The Rent Hacker Subscribe free →

Peninsula guide · Tier A · Rank #10 of 28

House hacking in Millbrae (Citywide, BART + Caltrain intermodal).

A buy-the-transit-node play on the Peninsula's scarcest asset, the only BART-Caltrain cross-platform intermodal station, with ~850 entitled TOD units. A rather than S on a ~$2.02M median and an entitled-but-unbuilt pipeline.

What's actually happening in 94030

  • Operational

    Millbrae Intermodal Station: the only BART/Caltrain cross-platform transfer, the southern BART terminus, one stop from SFO, electrified Caltrain since 2024 and same-platform since 2021. Caltrain

  • Adopted

    Millbrae Station Area Specific Plan (MSASP): adopted Feb 2016, amended Oct 2022, a ~116-acre TOD envelope. City of Millbrae

  • Entitled, unbuilt

    Serra Station (444 apartments in two 10-story towers plus 290K sq ft office) and Gateway at Millbrae Station (~400 units plus office and hotel on BART land), both entitled. City of Millbrae

  • Adopted; HSR conceptual only

    Downtown and El Camino Real Specific Plan plus the Grand Boulevard PD zone (2022). A future HSR stop stays conceptual and unfunded (draft multimodal plan targeted Dec 2026). City of Millbrae

The numbers

Median price
~$2.02M (Zillow ZHVI)
Market rent
county lower-2bd band (ZIP-level rent not found; 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
$1,200–1,700/mo per bed
ADU rent band
$2,600–3,200/mo
Whole-home rent band
$4,200–5,000/mo whole-home
Underwriting vacancy
3–4% underwriting vacancy
Appreciation scenarios
3.0 / 4.5 / 6.0 %/yr (conservative / base / upside)

Meadows, Mills Estate, and Green Hills carry the SFR mass. Appreciation basis: Intermodal scarcity; HSR upside is speculative and excluded from base. 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

A TOD condo or apartment near the intermodal node is the sub-SFR-median entry; SFR plus ADU works on the Meadows, Mills Estate, and Green Hills mass.

What breaks it

  • A ~$2.02M median; the TOD pipeline is entitled but unbuilt
  • SFO/FAA airspace caps height, and the HSR stop is purely speculative
  • Hillside topography on Green Hills and Highlands lots complicates ADUs