By Sagar Shankaran, Founder of CallSphere
Why 504 interim and 7(a) construction draws sit nine days, and how scheduled drone inspections tied to the G703 get the wire out in two business days.
Key takeaways
It is 7:15 on a Tuesday morning in October and the general contractor on your borrower's new 14,000-square-foot machine shop has already called the branch twice. Draw request number four came in a week ago Friday: an AIA G702 with the G703 continuation sheet behind it, $318,400 against a 504 interim loan, sworn statements and partial lien waivers attached. Your portfolio manager has not been to the site. She has two annual reviews due, a borrowing base certificate that came in wrong, and 190 miles of round trip standing between her and the photo that lets her release the money.
So the draw sits. It sat nine days last time. The contractor is carrying his subs on his own line, and the borrower is calling the business development officer who brought the deal in.
Construction draws fail on logistics, not on credit. Nobody at the bank doubts the slab got poured. What is missing is dated, independent evidence that the percentage complete on line item 3-320 matches what the contractor billed — the thing your loan policy and your next Office of Credit Risk Management review both expect in the file.
Three ways banks close that gap today, and all three cost real money:
The same problem shows up elsewhere on your books: the annual site visit your policy requires on owner-occupied commercial real estate over $1 million, the unit count on a floor plan line where somebody must walk the dealer's lot and match stock numbers to the schedule, and the collateral inspection on an equipment-secured 7(a) where the CNC machine may or may not still be bolted to the floor. All of it is physical, scheduled, and the first thing that slips when loan operations is short a person.
Autonomous inspection is the practice of sending a drone or ground robot over a fixed route on a schedule, having it capture the same views every time, and having software compare today's images against the last visit and against the document you are trying to verify. That is the whole idea, and in 2026 it stopped being a pilot program.
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Hyundai put AI-powered autonomous inspection drones into service at its Georgia plant and cut inspection time by roughly 90%. Humanoid and wheeled robot platforms moved out of demo videos and into working facilities. The relevance to a $600 million community bank is not that you buy a drone. It is that the operators already flying roof surveys for property insurers now sell a repeatable, dated, geo-stamped flight for a price that competes with a windshield trip — and the software reading the imagery got good enough to tell you the roof deck is on and the storefront glazing is not.
flowchart TD
A["Contractor submits G702 / G703 draw #4"] --> B["Closer logs draw in Teslar / nCino"]
B --> C["Scheduled drone flight over the site"]
C --> D["Software compares images to G703 line items"]
D --> E{"Percent complete matches the billing?"}
E -->|Yes| F["Portfolio manager approves, wire released"]
E -->|No| G["Exception opened, PM calls the GC"]
G --> H["Revised G703 or partial funding"]
H --> F
The difference from 2024 matters. Drones flew construction sites two years ago too. What you got back was a folder of pictures and a bill. What you get back in 2026 is a short read-out tied to your own line items: exterior walls up, roof membrane in place, no visible glazing, site work substantially complete, dated 14 October, compared against the flight of 12 September. Your portfolio manager reads that in four minutes at her desk with the G703 open beside it.
Friday afternoon the contractor uploads the G702, G703, sworn statement and lien waivers to the borrower portal. Your loan closer logs the draw and flags it for inspection — in Teslar, in nCino, or whatever construction module your shop runs. That flag triggers the standing flight order; the route was saved at draw one.
Monday morning the drone flies for eleven minutes. Monday afternoon your portfolio manager opens a read-out: line-item percentages, a stitched overhead image, side-by-side against the prior flight, and a note that the rooftop units listed at 60% complete on the G703 are not visible on the roof. She calls the general contractor. He says the units are in the yard, delivered but not set. She funds the draw less $18,000 for that line, notes the exception, and releases the wire Tuesday at 11 a.m.
Elapsed time: two business days instead of nine. The contractor gets paid inside his own subcontractor terms. Your borrower does not spend a Thursday evening wondering whether the bank that sold him on service is going to make his framer wait. And the file has a dated, third-party, comparable record that survives a PARRiS review and, if it ever comes to it, a guaranty purchase package.
