FHA & Agency
FHA and Agency multifamily radon diligence
August 5, 2026
What do FHA and Agency deals actually require for radon?
FHA MAP and many Agency multifamily programs treat radon as environmental diligence, not a optional inspection. Reviewers want a measurement that follows current multifamily protocol, a report they can file with the rest of the package, and a path if results come back elevated. The test has to match the property, the program, and the date already sitting on the closing calendar.
HUD's Multifamily Accelerated Processing (MAP) Guide is the usual FHA reference. Agency lenders often point to similar measurement and reporting expectations, even when the form names differ. The common thread is protocol, not a consumer-style kit.
When should radon start on an FHA or Agency timeline?
Start as soon as the property is real enough to scope: address, unit or building count, program, and a report date. Device placement still needs closed-building conditions and site access, so a late start is what puts radon on the critical path. A fixed fee usually within one business day is useful only if the rest of the calendar is honest.
If resident notice, vacant units, or a large building count will slow placement, say that in the quote form up front.
What belongs in a lender-ready radon report?
A diligence report is not a raw lab dump. Reviewers need the protocol used, the building layout that drove device count, closed-building conditions, results by location, and a clear statement of what happens next if numbers are elevated. Tie the report date to the proposal so underwriting is not guessing.
| Diligence item | Why reviewers care |
|---|---|
| Protocol named (ANSI/AARST multifamily guidance) | Shows the test was not a single-family shortcut |
| Device plan by building and floor type | Explains coverage instead of a mystery total |
| Closed-building conditions during the test window | Protects the result from an open-window week |
| Report date that matches the proposal | Keeps radon off a last-minute exception list |
| Elevated-result path (bids and program review) | Avoids a dead end after the number comes back |
How do you keep fees from moving after devices are on site?
Scope from facts, not a phone tag loop. Address, units, lender or program, deadline, and enough layout context to confirm protocol. Then lock a fixed fee before anyone travels. Surprise invoices after placement are the old pattern. If the building count or program changes, the fee can change because the protocol changed, not because the job was already underway.
What should a Borrower or originator send to get a real quote?
Send the property, not a vague "need radon." Include the street address, unit or building count, FHA or Agency program, closing or report date, and any access constraints. That is enough for NOI Radon to confirm protocol and price, usually within one business day, then schedule nationwide placement around your calendar.
Ready on a live deal? Use the quote form.