Mid-term & furnished rentals in San Diego: the 30-night strategy.
Why 30+ night furnished stays are the fastest-growing corner of the rental market, how the 30-night rule keeps San Diego mid-term rentals free of STRO licenses and transient occupancy tax, and how investors can underwrite the demand from nurses, the military, and biotech.
Growth in U.S. nights stayed in 28+ day reservations from 2019 (20M nights) to 2025 (46M), per the first Furnished Finder and AirDNA market report, published January 2026.
San Diego's regulatory threshold. Stays of 30 consecutive nights or more are mid-term or long-term rentals: no STRO license, no Transient Occupancy Tax.
Share of North American Airbnb bookings that are monthly stays (28+ nights), the platform's fastest-growing segment, reported by Airbnb CFO Dave Stephenson in 2025.
Typical monthly San Diego housing stipends for travel nurses, among the highest in California after Los Angeles and San Francisco, per 2026 industry data.
Mid-term rentals are furnished stays of 30 nights to roughly 12 months, and in San Diego they occupy a regulatory middle ground that short-term rental investors have only started to exploit: no STRO license, no transient occupancy tax, and a demand base anchored by the city's hospitals, military bases, and biotech corridor.
The numbers behind the category are striking. U.S. nights stayed in 28+ day reservations grew 136% between 2019 and 2025, from 20 million to 46 million, according to the first Furnished Finder and AirDNA market report published in January 2026. Over the same period, traditional under-28-day short-term rental nights grew just 52%. Airbnb reports that roughly 23% of North American bookings are now monthly stays, making long stays the platform's fastest-growing segment.
San Diego is one of the strongest markets in the country for this demand. Five major hospital systems, the nation's largest concentration of military personnel, and a dense biotech and life-sciences corridor generate a steady stream of tenants who need furnished housing for one to six months: travel nurses, relocating service members, lab scientists, corporate transferees, and project crews.
The regulatory advantage is just as important. Under San Diego's Short-Term Residential Occupancy (STRO) ordinance, a stay of 30 consecutive nights or more is not a short-term rental at all. It requires no STRO license, faces no license caps, and is exempt from the Transient Occupancy Tax that applies to stays of 30 days or less. The operator still registers for business taxes, and state and local tenant protections apply, but the licensing bottleneck that constrains the nightly STR market does not reach the mid-term segment.
This guide covers the demand drivers, the exact regulatory boundaries of the 30-night rule, current furnished monthly rate benchmarks, the strategies investors are using, and a five-step due diligence checklist for adding a mid-term channel to a San Diego portfolio. For the full rules on licensed nightly rentals, see our San Diego short-term rental regulations guide.
Who is renting furnished units for 30 to 120 days in San Diego?
Travel Nurses & Hospital Systems
San Diego has five major hospital systems (Sharp, Scripps, Kaiser, UCSD Medical Center, and more), making it one of the highest-demand travel-nurse markets in the United States. Healthcare jobs grew about 6.6% in 2025 even as tech and business services fell. Travel nurses on 13-week contracts typically gross $2,400 to $2,900+ per week, and their San Diego housing stipends run roughly $3,200 to $3,800 per month. That is a tenant with corporate-grade rental backing, working a predictable schedule, who needs a furnished home for exactly the 30 to 120 day window mid-term rentals serve.
Military & Defense Relocations
San Diego hosts the largest concentration of military personnel in the country: Naval Base San Diego, Camp Pendleton, MCAS Miramar, and a dense ring of defense contractors around the bay. Permanent-change-of-station (PCS) moves create steady demand for furnished 30 to 180 day housing while families search for permanent homes. Providers consistently site units near the bases for exactly this booking pattern.
Biotech, Life Sciences & UCSD
The Torrey Pines, Sorrento Valley, and La Jolla corridor around UC San Diego books extended stays in month increments. Dozens of office buildings in Torrey Hills, Del Mar Heights, and Sorrento Mesa have converted to biotech wet-lab space, fueling project-based moves for scientists, engineers, and consultants. These tenants pay a premium for furnished, move-in-ready units near the lab.
