Building an ADU? Great decision! You will absolutely love your new (and incredibly versatile) living space.
Accessory Dwelling Units have been known since World War II under different names. You may have heard the term “accessory apartment” or “guest house.” Some were called Granny Flats or Mother-in-law Units to reflect their value as affordable housing for elderly parents.
Whether you aim to accommodate family members or generate rental income, Accessory Dwelling Units are one of the most remarkable solutions. These are the most flexible spaces we can think of. They expand your living space and give you more usable room — in your backyard, on the same residential lot you’ve owned over the years.
There are two major ADU types – a junior accessory dwelling unit and a standard secondary housing unit. Both are complimentary to the principal residence. However, a junior ADU is typically under 500 square feet and is converted from existing living space within the existing structure. For example, you may convert a part of your attached garage into a second unit. Junior ADU does not require a separate entrance, and your resident could use the bathroom facilities of the main house.
Larger standard ADU comes in different sizes. ADUs under 500 square feet are exempt from Impact fees. ADUs under 750 square feet benefit from some fee waivers. Its maximum size in California is 1200 square feet unless you are converting a huge (existing) barn into an ADU. Standard ADU will need its own bathroom and own kitchen. Local jurisdictions may have other requirements, from specific parameters for kitchen appliances, a full refrigerator to energy efficiency. The planning division will enlighten you when you apply for the building permit.
You must plan your space optimally to make the most of your ADU. This is especially true when it comes to kitchens. Owing to their functionality, the kitchen can easily be called the hub of your new living space. So, invest the time to ensure it offers all required functionality — and is aesthetically appealing — all while adhering to the space limitations.
This article is the ultimate guide to ADU kitchens, so you can plan the heart of your ADU just the right way. Without further ado, let’s dive in!
When it comes to ADU kitchens, you have various types to choose from. Your final selection depends on how you aim to utilize the space. Are you a part-time chef moving into the ADU? Do you see yourself hosting parties for the family? If you’re team Rental Income, will you rent your ADU to a single student or a small family? Consider your plans, and then decide which kitchens will best suit your Accessory Dwelling Unit.
Full Kitchen
A full kitchen is the way to go if you want a complete culinary experience in your ADU kitchen. This type is similar to traditional kitchens you can find in homes. There will be ample countertop space, with sections dedicated to food prep and serving. The appliances will be comprehensive to cater to all needs. Additionally, there will be plenty of storage space.
Efficiency Kitchen
On the other hand, an efficiency kitchen is designed with one core principle in mind: space efficiency. While the amenities offered may not be as elaborate as a full kitchen, this type does cover all basic necessities in a more condensed way. The cooktop may be smaller in efficiency kitchens, and the countertop space may be limited. This is the option if you’re looking for a simple kitchen solution offering basic meal prep options.
We’ve covered the two basic categories of ADU kitchens. But before making your decision, you have to consider a number of factors. For example, your intended use for the space. This, in turn, largely depends on the future occupants, which may be one of the following:
Medium-term renters include, for example, students who are renting your ADU for as long as their program lasts or a traveling nurse who decides to work near your area for a few months. For such medium-term renters, an efficiency kitchen will suffice, especially considering they are mostly solo residents. Whether the student prefers eating out — or the nurse enjoys home-cooked meals occasionally — they will have all the amenities they need while consuming little space in their ADU.
Long-term tenants include entire families, such as those with 4-6 members looking for a two-bedroom ADU. Such tenants enjoy having meals with their loved ones, so they would appreciate extra room for dining and dedicated countertop spaces. Of course, a full range of appliances would be necessary for cooking meals regularly.
Short-term rent is not allowed for ADUs. Sorry, AirBnB.
If your family will be occupying the ADU, the same rules apply. If busy individuals will live in the space, efficiency kitchens are the way to go. Moving in with your whole family? A full kitchen is the answer.
In any new home, a good kitchen makes for a welcoming space. Before making a final decision, look at various floor plans and consider important features for you.
There are a handful of features all types of ADU kitchens agree on.
