Tenancy Scenarios - 613 (Whole-House vs Reside-and-Rent-Rooms)
Two ways to house Jai’s 4-person cohort at 613, analyzed side by side. Not legal/tax advice — confirm insurance with your carrier and the lease packet with a CA landlord-tenant attorney.
- Scenario A — Whole-house rental (Ian off-site): Ian rents the entire dwelling to the cohort and does not live there. Arms-length landlord–tenant. (This is the prior analysis.)
- Scenario B — Reside & rent rooms (owner-occupied): Ian lives in the home and rents rooms to the cohort members (housemates). Owner-occupant + resident-landlord.
Side-by-side
| Dimension | A — Whole-house, off-site | B — Reside & rent rooms |
|---|---|---|
| Relationship | Arms-length landlord–tenant | Owner-occupant + resident-landlord (housemates) |
| Residents / cohort share | 4 of 4.25 ≈ 94.1% | 4 of 5 ≈ 80% (you full-time; you consume ~20%) |
| Your insurance | DP-3 landlord policy (switch off HO-3 — HO-3 claims can be denied when not owner-occupied) | HO-3 homeowner’s stays — but disclose the room rentals + add a home-sharing/roommate endorsement; DP-3 is not right when you live there |
| Cohort utilities (all-in) | ≈ $533/mo (94.1% of master) | ≈ $489/mo (cohort shares the fixed service charges with you) |
| Your personal utilities | $0 — fully recovered via rent | ≈ $122/mo (your ~20% of fixed + your own usage) |
| Lease form | One joint-&-several lease for the dwelling | Room/housemate agreement(s); you’re a resident party — set house rules + common-area terms |
| AB 1482 | SFR exemption (non-corp owner + verbatim notice) | Same standard SFR exemption (non-corp + verbatim notice). Owner-occupied ≤2-bedroom exemption N/A — cohort occupies 3 bedrooms (> 2). “Owner move-in” just-cause moot |
| Single-lodger shortcut (§1946.5) | N/A | Does NOT apply — that’s for one lodger; with four it’s full landlord-tenant + unlawful-detainer |
| Entry / privacy | Landlord entry rules (24-hr notice) | You’re a co-resident; shared common areas; less privacy, more day-to-day control |
| Tax (flag, not advice) | Full rental property (income, depreciation, expenses) | Partial rental of your primary home (rented-room %); possible partial impact on the capital-gains primary-residence exclusion; keeps primary-residence status |
| Control vs privacy | More privacy, less day-to-day oversight | More oversight, less privacy; you wear landlord + housemate hats |
Cost detail
The cohort is the same 4 people in both scenarios, so their variable usage (PG&E, water volumetric ≈ $254 master) is essentially unchanged. The difference is the fixed service charges (Greenwaste $115.77 + AT&T $95.95 + water service $100.92 = $312.64/mo), which are per-property:
- A: cohort carries 94.1% of everything → ≈ $533/mo all-in; you recover it in rent.
- B: you absorb ~20% of the fixed charges (and your own usage), so the cohort’s share drops to ≈ $489/mo (they save ~$44/mo), and you carry ≈ $122/mo of household utilities personally. The master bill is larger in B (you’re a fifth resident).
So the cohort pays modestly less in B; the real trade is privacy + tax simplicity (A) vs control + a homeowner’s-policy + shared costs (B).
Common to both scenarios
These don’t change between A and B:
- No local rent control / no local just-cause (unincorporated Santa Cruz County — state AB 1482 only); County Ch. 8.43 anti-retaliation applies.
- Habitability, security-deposit cap (1 month), 21-day return, required disclosures (Megan’s Law, bed bugs, flood/AB 646, smoke/CO, lead if pre-1978, shared-meter utilities).
- Require renter’s insurance from the cohort either way.
- Rio del Mar hazards — FEMA flood Zone AE at Aptos Creek (flood disclosure + likely flood insurance), coastal/seismic exposure.
- The AB 1482 single-family exemption needs the verbatim notice in the lease in both.
Recommendation lens
- Choose A if you value privacy, a clean full-rental tax treatment, and not co-living. It maximizes recovered rent (~$533/mo utilities included) but you switch to a DP-3 landlord policy and have less day-to-day oversight.
- Choose B if you want to live there / keep oversight and your homeowner’s policy in place (with an endorsement). The cohort pays a bit less; you take on ~$122/mo of personal utilities, less privacy, and a partial-rental tax picture.
Key assumptions & verify items
- Scenario B occupancy CONFIRMED: 5 total (4 cohort + you full-time) → cohort 80%.
- Bedrooms CONFIRMED: cohort occupies 3. Owner-occupied ≤2-bedroom AB 1482 exemption is N/A (3 > 2); the standard SFR exemption (non-corp + verbatim notice) is the route in both scenarios. Occupancy (4 in 3 bedrooms) is well within “2 per bedroom + 1.”
- Insurance is carrier-specific — confirm HO-3-with-endorsement (B) vs DP-3 (A) with your insurer; both exclude earthquake + flood (separate policies).
- Cost figures are estimates layered on the grounded master bills + the actual SqCWD/PG&E data; they firm up at real occupancy.
Sources
- Builds on Utility Cost Allocation in Leases (PG&E 613) and Landlord-Tenant Rights and Responsibilities (Rio del Mar, Unincorporated Aptos) (both grounded; see their Sources).
- Owner-occupied AB 1482 exemption: Civ §1947.12(d)(2) / §1946.2(e); single-lodger termination: Civ §1946.5; DP-3 vs HO-3 owner-occupancy distinction (insurance industry). Confirm specifics before the lease.