What Published Warehouse Conversion Budgets Actually Tell You

A warehouse-to-pickleball facility conversion does not have a defensible national cost range in the available sources. A $138,000 Texas conversion estimate and a $6 million Detroit investment headline measure different things—not comparable low and high construction bids. To estimate your project, separate court installation, building conversion, property costs and opening cash, then price the work against a measured layout.

The calculator below divides a stated budget by its floor area and, optionally, its court count. Its default values come from the Texas filing. The result is a budget ratio, not a contractor rate or evidence that another warehouse can be converted for the same amount.

Enter your scoped budget and matching floor area; add a court count only if it belongs to that same budget.

Two Published Budgets Do Not Establish a Cost Range

The Texas Department of Licensing and Regulation’s record for LET’S PICKLEBALL at 1207 Price Plaza Drive in Katy describes an “Interior Built-out to convert the existing office warehouse to pickleball courts.” Registered January 27, 2025, it lists 8,152 square feet and an estimated cost of $138,000 for renovation/alteration. Its status is “Project Closed,” but the record does not provide a final expenditure statement or a court count. (TDLR project record)

That distinction limits what the figure can answer. It documents a registered estimate for a specified renovation project. It does not establish the operator’s total cash requirement, the price of the property, or the final cost of opening the business. The filing’s description also does not provide an itemized schedule showing which building systems or court components were included.

In Detroit, Crain’s September 24, 2026, headline reports a $6 million investment in a new facility. That headline alone does not establish which costs the figure includes. Separately, DBusiness describes redevelopment of a 40,000-square-foot industrial building at 3201 Franklin Street, with 60% for an eight-court Detroit Pickleball Club and the remainder for The Foundry, a commercial and community hub. This is a mixed-use redevelopment, not simply eight courts installed in an empty warehouse. (Crain’s headline; DBusiness project description)

Measure	Katy Conversion	Detroit Redevelopment
Published amount	$138,000 estimate	$6 million investment headline
Reported area	8,152 sq ft	40,000 sq ft
Pickleball allocation	Not separately stated	~24,000 sq ft, calculated from 60%
Courts	Not stated	Eight planned
Amount ÷ reported area	~$17/sq ft	~$150/sq ft
Main limitation	No final expenditure statement	No verified pickleball cost breakdown

The per-square-foot figures are arithmetic using the cited amounts and areas. They are not comparable construction rates, contractor quotations or a national cost survey. The Detroit calculation pairs a reported investment headline with the reported whole-building area; it does not establish that every dollar was spent on construction across that area.

Detroit’s club website, checked October 8, 2026, advertises a December opening and confirms plans for eight courts and climate control. Those are plans, not evidence of completed construction or final costs. (Detroit Pickleball Club)

Cost Per Court Requires a Matching Budget

Dividing Detroit’s $6 million headline figure by eight gives ~$750,000 per planned court. The arithmetic is valid, but calling the result “court construction cost” would be misleading. The numerator is an investment headline without an itemized budget, and the development includes substantial non-pickleball space.

Allocating 60% of the investment to the club would not fix that mismatch. A floor-area share is not evidence of a cost share. Commercial tenant space, shared building systems and playing areas need not cost the same amount per square foot. The sources do not supply a verified allocation that would isolate the club’s conversion cost.

Katy presents the opposite problem: the filing gives an amount and an area, but no court count. A per-court figure therefore cannot be calculated from that record. Inferring courts from the building’s size would add an unsupported assumption about its layout, supporting spaces and usable floor area.

For your own project, calculate cost per court as the stated scoped budget divided by the number of courts served by that budget. Name the scope beside the result. “Court installation per court” and “total facility opening budget per court” are different measures, even when both use the same court count.

A per-court ratio can summarize a finished budget. It cannot replace that budget. Shared reception space, toilets and building work belong somewhere in the accounting, but dividing them across courts does not turn them into court-installation expenses.

Separate the Budget Before Comparing Quotes

A useful conversion estimate should make its inclusions visible. The following categories are an accounting structure, not a claim that every warehouse needs every listed upgrade.

Budget Category	Work or Costs to Identify	Comparison Boundary
Property and lease	Acquisition, deposits, construction-period rent	Keep separate from physical conversion
Building conversion	Demolition, slab preparation, electrical, HVAC, plumbing, fire protection, accessibility, exits, acoustics	Identify existing systems retained
Court installation	Surface, lines, nets, sports lighting, dividers, padding	State courts and playing area served
Supporting spaces	Reception, toilets, storage, seating, pro shop, showers, food-and-drink areas	Include only the planned spaces

Professional and opening costs need their own accounting as well: design, engineering, permits, equipment, pre-opening staffing, contingency and working capital. A construction quote that excludes these is not necessarily incomplete for its purpose; it is simply not an all-in opening budget.

