Most homes weren't designed for how families live today. Kitchens are too small for gathering. Bedrooms double as offices. Basements sit unfinished while square footage is desperately needed upstairs. A well-designed addition solves those problems, but only if it's planned correctly.
A well-designed addition is one of the most complex projects a home can undergo because you're not building on a blank canvas—you’re carefully grafting new architecture onto an existing structure. Foundations must align, rooflines must intersect cleanly, and structural loads must be recalculated so the old house and the new structure work as one system. Mechanical, electrical, and plumbing systems must be expanded without compromising the home that’s already standing.
At the same time, the design must feel effortless. When it’s done right, the proportions feel natural, the materials transition seamlessly, and the addition transforms how the home lives without ever feeling like an afterthought.
In this post, I'll explain some background about home additions, and I'll introduce some ideas for how you can take advantage of having more square footage to improve your existing house.
The appeal of an addition is that it creates new space beyond what's provided by your existing layout. However, not all home additions add space in the same way. For most projects, we employ either a bump-out or a second-story addition.
Many of our favorite kitchen remodels only required extending the house 3–6 feet. That small amount of space can be the difference between a cramped kitchen and one that supports a full island, proper circulation, and seating.
A bump-out addition creates additional space by extending a portion of the exterior wall outward. This means that you can get more breathing room by extending the wall just a few feet without requiring significant foundation work or building an additional story.
In some cases, a bump-out serves as a full room addition, allowing you to install a bedroom, office, or bathroom. In other homes, the bump-out extends the existing space enough to rework the main floor's layout, such as to install an upgraded open-concept kitchen.
Many homeowners consider a second-story addition when they love their neighborhood but have outgrown their house. Instead of moving, they build upward. The tradeoff is complexity: second-story additions often involve temporary roof removal and structural reinforcement.
This type of addition creates a second floor above all or part of your existing floor plan. Adding a second story can nearly double a home's livable space without expanding its footprint. For many homeowners, this is appealing as a second-story addition can provide extra bedrooms or bathrooms without affecting yard space.
Depending on the extent of the second story, there's an option to build two bedrooms (such as for a growing family) or develop a stunning primary bedroom with a spa-like bathroom. Adding this type of primary suite can provide more space and privacy for homeowners.
Although it may seem like adding a second floor can be done with minimal change to your current main floor, keep in mind that you need a way to get to the second floor, so you'll have to create space for stairs. Given the structural elements involved, these remodels must be carefully planned to comply with all local building codes.
Finishing a basement is often the most cost-effective way to gain square footage because the structure already exists. Instead of expanding the home’s footprint, you're transforming unused space into living space.
A popular focus of basement remodels is adding a guest room or a full in-law suite with its own bathroom. This lets you host family or friends more easily and gives them added comfort and privacy while staying at your home.
Instead of revamping your main floor, you can build a new living room or family room in your basement. We often couple these gathering spaces with a small kitchen or wet bar so that it can be a self-contained space for enjoying time together as a family.
Dedicated home offices are a room addition idea that has seen a surge in popularity since the pandemic. Even if you don't work from home full-time, having a space specifically for work can boost productivity. We often outfit these spaces with extra soundproofing so that you can focus and take calls without distractions.
Outdoor living spaces like decks and patios maximize enjoyment during pleasant weather, so building out an outdoor space can be a clear win. That said, we know that the weather here in Iowa can intrude on many outdoor plans, which is why we love sunrooms as an addition.
A sunroom is a versatile, light-filled space that brings the outdoors in without exposure to the elements. In a sunroom addition, the space is connected to your HVAC system for climate control, while sliding glass doors and large glass windows provide an indoor-outdoor connection. As a result, sunrooms allow enjoyment of Iowa's seasons and natural light throughout the year, even when it's cold, windy, or wet outside.
Transforming an existing front porch into a sunroom can add usable square footage and increase curb appeal. You can also build a sunroom on a back or side yard adjacent to your kitchen or living room.
Most homeowners love the feel of a spacious kitchen, and a kitchen bump-out can create extra space in the kitchen without requiring a full addition.
We often take advantage of the extra space to open up the main floor since open-concept kitchen and dining areas enhance flow and are ideal for family gatherings. Whether it's a breakfast nook or space for a full dining room table (or both!), this kitchen upgrade can be great for everyday use and when entertaining.
Converting garage space can work in certain situations, but many homeowners prefer building over the garage to add a studio, office, or guest suite without sacrificing parking.
With a bump-out addition, you can build a mudroom at the front or back door, or even your garage door. A mudroom creates a dedicated space for coats, shoes, and everyday essentials, improving home organization.
When space allows, you can unify the mudroom with a functional laundry space. On its own, a well-designed laundry room can streamline daily routines and elevate the overall feel of the home. Even further, mudroom and laundry combinations keep main areas of the home clean by providing an entryway for containing dirty coats and boots, while wet or messy clothes can go straight into the washer.
Popular house additions in Des Moines include extra bedrooms, bathrooms, kitchen expansions, home offices, and garage expansions. But these are just some of the options available, and the beauty of a home addition is that it can be tailored to your preferences.
At Compelling Homes, we specialize in custom remodels and additions. Planning a home addition requires a detailed assessment of your current space and needs, and we firmly believe that a real assessment requires listening, attention, and collaboration.
The first step in any addition isn’t construction—it's design. Understanding how the new space connects to the existing house determines whether the project feels seamless or awkward. At Compelling Homes, we start every addition with a structured design process so the scope, budget, and details are clear before construction begins.
We've been serving the greater Des Moines area for over 16 years, and we take pride in helping our friends and neighbors create their dream homes. If you're considering a remodel or addition, contact us to schedule a consultation to discuss what we can build together.