Not everyone needs a full-size swimming pool. Maybe your yard is too small, your budget is too tight, or you simply do not want to maintain 20,000 gallons of water. Plunge pools and cocktail pools offer a real alternative. They give you a place to cool off, relax, and entertain without the footprint or price tag of a traditional pool.
These small pools have surged in popularity over the past few years, and for good reason. This guide explains exactly what plunge pools and cocktail pools are, how they differ, what they cost, and whether one makes sense for your backyard.
What Is a Plunge Pool?
A plunge pool is a small, deep pool designed primarily for cooling off and cold-water immersion. Think of it as the opposite of a hot tub. You get in, your body temperature drops, and you feel refreshed.
Typical plunge pool dimensions range from 6 by 10 feet to 10 by 15 feet, with a depth of 4 to 6 feet. The deeper water allows full-body submersion while standing or crouching, which is the whole point. Many plunge pools are paired with saunas, hot tubs, or outdoor showers as part of a contrast therapy routine.
Plunge pools have roots in European and Australian backyard culture, where smaller yards made full-size pools impractical decades ago. The recent cold plunge trend in the wellness space has pushed them further into the mainstream.
Some plunge pools include chillers that keep the water in the 50 to 60 degree Fahrenheit range for dedicated cold therapy. Others are simply small unheated pools meant for a quick dip on a hot day.
What Is a Cocktail Pool?
A cocktail pool is a small, shallower pool designed for lounging and socializing rather than swimming or cold immersion. The name comes from the idea that you sit in it with a drink in hand, talking with friends.
Cocktail pools share a similar footprint with plunge pools, usually 6 by 10 feet to 12 by 16 feet, but they are shallower at 3.5 to 4.5 feet deep. That depth is intentional. It puts the water at chest height for most adults, which is comfortable for standing and conversation without anyone feeling like they are treading water.
Built-in bench seating is the defining feature of a cocktail pool. Most designs include perimeter benches, sometimes with a tanning ledge or sun shelf at one end where you can set up a lounge chair in just a few inches of water. The focus is comfort, not exercise.
Cocktail pools often include jets for gentle water circulation or a light massage effect, along with lighting, water features, and sometimes a built-in fire feature on the surrounding deck.
What About Spools?
You will hear the term spool (spa plus pool) used alongside plunge pools and cocktail pools. A spool is a hybrid that combines heated spa water with a pool you can sit in or cool off in. Spools are typically on the larger end of the small pool spectrum, around 10 by 15 feet, and include spa jets, heating systems, and often adjustable temperature controls.
The main difference is that a spool is always heated and jet-equipped, functioning as both a hot tub and a small pool in one unit. A plunge pool may or may not be heated (and is often intentionally cold), while a cocktail pool may or may not have jets. A spool blurs the line between all three.
If you are debating between a standalone hot tub and a small pool, a spool gives you both in a single footprint. Just know that heating a spool year-round costs more than running a standard hot tub because of the larger water volume.
Why Small Pools Are Trending
Several factors are driving the small pool trend, and it is not just about aesthetics.
Smaller Lots
Urban and suburban lot sizes have been shrinking for years. A standard 16 by 32 foot in-ground pool requires a significant amount of yard space once you account for decking, setbacks, and equipment. A plunge pool or cocktail pool fits in yards where a full-size pool simply cannot. For more creative ways to work with limited space, our guide to small pool ideas covers spools, stock tanks, container pools, and design strategies that maximize compact backyards.
Lower Cost
A full-size in-ground pool typically costs $50,000 to $100,000 or more depending on materials, features, and your region. For a detailed breakdown of those costs, see our guide on how much a swimming pool costs. Plunge pools and cocktail pools come in significantly lower, which makes pool ownership accessible to more homeowners.
Easier Maintenance
Less water means less everything. Fewer chemicals, smaller pumps, lower electricity bills, and faster cleaning. A cocktail pool holding 3,000 to 5,000 gallons is dramatically easier to maintain than a 20,000 gallon in-ground pool. The same water chemistry principles apply, but the scale is far more manageable.
Sustainability
Smaller pools use less water to fill, less energy to circulate and heat, and fewer chemicals to balance. In drought-prone areas, a plunge pool is a much easier sell than a full-size pool when water restrictions are in effect.
Aesthetic Appeal
Small pools look intentional and designed. A well-placed cocktail pool with smart landscaping can make a small backyard feel like a boutique resort. They photograph well, they pair beautifully with outdoor living spaces, and they do not dominate the yard.
Cost Breakdown
Small pool costs vary widely based on construction method, features, and your location.
Typical Price Ranges
A basic plunge pool or cocktail pool runs between $20,000 and $35,000 installed. This gets you a simple concrete or fiberglass shell with standard equipment, basic coping, and minimal decking.
A mid-range build with custom shaping, bench seating, tile finishes, LED lighting, and a small water feature runs $35,000 to $50,000.
High-end custom cocktail pools with premium finishes, fire and water features, automated systems, and extensive hardscaping can push past $50,000, though they rarely approach the cost of a full-size custom pool.
