{"id":1044,"date":"2016-09-18T13:03:14","date_gmt":"2016-09-18T18:03:14","guid":{"rendered":"http:\/\/homeadditionplus.com\/dev\/?page_id=1044"},"modified":"2019-06-10T05:41:08","modified_gmt":"2019-06-10T10:41:08","slug":"how-much-does-a-room-addition-cost","status":"publish","type":"page","link":"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-much-does-a-room-addition-cost\/","title":{"rendered":"20&#215;20 Room Addition Cost &#8211; Key Factors in Room Addition Costs"},"content":{"rendered":"<h4><span style=\"color: #008000;\"><strong>There are a Number of Factors that Contribute to the Cost of a Room Addition<\/strong><\/span><\/h4>\n<p>By Mark J. Donovan<br \/>\n<script type=\"text\/javascript\"><!-- google_ad_client = \"pub-3988490936633155\"; \/* Homepage_Home_Improvement_468x15_ATF, created 8\/13\/10 *\/ google_ad_slot = \"6539705898\"; google_ad_width = 468; google_ad_height = 15; \/\/-->\n<\/script><br \/>\n<script type=\"text\/javascript\" src=\"http:\/\/pagead2.googlesyndication.com\/pagead\/show_ads.js\">\n<\/script><\/p>\n<div class=\"KonaBody\">\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 50%;\" width=\"50%\">\n<p align=\"center\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<!-- New_300x250_051317 --><br \/>\n<ins class=\"adsbygoogle\" style=\"display: inline-block; width: 300px; height: 250px;\" data-ad-client=\"ca-pub-3988490936633155\" data-ad-slot=\"4202793463\"><\/ins><br \/>\n<script>\n(adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<\/td>\n<td style=\"width: 3%;\" width=\"3%\"><\/td>\n<td style=\"text-align: left; width: 47%;\" width=\"47%\"><span style=\"font-size: 14pt;\">So you\u2019re thinking about expanding your home\u2019s living space by building a room addition. A smart idea, as it costs a lot more to sell and buy a larger home than build a room addition onto your existing house. <\/span><\/p>\n<p><span style=\"font-size: 14pt;\">However, you most likely will want to know how much a room addition costs before breaking ground on it. <\/span><\/p>\n<p><span style=\"font-size: 14pt;\">The answer to this question, however, is not simple as there are a number of factors that ultimately determine the cost of a room addition.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td style=\"text-align: left; width: 50%;\" width=\"50%\"><span style=\"font-size: 14pt;\"><strong>Room Addition Size = Room Addition Cost<\/strong><\/span><\/p>\n<p><span style=\"font-size: 14pt;\">The number one factor that dictates the cost of a room addition is the size of it. For example do you want to build a 20&#215;20 room addition or a smaller 12&#215;12 room addition.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">The reason why size matters so much is that room additions, like new construction homes, are effectively priced on a square foot basis.<\/span><\/p>\n<\/td>\n<td style=\"text-align: left; width: 1.21212%;\" width=\"3%\"><\/td>\n<td style=\"width: 49%;\" width=\"47%\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-205 size-full\" src=\"http:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2016\/08\/home_building.jpg\" alt=\"Building a room addition\" width=\"259\" height=\"194\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: left;\"><strong><span style=\"font-size: 14pt;\">20&#215;20 Room Addition Cost Example<\/span><\/strong><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">So if in your local area the cost is $200 per square foot for building a room addition, you can easily calculate the cost of your project by multiplying this number by the number of square feet in your proposed addition. So for example, if you were building a 20 x 20 square foot room addition, you\u2019d multiply $200 x 400 square feet, which works out to $80,000.<\/span><br \/>\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<!-- 468x60_below_Author_Name --><br \/>\n<ins class=\"adsbygoogle\" style=\"display: inline-block; width: 468px; height: 60px;\" data-ad-client=\"ca-pub-3988490936633155\" data-ad-slot=\"5936342260\"><\/ins><br \/>\n<script>\n(adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td style=\"text-align: left;\" width=\"50%\"><span style=\"font-size: 14pt;\"><strong>Room Addition Building Materials and Features<\/strong><\/span><\/p>\n<p><span style=\"font-size: 14pt;\">The other major factor that plays a major role in the cost per square foot of building a room addition are the materials and unique features included in the room addition. For example, if you have plans to build a room addition that includes either a kitchen or bathroom, and use high end products in it, you can expect the cost per square foot for the room addition to be high.