Living in Harbortown
Harbortown is a large townhome development built in 1979 around a man-made lake, east of Highway 101 in San Mateo's Mariner's Island area, near the Marina Lagoon and the Bridgepointe shopping center. Nearly all of its sales are condos and townhomes, with a 2025 median around $1.11M, and the market has been steady, with homes selling at about 98–100% of asking.
Parking & walkability: Homes include assigned or garage parking, with guest parking more limited. Bridgepointe's shopping and the lagoon paths are close by, and Highway 92, the San Mateo Bridge and 101 are just a few minutes away.
What homes in Harbortown are doing
Condos and townhomes in Harbortown sold for a median of about $938K in 2015–16 and $1.1M in 2024–25, a 18% increase, behind San Mateo as a whole (+24%). Prices peaked in 2023 at $1.36M. In 2025, homes here sold at a moderate pace (median 23 days on market) and usually below asking (98.1% of list price on average). So far in 2026 (5 sales through September), the median is $998K.
Median condo & townhome price, 2015–2026
* 2026 covers January through September. Hollow dots mark years with fewer than 3 condo & townhome sales; treat those medians as rough. 147 condo & townhome sales since 2015.
| Year | Sales | Median price | $/sq ft | Days on market | Sale-to-list |
|---|---|---|---|---|---|
| 2026 (Jan–Sep) | 5 | $998K | $763 | 27 | 100.0% |
| 2025 | 12 | $1.11M | $843 | 23 | 98.1% |
| 2024 | 11 | $1.1M | $887 | 12 | 100.2% |
| 2023 | 6 | $1.36M | $852 | 19 | 100.5% |
| 2022 | 8 | $1.08M | $880 | 14 | 100.6% |
| 2021 | 15 | $1.2M | $835 | 9 | 103.1% |
| 2020 | 16 | $1.1M | $826 | 17 | 100.0% |
| 2019 | 20 | $1.2M | $779 | 23 | 100.3% |
| 2018 | 16 | $1.25M | $836 | 17 | 111.5% |
| 2017 | 14 | $963K | $729 | 27 | 102.3% |
| 2016 | 15 | $930K | $664 | 16 | 100.0% |
| 2015 | 9 | $950K | $673 | 11 | 105.1% |
Harbortown on the map
Borders are built lot by lot from the county's property lines and where homes have been listed (MLS neighborhood codes), and stay inside official city limits (dashed), so a home or two along an edge may differ from official MLS lines.
Other San Mateo neighborhoods
- Baywood
- San Mateo Park
- Aragon
- Hayward Park
- Sugarloaf & Laurelwood
- Shoreview & Seal Point
- Beresford & Hillsdale
- 19th Avenue Park & Sunnybrae
- Baywood Knolls
- Baywood Park
- Bowie Estate
- Eastern Addition & Downtown
- Edgewater Isle
- Fiesta Gardens
- Foothill Terrace
- Homestead & Husing
- Lakeshore
- Lauriedale
- Los Prados
- Mariner's Isle
- Parkside
- San Mateo Knolls & Laurel Creek
- San Mateo Terrace
- San Mateo Village & Glendale Village
- San Mateo Woods & Bayridge
- The Highlands & Ticonderoga
- Westwood Knolls
Thinking about buying or selling in Harbortown?
I can pull the exact comps for your street and walk you through what they mean.
Source: MLSListings, Inc. closed sales, 2015–September 2026, summarized by Drew Lehr. Neighborhood figures combine the MLS area(s) that make up Harbortown; where there are several, yearly figures are sales-weighted. Information deemed reliable but not guaranteed.