities that operate independently of the main home.\"},{\"question\":\"How do homeowners decide whether an ADU is the right fit?\",\"answer\":\"The guide prompts you to consider long-term plans, family connections, financial stability, housing flexibility, and aging in place. It also encourages planning for design, budget, and approval processes so the ADU meets current and future needs.\"},{\"question\":\"What factors influence the cost of building an ADU in New Hampshire?\",\"answer\":\"Costs vary by ADU size, location, and construction type. The guide notes that typical construction costs exclude special site conditions and major utility upgrades, and that permitting fees, design costs, and contingencies often add 10–20% to the project budget.\"}]","New Hampshire Housing - Homeowner ADU Guide - March 2026 | PDF",91]