Compare that to the $50,000 to $100,000 or more range for a standard in-ground pool, and the savings are clear. The difference in ongoing costs is also significant. Smaller equipment, fewer chemicals, and lower energy use can save $500 to $1,500 per year.
Factors That Affect Price
Several variables move the needle on cost. Excavation and access are big ones. A tight urban lot with no side-yard access for equipment can add thousands. Soil conditions matter too. Rocky ground or a high water table increases excavation costs.
Your choice of finish material also affects the total. Basic plaster is the most affordable. Pebble finishes, glass bead, and tile cost more but last longer and look better. The complexity of the shape, the number of features, and local permit fees all factor in as well.
Installation Options
You have three main paths for building a small pool.
Concrete and Gunite
Concrete (gunite or shotcrete) is the traditional method for in-ground pools of any size, and it works well for small pools too. The pool is excavated, steel rebar is set, and concrete is sprayed onto the forms. This gives you complete control over shape, depth, bench placement, and features.
Build time for a concrete plunge or cocktail pool is typically 6 to 10 weeks from excavation to fill. It is the most expensive option but also the most customizable. If you want a specific shape, integrated spa features, or unusual depth configurations, concrete is the way to go. Our swimming pool building and planning guide covers the full construction process.
Fiberglass Shell
Fiberglass pools arrive as a pre-manufactured one-piece shell that gets lowered into the excavated hole. Several manufacturers now make small fiberglass shells specifically designed as plunge pools and cocktail pools, with built-in benches, ledges, and steps.
The advantage of fiberglass is speed. Installation takes as little as one to two weeks. The surface is smooth, non-porous, and resistant to algae growth, which reduces chemical use. The downside is that you are limited to the manufacturer’s available shapes and sizes. You cannot customize the shell after it is made.
Fiberglass cocktail pool shells typically cost $15,000 to $25,000 for the shell alone, with total installed cost in the $25,000 to $45,000 range.
Container and Prefab Options
Shipping container pools and prefab modular pools have entered the market as a faster, sometimes more affordable option. A container pool is exactly what it sounds like: a repurposed or purpose-built steel container fitted with a liner, filtration, and plumbing.
Prefab pools ship as self-contained units that get craned into place. Some include filtration, heating, and jets already installed. You excavate a hole, set the unit, connect utilities, and finish the surrounding area.
Container and prefab pools range from $15,000 to $40,000 depending on size and features. Installation is fast, sometimes just a few days, but they may lack the polished look of a custom concrete or fiberglass pool. These work well for homeowners who want a quick solution or who may move and want to take the pool with them.
Maintenance Compared to Full-Size Pools
Maintaining a small pool follows the same principles as maintaining any pool. You still need to test and balance water chemistry, run the pump, skim debris, and clean surfaces. The difference is scale.
A cocktail pool holding 4,000 gallons uses roughly 75 to 80 percent less chemicals than a 20,000 gallon pool. Your pump and filter are smaller, which means lower electricity costs. A variable-speed pump sized for a small pool might cost $30 to $50 per month to run compared to $80 to $150 for a full-size pool.
Water chemistry can actually be trickier in a very small pool because there is less water to buffer changes. A few swimmers can shift pH and chlorine levels faster than they would in a larger volume. Test more frequently and adjust in smaller increments. If you are weighing sanitizer options, our comparison of saltwater vs. chlorine pools applies to small pools too. Many cocktail pool owners go with saltwater systems for the lower maintenance and softer water feel.
Heating a small pool is significantly cheaper than heating a full-size pool. Whether you use a heat pump, gas heater, or solar, there is simply less water to bring up to temperature. A heat pump can warm a 4,000 gallon cocktail pool in a few hours compared to a full day for a large pool. Check out our guide on how to heat a pool for a full comparison of heating methods.
Design Features Worth Considering
Small pools benefit from thoughtful design choices that maximize the limited space.
Built-In Seating
Bench seating along one or more walls is almost standard in cocktail pools. It turns the pool into an outdoor living room. Consider varying the bench depth so some spots are shallow wading areas while others put you at chest depth.
Tanning Ledge
A tanning ledge (also called a sun shelf or Baja shelf) is a wide, shallow step with just 6 to 8 inches of water. You place a lounge chair on it and sit in the sun with cool water around your legs. In a small pool, a tanning ledge can take up a significant portion of the footprint, so plan accordingly.
Jets and Water Features
Swim jets create a current you can walk or exercise against, turning even a small pool into a functional fitness tool. They add $3,000 to $8,000 to the build cost. Decorative water features like spillovers, scuppers, and bubblers add visual and auditory interest without requiring much space.
Lighting
LED pool lights transform a small pool at night. Color-changing LEDs are affordable and energy-efficient. Combine in-pool lighting with landscape lighting around the pool area for the best effect. Browse pool lighting options if you want ideas.
