# Planned developments in San Mateo County, CA

Boardwalk found 870+ planned projects in San Mateo County, CA in public filings from the last 12 months, mostly residential and infrastructure. The latest is on the City of Pacifica Planning Department agenda for Oct 2, 2026.

Data as of Oct 11, 2026. Updated monthly. Page: https://boardwalkai.com/development/california/san-mateo/

## San Mateo County at a glance

| Measure | Value |
|---|---|
| Projects, last 12 months | 870+ |
| New in the last 30 days | 56 |
| Most common type | Residential |
| Latest filing | Oct 2, 2026, City of Pacifica Planning Department |
| Sources we check | 17 |

Last 12 months, duplicates merged. Includes private, public, and small jobs. How we count: https://boardwalkai.com/coverage/#how-we-count

## Looking for the City of San Mateo?

[San Mateo, CA](https://boardwalkai.com/development/california/san-mateo-city/) · 44 projects

## What's planned in San Mateo County

By type, last 12 months.

| Type | Projects | Share |
|---|---|---|
| Residential | 290+ | 34% |
| Infrastructure | 250+ | 29% |
| Development decisions | 110+ | 13% |
| Public and institutional | 100+ | 12% |
| Commercial | 68 | 8% |
| Industrial | 18 | 2% |
| Mixed use | 14 | 2% |
| Agricultural | 1 | Under 1% |
| Other or not stated | 1 | Under 1% |

## Recent projects in San Mateo County

| Project | Location | Developer | Type | Size | Stage | Latest meeting |
|---|---|---|---|---|---|---|
| City Hall Plaza Project Design and Budget Transfer | Half Moon Bay, CA | Not stated | Parks and recreation | Not stated in filing | In design | Oct 6, 2026 |
| Stormwater Drainage Facility Improvements | Pacifica, CA | City of Pacifica | Stormwater and drainage | Not stated in filing | Early planning | Oct 2, 2026 |
| Hotel, Restaurant and Library Development | Pacifica, CA | Friend Development Group, LLC | Hotels and lodging | Not stated in filing | Approved | Oct 2, 2026 |
| Fire Station 63 Property Relinquishment | South San Francisco, CA | Not stated | Fire and police stations | Not stated in filing | Early planning | Sep 30, 2026 |
| $1.12M East Bellevue Avenue Railroad Crossing Closure Project | San Mateo County, CA | Not stated | Roads and highways | Not stated in filing | Early planning | Sep 22, 2026 |
| $20M Esplanade Avenue Bluff Infrastructure Preservation Project | Pacifica, CA | Not stated | Roads and highways | Not stated in filing | In design | Sep 21, 2026 |
| 5,001-Square-Foot Industrial Building | San Carlos, CA | PVCC Properties LLC | Industrial | 0.11 acres | Seeking approval | Sep 21, 2026 |
| Advanced Manufacturing and Light-Fabrication Development | Brisbane, CA | Orchard Partners, LLC | Industrial | Not stated in filing | Seeking approval | Aug 24, 2026 |
| 20-Unit Permanent Supportive Housing Development | San Carlos, CA | Mental Health Association of San Mateo County | Apartments | 20 apartments · 0.16 acres | Seeking approval | Aug 9, 2026 |
| O'Brien Drive and Willow Road Life Science Project | Menlo Park, CA | Tarlton Properties | Labs and R&D | 4.19 acres | Approved | Aug 5, 2026 |
| 6-Unit Residential Development | Menlo Park, CA | Park South 624, LLC | Single-family | 6 homes · 0.2 acres | Recommended | Aug 5, 2026 |
| 2,200-Unit Mixed-Use Development on 680 Acres | Brisbane, CA | Baylands Development Inc. | Residential | 2,200 units · 680.1 acres | Continued | Jun 25, 2026 |

Showing 12 of 870+ projects. A free trial opens the full records and documents.

Samples show projects filed by companies or public bodies.

