Water features such as tiered fountains, ponds and waterfalls have become one of the most sought‑after additions in modern homes. They change the atmosphere of a space in ways that few other elements can.

“There’s something about hearing the sound of flowing water and observing the rhythm of its movement that relaxes you,” says John Shamala, a senior landscape architect at Shama Landscape Architects.

A water feature in the home, he notes, offers a space for meditation, reflection and relaxation.

But beyond their aesthetic and calming appeal, water features can serve both functional and economic purposes in a home.

In warmer regions like Kisumu and Mombasa, John explains, water features are often used to create a cooler microclimate within a space.

“They help cool the area and allow people to enjoy spaces that might otherwise feel too hot,” he says.

Additionally, small installations may attract birds to drink or bathe, elevating the home into a vibrant, natural ecosystem.

John also notes that incorporating such features can raise property value and often become points of negotiation in sales or rentals.

Factors to consider

But while water features might appear effortless, John says they require a lot of careful planning.

“The best ones feel natural in the space, are easy to maintain, and align with how the home owner uses their outdoor space,” he says.
Several factors come into play long before installation begins. One of these considerations is space.

“Nowadays, plot sizes are shrinking, often leaving home owners with limited outdoor space after construction,” John explains. “Naturally, this affects the type and scale of features that can be accommodated.”

For balconies and small spaces, the landscape architect recommends wall fountains, wall cascades, water walls, or indoor table top fountains. For slightly larger spaces like small courtyards, tiered fountains and small ponds work well, while waterfalls, bigger ponds and streams, are generally more suited to large spaces.

Budget is another key factor.

“Water features are not cheap,” John says, noting that they involve more than just the visible structure. “Pumps, piping, filtration systems and water circulation all contribute to the overall cost, making it important for home owners to plan accordingly.”

Access to both water and a reliable power supply to power the pumps is also critical. Because most features operate on a recirculating setup, a steady water supply is needed to keep them functioning properly and prevent issues such as airlocks.

And while many people rely on conventional electricity, John recommends solar-powered systems, which he says are increasingly being adopted as a more sustainable alternative.

Safety, particularly in homes with young children, must also be taken into account.

“Open water elements like ponds or streams can sometimes be quite deep,” he says. “With children around, there is the risk of them falling in, and that must be carefully considered beforehand.”

Placement and maintenance matter as well. Features located near trees or heavy vegetation cover, for instance, may require more frequent cleaning due to falling leaves and debris, which may clog up the system.

Another factor that plays a significant role in the decision-making is the overall architectural style of the home.

“The rule of thumb is to always introduce elements that are in line with the original style,” John advises. “A mismatch can make the feature feel out of place.”

Ultimately, however, it all comes down to the intended purpose of the feature. Whether the goal is to create a focal point, mask noise, enhance visual appeal, or offer relaxation, clarity of intent helps to guide both its design and execution.

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Beyond how a feature fits into a space, its success also depends on how well it functions. For Benson Muriuki, a water engineer and founder of Benfel Stone & Water, most water features operate on one core principle: continuous, recirculating movement.

“A water fountain has to have water moving,” he says. “You see it, you hear it, and that’s how the calming effect is achieved.”

Fountains, waterfalls or cascades?

While terms such as fountains, waterfalls and cascades are often used interchangeably, Benson notes that they differ slightly when it comes to the design.

“Cascades typically involve water flowing over multiple levels, almost like a relay, while waterfalls mimic a more natural drop over a raised surface,” he says.

“Fountains, on the other hand, act as a broader category that can incorporate various styles, including jet systems where water is pushed through an opening to create upward or outward streams.”

Whatever the design though, the underlying principle remains the same: water is pumped from a reservoir through a pre-planned path before flowing back and being recycled in a continuous loop.

Maintenance

Keeping that system running smoothly requires regular upkeep, something that many home owners greatly underestimate.

“The biggest challenge is maintaining the water quality,” Benson says. “If it’s not filtered or treated, you start seeing algae or sediments.”

Clogging is another common issue. When debris such as leaves and dust enter the system, pumps, which are central to circulation, are particularly vulnerable. To address this, Benson suggests incorporating chemical treatments and filtration systems to maintain water clarity and prevent buildup.

