Cahill Contractors

Cahill Contractors We are a majority woman-owned general contractor serving the San Francisco Bay Area since 1911. We build with a focus on quality, collaboration, and value.

Our projects are tightly controlled and well managed, providing our clients with the lowest overall project cost. We work openly and in concert with clients, architects, and subcontractors to complete projects on time, under budget, and to the client’s utmost satisfaction. As a family owned business, integrity and people are at the heart of everything we do. Whether in the field or the office, our employees at every level take tremendous pride in their work. License #1011738, A&B

This Tuesday we celebrated the grand opening of 1633 Valencia Street, offering 145 units of permanent supportive housing...
06/05/2026

This Tuesday we celebrated the grand opening of 1633 Valencia Street, offering 145 units of permanent supportive housing for seniors 55 and older in San Francisco's Mission District. 🏠

Developed by Mercy Housing, designed by David Baker Architects, and made financially possible through the Housing Accelerator Fund, this is what happens when the right partners commit to a shared goal.

As design-builder, Cahill drove the process with a disciplined focus on managing design to budget, bringing trade partners in early, maximizing prefabrication, and completing BIM coordination before design development was even finished. The result: budgets held to GMP with minimal value engineering, a compressed schedule, and unused contingency that went toward resident upgrades, not overruns.

~$525,000/unit (excluding acquisition and reserves) and occupancy achieved in just over two years from entitlement.

Thank you to Mercy Housing, David Baker Architects, HAF, Felton Institute, Mission Action, and every partner who showed up for this one. It was a privilege to build alongside all of you.

🔗 Read more about 1633 Valencia on our blog, link in bio.

Image Credit: David Baker Architects

This week, we welcomed our first cohort of 2026 summer interns! 👋After kicking off with onboarding, they’re now out in t...
06/03/2026

This week, we welcomed our first cohort of 2026 summer interns! 👋

After kicking off with onboarding, they’re now out in the field, gaining hands-on experience and learning alongside our project teams.

We’re excited to have them on board and look forward to seeing all they accomplish throughout the summer!

Partnering with BRIDGE Housing, HKIT Architects and Y.A. studio, Eve Community Village (Potrero Block B) is a six-stor...
06/03/2026

Partnering with BRIDGE Housing, HKIT Architects and Y.A. studio, Eve Community Village (Potrero Block B) is a six-story affordable housing development that brings 157 new homes to San Francisco families, offering a mix of one-, two-, three-, and four-bedroom apartments.

Designed to support residents of all ages, the community features:

🏡 157 affordable residential units
🌿 Landscaped courtyards and a public mini-park
👥 Community and teen rooms for gathering and connection
🚗 On-site parking for residents
🧒 A child development center serving up to 52 children
🌎 LEED Gold-certified sustainable design

We're proud to help deliver housing that provides stability, opportunity, and spaces where families can thrive for generations to come. 🧡

Building community, one candle at a time 🕯️✨Our Women+ group came together for an evening of creativity, connection, and...
06/02/2026

Building community, one candle at a time 🕯️✨

Our Women+ group came together for an evening of creativity, connection, and conversation at our first Wick & Wine candle-making event. From selecting scents to pouring the final product, it was great to see everyone unwind, collaborate, and enjoy time together!

Thank you to everyone who joined us and helped make the event such a success. We’re proud to continue creating spaces that support community, inclusion, and meaningful connection across our teams.

The new internship season is coming up, and we couldn’t be more excited to welcome our 2026 interns to Cahill! 👷‍♀️👷‍♂️A...
05/27/2026

The new internship season is coming up, and we couldn’t be more excited to welcome our 2026 interns to Cahill! 👷‍♀️👷‍♂️

As we get ready for another summer with our interns, we’ve been reflecting on the experiences shared by last year’s group, from gaining firsthand field experience and learning from project teams onsite, to seeing the collaboration and teamwork behind every safe and successful build. Their experiences are a reminder of how impactful hands-on learning and strong mentorship can be at the start of a career.

We’re excited to continue creating those opportunities and can’t wait to see what this year’s interns will learn, contribute, and accomplish alongside our teams this summer. 🚧

A few weeks ago, we had the opportunity to tour the Wildcare restoration project in San Rafael. For generations, has pr...
05/26/2026

A few weeks ago, we had the opportunity to tour the Wildcare restoration project in San Rafael. For generations, has provided lifesaving care for local wildlife while teaching the community about coexistence, conservation, and environmental stewardship.

The restoration will modernize and expand the facility to better support wildlife rehabilitation, veterinary care, and community education for years to come. Excited to see this meaningful project come to life and the lasting impact it will have on both people and wildlife alike! 🌿🦉

Celebrating a major milestone for San Francisco’s HOPE SF initiative 🎉🏘️We were honored to join The John Stewart Company...
05/20/2026

Celebrating a major milestone for San Francisco’s HOPE SF initiative 🎉🏘️

We were honored to join The John Stewart Company, our joint venture partner Nibbi, and the entire project team for the grand opening of Hunters View Phase III — the final phase of the Hunters View redevelopment. This transformative project delivers 118 new affordable homes, vibrant community spaces, and a new park, all while honoring the commitment to rebuild without displacing the families who call Hunters View home.

Thank you to everyone whose partnership, dedication, and vision helped bring this community-centered development to life. Here’s to creating lasting impact and stronger neighborhoods for generations to come!

Sunnydale is reaching new heights. 🏗️At Block 9, the team celebrated a major milestone with today’s topping out ceremony...
05/19/2026

Sunnydale is reaching new heights. 🏗️

At Block 9, the team celebrated a major milestone with today’s topping out ceremony — marking completion of the rough wood framing to the roof. With window installation progressing through Level 3, interior MEP rough-ins underway across all floors, and exterior waterproofing climbing toward Level 4, the project continues to gain momentum as crews prepare for upcoming WRB installation and tower crane dismantle later this spring.

Meanwhile at Block 7, wood framing is officially topped off and exterior progress continues to take shape with ongoing window installation, roofing operations beginning this month, and MEP rough-ins advancing throughout the building. Interior framing and shear work are steadily moving floor by floor as the team pushes toward the next phase of construction.

Huge congratulations to our Cahill and Guzman teams, trade partners, and project collaborators driving progress forward every day at Sunnydale Blocks 7 & 9. 👏

We’ve officially topped out at 525 N Capitol in San Jose—The Fielden, a five-story affordable housing development—markin...
05/08/2026

We’ve officially topped out at 525 N Capitol in San Jose—The Fielden, a five-story affordable housing development—marking a major milestone for the project! 🎉

To celebrate, we gathered for a topping out lunch and took time to connect as a team. The project team led a jobsite tour, giving everyone a closer look at the progress and sharing the thought process behind key construction and design decisions along the way.

Proud to help bring much-needed housing to the South Bay. 🏗️

May is Affordable Housing Month! 🏡 We’re proud to have delivered nearly 9,700 affordable housing units across the Bay Ar...
05/01/2026

May is Affordable Housing Month! 🏡

We’re proud to have delivered nearly 9,700 affordable housing units across the Bay Area, spanning supportive and senior housing to family communities—each thoughtfully designed to meet critical housing needs across the region.

From Hayward Senior Commons to 730 Stanyan, Eve Community Village, Madrone Terrace, 231 Grant Ave, and Kelsey Civic Center, these communities represent our ongoing commitment to building housing that makes a lasting impact.

And we’re not stopping here. With thousands more units underway, we remain focused on expanding access to safe, high-quality, and affordable homes for our communities.

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425 California Street, Ste 2200
San Francisco, CA
94104

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Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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