Landlord-funded improvements also need an explicit treatment. If they are included in the project’s work but excluded from the operator’s cash requirement, preserve that distinction. Otherwise, comparing an operator-funded budget with a total project budget can make one conversion appear cheaper without showing a cheaper building solution.

The same principle applies to contingency. Keep the quoted work distinguishable from the allowance for uncertainty. Do not present an allowance as a contractor’s fixed price, or silently add one project’s contingency while leaving another’s out. The available published figures do not provide a common contingency basis or a percentage to adopt.

Existing Building Conditions Determine the Work to Price

Ontario contractor Total Sport Solutions identifies slab condition, columns, overhead obstructions and HVAC as important conversion checks. Octopus Build Group also identifies plumbing, electrical capacity, acoustics and amenities as cost variables. Their guidance helps identify scope, but it is not a U.S. price benchmark. (Total Sport Solutions; Octopus Build Group)

For an estimate, translate those checks into priced work or documented exclusions. A slab described as suitable for reuse should not carry the same assumed preparation scope as one requiring remediation. An existing HVAC system should not be counted as adequate merely because equipment is present; the proposed operation needs its own assessment.

Columns and overhead obstructions affect the layout before they affect the budget. A warehouse may have enough gross area while still lacking the unobstructed arrangement needed for the proposed courts. Pricing the desired court count before confirming that arrangement can produce a detailed estimate for a layout that does not work.

Amenities create a separate scope choice. A reception area and storage provision should be distinguished from a plan that also includes showers, a pro shop or food-and-drink space. The published Katy estimate does not itemize those choices, and Detroit’s mixed-use plan cannot be reduced to a courts-only specification.

The next useful evidence is therefore a building-specific assessment and priced work packages—not another headline from a different property. Where a condition has not been assessed, show it as unresolved rather than assigning it a cost borrowed from an unrelated project.

Local Approval Costs Must Match the Jurisdiction

Detroit’s commercial permit guidance requires architectural plans sealed by a state-registered architect or engineer and a certificate of occupancy for a change of use. Those requirements belong in the scope of a Detroit project. Requirements elsewhere should be checked with the relevant jurisdiction rather than inferred from Detroit’s process. (City of Detroit)

A budget should identify who is responsible for the applicable design, approval and occupancy work, and whether those charges are included in the quoted amount. That is different from assuming every warehouse conversion faces identical requirements or fees.

Neither published project supplies a transferable permit-cost allowance. The available sources also do not establish a common approval schedule. Keep unconfirmed fees and timing visible as unknowns until the relevant authority and project team establish them.

Confirm Court Capacity Before Applying a Unit Cost

USA Pickleball’s 2026 rulebook lists 34 × 64 feet for new-construction playing surfaces. That includes the lined court and surrounding playing area: 2,176 square feet per court, or 17,408 square feet for eight, before separately allowing for supporting spaces and circulation. Gross warehouse area alone therefore cannot establish capacity. (2026 official rulebook, Sections 2–3)

Those dimensions are a layout reference for the specified new-construction playing surfaces, not proof that a particular conversion can accommodate a given number of courts. A measured plan still has to account for the actual building, including its columns, obstructions and the spaces needed outside the playing areas.

Detroit’s calculated ~24,000-square-foot pickleball allocation and its eight planned courts describe that project’s reported program. They do not establish an area-per-court requirement for every facility. Likewise, Katy’s 8,152 square feet cannot be converted into a sourced court count simply by dividing by a playing-surface allowance.

Use the facility-spacing guide to examine the layout allowance. Once the court count is supported by a plan, it becomes a meaningful denominator for a scoped budget rather than a number selected to make the project look affordable.

A Defensible Estimate States Both Scope and Denominator

For a conversion cost per square foot, use the included conversion budget divided by the floor area covered by that work. State whether the denominator is the whole building, the leased premises, the pickleball allocation or the actual work area. A precise-looking ratio remains ambiguous if that boundary is missing.

Keep property costs and opening cash alongside the conversion estimate, not hidden inside or silently omitted from it. Ask for explicit exclusions, identify unresolved building work, and retain the distinction between an estimate, a quoted price and final expenditure. Katy supplies the first of those; the Detroit headline does not supply an itemized construction measure.

The published evidence supports two project descriptions and their arithmetic—not a U.S. warehouse conversion price range. A measured layout and a scope-matched set of prices are the basis for your decision. Once a credible budget and court count exist, the club revenue and occupancy model can test whether the planned operation can support them.