## Cities in San Mateo County

- [Menlo Park, CA](https://boardwalkai.com/development/california/menlo-park/) · 70 projects
- [Woodside, CA](https://boardwalkai.com/development/california/woodside/) · 70 projects
- [Burlingame, CA](https://boardwalkai.com/development/california/burlingame/) · 67 projects
- [San Carlos, CA](https://boardwalkai.com/development/california/san-carlos/) · 58 projects
- [Brisbane, CA](https://boardwalkai.com/development/california/brisbane/) · 51 projects
- Hillsborough, CA · 44 projects
- [Pacifica, CA](https://boardwalkai.com/development/california/pacifica/) · 44 projects
- [San Mateo, CA](https://boardwalkai.com/development/california/san-mateo-city/) · 44 projects
- [Redwood City, CA](https://boardwalkai.com/development/california/redwood-city/) · 37 projects
- [Half Moon Bay, CA](https://boardwalkai.com/development/california/half-moon-bay/) · 36 projects
- [South San Francisco, CA](https://boardwalkai.com/development/california/south-san-francisco/) · 36 projects
- [Belmont, CA](https://boardwalkai.com/development/california/belmont/) · 35 projects
- [Atherton, CA](https://boardwalkai.com/development/california/atherton/) · 34 projects
- [Daly City, CA](https://boardwalkai.com/development/california/daly-city/) · 34 projects
- [San Bruno, CA](https://boardwalkai.com/development/california/san-bruno/) · 34 projects
- [Millbrae, CA](https://boardwalkai.com/development/california/millbrae/) · 29 projects
- Portola Valley, CA · 27 projects
- Foster City, CA · 20 projects
- East Palo Alto, CA · 19 projects
- El Granada, CA · 19 projects
- Colma, CA · 6 projects

## Nearby places

- [San Francisco County, CA](https://boardwalkai.com/development/california/san-francisco/) · 250+ projects
- [Santa Cruz County, CA](https://boardwalkai.com/development/california/santa-cruz/) · 240+ projects
- [Santa Clara County, CA](https://boardwalkai.com/development/california/santa-clara/) · 1,400+ projects
- [Alameda County, CA](https://boardwalkai.com/development/california/alameda/) · 840+ projects
- [Contra Costa County, CA](https://boardwalkai.com/development/california/contra-costa/) · 1,100+ projects
- [Marin County, CA](https://boardwalkai.com/development/california/marin/) · 760+ projects

All places in California: [California](https://boardwalkai.com/development/california/)

## Questions about San Mateo County

### What's planned in San Mateo County, CA?

Boardwalk found 870+ planned projects in San Mateo County, CA in the last 12 months, mostly residential and infrastructure. The latest is on the City of Pacifica Planning Department agenda for Oct 2, 2026.

### Where does this data come from?

Boardwalk's San Mateo County projects come from public meeting records, such as City of Pacifica Planning Department agendas and minutes. Each one links to the original filing.

### How current is it?

Boardwalk checks San Mateo County's public records at least once a week; the last check was Oct 12, 2026. These counts are as of Oct 11, 2026 and refresh monthly.

### Can I get an Alert for new San Mateo County projects?

Yes, a Boardwalk Alert emails you new San Mateo County projects daily, weekly, or monthly. Start with a 7-day free trial, no credit card needed.

## Get the full data

- **Count for free.** Connect Boardwalk to Claude or ChatGPT and ask how many projects match. Counting is free during your trial and on every plan. [Use it in Claude or ChatGPT](https://boardwalkai.com/mcp/)
- **Open the records.** Start a 7-day free trial, no credit card. It includes 50 project records. [Start free trial](https://boardwalkai.com/auth/signup/)
- **Use it in your tools.** CSV export, the API, and the MCP server come with every plan. [API docs](https://boardwalkai.com/docs/api/)
- **Download these numbers.** [san-mateo.json](https://boardwalkai.com/data/places/california/san-mateo.json) · [san-mateo.md](https://boardwalkai.com/development/california/san-mateo/index.md)

## How to cite

Source: Boardwalk, "Planned developments in San Mateo County, CA", boardwalkai.com/development/california/san-mateo/, data as of Oct 11, 2026.

How we count: https://boardwalkai.com/coverage/#how-we-count