Peninsula guide · Tier A · Rank #13 of 28
House hacking in San Carlos (Citywide, ECR + Industrial Rd corridors).
The strongest catalyst stack in what was the B block: Alexandria's life-science mega campus, two built TODs, and electrified in-ZIP Caltrain, promoted to A in July 2026 against the metro's hardest price at a ~$2.7M median.
Status check: Promoted B to A on 2026-07-16: the City Council approved a substantial new expansion phase in 2026 (25 acres, 3 phases over 15 years, a $43M community-benefit package), well beyond the earlier two-built-TODs framing, and Vaxcyte signed a 10-year lease renewal. All three jurors held it short of S on the ~$2.7M median. This ZIP was B-tier at synthesis, so it carries less narrative depth than the others; its Section 8 underwriting row is absent from the index and none is invented here.
What's actually happening in 94070
- Operating, expansion entitled
Alexandria Center for Life Science mega campus: ~739K RSF operating at 97.4% occupancy (Vaxcyte, CARGO), with a ~2.1M RSF future program and an entitled ~25-acre District for Science and Technology. SM Daily Journal
- Approved 2026
New 2026 approval at 987 Commercial St: a 25-acre, 3-phase campus on a 15-year horizon with a $43M community-benefit package; anchor tenant Vaxcyte signed a 10-year, ~260,000 sq ft lease renewal. BioSpace
- Delivered / approved
Two built TODs, Trestle (202 units) and Wheeler Plaza (109 condos), plus electrified in-ZIP Caltrain and 251 approved units at 11 ECR. City of San Carlos
The numbers
- Median price
- ~$2.7M (Redfin, +3.8% YoY)
- Market rent
- not found at ZIP level (San Mateo city / county-band proxy, flagged in the index)
- Property tax (San Mateo County)
- 1.26% combined effective average (range 1.08–1.52% by tax-rate area; purchase resets the assessed basis to sale price)
- Per-bed rent band
- No published band (see rationale)
- ADU rent band
- No published band
- Whole-home rent band
- No published band
- Underwriting vacancy
- No published band
- Appreciation scenarios
- No published band
The metro's hardest price; the index graded it B on affordability until the 2026-07-16 promotion. Appreciation basis: The index's Section 8 table predates the 2026-07-16 promotion and carries no 94070 row; bands stay unpublished until the next full synthesis rather than being invented. Rent bands are city-level medians; confirm the specific parcel before trusting any of them. Run your own scenario in the calculator.
Buildings we underwrote in 94070
2 buildings in 94070 carry a record. 0 beat renting and index funds; the rest did not. Every row links to its own page, with the numbers it was scored on.
| Property | At our defaults | Status |
|---|---|---|
| 577 Laurel St 5 units · $4,200,000 | −$3,850,741 S&P 500 | Underwritten — the index wins at our defaults |
| 64 Laurel St 2 units · $5,500,000 | −$6,053,040 S&P 500 | Underwritten — the index wins at our defaults |
The full board shows every region's current week; this table is every record we hold for 94070, newest basis first.
The house-hack angle
A durable-appreciation watch ZIP more than a base-case hack: the median keeps most entries from beating the S&P, so any real play lives in the ECR, downtown, and Industrial Rd condo and TOD pockets. Hillside geotech limits ADU feasibility on the west side.
What breaks it
- Price: a ~$2.3–2.7M median is the metro's hardest, and all three refresh jurors held the ZIP short of S on exactly that
- Ground-up multi-unit is confined to ECR, downtown, and Industrial Rd; White Oaks and Howard Park lots run small (~5,000 sq ft) with strong preservation pressure
- Hillside geotech limits ADU feasibility