<\/span><\/td>\n<td width=\"3%\"><\/td>\n<td width=\"47%\"><a href=\"http:\/\/homeadditionplus.com\/dev\/home_addition_bid_sheets\/\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-381 aligncenter\" src=\"http:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2016\/09\/Home_Addition_Bid_Sheets_Ad_250x250.jpg\" alt=\"Home Addition Bid Sheets\" width=\"250\" height=\"250\" srcset=\"https:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2016\/09\/Home_Addition_Bid_Sheets_Ad_250x250.jpg 250w, https:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2016\/09\/Home_Addition_Bid_Sheets_Ad_250x250-150x150.jpg 150w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">So if you want to keep your room addition costs moderate, then skip the bathroom and kitchen features, which require a great deal of plumbing, cabinetry and appliances.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">Similarly, if you want to keep room addition costs low, don\u2019t use high end building materials, e.g. hardwood finished trim. Likewise, if you are considering including a fireplace in your room addition, expect to pay more for your room addition, and particularly so if you choose to build a stone fireplace. A stone fireplace costs about 3 times as much as a brick fireplace.<\/span><\/p>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td style=\"text-align: left;\" width=\"50%\"><span style=\"font-size: 14pt;\"><strong>Local Market Building Economic Conditions<\/strong><\/span><\/p>\n<p><span style=\"font-size: 14pt;\">If you live in a community or region that is experience high growth rates in building construction, then expect to pay more per square foot for your room addition project. With high demand for carpenters and contractors, and limited numbers of them, they can and do charge a premium for their work. So if you are in the middle of a hot building market, be prepared to expect higher room addition building costs.<\/span><\/td>\n<td width=\"3%\"><\/td>\n<td width=\"47%\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1045 aligncenter\" src=\"http:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2016\/09\/garage_addition-1.jpg\" alt=\"How much does a room addition cost, such as in a garage addition.\" width=\"259\" height=\"194\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">Alternatively, to save on room addition costs, you may want to consider holding off on building your room addition until the building market in your local area cools down.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><strong>How the Room Addition Will Tie into Your Home<\/strong><\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">How the room addition will attach to your home is another major factor in estimating room addition costs. A room addition that requires significant demolition and melding into the existing home can add dramatically to the costs, as not only do you have to pay for the additional room addition square feet, but all of the other costs of tying the addition into the main home.<\/span><\/p>\n<table border=\"0\" width=\"100%\" cellspacing=\"2\" cellpadding=\"2\">\n<tbody>\n<tr>\n<td width=\"50%\"><span style=\"font-size: 14pt;\"><strong>Other Factors that Effect Room Addition Costs<\/strong><\/span><\/p>\n<p><span style=\"font-size: 14pt;\">Often a room addition will require a larger or new supplement heating and air conditioning system. Similarly, plumbing for heating is often required. In addition, exterior electric meters often have to be moved on the home prior to building a room addition.<\/span><\/td>\n<td width=\"50%\">\n<div align=\"center\">\n<div style=\"background: url('http:\/\/homeadditionplus.com\/images\/Home_Addition_form_Ad_Small_rev1.jpg') no-repeat top; margin-left: 10px; margin-bottom: 0px; margin-top: 0px; height: 190px; width: 275px;\">\n<form action=\"http:\/\/homeadditionplus.com\/UHI-info\/Additions.htm#form\" method=\"get\"><input style=\"float: left; width: 80px; margin: 110px -255px 50px 165px;\" name=\"PC\" size=\"20\" type=\"text\" \/><br \/>\n<input style=\"float: right; background: url('http:\/\/homeadditionplus.com\/images\/homeadditionplus-btn-next.gif'); height: 34px; width: 91px; border: 0px solid #000000; ; margin-left: 0; margin-right: 25px; margin-top: 130px; margin-bottom: 0px;\" type=\"submit\" value=\"\" \/><\/form>\n<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">The particular building lot can also be a major factor in impacting home addition costs. For example, the type of building lot could necessitate the installation of deep and large concrete footings and tall foundation walls.