Emergency Water Storage for Apartments and Small Homes
When people think about emergency water storage, they often picture garages filled with barrels or large outdoor tanks.
That can be discouraging if you live in an apartment or a small home — especially if storage space is already tight. The good news is this: you don’t need a lot of space to build a solid emergency water plan.
How Much Emergency Water Do You Really Need?
A common guideline is one gallon of potable water per person, per day, covering drinking, cooking, and very basic hygiene. FEMA recommends having at least a three-day supply (three gallons per person) as a minimum starting point.
One gallon a day adds up quickly, which is why planning matters. Instead of guessing, we recommend starting with a clear baseline. If you haven’t already, read our detailed breakdown on how much emergency water you really need, then come back here to decide where that water should live.
For apartment dwellers, stackable storage solutions like our Water Brick containers can make it much easier to store that supply without taking up valuable floor space.
Where to Store Emergency Water Indoors
In smaller living spaces, the challenge isn’t whether you can store water — it’s figuring out where it makes sense. The best approach is to use areas that already exist but are often overlooked.
Closets are one of the easiest places to start. Cases of bottled or canned water can be stacked along walls, behind hanging clothes, or on closet floors without interfering with daily use. Under-bed storage is another high-value option. Most beds have unused space beneath them that can hold multiple cases of canned water without being visible or in the way.
Furniture can also double as storage. Empty end tables, ottomans, benches, or cabinets can discreetly hold canned water or smaller water containers, keeping them accessible without taking up additional floor space. Other workable areas include laundry rooms, utility closets, or the space behind larger furniture like couches or armoires — areas that typically go unused but can quietly support your emergency water plan.
A Smart Stackable Solution for Small Spaces
One of the biggest challenges with emergency water storage in apartments is space. Large barrels or bulky containers simply aren’t practical for most small homes.
That’s why stackable storage systems have become such a popular solution. Containers like Water Bricks are designed to stack securely, allowing you to build your water supply vertically instead of taking up valuable floor space.
Because they’re compact and modular, you can store them in closets, under beds, in utility rooms, or even in unused corners. You can also start with a few and expand over time.
Storing Emergency Water Outside Your Living Space
If your apartment or small home truly has no room for additional water, storing some of it outside your immediate living area can be a practical solution.
Some people choose to keep water in a garage, shared storage area, or a small rented storage unit. This can be especially helpful if you’re preparing for longer outages or supporting more than one person.
If you’re in an area with enough rain, capturing water runoff in barrels is not only another source of water, but a great place to store extra water outside.
When storing water outside the home, temperature matters. Freezing conditions can damage containers, while sustained high heat can degrade plastic over time. If outdoor or off-site storage is part of your plan, choose containers designed to handle temperature swings and consider how you’ll keep water from freezing.
Not All Water Needs to Be Drinkable
One of the most common mistakes people make is assuming every gallon of stored water must be potable. In reality, having non-drinkable or “gray” water available can significantly extend how long your clean drinking supply lasts.
Water that isn’t safe or appealing to drink can still be used for cleaning, flushing toilets, and basic hygiene. This includes older stored water, water kept outside, or water collected during a “do not drink” emergency alert. Using gray water for these tasks helps preserve your limited supply of safe drinking water for when it truly matters.
In a crisis, dirty water is often better than no water — especially when it allows you to conserve what’s safe to drink. And with the right filtration systems, in some cases that not-so-clean water can be made safe to drink.
Last-Minute Water Collection Still Matters
If you know a major storm is forecasted to impact your area and could disrupt water service, taking proactive steps ahead of time can make a meaningful difference. Filling bathtubs, sinks, buckets, or other containers before pressure drops gives you additional non-potable water for household use.
A bathtub water bladder, such as a WaterBob, can be especially useful because it keeps water sealed and cleaner than an open tub. That said, many outages still happen without warning. Last-minute water collection works best as a supplement to stored water — not a replacement for it.
Build a Layered Water Plan
The most reliable emergency water plans don’t rely on a single solution. Instead, they combine multiple layers so you’re not caught off guard if one option falls short.
A practical layered approach includes:
- Stored drinking water inside your living space
- Additional water stored outside the home if possible
- Awareness of water already inside your home’s water heater
Final Thoughts
Living in an apartment or small home doesn’t mean can’t store water — it just means you need to be intentional. Even modest amounts of stored water can make a meaningful difference when utilities fail and store shelves are empty.
Work with the space you have, be smart about storage, and aim for at least three gallons of water per person in your household.