Hand-washing dishes in a small apartment gets old fast, especially when your kitchen barely has counter space for a drying rack. An apartment size dishwasher solves that problem without requiring a full 24-inch cabinet bay or permanent plumbing modifications. Whether you rent or own, there is a compact model that fits your space, your budget, and your landlord’s rules.
Types of Apartment Size Dishwashers
The term “apartment size” covers three distinct categories, and choosing the wrong one is the most common mistake buyers make.
Countertop Dishwashers
These sit on your kitchen counter and connect to the faucet with a quick-connect adapter. Typical dimensions are 17 x 20 x 22 inches, and they hold 4-6 place settings per load. Prices range from $250 to $500. Brands like hOmeLabs, Farberware, and COMFEE dominate this space. The trade-off is obvious — they occupy valuable counter real estate and cannot handle large pots or baking sheets.
Portable Dishwashers (18-Inch and 24-Inch)
These roll on casters and connect to the kitchen faucet via a unicouple adapter when in use, then roll into a closet or corner when not needed. An 18-inch portable holds 8 place settings and costs $500-$800. The 24-inch versions hold 12 place settings but take up more floor space. SPT (Sunpentown) and GE make the most reliable portable models.
Slim Built-In Dishwashers (18-Inch)
If you have a permanent 18-inch cabinet opening, a slim built-in unit is the best long-term solution. Bosch (SPE53B52UC and SPE68B55UC) leads this category with quiet operation at 44-46 dB and excellent cleaning performance. Prices run $700-$1,100. These require permanent plumbing connections identical to a standard dishwasher.
What to Look for When Buying
Capacity alone does not tell the whole story. Pay attention to these specs before committing to an apartment size dishwasher.
- Noise level: Anything under 50 dB is acceptable for an open-plan apartment. Over 55 dB and you will hear it clearly from the living room. Bosch and Miele are the quietest brands in compact sizes.
- Wash cycles: At minimum, you want Normal, Heavy, and Quick Wash. A sanitize cycle (155 degrees F rinse) is worth having if you have young children.
- Interior layout: Adjustable upper racks and fold-down tines make a huge difference in a small tub. Check whether the unit can fit dinner plates up to 10.5 inches — some compact models max out at 9 inches.
- Water and energy use: Compact dishwashers typically use 2-4 gallons per cycle, compared to 4-6 gallons for full-size units. Look for Energy Star certification to keep utility bills low.
- Inlet water temperature: Most dishwashers need 120 degrees F inlet water to clean effectively. Some budget countertop models include an internal heater, which adds to cycle time but improves performance.
Installation Options for Renters
Renters need solutions that leave no permanent modifications. Countertop and portable models are the clear winners here since they use a quick-connect faucet adapter that installs and removes in seconds.
Before buying, check your faucet type. Most quick-connect adapters work with standard threaded faucets but are not compatible with pull-down sprayer faucets or integrated faucet designs. If your faucet is not compatible, a $15-$25 adapter from Amazon usually solves the problem. Measure the aerator thread diameter — most US kitchen faucets use 15/16-inch male or 55/64-inch female threads.
Portable dishwashers need a grounded 120-volt outlet within reach of the power cord (typically 5-6 feet). Avoid using extension cords, as most manufacturer warranties are voided if one is used.
Top Picks by Category
After comparing specifications, reliability data, and user feedback, these models stand out in each category.
- Best countertop: hOmeLabs Compact Countertop Dishwasher (HME010033N) — 6 place settings, 6 wash cycles, stainless steel interior, around $350.
- Best portable 18-inch: SPT SD-9263SS — 8 place settings, delay start, stainless steel tub, Energy Star rated, around $650.
- Best slim built-in: Bosch 300 Series SPE53B52UC — 9 place settings, 46 dB noise level, AquaStop leak protection, around $900.
- Best budget option: COMFEE Countertop Dishwasher (CDC22P1AWW) — 4 place settings, built-in water tank option (no hookup needed), around $280.