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">To conclude, your best bet in determining the cost of your room addition would be to talk with several local real estate experts to find out what the current cost per square foot is for new home construction. However, to be safe, add a 25% to 50% premium on top of this cost per square foot figure, as room addition costs are typically higher due to the fact that they need to be melded into the exiting home.<\/span><\/p>\n<\/div>\n<hr \/>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\"><span style=\"color: #008000;\"><b>For more help on building a room addition<\/b><\/span>, see HomeAdditionPlus.com&#8217;s<b> <a href=\"http:\/\/homeadditionplus.com\/dev\/home_addition_bid_sheets\/\"><span style=\"color: #0000ff;\">Home Addition Bid Sheets<\/span><\/a><span lang=\"EN\">. <\/span><\/b>Our\u00a0<b><a href=\"http:\/\/homeadditionplus.com\/dev\/home_addition_bid_sheets\/\"><span style=\"color: #0000ff;\">Home Addition Bid Sheets<\/span><\/a> <\/b>provide you with the knowledge and information on how to plan a home building project, and what to look for when hiring contractors. They also include detailed cost breakdown tables and spreadsheets for estimating your own new home construction building costs.<\/span><\/p>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td style=\"text-align: left;\" width=\"50%\"><a href=\"http:\/\/homeadditionplus.com\/dev\/home_addition_bid_sheets\/room-addition-bid-sheet\/\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-11872 aligncenter\" src=\"http:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2017\/04\/Room-Addition-Bid-Sheet-218x300.jpg\" alt=\"Room Addition Bid Sheet\" width=\"218\" height=\"300\" srcset=\"https:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2017\/04\/Room-Addition-Bid-Sheet-218x300.jpg 218w, https:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2017\/04\/Room-Addition-Bid-Sheet-768x1056.jpg 768w, https:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2017\/04\/Room-Addition-Bid-Sheet-745x1024.jpg 745w, https:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2017\/04\/Room-Addition-Bid-Sheet.jpg 1200w\" sizes=\"auto, (max-width: 218px) 100vw, 218px\" \/><\/a><\/td>\n<td style=\"text-align: left;\" width=\"1%\"><\/td>\n<td width=\"49%\">\n<p align=\"center\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<!-- New_300x250_051317 --><br \/>\n<ins class=\"adsbygoogle\" style=\"display: inline-block; width: 300px; height: 250px;\" data-ad-client=\"ca-pub-3988490936633155\" data-ad-slot=\"4202793463\"><\/ins><br \/>\n<script>\n(adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 style=\"text-align: left;\" align=\"left\"><span style=\"color: #008000; font-size: large;\"><b>Related\u00a0Information<\/b><\/span><\/h3>\n<ul>\n<li style=\"text-align: left;\"><span style=\"font-size: large; color: #0000ff;\"><b><a style=\"color: #0000ff;\" href=\"http:\/\/homeadditionplus.com\/dev\/home_articles\/estimating-home-addition-costs\/\">Learn How to Cost out a Home Addition<\/a><\/b><\/span><\/li>\n<li style=\"text-align: left;\"><span style=\"font-size: large; color: #0000ff;\"><b><a style=\"color: #0000ff;\" href=\"http:\/\/homeadditionplus.com\/dev\/home_articles\/budgeting-home-remodeling-project\/\">Budgeting a Home Addition Project<\/a><\/b><\/span><\/li>\n<li style=\"text-align: left;\"><span style=\"color: #0000ff; font-size: large;\"><b><a style=\"color: #0000ff;\" href=\"http:\/\/homeadditionplus.com\/dev\/home_articles\/design-your-own-home-addition\/\">Home Addition Design Ideas<\/a><\/b><\/span><\/li>\n<li><span style=\"color: #0000ff; font-size: large;\"><b><a style=\"color: #0000ff;\" href=\"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-to-build-home-addition-affordably\/\">How to Build a Home Addition Affordably<\/a><\/b><\/span><\/li>\n<\/ul>\n<hr \/>\n<h3 style=\"text-align: left;\"><span style=\"color: #008000; font-size: 14pt;\">Free Room Addition Price Quotes with No Obligation!