Property Development Due Diligence Checklist: The 2026 Complete Checklist

Property development due diligence is one of the most complex DD disciplines in any sector. Whether the project is ground-up development on raw land, value-add acquisition of an existing building, or land acquisition for future development, the diligence covers far more than financial validation. Entitlement risk (zoning, permits, neighborhood opposition), environmental exposure (Phase I/II ESA, wetlands, endangered species), geotechnical conditions, and utility availability all materially affect project feasibility.

This checklist covers all 9 functional categories of property development DD with the specific items developers, lenders, and capital partners review. It’s derived from the NAHB (National Association of Home Builders) Land Development Checklist, ULI (Urban Land Institute) standards, and 2026 commercial real estate practitioner consensus.

CT Acquisitions focuses on operating-business M&A rather than real estate development specifically. But many of our founder clients are simultaneously evaluating real estate development opportunities (industrial developers, multi-family operators, commercial developers) and the DD discipline overlaps with operating business diligence in important ways.

Title, Zoning, Environmental

Title & Survey

• Title commitment + title insurance policy + endorsements.
• Chain of ownership (30-50 year history typical).
• Easements: utility, ingress/egress, conservation, scenic.
• Encumbrances: liens, judgments, IRS liens.
• Restrictive covenants: CC&Rs, deed restrictions.
• Mineral rights, water rights, riparian rights, air rights.
• ALTA/NSPS Land Title Survey (current).
• Boundary disputes + encroachments.

Zoning & Entitlements

• Current zoning designation + permitted uses.
• Comprehensive plan / general plan alignment.
• Variance + Conditional Use Permit (CUP) history.
• Density: dwelling units per acre, floor area ratio (FAR).
• Height limits.
• Setback requirements (front, side, rear).
• Parking requirements.
• Landscape buffering requirements.
• Historic district / preservation overlay.
• Coastal zone, flood zone (FEMA), seismic zone designations.
• Entitlement timeline: planning commission, city council, neighborhood notification.

Environmental

• Phase I Environmental Site Assessment (ESA) per ASTM E1527 standard.
• Phase II ESA if Phase I identifies Recognized Environmental Conditions (RECs).
• Wetlands delineation + Army Corps of Engineers jurisdictional determination.
• Endangered species: USFWS consultation; Section 7 of Endangered Species Act.
• National Environmental Policy Act (NEPA) compliance if federal nexus.
• Section 106 historic preservation review.
• Underground storage tanks (USTs), registration, closure docs, contamination history.
• Asbestos, lead-based paint, PCB inspections for existing structures.

Geotech, Utilities, Engineering

Geotechnical & Soils

• Geotechnical investigation: soil borings, percolation testing.
• Soil bearing capacity.
• Groundwater table depth.
• Seismic hazard analysis (CA, Pacific Northwest).
• Slope stability if applicable.
• Karst / sinkhole risk (FL, TN).

Utilities & Infrastructure

• Water capacity + connection availability + connection fees.
• Sewer capacity + lift station requirements.
• Electric capacity + transformer requirements + service location.
• Natural gas availability.
• Telecom / fiber availability.
• Storm water management: detention/retention requirements.
• Traffic study + roadway improvements required.
• School impact fees + park impact fees + traffic impact fees.

Engineering & Architecture

• Civil engineering: site grading, drainage, infrastructure design.
• Architectural plans: building design, elevations, floor plans.
• Structural engineering.
• MEP (Mechanical, Electrical, Plumbing) engineering.
• Energy efficiency / LEED certification path.
• ADA compliance.
• Fire and life safety.

Construction, Financial, Tax

Construction & Permits

• General contractor selection: licensed, bonded, insured.
• Performance bond + payment bond.
• Insurance: builder’s risk, general liability, professional liability.
• Building permit requirements + timeline.
• Construction schedule + critical path.
• Change order management.
• Lien waivers process.
• Substantial completion + final completion definitions.
• Warranty terms.

Financial & Pro Forma

• Project pro forma: total project cost, hard costs, soft costs, financing costs, contingency (typical 5-10%).
• Capital stack: equity, mezzanine, senior debt, preferred equity.
• Construction loan terms.
• Permanent financing takeout.
• Sensitivity analysis: cost overruns, schedule delays, lease-up delays, rent compression.
• Stabilized NOI projections.
• Exit cap rate assumptions.
• Return metrics: IRR, equity multiple, yield-on-cost, cash-on-cash.

Tax & Incentives

• Property tax assessment + reassessment risk.
• Opportunity Zone status (federal QOZ).
• Historic tax credits (federal + state).
• New Markets Tax Credits (NMTC).
• Low-Income Housing Tax Credits (LIHTC) if multi-family.
• State-specific incentives: CA solar, TX property tax abatements, NJ ERG, etc.
• Cost segregation study (post-completion).
• 1031 exchange considerations.

Frequently Asked Questions: Property development due diligence

What is property development due diligence?

The systematic investigation of a property and project before acquisition or development commencement. Covers 9 categories: Title & Survey, Zoning & Entitlements, Environmental, Geotechnical, Utilities, Engineering, Construction, Financial, Tax.

What is a Phase I Environmental Site Assessment?

Standard environmental due diligence per ASTM E1527 standard: records review, site inspection, interviews. Identifies Recognized Environmental Conditions (RECs). Required for CERCLA “innocent landowner” defense.

When is a Phase II ESA required?

When Phase I identifies Recognized Environmental Conditions requiring physical sampling: soil, groundwater, vapor. Phase II involves invasive testing to quantify contamination.

What is “as-of-right” zoning vs CUP?

As-of-right uses are permitted in a zoning district without discretionary approval. CUP (Conditional Use Permit) is required for uses permitted only with discretionary approval, typically requires planning commission review and neighborhood notification.

How long does property development DD take?

Typical: 60-120 days for diligence with specialty consultants engaged. Complex projects (large land tracts, sensitive environmental, multiple entitlements) can take 6-12 months.

What are typical project cost contingencies?

Hard costs: 5-10% contingency. Soft costs: 10-15%. Larger contingencies (15-25%) for ground-up development on uncertain sites. Smaller (3-5%) for finishing a partially built project.

What are NAHB and ULI standards?

NAHB (National Association of Home Builders) publishes the Land Development Checklist standard. ULI (Urban Land Institute) publishes industry research on entitlement, development feasibility, and best practices.

What is the difference between development DD and operating business DD?

Operating business DD focuses on financial, operational, contracts, and existing operations. Development DD focuses on entitlement risk, environmental, geotechnical, utilities, and pro forma feasibility. Both share legal and tax workstreams.

What insurance does construction need?

Builder’s risk (covers structure during construction), general liability (third-party injury/property damage), professional liability (errors/omissions by architects/engineers), workers’ compensation, environmental impairment (if applicable).

Does CT Acquisitions advise on property development?

No, CT focuses on operating-business M&A. For property development specifically, consult specialty real estate brokers, development consultants, and ULI/NAHB members. Our role is operating-business sell-side.

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