How Rincon Homes Tracks Every Subcontractor Certificate Across a Ten-Year Defect Window
About Project
Rincon Homes builds premium coastal homes in Carlsbad, California, with a small senior team. Columnline runs the AI employees that read, check, and chase every subcontractor insurance certificate, and review plan sets the way the city does.
About Rincon Homes
Rincon Homes runs about 20 residential projects, from four-home deals to a five-story mid-rise, with 13 senior people and no junior support. So paperwork lands on the people whose time is worth the most. Even the VP of Entitlements, an attorney, was chasing it.
Principal Cameron St.Clair did not want his team learning AI. He wanted it built and run for them: “I’m not that guy that’s going to learn it. I want to hire consultants for my whole life.”
- Company
- Rincon Homes, Carlsbad, California
- Industry
- Premium residential homebuilding and development
- Size and scale
- Founded in 2009 by three Fortune 500 homebuilding executives. 13 senior staff. About 20 residential projects: 5 going vertical, 15 to 16 in entitlement.
- What Columnline runs
- Certificate Compliance agent, Plan Check agent, Bid Leveling tool, company website with a self-serve Website Manager
- Tools it works with
- Email, certificate PDFs, Google Sheets, Dropbox, Keap CRM
Before
- One person tracks 150 to 200 certificates by hand, headed toward 700 or more
- Expiration dates live in one person’s spreadsheet and memory
- “Are we covered on this project?” means digging through files
- The fallback is a $20,000 to $30,000 a year outside service
- A repeat city plan-check comment costs at least 30 days
- 90% of subs get chased past the bid deadline
After
- The AI employee reads each certificate on arrival and checks required fields and entity names
- Reminders go out 14, 7, and 1 day before a certificate expires
- A live board shows every subcontractor green, orange, or red, by project
- Columnline runs the job, and the purchasing assistant works the exceptions
- The Plan Check agent reviews sets against Carlsbad standards and flags repeat comments
- Purchasing levels bids in one tool built on its 181-sub, 30-trade bid log
The Problem
Insurance Certificates
Problem
A ten-year insurance tail, tracked by hand
California’s SB 800 gives homeowners ten years to bring a construction defect claim. Rincon has to prove every subcontractor was insured for that whole window, and each project brings about 46 subcontractors.
Purchasing Assistant Megan Harpold tracked it by hand: 150 to 200 certificates, on pace to pass 700 within five years. One missed certificate in years six through ten could leave a claim uncovered. Cameron was about to hire an outside service that would “charge about 20, 30 grand a year. That seems like that should be all AI, in my opinion.”
“46 subs times X amount of jobs I do in a given year times 10 years. Right now, we’ve got about 150, 200 different certs we need. And it’s growing quickly.”
Solution
Certificates that get read, checked, and chased
Cameron wanted a program “doing all the heavy lifting” while Megan is “just checking in on a weekly.” That is how the job runs now.
Each certificate is read when it arrives and checked against the project’s required fields and entity names. The AI employee catches errors a busy person misses, like a holder number typed “1046” instead of “I046.” It sends reminders before every expiration, reads replies, and drafts answers. For the first month, a person approved every email before it went out.
Rosie, the Certificate Compliance agent
Reads every certificate, tracks every expiration, and drafts the chase for a person to approve.
The Problem
Plan Check
Problem
Every repeat city comment costs a month
Jonathan Frankel, VP of Forward Planning, moves Rincon’s plan sets through the City of Carlsbad. Every repeat plan-check comment costs at least 30 days. With 15 to 16 projects in entitlement, those months stack up.
Solution
A reviewer that reads the set like the city does
The Plan Check agent reviews plan sets against Carlsbad’s published standards. It logs each city comment, routes it to the right consultant, and flags repeats.
On real approved drawings for a Rincon project, the agent indexed all 27 sheets and found the same grade-label issue the city reviewer had raised, without seeing the city’s letter. It added two more credible flags and marked what it could not verify instead of guessing.
Plan Check agent
Checks plan sets against city standards so repeat comments get caught before resubmittal.
The Problem
Purchasing and Marketing
Problem
Senior people chasing bids and vendors
“That timeline comes and we’re sitting there emailing or calling 90% of the subs,” Cameron said. On one framing bid, the team had “called three, four subs, six, seven times,” and the bid was a week late. Marketing faced a $24,000 outside quote to render three homes not yet built.
Solution
Purchasing and marketing tools the team runs itself
Purchasing Manager Karen Cannon levels bids in a tool built on her live bid log of 181 subcontractors across 30 trades. For marketing, Columnline prototyped a path from CAD files to 3D models to listing-grade renders.
The website was rebuilt so Sales and Marketing Manager Caitlin Petrush edits it herself. All 32 portfolio projects and 910 property photos now live on Rincon’s own site, not a vendor’s.
Bid Leveling tool and Website Manager
Put buyout and the company website in the hands of the people who own them.
Results
A ten-year obligation on a board, not in one person’s memory.
- 3,977 insurance coverage records tracked across 118 subcontractors, with requirements mapped on all 27 active projects.
- 200 certificates run through AI verification, catching small errors that matter in a claim.
- The city’s own comment, found independently by the Plan Check agent on a real 27-sheet plan set.
- 1,081 runs by the compliance AI employee, which starts work every weekday morning.
- Two staff members logged 120 sessions in 90 days.
Outcome
The outcome
Rincon’s ten-year obligation now lives on a board, not in one person’s memory. For a builder carrying a defect tail, that is the difference between hoping every certificate is current and knowing.
Rincon signed on after a reference call with another Columnline client. Cameron’s note that day: “I spoke with Justin Spillers today and he had great things to say about both of you and the automation you guys are doing. We would like to move forward with both proposals.”
Next steps
What’s next
The next jobs follow the same pattern: every plan set through the checker before it reaches the city, an AI employee that sends and chases subcontractor bids, and offering memos to Rincon’s investor interest list of more than 1,000 people.
Carrying subcontractor insurance, plan-check, or bid-chasing risk with a small senior team? Book a call, and we will run the same job at your company.