Heating
Adding a heater extends your pool season significantly and is relatively affordable for small water volumes. In cooler climates, a heated cocktail pool can function almost year-round with the right setup.
Limitations to Know About
Small pools are not for everyone, and it is important to understand what you give up.
No Lap Swimming
You cannot swim laps in a 10 by 12 foot pool. Even with swim jets creating a current, it is not the same experience as swimming across a full-length pool. If fitness swimming is your primary goal, a small pool will disappoint you.
Limited Group Size
A cocktail pool comfortably fits 4 to 6 adults. You can squeeze in more, but it gets crowded fast. If you regularly host large pool parties, a small pool will feel inadequate. This is especially true for pool games. Activities like water volleyball need a full-size pool to work properly.
Kids May Want More
Children who want to play, splash, and roughhouse need room. A cocktail pool gives them a place to cool off, but it does not replace the space needed for pool toys, diving, and games. If your primary motivation is giving the kids a pool, think carefully about whether a small pool will satisfy them beyond the first summer.
Resale Value Is Uncertain
Full-size in-ground pools have proven resale value in warm-climate markets. Small pools are newer to the mainstream market, and their impact on home value is less established. A well-designed cocktail pool in a desirable neighborhood likely adds value, but do not count on it the way you would with a traditional pool. Our guide on above-ground vs. in-ground pools covers resale value considerations in more detail.
Best Climates and Use Cases
Small pools work well in almost any climate, but they shine brightest in certain situations.
Warm climates are the obvious sweet spot. In places like Arizona, Texas, Florida, and Southern California, a plunge pool provides daily relief from the heat without the cost and maintenance of a full-size pool.
Small urban lots are where cocktail pools really earn their place. If your backyard is 500 to 1,500 square feet, a small pool might be the only option that leaves room for outdoor dining, landscaping, and living space.
Empty nesters and couples who do not need space for kids to play often find that a cocktail pool is the perfect size. It provides a place to relax and entertain without the upkeep of a larger pool.
Cold plunge enthusiasts benefit from a dedicated plunge pool, especially when paired with a sauna or hot tub for contrast therapy. A chilled plunge pool is far more practical than filling a stock tank with ice every day.
Vacation rentals and Airbnbs get a significant booking boost from any pool. A stylish cocktail pool with good landscaping can be the difference between a $150 and a $250 per night listing, and it costs a fraction of a full-size pool to install and maintain. Pair it with great pool landscaping and you have a standout listing.
How to Decide If a Small Pool Is Right for You
Ask yourself a few straightforward questions. Do you want a pool primarily for cooling off, relaxing, and socializing? A cocktail pool or plunge pool handles all of that. Do you want to swim laps or host large pool parties? You need a bigger pool.
Consider your yard. Measure the available space and subtract setbacks required by local code (typically 3 to 5 feet from property lines and structures). If a full-size pool does not fit with room to spare, a small pool might be the perfect compromise.
Look at your budget honestly. If $20,000 to $40,000 is your range, a small pool is a real, quality pool within reach. If you can spend $60,000 or more, you have the option of going bigger, but that does not mean you should. Many homeowners with large budgets still choose a cocktail pool because it fits their lifestyle better.
If you are earlier in the planning process and want to understand the full picture of pool ownership, start with our swimming pool building and planning guide for a step-by-step walkthrough.
Frequently Asked Questions
What is the difference between a plunge pool and a cocktail pool?
A plunge pool is small and deep (4 to 6 feet), designed primarily for cooling off or cold-water immersion. A cocktail pool is small and shallower (3.5 to 4.5 feet), designed for lounging and socializing with built-in bench seating. Both share a compact footprint, but the intended use is different.
How much does a plunge pool or cocktail pool cost?
Most plunge pools and cocktail pools cost between $20,000 and $50,000 installed, depending on the construction method, materials, and features. A basic fiberglass shell install starts around $25,000. A custom concrete cocktail pool with premium finishes and water features can reach $50,000 or more. Ongoing maintenance costs run 50 to 80 percent less than a full-size pool.
Can you exercise in a plunge pool?
You can do water walking, resistance exercises, and stretching in a plunge pool. Adding swim jets allows you to walk or jog against a current for a cardio workout. However, you cannot swim laps in the traditional sense due to the limited length. For serious swim training, you need a full-size pool or a dedicated swim spa.
Do small pools need the same permits as regular pools?
Yes, in most jurisdictions any permanent in-ground pool requires a building permit regardless of size. You will typically need to meet the same fencing, barrier, and safety requirements as a full-size pool. Setback requirements from property lines and structures also apply. Check with your local building department before starting any pool project.
Is a spool better than a hot tub?
A spool gives you the heated jet experience of a hot tub plus enough room to cool off or wade, all in one unit. It costs more than a standalone hot tub ($20,000 to $50,000 vs. $5,000 to $15,000) and uses more energy to heat. If you want the flexibility of both warm and cool water in a space you can share with several people, a spool is the better choice. If you just want a place for two to four people to soak in hot water, a standard hot tub is simpler and cheaper.