These compact kitchen tools will help you prepare delicious meals without cluttering your limited countertops. From multi-purpose gadgets to space-saving designs, our selection caters to various cooking needs in small kitchens. Let’s explore these clever appliances that prove size isn’t everything when it comes to creating a fully functional cooking area.
We’re sharing our top picks (and their reasoning) below — you can choose the ones that suit your ADU kitchen best.
Choosing the best-fit appliances ensures you can maximize your limited kitchen space without compromising functionality. While choosing appliances, make sure they are small — and essential for a kitchen.
#1 Compact dishwasher
Even in a small kitchen, comfort comes first. No one likes to spend hours washing dishes, so a dishwasher indeed makes your ADU more attractive to tenants. Plus, it can minimize cleaning time when space is already limited.
We find the GE Convertible Portable Dishwasher to be an excellent space-saving solution for tiny kitchens. This versatile appliance can be used as a freestanding unit or installed under the counter, offering flexibility for different kitchen layouts.
With its compact design, it measures just 24 inches wide, making it suitable for small spaces. Despite its size, it can accommodate up to 12 place settings, providing ample capacity for daily use.
The dishwasher features multiple wash cycles, including normal, heavy, and light options. It also includes a sanitize cycle, which eliminates 99% of bacteria, ensuring dishes are thoroughly cleaned.
We appreciate the convertible nature of this appliance. It can be easily moved when needed, thanks to its smooth-rolling casters. When not in use, it can be stored away to free up valuable kitchen space.
The GE Convertible Portable Dishwasher comes with a top, doubling as additional counter space in tight kitchens. This feature adds functionality to the appliance, making it even more practical for small living spaces.
You can also opt for a countertop dishwasher, if you value storage more than counter space. This Novete portable compact countertop Dishwasher with Built-in Water Tank & Inlet Hose, 5 Washing Programs, Baby Care, Air-Dry Function and LED Light is perfect for ADU kitchens.
#2 Under-the-counter fridge
Such fridges seamlessly fit under your kitchen countertop, so they won’t take up as much room as a bulky fridge.
The Magic Chef Mini Refrigerator is a compact cooling solution perfect for tiny kitchens. With its sleek design and small footprint, it fits easily into tight spaces without sacrificing functionality.
This mini fridge offers 2.4 cubic feet of storage, providing ample room for essential items. Its adjustable thermostat allows for precise temperature control, keeping food and beverages at ideal temperatures.
We appreciate the reversible door, which enhances flexibility in placement. The fridge includes a freezer compartment for ice and frozen goods, adding versatility to its compact size.
The interior features removable glass shelves for easy cleaning and organization. A built-in can dispenser in the door maximizes space efficiency, while the vegetable crisper helps keep produce fresh.
Energy-efficient operation makes this mini fridge an economical choice for small living spaces. Its quiet performance ensures it won’t disrupt the peace in studio apartments or dorm rooms.
Available in various colors, the Magic Chef Mini Refrigerator can complement different kitchen aesthetics. Its affordable price point makes it an attractive option for those on a budget.
#3 Two-range induction cooktop
Whether you’re living in the ADU or renting, cooking is a must. And with an induction cooktop, you can ensure little room is occupied.
Searching for a compact and efficient cooking solution can be overwhelming, but we found the Empava Electric Induction Cooktop to be an intriguing option. Designed with a smooth vitro ceramic glass surface, this cooktop not only looks modern but also promises easy cleanup, catering to both casual cooks and culinary enthusiasts.
The 12-inch dual-burner setup provides versatility in cooking, equipped with nine power levels for anything from simmering to frying. Safety features like the hot surface indicator and a pan size sensor add peace of mind, making it a suitable choice for families.
While the electric stove benefits from solid design and robust features, it requires specific magnetic cookware to operate effectively.
For anyone considering a new cooktop, this induction model offers a blend of modern design and functionality. Many users appreciate its sleek appearance and ease of use, often noting that it heats quickly and efficiently. The setup process is manageable, though enlisting a professional for installation can provide peace of mind.
#4 Hood
A hood helps with odor and smoke control and improves air quality. It can also help regulate the temperature when you’re cooking in the compact ADU kitchen.
