Building an inground swimming pool is one of the most exciting ways to transform your backyard. But before choosing the tile, waterfall, or perfect spot for a tanning ledge, there’s an important question to answer:
What does it actually take to build a swimming pool on your St. Louis property?
From established neighborhoods in Kirkwood and Webster Groves to spacious properties in Chesterfield, Wildwood, and St. Charles County, every backyard presents its own opportunities and challenges.
The good news? With thoughtful planning and the right St. Louis swimming pool builder, you can create a custom outdoor space that complements your home, fits your lifestyle, and makes the most of Missouri’s swimming season.
Here are seven things St. Louis homeowners should consider before breaking ground.
1. Your Backyard’s Layout Matters More Than You Think
Not every backyard is a perfectly flat rectangle, and that’s especially true throughout the St. Louis region.
Established neighborhoods may feature mature trees, narrow side yards, older patios, and existing landscaping. Properties farther west may have more pronounced slopes, wooded areas, or irregular lot shapes.
These conditions don’t necessarily prevent you from building a pool. They simply influence the design.
For example:
- Chesterfield and Wildwood: Sloping yards may create opportunities for raised spas, retaining walls, or multi-level outdoor living areas.
- Kirkwood and Webster Groves: Mature landscaping and established homes may call for carefully positioned pools that preserve usable yard space.
- St. Peters and O’Fallon: Homeowners may want to balance pool size with lawn space, patios, and outdoor entertainment areas.
- Creve Coeur and Town and Country: Custom pool layouts can complement existing architecture, landscaping, and outdoor living features.
Before finalizing a design, your pool builder should evaluate available space, access for construction equipment, grading, drainage, and potential utility conflicts.
The takeaway: The best swimming pool isn’t necessarily the largest one. It’s the pool that works naturally with your property.
2. St. Louis Soil, Drainage, and Elevation Can Influence Pool Construction
One of the most important parts of planning an inground pool happens before excavation begins.
Depending on the location, St. Louis-area properties may have clay-rich soils, limestone or other rock formations, changing elevations, or drainage conditions that require additional planning.
These factors can affect excavation, site preparation, structural engineering, and the surrounding deck.
A professional site assessment should consider:
- Soil and subsurface conditions
- Surface drainage and water movement
- Existing retaining walls
- Underground utilities
- Access for excavation equipment
- Nearby structures and foundations
A sloped backyard, for example, might require a retaining wall or carefully designed drainage system. An area with shallow rock could require different excavation methods.
These considerations are particularly important when planning a custom gunite swimming pool, where the design can be tailored to the available space and construction conditions.
The takeaway: Understanding your property early helps reduce surprises during construction and allows your pool design to respond to actual site conditions.
3. Pool Permits Vary Across St. Louis Communities
If you’re building an inground pool in St. Louis, permitting is an essential part of the process.
However, requirements can differ depending on whether your property is in the City of St. Louis, unincorporated St. Louis County, St. Charles County, or an incorporated municipality.
For example, St. Louis County requires permits for qualifying residential inground swimming pools and spas. Its permitting guidance addresses zoning approval, construction plans, safety barriers, and applicable electrical and plumbing requirements.
Homeowners in communities such as Kirkwood, Chesterfield, Ballwin, and O’Fallon should verify which local government handles their permits and inspections.
Depending on the property, additional considerations may include:
- Setback requirements
- Fencing and pool barriers
- Homeowners association or subdivision restrictions
- Electrical and plumbing permits
- Drainage requirements
- Easements and utility access
- Final inspections
You can review St. Louis County’s official inground pool permit guidance as a starting point.
The takeaway: Don’t assume that the requirements for a neighbor’s pool apply to your property. Verify the rules for your specific municipality and address.
4. A Custom Gunite Pool Offers More Design Flexibility
When researching inground swimming pools in St. Louis, you’ll encounter several construction options.
For homeowners seeking personalized shapes, dimensions, depths, and integrated features, gunite construction offers considerable flexibility.
Gunite is a form of concrete applied pneumatically to create a reinforced pool structure. It allows designers to create pools that respond to the homeowner’s preferences and the property’s layout.
At Blue Haven Pools St. Louis, custom gunite construction is central to the pool-building process.
Some design features worth considering include:
Tanning ledges: Shallow areas that create space for in-water lounging.
Integrated spas: A connected or adjacent spa that adds another way to enjoy your outdoor space.
Waterfalls and sheer descents: Water features that add movement, sound, and visual interest.
Built-in benches: Comfortable seating areas incorporated into the pool structure.
LED lighting: Color-changing illumination that creates a different atmosphere after sunset.
Custom decking: Materials such as travertine, pavers, stamped concrete, or decorative finishes that help connect the pool to the home.
Your ideal combination depends on how you plan to use the pool.
A family with young children may prioritize a shallow-water gathering area and open swimming space. Homeowners who frequently entertain may prefer integrated seating, water features, and a nearby outdoor kitchen.
The takeaway: Start with your lifestyle, not a list of features. A great pool design should make your backyard easier and more enjoyable to use.