Corporate Relocation, Crews & Remote Workers
Beyond healthcare and defense, San Diego draws relocating corporate employees, film and convention crews near the Convention Center, construction project teams, insurance and displacement stays, and remote workers consolidating travel. National providers like Blueground, Key Housing, and HouseStay all maintain San Diego inventories. The result is a diversified demand stack that does not collapse with any single industry.
What changes at 30 consecutive nights in San Diego?
The line that separates a short-term rental from a mid-term or long-term rental in San Diego is 30 consecutive nights of occupancy. Everything below that line is a short-term residential occupancy. Everything at or above it is not, which is the entire regulatory foundation of the mid-term strategy.
| Requirement | Short-Term (under 30 nights) | Mid-Term (30+ nights) | Long-Term (12+ months) |
|---|---|---|---|
| STRO License (City of San Diego) | Required for all stays under 30 consecutive nights | Not required for stays of 30+ consecutive nights | Not required |
| Transient Occupancy Tax (TOT) | Due on nightly stays; tiered city rates of 11.75%–13.75% | Exempt: 30+ consecutive nights is long-term occupancy under SDMC §35.0103 | Exempt |
| San Diego Business Tax Certificate | Required | Required | Required |
| Rental Unit Business Tax (annual, due March 1) | Required | Required | Required |
| AB 1482 rent cap (statewide) | Applies to covered units | Applies to covered units | Applies to covered units |
| Just-cause eviction protections | Transient stays excluded | Fixed-term leases of 3 months or less excluded; longer mid-term tenancies protected from day one | Protected after tenancy forms |
How do AB 1482 and San Diego's Tenant Protection Ordinance apply?
Statewide, AB 1482 (the Tenant Protection Act) imposes a rent cap on covered units, limiting annual increases to 5% plus the local CPI, with a 10% maximum. The cap applies to covered units regardless of stay length, so a mid-term renewal on the same unit must respect it. Just-cause eviction protections under AB 1482 attach only after a tenant has continuously occupied the unit for 12 months or more, which is why short corporate stays are not caught by state just-cause rules.
Furnished or unfurnished makes no difference to these protections. California's security deposit cap under AB 12 (one month's rent) also applies to furnished units, which matters when you are furnishing a unit fully and would like a larger deposit for the furniture investment.
San Diego's own Residential Tenant Protection Ordinance draws a finer line. A "tenancy" under the ordinance is occupancy of more than 30 days, but a fixed-term lease of 3 months or less, including renewals up to roughly a year, is not a tenancy, so city just-cause eviction rules do not apply to it. A mid-term stay longer than 3 months, by contrast, is a protected tenancy from day one.
The practical takeaway: keep mid-term leases at 3 months or less where operational flexibility matters, document every extension in writing, price renewals within the AB 1482 cap on covered units, and consult a California landlord-tenant attorney before relying on these distinctions in any specific situation. The rules interact, and penalties for getting them wrong are expensive.
What do furnished units rent for monthly in San Diego?
Mid-term rates are quoted all-in: rent plus utilities, internet, and furnishing. The ranges below come from active San Diego listings on corporate housing and travel-nurse platforms in 2026, not from an official market report, so use them as underwriting context rather than a price sheet.
For context, the citywide San Diego short-term rental market shows a $336 average daily rate at 61% occupancy across approximately 15,964 active listings (mid-August 2026). Mid-term monthly rates of $2,200 to $4,000+ for a furnished 1-BR or 2-BR compare favorably with stacking nightly bookings through the slower winter months, when STR revenue for a typical unit can dip toward roughly $2,700 per month.
How are San Diego investors using the mid-term channel?
The 30-Night Hybrid Model
Run the unit as a licensed short-term rental in peak season and drop to 30+ night furnished stays in the slower winter months, when STR occupancy dips and a long booking stabilizes cash flow. Because 30+ night stays sit outside the STRO ordinance, the hybrid owner never needs a second license for the off-season period.