<\/span><\/h3>\n<p style=\"text-align: left;\"><span style=\"font-size: 14pt;\">Fill out our 3-5 minute quick and easy form, and receive a free price quote on a room addition from one of our prescreened and licensed room addition contractors. This process is free and there is no obligation to continue once you receive your room addition price estimate.<\/span><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.inforequests.com\/pub5x\/\/?allowRefNet=N&amp;layout=H&amp;PublisherSubID=Room_Addition_Bottom&amp;url=http:\/\/g.gaesy.com\/cgi\/r?;n=203;c=622397;s=4383;x=7936;f=201006161516140;u=j;z=TIMESTAMP;&amp;servicescheckbox=ROOM_ADDITIONS&amp;submit=submit\" width=\"660\" height=\"560\" frameborder=\"0\" scrolling=\"no\" data-mce-fragment=\"1\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>There are a Number of Factors that Contribute to the Cost of a Room Addition By Mark J. Donovan So you\u2019re thinking about expanding your home\u2019s living space by building a room addition. A smart idea, as it costs a lot more to sell and buy a larger home than build a room addition onto your existing house. However, you most likely will want to know how much a room addition costs before breaking ground on it. The answer to this question, however, is not simple as there are a&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":315,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1044","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>20x20 Room Addition Cost - Key Factors in Room Addition Costs - HomeAdditionPlus.com<\/title>\n<meta name=\"description\" content=\"Factors that Contribute to the Cost of a Room Addition\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-much-does-a-room-addition-cost\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"20x20 Room Addition Cost - Key Factors in Room Addition Costs - HomeAdditionPlus.com\" \/>\n<meta property=\"og:description\" content=\"Factors that Contribute to the Cost of a Room Addition\" \/>\n<meta property=\"og:url\" content=\"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-much-does-a-room-addition-cost\/\" \/>\n<meta property=\"og:site_name\" content=\"HomeAdditionPlus.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DIYHomeAdditionPlus\/\" \/>\n<meta property=\"article:modified_time\" content=\"2019-06-10T10:41:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2016\/08\/home_building.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"259\" \/>\n\t<meta property=\"og:image:height\" content=\"194\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@homeaddition\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-much-does-a-room-addition-cost\/\",\"url\":\"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-much-does-a-room-addition-cost\/\",\"name\":\"20x20 Room Addition Cost - Key Factors in Room Addition Costs - HomeAdditionPlus.com\",\"isPartOf\":{\"@id\":\"https:\/\/homeadditionplus.com\/dev\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-much-does-a-room-addition-cost\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-much-does-a-room-addition-cost\/#primaryimage\"},\"thumbnailUrl\":\"http:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2016\/08\/home_building.jpg\",\"datePublished\":\"2016-09-18T18:03:14+00:00\",\"dateModified\":\"2019-06-10T10:41:08+00:00\",\"description\":\"Factors that Contribute to the Cost of a Room Addition\",\"breadcrumb\":{\"@id\":\"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-much-does-a-room-addition-cost\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-much-does-a-room-addition-cost\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-much-does-a-room-addition-cost\/#primaryimage\",\"url\":\"https:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2016\/08\/home_building.jpg\",\"contentUrl\":\"https:\/\/homeadditionplus.com\/dev\/wp-content\/uploads\/2016\/08\/home_building.jpg\",\"width\":259,\"height\":194,\"caption\":\"Building a house addition\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/homeadditionplus.com\/dev\/home_articles\/how-much-does-a-room-addition-cost\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/homeadditionplus.com\/dev\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"DIY Home Improvement Ideas on Custom Home Building and Building Home Additions\",\"item\":\"https:\/\/homeadditionplus.com\/dev\/home_articles\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"20&#215;20 Room Addition Cost &#8211; 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