3660 20th St

San Francisco, CA 94110

$1,350,000B+

8 bd · 5.0 ba · 3,862 sqft · Built 1907 · MultiFamily · Active · 54 DOM

Cashflow @ list (25.0% down · 7.5%)

• Estimated rent: $18,415/mo
• Mortgage (P&I): −$7,080
• Tax + insurance: −$2,009
• HOA: −$0
• Vac / Maint / Mgmt: −$3,867
• Net cashflow: $5,460/mo
• Annual: $65,517/yr
• Cap rate: 11.15%
• Cash-on-cash: 17.33%
• DSCR: 1.77
• 1% rule: 1.36%
• Cash to close: $378,000

Investor read

• This is a 8-bed/5.0-bath multifamily listed at $1.35M.
• At list price, monthly cash flow is $5k ($66k/yr) — positive.
• The deal already cash-flows at list — no discount required.
• Meets the 1% rule at list price ($18k rent vs $1.35M).
• It's been on market 54 days — a 3% lower offer ($1.31M) is reasonable based on typical stale-listing flexibility.
• Recommended offer: $1.31M (3.0% below list) — sets the bar for market timing.
• Local home prices are declining (-3.0%/yr); year-one equity from $9k of loan paydown is wiped out by about $40k of value loss. Plan a longer hold.
• Location reads 76/100 on livability (#90 in CA, #3,143 nationally) — a middle-class / working-renter tenant base. Strengths: amenities A+, commute A+, employment A+; Watch: crime F, cost of living F.
• San Francisco Unified (urban): math 50% / reading 56% proficiency, ranked #322 of 1,400 in CA (top 23%) — acceptable for families but not a draw, mixed tenant base, ~2y average lease.
• Watch-outs: built in 1907 — expect roof / HVAC / electrical / plumbing capex.
• Market conditions: Rents rising fast (+14.5%/yr); 161 active listings in the ZIP; high-income renter base; 750 units permitted in San Francisco County in 2024 (688 in 5+ unit buildings).
• San Francisco County population projected at +39% by 2050 — long-run rental-demand tailwind backs the buy-and-hold thesis.
• 3 sale attempts since 21y ago with the ask held roughly flat each time — persistent listings suggest the price (not the market) is what's stuck; bring a comps-based counter.
• At projected returns (-3.0% appreciation + 8.0% rent growth), your $378k cash investment doubles in ~6 years — after that, you're playing with house money.
• Cap rate 11.1% vs local median 2.1% in San Francisco — top-decile yield for the area; either an underpriced asset or a hidden risk that comps aren't pricing in. Stress-test before assuming the spread holds.
• At $18,415/mo this rent would consume 140% of the median local household income ($158k/yr) (locally 2732% of renters already pay >50% of income on rent) — very limited rent-growth headroom before tenants either downsize or default.

Questions for listing agent

• It's been on market 54 days. Have you received any prior offers? Is the seller open to a 3% concession, seller financing, or rate buy-down credit?
• Built in 1907 — when were the roof, HVAC, electrical panel, plumbing, and water heater last replaced?
• Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
• Schools are B-rated — typically a magnet for longer-tenancy family renters. What's the average tenant stay here, and is there a school-zone premium baked into asking?
• Crime grade is F in this area — have there been break-ins, vandalism, or insurance claims at this property in the last 3 years? What carrier currently insures it and at what premium?
• What's the average days-on-market for RENTAL listings here right now (not sales)? A rising rental-DOM trend means longer vacancies and softer asking-rent achievability than the comps imply.
• What's the recent tenant-quality profile in this submarket — average credit score on applications, eviction rate, late-payment / NSF rate, and stable-employment percentage? A property-management company in the area should have these aggregated.
• How much new apartment / multifamily construction is in the pipeline within 1–3 miles? Heavy new supply (>2% of stock underway) typically softens rents 12–24 months out; light construction supports rent growth.