Retail Real Estate Underwriting for REPE

Retail real estate underwriting sits at the intersection of real estate and operating business analysis — because a retail asset's value depends not just on rent, but on whether tenants can actually generate enough sales to pay it. Strip centers, power centers, and grocery-anchored shopping centers each have distinct lease structures, tenant mixes, and risk profiles that differ sharply from multifamily or industrial. This guide covers the retail-specific metrics, lease types, and underwriting traps that show up in REPE interviews.

Retail property types

| Type | Tenant Mix | Typical Lease | Key Metric | |------|-----------|---------------|------------| | Grocery-anchored strip | Supermarket + inline shops | NNN, 10–20 year anchors | Sales/SF productivity | | Power center | Big-box (Target, Home Depot) | NNN, 10–15 years | Credit quality, co-tenancy | | Neighborhood strip | Local/service tenants | NNN or gross, 5–10 years | Occupancy cost ratio | | Regional mall | Department stores + inline | Complex (CAM pools, overage) | Sales/SF, occupancy cost | | Single-tenant NNN | One credit tenant (CVS, Walgreens) | Absolute NNN, 15–25 years | Tenant credit rating | | Mixed-use retail | Retail base + residential/office | Varies | Component valuation |

Most REPE interview cases focus on strip centers or single-tenant NNN — the most modelable formats.

Revenue build: base rent and overage

Base rent

Annual Base Rent = Leased SF × Rent per SF per Year

Retail rents are quoted per SF per year (like industrial). For multi-tenant centers, build a tenant-by-tenant rent roll:

| Tenant | SF | Rent/SF | Annual Rent | % of Total | |--------|-----|---------|-------------|-----------| | Anchor (grocery) | 45,000 | $12.00 | $540,000 | 45% | | Inline Tenant A | 3,500 | $28.00 | $98,000 | 8% | | Inline Tenant B | 2,800 | $32.00 | $89,600 | 7% | | ... | | | | | | Total | 85,000 | Blended $14.50 | $1,200,000 | 100% |

Percentage rent (overage)

Many retail leases include a breakpoint — if tenant sales exceed a threshold, the landlord receives a percentage of sales above the breakpoint:

Percentage Rent = (Tenant Sales − Breakpoint) × Overage Rate

Example: breakpoint at $500/SF, tenant does $600/SF, overage rate = 5%

Overage = ($600 − $500) × 5% × 10,000 SF = $50,000

Percentage rent is upside, not base case — underwrite on base rent and treat overage as optional upside unless historical overage is consistent.

Vacancy and credit loss

EGI = (Base Rent + Percentage Rent + CAM Reimbursements) × (1 − Vacancy) × (1 − Credit Loss)

Stabilized retail: 5%–10% vacancy allowance. Single-tenant NNN with investment-grade credit: 0% vacancy (but model rollover at lease expiration).

Expense structure: NNN vs. gross vs. modified gross

NNN (most common for institutional retail):

Landlord NOI ≈ Base Rent − Management Fee (2%–4%) − Reserves ($0.20–$0.40/SF)

Tenant pays taxes, insurance, CAM. Landlord expenses are minimal.

Gross / Modified Gross: Landlord pays some or all operating expenses. Common for older centers or weak markets where landlords must subsidize tenants.

CAM (Common Area Maintenance) reconciliation: In multi-tenant retail, CAM is billed to tenants as a pass-through. The landlord collects CAM reimbursements and pays actual CAM expenses — the difference is a reconciliation item, not profit.

CAM Reimbursement Income ≈ Actual CAM Expenses (pass-through)

Model CAM as revenue and expense separately; net CAM should be approximately zero on a stabilized center.

Key retail metrics interviewers test

Occupancy cost ratio

Occupancy Cost = (Rent + CAM) ÷ Tenant Sales

Healthy range: 6%–12% for most retail categories. Above 15% signals tenant stress — they may not renew. Grocery anchors run lower (3%–5%); inline specialty runs higher (10%–15%).

Interviewers ask: "The anchor's occupancy cost is 14%. What does that tell you?" Answer: the tenant is paying a high percentage of sales toward rent — renewal risk is elevated unless sales are growing.

Sales per SF (productivity)

Sales/SF = Tenant Annual Sales ÷ Tenant SF

Benchmark against category averages:

• Grocery: $400–$700/SF
• Quick-service restaurant: $300–$600/SF
• Apparel: $200–$400/SF
• Service (salon, dry cleaner): $150–$300/SF

Low productivity relative to category = tenant at risk of closure or non-renewal.

Weighted average lease term (WALT)

Same concept as industrial — rent-weighted average remaining lease duration. Long WALT (7+ years) with credit anchors supports lower cap rates. Short WALT (under 3 years) = rollover risk.

Co-tenancy clauses

Many inline tenants have co-tenancy provisions: if the anchor vacates, inline tenants can reduce rent or terminate. This creates a cascade risk — losing the anchor can trigger rent reductions across the center.

Always ask about co-tenancy clauses in due diligence. Model an anchor vacancy scenario explicitly.

Underwriting a grocery-anchored strip center

The most common REPE retail case study format:

Step 1: Build tenant rent roll (SF, rent/SF, lease expiration, sales/SF if available)

Step 2: Calculate EGI with vacancy allowance on inline tenants (anchor assumed to remain)

Step 3: NOI = EGI minus management fee and reserves (NNN structure)

Step 4: Size debt on in-place NOI (LTV 65%–70%, DSCR 1.25x+)

Step 5: Exit at forward NOI capitalized at market retail cap rate (+25–50 bps vs. entry)

Step 6: Stress-test anchor vacancy scenario (inline rent reductions from co-tenancy)

Single-tenant NNN retail (credit tenant)

The simplest retail underwriting — and a common interview format:

Property: CVS pharmacy, 15,000 SF, NNN lease, 12 years remaining
Rent: $25/SF = $375,000/year
Tenant: Investment-grade (Baa2/BBB)
Cap Rate: 5.5%–6.0%
Value: $375,000 ÷ 5.75% = $6.5M

The entire analysis is tenant credit + remaining lease term + rent vs. market. No vacancy, no CAM complexity. The risk is binary: tenant renews or doesn't.

Common interview questions

"How is retail different from multifamily?" Fewer tenants (often one anchor + inline), NNN lease structure, revenue tied to tenant sales productivity, co-tenancy clauses, and percentage rent. Tenant credit and sales/SF matter as much as the real estate.

"What is occupancy cost ratio?" Rent plus CAM divided by tenant sales. Measures whether the tenant can afford the space. Above 12%–15% signals renewal risk for most categories.

"What happens if the anchor leaves?" Inline tenants may trigger co-tenancy clauses (rent reduction or termination). Revenue drops from both the anchor vacancy and inline rent cuts. Model this as a downside scenario.

"How do you value a single-tenant NNN property?" Capitalize the NNN rent at a market cap rate adjusted for tenant credit and remaining lease term. Investment-grade tenant with 15+ years = tight cap (5%–6%). Non-investment-grade with 3 years = wide cap (7%–9%+).

The takeaway

Retail REPE underwriting adds tenant sales analysis and co-tenancy risk on top of the standard cap rate bridge. The interview skill is building a tenant-level rent roll, calculating occupancy cost ratios, and stress-testing anchor vacancy — not just capitalizing a blended NOI figure. Master the NNN structure and the anchor/inline dynamic, and retail cases become one of the more structured asset classes in REPE interviews.