5. Plan for St. Louis Weather, Not Just Summer Sunshine
St. Louis summers can be hot and humid, making a backyard swimming pool especially appealing.
But Missouri’s seasonal temperature changes deserve consideration during the design process.
A pool that’s comfortable in July may need supplemental heating during cooler spring or fall weather.
Depending on your goals, options may include:
- A pool heater or heat pump to maintain comfortable water temperatures
- An automatic cover to help reduce evaporation and heat loss
- An integrated spa for cooler evenings
- LED lighting for nighttime swimming and entertaining
- Shaded seating areas for hot summer afternoons
Homeowners should also plan for seasonal maintenance and winterization to protect pool equipment during freezing temperatures.
An experienced builder can help explain the advantages and operating considerations of different heating, filtration, and automation options.
The takeaway: Design for the entire outdoor season, not just the hottest days of summer.
6. Your Pool Budget Should Include More Than the Pool Itself
One of the most common questions homeowners ask is, “How much does an inground pool cost in St. Louis?”
The answer depends on the project.
Pool size, shape, construction materials, site conditions, equipment, and custom features all influence the final investment.
But the swimming pool itself is only one part of the budget.
Other potential expenses include:
- Excavation and site preparation
- Grading and drainage improvements
- Retaining walls
- Electrical and plumbing installation
- Pool decking and patios
- Fencing and safety barriers
- Landscaping and lighting
- Heating and automation
- Permits and inspections
For example, a property in Wildwood with significant elevation changes may require different site preparation than a relatively level lot in St. Peters.
Similarly, adding an integrated spa, expansive travertine deck, or custom waterfall can change the overall project scope.
Rather than comparing estimates based solely on pool dimensions, ask what each proposal includes.
Does the quote cover decking? What about permits, equipment, grading, and cleanup? Are allowances clearly explained?
For additional planning information, explore Blue Haven’s inground swimming pool resources.
The takeaway: A detailed proposal helps you understand the complete investment and make informed decisions about where to prioritize your budget.
7. Visit a Real Pool Before Finalizing Your Design
Online galleries and inspiration boards are excellent places to begin planning.
But photographs can’t always communicate the scale of a tanning ledge, the texture of a pool finish, or the sound of a waterfall.
That’s why seeing pool features in person can be so valuable.
Blue Haven Pools St. Louis has a design center in St. Peters, Missouri, featuring a working gunite display pool.
Homeowners can explore examples of design materials and features, including:
- Pool tile and interior finishes
- Tanning ledges
- Water features and raised walls
- LED lighting
- Decking materials
- Integrated fire and water features
Seeing these options firsthand can make it easier to decide which elements belong in your own backyard.
You can learn more about the Blue Haven St. Louis pool design center and explore options for a personalized consultation.
The takeaway: Seeing materials and pool features in person can help turn a collection of ideas into a more confident design decision.
Frequently Asked Questions About Building an Inground Pool in St. Louis
How long does it take to build an inground pool in St. Louis?
Construction timelines depend on pool size, design complexity, permits, weather, site conditions, and the builder’s schedule. Custom gunite pools involve several construction stages, including excavation, steel installation, plumbing, gunite application, finishing, and equipment startup. Request a project-specific timeline before construction begins.
Can you build a pool in a sloped backyard in St. Louis?
Yes, many sloped properties can accommodate an inground pool. However, additional engineering, retaining walls, drainage improvements, or specialized site preparation may be necessary. A professional evaluation is the best way to determine feasibility.
Do I need a permit to build a pool in St. Louis County?
Qualifying residential inground swimming pools require building permits in unincorporated St. Louis County and municipalities using the county’s code enforcement services. Other municipalities may administer their own requirements. Check with the appropriate building department before construction.
What is the best type of inground pool for St. Louis?
The best pool depends on your property, design goals, budget, and maintenance preferences. Custom gunite pools are an option for homeowners who want flexible shapes, depths, and integrated features.
Can I build an inground pool in a small St. Louis backyard?
Often, yes. Compact geometric pools, built-in benches, integrated steps, and carefully planned decking can help maximize limited outdoor space. Setbacks, access, and local requirements will influence the final design.
When should I contact a St. Louis pool builder?
Ideally, begin planning several months before your desired swimming season. Early conversations provide time for design decisions, site evaluations, permitting, and construction scheduling. Planning can begin at any time of year.
Build a Backyard That Works for Your St. Louis Lifestyle
A swimming pool should do more than look beautiful in photographs.
It should fit your property, complement your home, and create opportunities to enjoy time with the people who matter most.
Whether you’re planning a modern geometric pool in Chesterfield, a family-friendly backyard retreat in St. Charles County, or a custom outdoor living space in Kirkwood, the right design begins with understanding your goals and your property.
At Blue Haven Pools St. Louis, homeowners can explore custom gunite swimming pools, integrated spas, water features, and complete outdoor living designs with a local team experienced in pool construction.
Ready to see what’s possible in your backyard?
Contact Blue Haven Pools St. Louis to discuss your project, explore design possibilities, and request a personalized pool consultation.
