Home Additions

Home addition design and construction expands the square footage of your home, creating stunning beauty and value. Addition contractor projects include master bedroom additions, kitchen bump out additions, bathroom additions, sunroom additions, porch additions, attic additions, 2nd story additions, pop up additions, and more.

Hammer Design Build Remodel will develop and coordinate the architecture and design planning to convert your existing home into a stunning space for your whole family. Your happiness, guaranteed!

What are the benefits of a home addition?

The benefits of a home addition not only include receiving a high end renovation to meet your aesthetic and practical needs, but you’re also adding value to your home that offers a great return on investment.  Washington DC and the surrounding counties are a strong, central hub for home appreciation, so any addition to square footage can be beneficial.  Plus, you get to make the space exactly how you want it based off of how it will be used and your aesthetic preferences. 

What does a home addition cost in Washington DC?

Home additions come in a few basic types to address homeowners' needs for living space, cost, and style.  The following are different types of additions in Washington DC priced according to older homes with aging plumbing, electrical systems, settlement, etc issues. on the higher end and projects in newer homes to be on the lower end of the indicated figures.

Bump Out/One Story Addition (type of room involving no plumbing):  $100k-$200k

Multi Story Addition:  $200k-$350k

Additional Story/Level:  $150k-$300k

What is the advantage of hiring a design build firm in DC?

The most obvious advantage of hiring a design build firm is dealing with one company for the duration of your projects from start to finish. Things tend to go more smoothly when there are less parties involved and when you work with a design build firm in DC, you don’t have to work with outside designers or project managers. With all construction parties being on the same team, it brings total accountability to the firm.

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Frequently Asked Questions


Instagram Gallery


Here are some of our favorite bathroom remodels!🛁❤️

We would love to add another one to our list! If you’re interested in getting your home remodeled in any way, shape, or form, shoot us a dm or request a consultation on our website!
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#favorite #bathroomdesign #bathroomremodel #dreambathroom #dcliving #dcremodel #dcrenovation #design #designbuild #hammer #renovation #dmvhomes #dresmhome #homegoals #explorepage #explorepage✨ #bathconstruction #bath #construction #shower
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Before and after this DC remodel 🏚➡️🏠 The transformation is insane!

Want to transform your home like the kitchen shown above? Send us a DM or request a consultation on our website today 😊
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#hometransformation #beforeafter #explorepage #kitchengoals #kitchendesign #kitchenremodel #wholehomerenovation #dreamhome #dmvhomes #dcremodeling #dcliving #designbuild #designerdeinteriores #hammer #dreamkitchen #washingtondc #construction #remodel
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Wow! Look at this hidden laundry room we designed and built for this DC rowhome 👀

By working with the space underneath the staircase, we were able to save the homeowners some square footage while also creating a new laundry room they absolutely love! 😍

If you like this laundry room design, leave us a comment below 👇🏼

Ready to renovate? Send us a DM or check out the link in our bio to request a consultation!
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#hiddenlaundryroom #laundryroom #dcrenovation #dcrowhomes #dcremodel #design #designbuild #laundrydesign #hammer #dcliving #dmvhomes #dreamhome #homegoals #explorepage #homeideas #interiorstyling #designideas #laundrybasket
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Are you interested in a job where you can influence and be immediately involved in a wide range of residential design and renovation projects? Do you know and love the process of residential construction, but desire to work more directly with Homeowners? Do you want to be a part of a structured process and team where you play a key role in turning an in-house design team’s plans into actual built projects?

If you are passionate about construction and working with a diverse team to create built projects that make you proud, Hammer might be the right fit for you.

Hammer is a fast growing residential design and build company, serving the Washington DC Metro region with high end renovations such as additions, whole home renovations, including kitchens and baths. We love people who love what they do and love doing it successfully with a team. We believe that through technology and process improvement, we can design, sell, and build some of the most beautiful and pragmatic renovations in our region. We don’t believe in just achieving the industry norm of our peers and competitors, we strive for ways to improve our people, systems, and end products.

The Project Manager is critical to our business. You will have a direct involvement and impact on the success of our individual projects and the company as a whole. So if you’re highly motivated and love to make an impact, read on to learn more about this opportunity!

Click this link for more information: https://hammercontractors.com/residential-remodeling-production-manager/
The Project Manager is critical to our business. You will have direct involvement and impact on the success of our individual projects and the company as a whole. So if you’re highly motivated and love to make an impact, read on to learn more about this opportunity!
#designbuilders #washingtondc #constructionjobs #washingtondcjobs #projectmanager #loveyourjob #dcliving #designbuild #construction #dmvhomes #dcemployment #dcjobs #MDjobs #hammer
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We are searching for a Residential Production Director to join our growing team! Do you know and love the process of residential construction, but desire to work more directly with Homeowners? Do you want to be a part of a structured process and team where you play a key role in turning an in-house design team’s plans into actual built projects? If you are passionate about construction and working with a diverse team to create built projects that make you proud, Hammer might be the right fit for you.

Hammer is a fast-growing residential design-build company, serving the Washington DC Metro region with high-end renovations such as additions, kitchens, bathrooms, and whole homes.

The Production Director s critical to our business. You will have direct involvement and impact on the success of our individual projects and the company as a whole. So if you’re highly motivated and love to make an impact, read on to learn more about this opportunity!

Click this link for more information: https://hammercontractors.com/residential-remodeling-production-director/

#designbuilders #washingtondc #constructionjobs #washingtondcjobs #productiondirector #loveyourjob #DC #construction #designbuild #hammered
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From 3D renderings to reality, this kitchen remodel looks amazing 🤩 No matter what, Hammer will help bring your vision to life.

In need of a kitchen renovation? Click the link in our bio to connect with us!
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#kitchendesign #kitchenremodel #kitchens_of_instagram #dreamhome #dreamkitchen #kitchengoals #explorepage #design #designbuild #hammer #dcliving #dcremodel #dmvhomes #consultation #construction #architecture #designers
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We absolutely LOVE this remodel! 😍 Comment below which aspect of this design you love the most! ❤️👇🏼

Want a design that you’ll absolutely love? Request a
consultation to speak with us today 😊
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#design #kitchendesign #kitchengoals #dreamkitchen
#dckitchen #dcliving #dmvliving #dmvhomes #hammer
#construction #homegoals #dreamhome #loveit
#bestdesign #dcdesign #customcabinetry #dcremodel #homeremodel
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Look at this amazing remodel in Washington DC built by Hammer! 🏠🔨

Request a consultation today so Hammer can help you transform your home! (See the link in our bio)
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#kitchenremodel #kitchengoals #dreamkitchen #dckitchen #kitchendesign #designbuild #dcremodeling #dmvliving #dcliving #dmvhomes #design #construction
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