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House Extension Professionals in Portsmouth, NH

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Portsmouth / 50 mi
Architects & Architectural Designers
House Extensions
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270 Professionals

Featured Reviews for House Extension Professionals in Portsmouth, NH

Lucy Gorham/ Residential Design
House Extension Professionals in Portsmouth, NH
Average rating: 5 out of 5 stars2 March 2017
“Thank you for all your help in my up coming project!!! You are the best! I am putting an addition on a bilevel which has been nearly impossible until the help from this company...”
CWC Design
House Extension Professionals in Portsmouth, NH
Average rating: 5 out of 5 stars1 October 2014
“I have worked with CWC design's Chris Crump on several projects (I'm an interior designer) and he is, by far, the most talented and professional architect that I have ever come across in my industry. I would highly recommend his company to anyone.”
JAZ Design, Inc.
House Extension Professionals in Portsmouth, NH
Average rating: 5 out of 5 stars3 April 2014
“We did a complete gut and remodel of almost our entire home, and Aimee did all of the design work, from conception to execution, including the kitchen and great room, two bathrooms, 3 bedrooms. We had the best experience, from start to finish. She got to know us and had an amazing understanding of our style, and was able to make suggestions and streamline the whole process. We couldn't be happier with how it came out. We get continuous compliments from everyone who sees our house, particularly on the kitchen, and have recommended Aimee and Jaz Design to everyone we talk to.”
Tuscher Design Group
House Extension Professionals in Portsmouth, NH
Average rating: 5 out of 5 stars16 February 2019
“Tuscher Design Group is always a pleasure to work with. Their attention to detail and ability to communicate the clients needs to the professionals they work with is second to none. I highly recommend TDG and look forward to working with them in the future.”
Making Design Studio
House Extension Professionals in Portsmouth, NH
Average rating: 5 out of 5 stars28 March 2024
“Nick and Dani from Making Design Studio deserve all the praise for the incredible transformation they brought to our home. They skillfully altered our bathroom layout to seamlessly incorporate a laundry area, making our daily routine much more convenient. The open concept they created by opening up the kitchen to the dining room has completely elevated our living space allowing for so much natural light! Thank you for making our home so much better!”
Architectural DesignWorks, LLC (ADW)
House Extension Professionals in Portsmouth, NH
Average rating: 5 out of 5 stars15 March 2017
“Gary Canner is a dedicated, creative architect with great client relationships. Not only does Gary have great design sensibilities, he also has a great depth of knowledge of detailing and the appropriateness of material choices. These attributes combine for an architect with a full range of capabilities.”
Reiter Architecture & Design
House Extension Professionals in Portsmouth, NH
Average rating: 5 out of 5 stars2 September 2021
“We used Lauren for a complete remodel including kitchen, multiple bathrooms, playroom, and bedroom. We used her for complete architectural and interior design. She was with us from start to finish of the project and we owe the success to her. Lauren has great design skills which is completely obvious by viewing her portfolio. The equally as helpful (and likely more important) skills that she brings to the table are her attention to detail and her perseverance in dealing with the contractors. She is there at every meeting to crack the proverbial whip and is very responsive (NYC responsive ;) to email/ phone/ text. I have and will continue to recommend her without reservation.”
Cummings Architecture + Interiors
House Extension Professionals in Portsmouth, NH
Average rating: 5 out of 5 stars26 July 2012
“Could not be happier! Mathew and his staff were very helpful during every phase of the project. They took the time to explain to me and my husband what needed to be done and very often gave us helpful ideas. We went into the project with a strong idea of what we wanted. Mat not only helped us bring those ideas to life, he also offered ways to improve upon those ideas in ways that I could never have thought of. Our family could not have been happier with the result and we constantly get compliments from everyone! I would highly recommend Mat to anyone!”
Tee House Design LLC
House Extension Professionals in Portsmouth, NH
Average rating: 5 out of 5 stars12 November 2015
“I have worked on multiple projects with Molly for the last 12 years. Her level of detail and professionalism is bar none. For creative one of a kind designs Tee House is top notch.”
Eric H. Gjerde Architect
House Extension Professionals in Portsmouth, NH
Average rating: 5 out of 5 stars1 March 2013
“I can't say enough about Eric. I have been a top producing Real Estate Broker in Boston and North Shore Communities for nearly a decade now. I have met countless people in the industry and most enter your brain and exit just as fast. From the minute I met Eric I new this would be one guy that I would never forgot. Eric is a true professional, but beyond that, being an architect is something that I feel he was born to do. He has such a fine eye for details and his visions are off the charts. I brought him in for a large renovation last Fall in Winchester, MA. The client I had just sold this house to already had an architect and had some preliminary drawings already prepared. However, she agreed to meet with Eric and after just one visit she was blown away with his ideas and creativity! I would recommend him whether you are building a home, adding to your existing home, or doing a renovation. I personally use him, and would not trust anyone else as you only have 1 chance to get it right!”
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Architect or Architectural Designer FAQs
A house extension is a construction process that involves expanding the footprint of your existing home. This could be extending outwards, either to the side or rear of the house, or upwards by adding another storey. House extensions provide extra living space and can significantly increase the value of your property.

House extensions can be categorised based on direction, structure and function. The main types include rear extensions, side return extensions, wrap-around extensions, and double or single-storey extensions. More specific ones could be kitchen extensions, loft conversions, basement conversions, garage conversions or conservatories. Select the type that best suits your property and meets your space needs, if you are unsure, speaking with a local home extension builder in Portsmouth.

Generally, house extensions are worth the investment. They provide additional living space and can dramatically increase the resale value of your home, often covering the initial investment cost. However, plan carefully and choose a reputable house extension builder to ensure a high-quality build that will add value to your property.

The cost of a house extension can vary significantly based on several factors, such as the size, complexity of the design, quality of materials used, and geographical location. However, as a rough estimate, a single-storey extension can range from £1,000 to £2,000 per square metre, whereas a two-storey extension can start at around £1,500 per square metre.

Planning a house extension involves several stages, including idea generation, design, planning permission, and construction. Consult with a house extension architect to create a design based on your needs and budget. Ensure to check with your local council about planning permissions. Finally, choose a reputable house extension builder to bring your vision to life.
Why Hire Builders on Houzz?
270Local Pros on Houzz Who Serve Portsmouth, NH
3,500+Total Number of Reviews Left by Homeowners
Are you considering a house extension? On Houzz, you can find an extensive selection of Portsmouth house extension professionals near you, eager to turn your vision into a reality. Whether you're planning an extra bedroom, expanding your kitchen or designing a brand-new workspace, these professionals have the skills and expertise to make your project successful. House extension professionals include architects who can draw up detailed plans and builders who will execute them to the finest standards.

Choosing a house extension professional on Houzz ensures peace of mind, knowing that you’re in safe hands. They come highly recommended with a strong track record of creating bespoke, high-quality extensions in Portsmouth in a wide range of styles and budgets. Whether planning a new kitchen extension, adding a new storey, or just wanting more living space, find your house extension solution with us.

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