Building a Bulletproof Due Diligence Checklist for California Equestrian Properties — Essential reviews for zoning, soil, water, and facilities

5/21/2026 • By Alan Eidinger

You're buying a 25-acre equestrian property in Northern California. House, barn, arena, fencing, pasture, water system. Seller says it's a "turnkey horse boarding operation."

You skip the detailed due diligence—it looks fine, neighbor has horses, how hard can it be?

Post-purchase discovery: zoning requires conditional use permit for animal boarding (six-month delay). Soil test shows high clay content and poor drainage (arena will be muddy most of year). Water rights are seasonal (well dries up June-August). Fencing doesn't meet equestrian safety standards (you'll need $30k in upgrades).

Now your operating plan is delayed, your costs are higher, and your financing is stretched.

Here's the comprehensive due diligence checklist that prevents this.

The Zoning And Compliance Section**

☐ Current zoning designation (call county planning department)
☐ Permitted uses without permit (farming? animals? commercial activities?)
☐ Uses that require conditional use permit
☐ If boarding/training is your plan: does it need CUP? (If yes, get it before buying)
☐ Any conservation easements or restrictions on property
☐ SGMA groundwater basin designation (if applicable)
☐ Environmental restrictions (wetlands, endangered species, sensitive habitat)
☐ Prior code violations or enforcement actions on property
☐ Local noise or odor ordinances that affect animal operations

The Soil And Site Section**

☐ Soil composition test (clay, sand, silt balance)
☐ Drainage assessment (does water pool in pasture or arena? or drains well?)
☐ Topography survey (flat pasture vs. slopes that affect grazing and facility design)
☐ Arena soil current condition (hard-packed? dusty? wet? safe for horses?)
☐ Hay production potential (can you grow hay on-site or must you buy?)
☐ Erosion issues (gullies, rills, evidence of water damage?)
☐ Chemical contamination history (any ag chemicals or industrial use on property?)

The Water And Utilities Section**

☐ Water source (well, spring, municipal connection, surface water)
☐ Water testing (bacteria, pH, mineral content safe for horses?)
☐ Year-round reliability (does well run dry in summer? Is spring seasonal?)
☐ Water flow rate (gallons per minute—sufficient for horse count and facility?)
☐ Documented water rights (if surface water or basin-dependent, do you have rights?)
☐ SGMA allocation status (if groundwater, what's your sustainable allocation?)
☐ Septic system condition (if residence on property, is septic adequate and compliant?)
☐ Electrical system capacity (enough for arena lighting, water systems, future upgrades?)

The Facilities And Infrastructure Section**

☐ Barn condition (age, structural integrity, need for repairs/upgrades?)
☐ Stall count and layout (do stalls meet equestrian standards? Size, ventilation?)
☐ Hay storage (adequate capacity for winter feed? Weatherproof?)
☐ Arena condition (size, surface condition, footing material, drainage)
☐ Arena meet standards? (minimum 120'x60' for safe riding, or too small?)
☐ Fencing integrity (safe for horses? Proper height? Gaps or weak spots?)
☐ Pasture fencing all around property (or only partial?)
☐ Gates and access points (safe, secure, allow easy entry/exit for emergency?)
☐ Facility lighting (arena lit? Barn lit? Night operations safe?)
☐ Roundpen or lunging area (if you plan to offer training services)
☐ Trailer parking and turnaround space (large enough for horse trailers to enter/exit?)

The Operational Feasibility Section**

☐ Current boarding capacity (how many horses maximum?)
☐ Current occupancy (how many horses boarding now?)
☐ Boarding rate market comparison (what do neighboring facilities charge?)
☐ Operating costs documentation (feed, farrier, vet, labor, utilities—what has current owner spent?)
☐ Labor availability (can you hire barn help, or is it remote/hard to find workers?)
☐ Access road condition (can horse trailers get to facility safely?)
☐ Neighboring properties (are neighbors horse-friendly, or will they complain about activity?)
☐ Liability exposure (what's the typical insurance cost for this operation?)

The Financial Viability Section**

☐ Prior owner's income (last 3 years of tax returns showing boarding revenue)
☐ Operating cost baseline (actual expenses from prior owner)
☐ DSCR projection (will boarding income support the loan?)
☐ Seasonal income pattern (is income steady year-round, or seasonal?)
☐ Growth potential (can you expand boarding? Add lessons? Add training?)
☐ Capital improvement needs (what will you need to invest to grow?)
☐ Break-even point (how many horses at what rate to cover costs and debt service?)

The Legal And Liability Section**

☐ Title search (any liens, easements, or restrictions on property?)
☐ Equine liability waiver precedents (what do neighboring facilities use?)
☐ Insurance requirements (what does your insurance company require for boarding facility?)
☐ Horse-related accidents history (has this property had liability incidents? Ask neighbors.)
☐ Local liability laws (California vs. other states—does California impose strict liability for horse-related injuries?)

How To Use This Checklist**

Step 1: Complete before making offer (weeks 1-2)**

Before you commit to purchase, hire professionals to complete the checklist items that require expertise (soil test, water testing, facility inspection). This costs $2-5k but prevents $50k+ mistakes.

Step 2: Make offer contingent on due diligence (weeks 2-4)**

Your offer should include: contingent on satisfactory completion of due diligence. If due diligence reveals problems, you can renegotiate price or walk away.

Step 3: Share findings with lender (week 4)**

Your lender will care about: zoning (does your use require permits?), water (is supply reliable?), soil (will arena be usable?), and facilities (do they support the income you're projecting?).

Walking through the checklist with your lender early prevents financing surprises.

Red Flags That Kill Deals**

Zoning issue: boarding requires CUP and seller won't pay for it → you're delayed 6+ months
Water issue: well dries up in summer → you can't board 4 months/year
Soil issue: arena floods in winter → operations disrupted 3-4 months/year
Facility issue: barn structure is unsafe → you need to rebuild ($100k+)
Liability issue: property has history of horse-related injuries → insurance rates are very high

Any of these issues can make the property unworkable or much more expensive than anticipated. Discover them before buying, not after.

Ready to complete equestrian due diligence for your property? Call (408) 260-5900 or apply for an equestrian property consultation. We'll help you navigate the checklist and ensure the property actually works for your operation.