The Broan-NuTone Glacier 24-inch Under-Cabinet Range Hood will make a noticeable difference in your ADU kitchen. This unit not only effectively ventilates cooking odors, but it also adds a sleek touch to the overall aesthetic with its stainless steel finish.
Once it is up, you will appreciate the versatility it offers. The two-speed fan quickly cleared smoke during our cooking sessions, and the built-in lights provided excellent illumination. While not silent, the noise level remained manageable, especially for the performance it delivers.
Using this range hood significantly improves the air quality in the kitchen. The effective Captur system swiftly removes up to 97.4% of smoke and odors, making a noticeable difference while cooking. The 300 CFM blower performance allows for quick ventilation, even during heavy cooking sessions. Typical CalGreen requirements call for the minimum of 100 CFM.
There is a trade-off with noise levels; the 5.0 Sones rating can be a bit loud on higher settings.
Overall, the combination of efficient grease filters and strong ventilation provides a cleaner cooking environment. It’s clear that this appliance is designed with air quality in mind, helping to keep the kitchen fresh and free from lingering odors.
#5 Compact microwave oven
Microwaves are great for people on the go, so if you’re renting to busy tenants, adding a compact version is a must.
Looking for a dependable microwave that fits well in smaller spaces? The BLACK+DECKER 0.7 Cu. Ft. Microwave has proven to be a solid addition to ADU kitchen. This model packs a 700-watt punch, allowing us to quickly reheat meals and snacks with ease. Its compact size makes it ideal for ADU kitchens where counter space is limited.
The user-friendly controls include pre-programmed settings for popular items like popcorn and pizza, which we found convenient. The LED display is clear, making it easy to monitor cooking times. The push-button door and child safety lock are thoughtful features for families. We did notice that while it heats efficiently, it may struggle with larger dishes due to its size
We found it to be a reliable addition for anyone with limited kitchen space. It performs well for heating food and is user-friendly, thanks to the push-button door and straightforward controls.
The compact size makes it suitable for small areas, like offices or dorms. We appreciate the child safety lock feature, which adds peace of mind for families. While it may not be the best fit for heavy cooking, it certainly excels at what it’s designed for: convenient heating.
For its price point, it offers great value, making it a worthy consideration for those seeking a practical microwave solution. Overall, it meets our needs effectively without any fuss.
#6 Toaster oven
A toaster oven is small in size but can still work well for baking and toasting. It can also be utilized for roasting. The plus point? It replaces its full-sized counterpart.
The Breville Compact Smart Oven is a versatile appliance that packs a punch in small kitchens. It offers multiple cooking functions in a space-saving design, making it ideal for tight quarters.
This smart oven can toast, bake, roast, and even air fry, eliminating the need for separate appliances. Its compact size allows it to fit comfortably on most countertops without sacrificing functionality. Truth retold, it is welcome in any kitchen. Even my mother-in-law has one, in fact had one for years. Obviously, in addition to a regular oven. She is a baking master.
We appreciate the intuitive controls and preset cooking functions that take the guesswork out of meal preparation. The smart element IQ system ensures even heat distribution for consistent results.
The oven’s interior is spacious enough to accommodate a 12-inch pizza or four slices of toast. Its non-stick cavity coating makes cleaning a breeze, which is crucial in small kitchens where every minute counts.
Energy efficiency is another notable feature of this Breville model. It preheats quickly and uses less power than a full-sized oven, potentially reducing electricity bills.
While it may have a higher price point than some alternatives, we find the Breville Compact Smart Oven‘s quality and versatility justify the investment for those with limited kitchen space.
#7 Instant Pot
The Instant Pot Duo Mini is a compact powerhouse for small kitchens. At just 3 quarts, it’s perfect for cooking meals for 1-2 people without taking up much counter space.
This versatile appliance combines seven functions in one: pressure cooker, slow cooker, rice cooker, steamer, sauté pan, yogurt maker, and food warmer. It allows us to prepare a wide variety of dishes quickly and easily.
The Duo Mini features 11 built-in smart programs for common recipes like soups, beans, and poultry. These preset cooking times and temperatures simplify meal preparation.
