Hathaway Dinwiddie

Hathaway Dinwiddie provides General Contracting and complete Project Planning and Management services in California's most dynamic markets.

[Hathaway Dinwiddie @hdcco]

Two days of learning and networking at Lean Project Delivery Conference 2026, exploring lean planning, innovation, and strategies shaping construction's future. Bringing fresh ideas back to the field.

[Hathaway Dinwiddie @hdcco]

Proud Mission Rock Building G is featured in Ascent Magazine, showcasing collaboration, innovation, and craftsmanship shaping San Francisco's waterfront. Congrats to all who made this vision real! @PCIprecast

Read more: https://t.co/Whf88gprnz

[Hathaway Dinwiddie @hdcco]

Our team at the 2026 Advancing Preconstruction conference: Hay Thi, Estimator, and Jeffrey Visava, Preconstruction Manager, shared insights on model-based estimating, tech integration, and innovation shaping our industry's future.

[Hathaway Dinwiddie @hdcco]

Proud to support the 39th Annual Tech Challenge in San Jose, judging with partners and helping students bring projects to life—rewarding to back future builders and innovators!

[Hathaway Dinwiddie @hdcco]

Celebrating Women in Construction Week! Proud of the talented women at Hathaway Dinwiddie whose leadership and dedication strengthen our teams and industry. #WICWeek2026 #LevelUpBuildStrong #NAWIC #WomeninConstructionWeek #SupportWomenInConstruction

[Hathaway Dinwiddie @hdcco]

Hathaway Dinwiddie proudly supports WIOPS, NAWIC & CREW to empower and advance women in the AEC industry. #WomenInConstruction

[Hathaway Dinwiddie @hdcco]

As we celebrate Women in Construction Week 2026, we honor the women who challenge what’s possible and continue to Level Up and Build Strong — shaping the future of our industry!

#WICWeek2026 #LevelUpBuildStrong #NAWIC #WomeninConstructionWeek #SupportWomenInConstruction

[Hathaway Dinwiddie @hdcco]

Proud to build UC Irvine's Falling Leaves Foundation Medical Innovation Building, advancing gene & cellular therapies. #HathawayDinwiddie #ConstructionExcellence #LifeSciences #UCIProud #Innovation #HealthcareResearch

[Hathaway Dinwiddie @hdcco]

Honored that CSUN Autodesk Technology Engagement Center won the Gold Award for Community Impact from LA Business Journal's 2026 CRE Awards! 🏆 Developed for CSUN, this 34,000 SF facility advances equity in STEM and drives innovation, inclusion, and opportunity.

[Hathaway Dinwiddie @hdcco]

Proud to represent our team last weekend at the Reno ASC Competition Career Fair and to support the students shaping the next generation of builders.

[Hathaway Dinwiddie @hdcco]

Headed to the ASC Competition this Saturday? Stop by our booth to meet the team, learn about what we do, and explore internship and career opportunities. We’d love to connect! #ASCCompetition

[Hathaway Dinwiddie @hdcco]

Still reminiscing on our wonderful holiday party last month, celebrating a successful year and our amazing team! 🎄🥂

[Hathaway Dinwiddie @hdcco]

Thrilled to announce Salesforce Tower won an Honor Award in Water at the California Green Building Awards! Huge thanks to our team & partners! 🎉 #SalesforceTower #GreenBuilding #SustainableDesign #WaterConservation #CaliforniaAwards

[Hathaway Dinwiddie @hdcco]

Thrilled to announce Mosaic won an AIA Merit Award at the 2025 AIA California Design Awards! 🎉 With 11,000 sq ft of stunning event space at Three Embarcadero Center, huge thanks to our team for bringing it to life! #AIA #DesignAwards #Mosaic

Photography Credits: Jason O'Rear

[Hathaway Dinwiddie @hdcco]

Thrilled to announce Vantage Phase I won ENR West's Best Office/Retail/Mixed-Use Project! Huge thanks to our amazing team and partners! 🎉 #Award #Vantage #Innovation
Photography: Jason O'Rear

[Hathaway Dinwiddie @hdcco]

Our team had an amazing day volunteering with the SF-Marin Food Bank, packing over 28,000 pounds of produce to support neighbors in need. Huge thanks to SF Marin Food Bank for the chance to fight hunger! #HDCCoCares #SFMarinFoodBank #CommunityImpact #TeamVolunteering

[Hathaway Dinwiddie @hdcco]

We leveled up at the LEAP Sandcastle Classic! 🎮 Our Ender Dragon crew conquered Ocean Beach, rain and all! Grateful for our partnerships & support for LEAP Arts! Plus, we hit our $10,000 fundraising goal! 🎉 Thank you, everyone!

[Hathaway Dinwiddie @hdcco]

It was so exciting to see our Director of Preconstruction & Innovation, Peter Spier, join industry leaders at the International Life Sciences & Biotech Conference last week to discuss AI and robotics in Biotech and Lab Delivery! #Bisnow #Biotech #Innovation #AI #LifeSciences

[Hathaway Dinwiddie @hdcco]

Hathaway Dinwiddie’s Annual NorCal Company Picnic was a tropical success! With Hawaiian-inspired fun, from mini golf and arts & crafts to hula hoop contests, our HD family came together for a day of laughter, games, and good company. A perfect way to close out summer!

[Hathaway Dinwiddie @hdcco]

We wrapped up our 2025 Marketing Summit with a fantastic dinner at Café Sebastian! Great food, ambiance, and company to celebrate our goals! #MarketingSummit #Teamwork