Filtration systems, he explains, significantly reduce the frequency of cleaning. In relatively clean environments, a filtered system may go for months without needing thorough cleaning.

A wide shot of a beautiful artificial waterfall in a tropical garden.

Photo credit: Shutterstock

Without filtration however, both the water and the mechanism may need to be cleaned and replaced as frequently as every two months.

What determines the cost?

When it comes to the cost of installation, Benson says smaller fountains can start from around Sh60,000, while medium-sized installations may cost approximately Sh200,000. Larger, more elaborate systems, complete with lighting and fancy designs, can run into hundreds of thousands or even exceed Sh1 million.

Beyond installation, there are ongoing costs. While some providers may offer maintenance for an initial period, long-term upkeep, which includes cleaning, repairs and system checks, typically comes at an additional cost.

Rising demand

But while uptake remains slow, Benson says demand has grown in recent years, with more home owners exploring ways to incorporate water features into their spaces.

“I’ve been in this industry since 2015. Some people see it as an excessive expense without direct returns so they shy away from it, but more people are taking it up,” he says. “I have seen a percentage growth of over 25 percent.”

For ponds and streams, Carllewis Chweya, a landscape architect at Aquascapes, says more often than not, the approach shifts from purely mechanical systems to managing a balancing between both technical systems and natural processes.

Defining the two, he says ponds typically hold water within a defined space, while streams are designed to mimic natural flow and give the effect of a flowing river within a property.

“Ponds serve different purposes depending on the home owner’s needs,” he explains. “Some people install them purely for aesthetics, while others use them to store water, especially in areas where supply is inconsistent.”

The intended purpose often determines the design of the pond. Ornamental ponds, such as reflective pools and koi ponds are among the most common for enhancing aesthetics.

“Reflective pools are designed to reflect the surrounding architecture or landscape on the water surface and create a sense of elegance and invite contemplation,” Carllewis says. “Koi ponds include fish which bring in colour and add a visual dimension to the space.”

Other types include swimming ponds, which offer a chemical-free alternative to traditional pools and rely on natural biological processes to keep the water clean. Irrigation ponds on the other hand, serve a more functional purpose in storing water.

Still, it is possible for one pond to serve multiple functions at the same time. Of all the water features, ponds and streams tend to require the largest chunks of space, the highest installation costs, and naturally, the highest levels of maintenance.

“A pond is not just something you install and leave,” Carllewis says. “It requires regular monitoring to ensure the water quality is maintained, especially if it includes plants or fish.”

Unlike mechanical fountains, ponds often incorporate a mix of different natural elements including aquatic plants such as papyrus reeds, water lilies, duckweed and algae, which play a crucial role in naturally filtering impurities, oxygenating the water, regulating the temperature for fish and providing them with an additional food source. However, these plants must be carefully managed to prevent overgrowth.

“Plant coverage in a pond should be maintained at no more than 60 percent,” he says. “If left to cover the entire surface, they can end up doing more harm than good, including suffocating fish if you have some.”

With fish, predator birds must also be considered, using options such as bird scare tape to keep them away.

Maintenance of such systems further includes regular cleaning, monitoring of water levels, ensuring the pumps remain functional and where applicable, feeding and caring for the fish.

In some cases, maintenance may need to be done several times a week to keep the system healthy and visually appealing. However, simpler ponds, primarily those used for water storage, require less frequent intervention, with maintenance focused mainly on checking the mechanical components.

It is also important to maintain water movement to minimise the risk of breeding mosquitoes.

“Mosquitoes breed wherever the water is stagnant,” Carllewis says. “So install a pump to ensure motion or add a fountain. You can also add fish because they feed on the mosquito eggs.”

To curb excessive water use, Carl suggests incorporating dam liners to prevent the water from infiltrating the ground and necessitating frequent top ups. To limit evaporation, he further recommends digging the pond deep during excavation, using shade plants and keeping the water in motion. He also advocates for using rain water to re-fill the ponds.

Like with other water installations, the costs vary depending on size, materials and even site conditions (type of soil and the excavation requirements). According to Carl, a small pond can start from Sh150,000, with larger, more complex features, costing significantly more.

For those willing to commit, all three experts emphasise the importance of involving a specialist - not just a regular plumber - regardless of how simple or complex the feature may seem.

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