Safety is a priority with this appliance. It has over 10 safety mechanisms, including a safety lid lock and overheat protection. This gives us peace of mind while cooking.
Cleaning is straightforward thanks to the stainless steel inner pot, which is dishwasher safe. The pot’s 3-ply bottom ensures even heat distribution for consistent cooking results.
Despite its small size, the Instant Pot Duo Mini doesn’t compromise on functionality. It’s an excellent choice for those with limited kitchen space who want to enjoy the benefits of multi-functional cooking.
Living in a small space doesn’t mean sacrificing kitchen functionality. With the right appliances, even the tiniest kitchen can become an efficient cooking haven.
While natural light is essential in every nook and cranny of an ADU, it is especially important for the kitchen. This is because ADU kitchens are compact, and natural light can visually open them up.
When light illuminates the space, it appears brighter. This often creates an illusion of more space. To make the most of this property of natural light, use light/neutral paint colors in the kitchen.
Allowing natural light to enter during the daytime can help with visibility, making it easier to see and cook. On top of that, it conserves energy and saves on utility bills. Because it ties the space with Mother Nature, allowing sunlight can also hold health benefits for ADU residents!
For an ADU kitchen, you can either go for a window by the sink, allowing for direct natural light and giving a great outdoor view. However, it can limit cabinet space by taking up a portion of the available wall. Plus, it can compromise privacy.
On the other hand, a skylight (similar to a window on the ceiling) contributes to even natural light throughout the kitchen. It doesn’t take up any wall space. In contrast, skylights give limited outdoor views and may be expensive to install.
Adding artificial lighting is important while setting up your ADU to fill the gap during dark hours. In a typical kitchen, this could be different forms of layered lighting. But in your small ADU kitchen, under cabinet lighting and a fixture for general illumination will suffice.
This is because under-
cabinet fixtures act as task lighting, illuminating the countertops for meal prep. Simultaneously, they work well for general illumination, especially considering the small size of the interior. Toss in another hanging fixture, and you’ll be good to go!
Ensuring optimal storage is a must in your ADU kitchen, so be sure to strategically plan space use. Think out of the box and pay attention to the ceiling height — that’s what you will use for storage. In that regard, shelves and cabinets can help utilize vertical space. Wall-mounted racks are also an excellent option for hanging pots and pans.
Multi-functional furniture provides double-duty, such as dining tables with hidden storage compartments. Additionally, consider deep drawers instead of regular ones. Corner cabinets also provide extra storage — use rotating mechanisms for easy access.
Consider installing a kitchen island in your space for additional benefits. For example, you get extra countertop space for meal prep and storage in the island’s drawers. It acts as a subtle room divider if your area has an open-plan layout. Plus, well-designed kitchens almost always have islands as the focal point.
However, it’s important to note that your island will take up valuable floor space in the already small kitchen. This can hurt traffic flow, leading to limited mobility. Plus, installing a kitchen island can incur extra costs.
If you’re leaning towards an island, consider an island on wheels. You can roll it in when you need extra countertop or storage space — and remove it when space constraints kick in.
Integrating a laundry area in your ADU kitchen is another possibility often seen in European apartments. Combining the kitchen and laundry allows space efficiency, so you don’t need to allocate a separate area for both. It also means you can efficiently multitask (cooking and washing the clothes simultaneously). A hidden benefit is reduced — and optimized — plumbing costs. Not to look down upon with current construction costs.
However, remember that having a laundry machine in your kitchen can reduce space in the already small kitchen. The laundry odors can also mingle with kitchen smells to create an unpleasant ambiance, and the machine’s noise is an added con.
Designing an ADU kitchen is more tricky than a regular one because of space constraints. Similar to tiny homes, your square footage is limited, but there should still be no compromise on functionality. We try to jam all best practices into the ADU kitchen design process.
While this may seem challenging, a little forward planning can go a long way! California State Law is trying to make the development process of ADU projects easier.
Let us make accessory dwellings great places to live in with intelligent interior design. Check out our our ADU Kitchens Pinterest Board for more ideas.
Details matter for your piece of mind. These details actually establish the level of independence of an older adult. And how long they can stay this way.