Peninsula guide · Tier S · Rank #7 of 28
House hacking in San Mateo (Downtown / North Central / Shoreview).
An affordable, landlord-favorable, rental-dense submarket walkable to an in-ZIP electrified downtown Caltrain station, with an active downtown density-bonus pipeline.
Status check: Verified 2026-07-16: Measure T (approved Nov 2024) has produced a materially larger pipeline than the synthesis captured, roughly 15 applications totaling ~6,000 potential units citywide, making San Mateo the most active city in the county. Named projects include 668 E Third Ave (128 units), 616 S B St, 715 N San Mateo Dr, and 1700 El Camino Real. Tier moved A to S on that basis, a unanimous jury. No per-ZIP research file exists yet for 94401, so this check ran against the summary row only.
What's actually happening in 94401
- Operational
Downtown B Street electrified Caltrain station in-ZIP, operational Sept 2024. Caltrain
- Adopted + update in progress
Final Downtown Area Plan (adopted 2009) plus an in-progress Downtown Specific Plan update resetting downtown density and height. City of San Mateo
- Under review through approved
Density-bonus pipeline piercing voter caps: 1 East 4th Ave (236 units, 14 stories / 202 ft, under review) and 230 S El Camino / W 3rd (28 condos, approved Feb 2026); the citywide pipeline exceeds 6,200 units. City of San Mateo
- Settled policy
No local rent control: Measure Q was defeated in 2016 with 60.94% opposed; a landlord-favorable posture. Ballotpedia
The numbers
- Median price
- ~$1.4–1.5M (city median; below 94403)
- Market rent
- ~$3,500/mo avg; 1bd ~$3,100, 2bd ~$3,999 (Zumper, Jun 2026)
- 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
- $1,150–1,600/mo per bed
- ADU rent band
- $2,500–3,100/mo
- Whole-home rent band
- $4,000–4,800/mo whole-home
- Underwriting vacancy
- 3–4% underwriting vacancy
- Appreciation scenarios
- 3.0 / 4.5 / 5.5 %/yr (conservative / base / upside)
Small-multifamily-dense flats in North Central and Shoreview. Appreciation basis: The B St station plus the density-bonus pipeline; no rent cap means clean turns. Rent bands are city-level medians; confirm the specific parcel before trusting any of them. Run your own scenario in the calculator.
The house-hack angle
Older small multi (duplex or triplex) walkable to the B St station, or SFR plus ADU on the Shoreview and North Central flats. No rent cap beyond AB 1482 means clean turn and room-by-room economics.
What breaks it
- The Downtown Specific Plan update is still in progress: the density reset is unadopted
- The pipeline is entitlement or under review: discount it versus delivered
- Don't attribute the Rail Corridor TOD (Hillsdale/Hayward Park) to 94401: it serves 94402/94403