The Bridge Strategy
In a high-vacancy rental market, a furnished mid-term listing is a bridge between tenant placements. Instead of an empty unit generating zero income between long-term tenants, a 30 to 90 day furnished stay at a premium rate covers the gap and often beats the cost of concessions, marketing, and vacancy.
The Licensed-Asset Approach
If the property already holds a valuable STRO license, keep it active and layer mid-term bookings on top during off-peak periods. The license adds resale value and preserves maximum flexibility, while mid-term stays smooth the seasonal revenue curve without sacrificing the license.
The Dedicated Mid-Term Property
For properties where nightly STRs are capped or impractical (including HOA or CC&R-restricted communities), a dedicated furnished mid-term program targets travel nurses near hospital clusters, defense families near bases, and biotech teams near Sorrento Valley.
Five steps before you list a 30+ night stay.
Confirm the 30-night math on every booking
The STRO and TOT exemptions apply to occupancy of 30 consecutive nights or more. Require a 30-night minimum in your listing settings and lease language. A guest who books 30 nights but departs early can trigger TOT on the nights actually stayed, so collect and document the full term upfront.
Register the business taxes that do apply
Mid-term rentals are not taxed as transient occupancy, but the operator still needs a San Diego Business Tax Certificate and must register for the annual Rental Unit Business Tax, generally due March 1, with an owner-occupied unit exemption available. Confirm your status directly with the City Treasurer before your first booking.
Understand AB 1482 and the city Tenant Protection Ordinance
Mid-term tenants in covered units get AB 1482 rent-cap protection, and fixed-term leases longer than three months form a protected tenancy with just-cause eviction protections from day one under San Diego's ordinance. Structure leases at three months or less where flexibility matters, and price renewals within the cap.
Verify insurance for furnished, business-use occupancy
A standard landlord policy may not cover furnished rentals with corporate, medical, or military guests. Confirm the policy covers furniture and electronics, short-term-and-mid-term-style occupancy, liability for business use, and any HOA or CC&R requirements, which often impose their own minimum-stay rules.
Price to the channel, not to the night
Corporate channels (CHBO, corporate housing networks, travel-nurse platforms) quote monthly all-in rates that include utilities, internet, and furnishing. Compare your all-in monthly cost against the benchmark ranges in this guide, seasonally adjust the 30 to 90 day rate, and leave room for turnover cleaning between guests.
Up from 20M in 2019, +136%, while under-28-day STR nights grew 52% over the same period (Furnished Finder / AirDNA, Jan 2026).
Citywide ADR of $336 and 61% occupancy across all platforms, per AirDNA data cited in our STR guide.
Context for why 30+ night monthly rates of $2,200–$4,000+ compare favorably to stacking nightly bookings in slower months.
Frequently asked questions.
Do I need an STRO license to rent my San Diego unit for 30+ nights?
Do I need an STRO license to rent my San Diego unit for 30+ nights?
Do I pay Transient Occupancy Tax on mid-term stays in San Diego?
Do I pay Transient Occupancy Tax on mid-term stays in San Diego?
How does AB 1482 apply to a 3-month furnished rental?
How does AB 1482 apply to a 3-month furnished rental?
What does a furnished unit rent for monthly in San Diego in 2026?
What does a furnished unit rent for monthly in San Diego in 2026?
Who are the typical mid-term tenants in San Diego?
Who are the typical mid-term tenants in San Diego?
Can I run a hybrid short-term / mid-term rental model?
Can I run a hybrid short-term / mid-term rental model?
Are mid-term rentals subject to rent control in San Diego?
Are mid-term rentals subject to rent control in San Diego?
Build the 30-night channel into your San Diego portfolio.
Whether you are converting an existing short-term rental, filling a vacant unit, or buying a furnished property near a hospital cluster or military base, the San Diego Investor Guide team can help you model the numbers, structure the leases, and connect you with the right management support.