Stated assumptions, all illustrative: 18 construction projects a year across 504 interim and 7(a) construction, 7 draws each, plus 60 annual site visits on owner-occupied commercial real estate. Third-party inspections run $425 per trip. Internal visits cost 4 hours of a portfolio manager's fully loaded time at $62 an hour. Flights are quoted at $210 per visit.
| Line | Today | With scheduled flights |
| 126 construction draw inspections | $53,550 in third-party fees | $26,460 |
| 60 annual site visits, internal | 240 hours = $14,880 | 60 desk reviews at 0.5 hr = $1,860 plus $12,600 in flights |
| Average draw float | 9 calendar days | 2 business days |
| Annual direct cost | $68,430 | $40,920 |
Twenty-seven thousand dollars is not the reason to do this. The reason is the 178 portfolio-manager hours that come back and the seven days of float that come off every draw, on the exact deals where your competition is a nonbank SBA lender selling speed. Prove it by tracking one number for two quarters: calendar days from draw receipt to wire. If that number does not drop, nothing else you were told is worth anything.
A drone does not do a Phase I environmental site assessment. If your 7(a) is secured by a former dry cleaner or a fueling site, an environmental professional walks that property under ASTM E1527-21 and signs the report. No image comparison substitutes for it.
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A drone is not an appraiser. Your FIRREA-compliant appraisal, the review of it, and the as-completed value your approval rests on are USPAP work done by a licensed human. Flight imagery supports the file; it does not replace an appraisal.
A drone sees roofs, walls, footprints and lots. It does not see the mechanical room, whether the electrical rough-in passed, or whether the equipment on your UCC-1 carries the serial number you filed against. Where the money is behind the drywall, someone still goes inside — you have cut the trips from seven to two or three.
And the drone cannot tell you the contractor is thin. Mechanic's lien exposure, unpaid subs, a general contractor stretching one job to fund another — that is a conversation your portfolio manager has by phone with the subs and the title company, and it is the single most valuable half hour in construction lending. Automate the counting, not the judgment.
Pick one active construction project — ideally a 504 interim on a single-story building. Get one flight quoted and flown at the next draw, put the read-out in the file beside your existing inspection, and compare them line by line with your chief credit officer. If they agree, write the standing flight order into your construction loan checklist and your annual site visit procedure. That is a two-hundred-dollar experiment that answers the only question that matters: does this hold up in your own credit file?
Nothing in the SBA's servicing requirements dictates who holds the camera. Examiners and Office of Credit Risk Management reviewers look for a documented procedure that was followed consistently, with dated, independent evidence. Write the method into your loan policy, keep the flight log and the read-out in the credit file, and be able to explain when you still send a person. Inconsistency gets criticized; technology choice does not.
The same party paying for inspections today. On construction loans, inspection fees are ordinarily a borrower cost disclosed at closing, and on SBA loans they must be reasonable and customary and properly disclosed. If a flight costs less than the inspector it replaced, that is a smaller number on your borrower's settlement sheet, not a new fee.
Probably not for the draws alone. It is worth it if you fold in the annual site visits on owner-occupied commercial real estate and any floor plan or equipment collateral audits, because those are the inspections that quietly do not happen in a busy quarter and then show up as a finding. Count every physical look-see your policy requires in a year. If it is under about 30, keep doing it with people.
She stops driving and starts reviewing. The banks that get value here redirect those hours into covenant testing and borrower calls before year-end financials come due. If the hours just disappear into the day, you saved a little money and nothing else.
Faster draws create more phone traffic, not less: contractors calling to confirm the wire went, borrowers asking what the exception on line 3-320 means, subs calling the bank directly because the GC told them to. CallSphere builds AI voice and chat agents that answer those lines around the clock, take the details, book the call back with the right portfolio manager, and log the lead or the request so nothing dies in a voicemail box over a weekend. It does not fly drones or read a G703 — it makes sure the person calling about one gets a human answer on the calendar instead of a busy signal at 4:55 on a Friday.
Written by
Sagar Shankaran· Founder, CallSphere
LinkedInSagar Shankaran is the founder of CallSphere, where he builds production AI voice and chat agents deployed across healthcare, hospitality, real estate, and home services. He writes about agentic AI, LLM engineering, and shipping voice agents that handle real calls in production.
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