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Erin Proto | Colliers | San Francisco

Erin Proto

Senior Research Manager

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Professional Summary

Erin Proto joined Colliers International’s San Francisco Office in December of 2013. She heads up the research department and is responsible for authoring office, multifamily and retail research reports. She is responsible for the management of all data collection, quality control, aggregation, analysis, interpretation and timely reporting of market information and trends. Prior to Colliers, Ms. Proto served as Director of Research at Cornish & Carey Commercial Newmark Knight Frank (C&C) for the Walnut Creek and Pleasanton offices.  Before joining C&C, she worked for Grubb & Ellis as Vice President, Director of Research & Marketing in the East Bay and San Francisco offices. During her eleven years at Grubb & Ellis, she mananged the companies research and marketing efforts, including managing the research and marketing team, was responsible for the database, market analysis, quarterly and forecast reports, creation of key proposals and presentations. She was also responsible for all direct marketing functions of the office including collateral material development, communications, web presence, social media marketing, public relations, forecast events and conventional advertising.


 Colliers Market Research iPad App 2015 – Best Market Intelligence Initiative – Finalist

Commercial Real Estate Women (CREW) - Membership Committee

2018 - Named Colliers Centers of Excellence (CCOE) Research Lead for the Northwest Region of Colliers International


 California State University, Hayward

Memberships & Involvements

CREW, Colliers International USA Research Council - Member, Colliers Centers of Excellence - Team Lead | Research


The SF Registry, The SF Business Times, Costar, Digital Sky Aerial Imaging, Sig-1, Cornish & Carey Commercial Newmark Knight Frank, Grubb & Ellis


Service Lines


Featured Research

Jul 7, 2021

2021 Q2 San Francisco Market Research Report

Leasing Activity In San Francisco Is On The Rise - San Francisco continues to experience growth with tenant demand as companies ramp up for returning to the office which will translate into increased occupancy.
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Apr 8, 2021

2021 Q1 San Francisco Office Market Research Report

San Francisco Continues to Experience Growth in Total Available Space - The overall vacancy rate rose 190 basis points to 13.1 percent.
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Featured News

Nov 12, 2017

Despite a decrease in sales, Bay Area multifamily market remains stable.

A new report released by Colliers International indicates that while total sales volume of multifamily assets has decreased across Northern California, the market remains resilient.
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