# 668 East 3rd Avenue

San Mateo, CA · strip · tier: draft · Retrofit Atlas record `n-df69b02337` · release 2026-10-20

Canonical: https://retrofitatlas.org/strips/ca/san-mateo-668-east-3rd-avenue/  
JSON: https://retrofitatlas.org/data/records/n-df69b02337.json · Provenance: https://retrofitatlas.org/data/records/n-df69b02337.provenance.json · API: https://retrofitatlas.org/api/v1/sites/n-df69b02337

## Facts

| Field | Value | Provenance |
|---|---|---|
| Status | approved | reported · model extraction, unreviewed |
| Strategy | redevelop | none |
| New use | housing | none |
| Redeveloper | Prometheus Real Estate Group | reported · model extraction, unreviewed |
| Entitlement year | 2026 | none |
| Planning notes | Approved by San Mateo City Council. | none |

## Parties

- Prometheus Real Estate Group — developer

## Timeline

- 2023: Demolition has already occurred
- 2026: City Council approved plans

## Sources

- City Council Approves Eight-Story Apartments at 668 East Third ... — https://sfyimby.com/2026/03/city-council-approves-eight-story-apartments-at-668-east-third-avenue-san-mateo.html

## Cite

Retrofit Atlas (2026). "668 East 3rd Avenue, San Mateo, CA." Record n-df69b02337, release 2026-10-20, tier draft. https://retrofitatlas.org/strips/ca/san-mateo-668-east-3rd-avenue/ (accessed 2026-10-20).

```bibtex
@misc{retrofitatlas_sanmateo668east3rdavenue,
  title = {668 East 3rd Avenue, San Mateo, CA},
  author = {{Retrofit Atlas}},
  howpublished = {\url{https://retrofitatlas.org/strips/ca/san-mateo-668-east-3rd-avenue/}},
  year = {2026},
  note = {Record n-df69b02337, release 2026-10-20, tier: draft. Built on the Retrofitting Suburbia map (Dunham-Jones and Williamson) and the sources listed on the record. Accessed 2026-10-20}
}
```

Licence: research use only; terms undecided with the authors (https://retrofitatlas.org/licence/). Wikipedia text CC BY-SA 4.0. Tiers: curated = from the authors' public map, not reviewed by them; draft = imported or model-extracted, unreviewed.