datumPROPERTY SERVICES
    SB-721 DEADLINE HAS PASSED — ENFORCEMENT AND LIABILITY EXPOSURE ARE GROWING. Fast-track inspections available.Get compliant now →
    QUALIFIED SB-721 INSPECTOR · SB-326 WITH LICENSED ARCHITECTS

    One team, one call.

    Done right.

    End-to-end commercial real estate solutions from survey and inspection to permitting and construction.

    Request a Quote →See Our Services
    Who We Are

    Built by people who've been on both sides of the problem.

    Datum was founded by licensed architects and builders who got tired of watching property owners get passed between five vendors — each one pointing fingers at the last. We built a firm that holds every credential in-house so the answer is always one call away.

    We're based in Southern California and work statewide. Every project carries our Class B license, our reputation, and our name.

    CA CSLB #1140201 · Class B General ContractorSB-721 & SB-326 Certified InspectorsLicensed in All California Jurisdictions
    Get in touch →
    01
    We own the outcome, not just the task.
    When we inspect a building, we stay involved through the fix. That's why we built the GC license, the survey team, and the permit service — so no problem gets handed off to someone else.
    02
    We measure. We don't guess.
    LiDAR, borescope, destructive testing when needed. Our reports show documented findings, not assumptions. Every finding is photographed, measured, and defensible.
    03
    Honest pricing before the first site visit.
    We built the estimator because surprises on the invoice are a failure of communication. You know the range before we ever show up.
    Design & Build, Coordinated
    We partner with licensed architects and hold a Class B GC license. Design intent and construction reality — no translation needed between trades.
    One Call Replaces Five Vendors
    One contract, one invoice, one number to call — from inspection to completion.
    Technology That Sees What Others Miss
    LiDAR surveying, AI-enhanced reporting, and proprietary inspection software.
    Transparent From Day One
    Clear scope, transparent pricing, honest timelines — before we start, not after.
    Deadline Passed

    SB-721 compliance is overdue. Every day counts.

    California's balcony inspection law required compliance by January 1, 2026. Properties that missed the deadline face daily fines, increased liability, and tenant safety risk. The clock is running — act now.

    Fast-Track Inspection
    Emergency scheduling available. On-site within days, not weeks. Report delivered in 5–7 business days.
    Compliant Reports
    Our reports are formatted to satisfy local building department requirements, legal teams, and insurance carriers.
    Repair If Needed
    As a licensed GC, we transition directly from inspection to remediation. One team, no rebidding, no delays.
    Free Tool

    Upload your plans.
    Get a free AI pre-check.

    Before you submit plans to the city, our AI flags the most common rejection triggers — ADA gaps, missing energy compliance details, egress issues, and more. It's free, takes 60 seconds, and can save you weeks.

    Catches the top code issues before plan check
    Covers building, ADA, Title 24 & fire access
    Response within 1 business day — no cost
    Try It Free
    AI Plan Pre-Check Report
    ADA accessible path to entryPASS
    Title 24 energy compliance docsREVIEW
    Egress width & travel distancePASS
    Fire-rated assembly specificationsREVIEW
    Occupancy load calculationsPASS
    Restroom accessibility compliancePASS

    2 items flagged for review before city submittal. Full notes included.

    What Clients Say

    Trusted by property managers
    across California.

    "
    ★★★★★

    We've worked with Datum on three SB-721 inspections across our HOA portfolio. Their reports are thorough, they explain everything clearly, and they handled the balcony repairs without us needing to find another contractor.

    MR
    Maria R.
    Portfolio Manager · LA County
    "
    ★★★★★

    The 3D surveying they delivered for our renovation project saved us weeks of back-and-forth with the architect. The as-built drawings were exactly what we needed and came faster than any firm we'd used before.

    JK
    James K.
    Building Owner · San Diego
    "
    ★★★★★

    Datum handled our SB-721 inspection, permit, and full balcony remediation. One team managed it all. The deadline was tight and they delivered. I wouldn't use anyone else for our 200-unit complex.

    TN
    Tom N.
    HOA Board President · Orange County