Water Tank vs. Faucet Connection
A newer category of countertop dishwashers includes a built-in water tank that you fill manually, eliminating the need for any faucet connection. These are perfect for kitchens where the faucet is incompatible or too far from an outlet. COMFEE, Hermitlux, and NOVETE offer tank-based models in the $250-$400 range.
The downside is capacity. Tank models typically hold only 3-4 place settings, and you need to refill the tank between cycles if running back-to-back loads. Cleaning performance is slightly lower than faucet-connected units because water pressure from a tank is lower than municipal supply pressure.
Maintenance Tips for Compact Dishwashers
Small dishwashers need more frequent maintenance than full-size units because food debris accumulates faster in a smaller filter area.
- Clean the filter after every 2-3 cycles. Rinse it under running water and scrub with an old toothbrush.
- Run an empty cycle with a cup of white vinegar monthly to remove mineral deposits and odors.
- Wipe the door gasket weekly — it traps food particles and moisture, leading to mold.
- Check and clean the spray arms quarterly. Toothpicks work well for clearing clogged spray holes.
- For portable models, inspect the unicouple hose connections for leaks after every use. Replace rubber washers annually.
Cost of Ownership Over 5 Years
An apartment size dishwasher costs less than hand washing when you factor in water usage, time, and soap. Hand washing uses an average of 27 gallons per session versus 2-4 gallons for a compact dishwasher. Over five years with daily use, a countertop model saves roughly $200-$350 in water costs alone, easily covering its purchase price. Factor in the time savings of 15-20 minutes per day, and the math is overwhelming.
Apartment Dishwasher Dimensions: Measuring Before You Buy
Place-setting counts and noise ratings get most of the attention, but a compact machine that does not physically fit is the fastest route to a return. Apartment dishwasher dimensions vary more than full-size ones, because each category solves a different space problem. Here is how to check the numbers against your actual kitchen, including the clearances that spec sheets tend to bury in the fine print.
Countertop Units and Upper Cabinet Clearance
The most common surprise with a countertop model is height. Many kitchens have only about 18 inches between the counter surface and the bottom of the upper cabinets, and a countertop dishwasher often stands 17 to 18 inches tall. That leaves almost no room to lift the top or open the door fully if the unit sits under a cabinet. Measure the gap at the spot where the machine will live, then add an inch or two for air circulation. Also check the depth: some units run close to 20 inches deep, which can overhang a shallow counter or crowd the backsplash outlet.
Slim Built-In Openings
An 18-inch built-in needs a cabinet opening close to 18 inches wide, roughly 34 to 35 inches tall from floor to the underside of the countertop, and about 24 inches deep. Leveling legs usually adjust the height by an inch or more, which helps when new flooring has raised the floor. Remember the door: when it opens, it swings down and out about 22 to 24 inches, so make sure it does not collide with an oven handle, a corner drawer, or an island in a narrow galley. Apartment dishwasher dimensions on the spec sheet rarely include that open-door footprint, so measure the aisle yourself.
Portable Units and Floor Space
Portable models are usually about 36 inches tall so the top lines up with a standard counter, and many have a wood or laminate top you can use as extra prep space. Check the path from the storage spot to the sink as well: doorways, rugs, and floor transitions need to let the casters roll freely. A full portable can weigh 60 to 100 pounds, and it gets heavier with water inside, so lock the casters before running a cycle.
A Quick Measuring Checklist
- Width, height, and depth of the space, measured in three places with the smallest number used.
- Door swing clearance in front of the machine.
- Distance to the faucet and to a grounded outlet.
- Delivery path through entry doors, hallways, and tight turns.
Plug portable and countertop units directly into a wall outlet, ideally a GFCI-protected kitchen outlet, rather than a power strip. A built-in needs a dedicated water supply, drain, and electrical connection, so if a new circuit or plumbing line is required, hire a licensed electrician or plumber and get your landlord’s approval first. Matching apartment dishwasher dimensions to these measurements is what keeps a small kitchen working.
