Tunnel Car Wash - High-Traffic South Dakota Location

$1.2M

Revenue

$755K

SDE

9.2x

Multiple

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Full Editorial Writeup

This is a modern car wash operation featuring three service bays: two legacy auto wash bays (touchless and brush) from the 2017 build-out, plus a high-capacity 50-foot tunnel wash added in 2022 that can process up to 60 cars per hour. The facility sits on a prime 0.68-acre site along a major municipal corridor with 14,000-16,000 daily vehicle passes, surrounded by popular shopping centers that drive consistent traffic.

The business has established itself as the only membership-based tunnel wash within a 90-mile radius, creating a significant competitive moat in this South Dakota market. Beyond the core wash services, the operation includes onsite vacuuming, a detailing area, and an enclosed pet wash bay, capturing additional revenue per customer visit. The 29,621 square feet of total improvements include a 4,776 square foot primary building with covered service canopies and office space.

Since adding the tunnel wash, volumes have surged from what was likely a much smaller operation to 84,261 washes completed in 2025, with projections of 93,000 washes in 2026. The owner maintains conservative pricing at $18 per car versus $25 charged by competitors in larger markets, suggesting immediate upside potential. The business generates strong cash flow while requiring minimal staffing, positioning it as a capital-efficient operation in a recession-resistant industry.

Why we like it

Cash Flow Quality: $755K in cash flow on $1.2M revenue translates to 63% margins, which is exceptional for a service business and reflects the operating leverage of the tunnel wash investment. The 84,261 annual washes at current pricing provide predictable, high-frequency revenue with strong unit economics that should only improve with scale.
Geographic Moat: Being the only tunnel wash with memberships within 90 miles creates genuine pricing power and customer retention advantages. The 14,000-16,000 daily vehicle corridor provides a massive addressable market with minimal competitive pressure, especially given the capital requirements to build competing infrastructure.
Recession-Resistant Demand: Car washing represents non-deferrable maintenance spending that holds up well during economic downturns, particularly in harsh weather climates where salt and grime create year-round demand. The membership model creates recurring revenue that smooths seasonal variations and improves customer lifetime value.
Operational Leverage: The recent tunnel addition demonstrates how incremental capacity investments can dramatically improve throughput and margins, with the ability to process 60 cars per hour representing significant untapped capacity given current volumes. The minimal staffing requirements (owner plus 2 part-time) show this business can scale revenue without proportional labor cost increases.

How to improve it

Immediate Price Optimization: Raise prices from $18 to $20 per car as the owner is already considering, which would generate an additional $186K in annual net income according to the listing. With no meaningful competition within 90 miles, customers have limited alternatives and will absorb modest price increases.
Membership Growth Campaign: Implement aggressive membership acquisition through introductory pricing, referral bonuses, and partnerships with local dealerships and fleet operators. The recurring revenue nature of memberships improves cash flow predictability and customer lifetime value while reducing price sensitivity.
Technology Integration: Install modern POS systems, mobile app ordering, and automated license plate recognition to reduce labor costs and improve customer experience. These efficiency gains can help justify premium pricing while reducing the owner's day-to-day involvement.
Capacity Utilization: Focus marketing efforts on peak-hour traffic optimization and off-peak promotions to better utilize the 60-car-per-hour tunnel capacity. Current volumes suggest significant room to grow before hitting operational constraints.
Ancillary Revenue Streams: Expand high-margin services like detailing packages, protective coatings, and retail car care products that complement the core wash business. The existing detailing area provides infrastructure to capture additional revenue per customer visit.
Fleet and Commercial Contracts: Target local businesses, delivery companies, and government fleets with volume discounts and scheduled service agreements. These relationships provide predictable revenue and help smooth demand fluctuations.
Operational Efficiency: Implement lean processes to reduce the owner's daily involvement and create systems that enable the business to run with part-time management. This reduces buyer dependency concerns and improves the business's appeal to investors seeking passive income.

Diligence notes

Revenue Seasonality: Verify monthly cash flow patterns to understand weather-related demand fluctuations and ensure the business maintains positive cash flow during slower winter months. South Dakota winters could significantly impact volumes and the listing doesn't provide seasonal breakdown data.
Real Estate Validation: Confirm the $2M real estate allocation is reasonable through independent appraisal and verify zoning compliance for all current operations. The 0.68-acre site size and traffic counts need third-party validation given their importance to the investment thesis.
Competition Analysis: Conduct thorough competitive reconnaissance within the claimed 90-mile radius and research any planned competing developments. The competitive moat is a key value driver that needs verification through local market intelligence.
Equipment Condition: Inspect the tunnel wash equipment thoroughly since it drives the majority of volume and revenue growth, and verify maintenance records and remaining useful life. The 2022 installation should still be under warranty but operating hours and wear patterns need assessment.

Source

Originally listed on BusinessBroker.net. View original listing →