Phase 1 ESA for Multifamily Properties

Apartment buildings look like low-risk property from an environmental standpoint, and most of the time the Phase 1 Environmental Site Assessment on a multifamily deal comes back clean. The exceptions have a pattern. The building sits on land that was something else first, it was heated with oil at some point, or it went up before the mid 1980s and carries asbestos and lead paint that a lender will ask about even though those materials sit outside the ASTM scope.

This guide covers what the consultant looks for on a multifamily site, what agency lenders and the SBA expect, and how a buyer keeps the environmental review from slowing a closing.

What Was There Before the Apartments

The history of the land drives the multifamily Phase 1 more than the building does. A garden apartment complex built in 1972 on a former orchard carries arsenic and lead from decades of pesticide spraying in the top foot of soil. A mid-rise built in 2005 on a downtown lot went up over whatever the block held in 1920, which in an older city means a coal yard, a laundry, a machine shop, or a filling station. Urban infill projects across the Northeast and Midwest sit on historic fill that contains ash, slag, and construction debris with metals and polycyclic aromatic hydrocarbons.

The consultant reads the fire insurance maps and aerial photographs back to the earliest available year for the parcel and its neighbors. A prior industrial use on the site itself becomes a REC. A gas station across the street from 1950 to 1985 gets evaluated for whether its plume could have reached the subject property through groundwater.

Heating Oil Tanks

Buildings in the Northeast, the Mid-Atlantic, and the Pacific Northwest were heated with oil into the 1970s and later, and many were converted to gas without the tank being removed. A buried tank that was abandoned in place forty years ago has had forty years to corrode. Tank registration rules exempt heating oil tanks in many states, so there is no state record to check. The consultant looks for fill pipes and vent lines on the exterior walls, asks the property manager about the heating history, and reviews the building permits for a conversion. A tank that cannot be documented as properly closed gets reported as a REC in most cases.

Asbestos, Lead Paint, Radon, and Mold

None of these is part of the ASTM E1527-21 scope, and the Phase 1 report will say so. Agency lenders ask about them anyway. Fannie Mae and Freddie Mac loan programs include their own environmental screening standards for multifamily, and those standards add an asbestos survey, a lead paint evaluation for buildings built before 1978, a radon screen in high-radon counties, and a mold assessment where moisture problems show up. HUD-insured loans carry similar requirements. Most consultants offer these as add-ons to the Phase 1, and pricing them together saves a second mobilization.

A buyer using a conventional bank loan on a smaller property may face none of these extras. The purchase agreement is a better place than the loan file to decide whether to order them, since a lead paint finding changes the disclosure obligations to tenants after closing.

Operations on the Site Today

Apartment complexes run their own small industrial operations. A maintenance shop stores paint, solvents, and pool chemicals. A pool has a chlorine or acid tank. An emergency generator sits on a diesel day tank. Larger complexes have a fueling point for grounds equipment. The consultant walks each of these and notes whether storage is contained and whether the floor shows staining. Most of it gets reported as de minimis. A pool chemical storage room with a corroded floor drain that goes to the ground is the kind of detail that gets a closer look.

Dry cleaning drop stations in ground-floor retail space at a mixed-use building count as a dry cleaner in the consultant's eyes if the shop ever ran a machine on site rather than shipping garments out. The dry cleaner guide explains why that matters.

How Findings Get Reported

A clean multifamily Phase 1 lists no RECs, notes the maintenance shop and pool chemicals as de minimis, and flags asbestos and lead paint as out-of-scope considerations with a recommendation. A property with an undocumented heating oil tank gets a REC and a recommendation for a tank locate and soil sampling. A property on former agricultural or industrial land gets a REC for the prior use and a recommendation for shallow soil sampling in the landscaped areas where residents and children have contact with the ground.

When a Phase 2 Follows

A multifamily Phase 2 is small compared to a gas station or a dry cleaner. A heating oil tank gets a geophysical locate, a handful of borings around the tank, and samples for petroleum hydrocarbons. Former farmland gets shallow soil samples across the site for arsenic and organochlorine pesticides. Historic fill gets a grid of shallow samples for metals and polycyclic aromatic hydrocarbons. Results get compared to residential screening levels, which are lower than commercial levels because people live there. An exceedance in a landscaped area can be addressed by capping with clean soil, and many state voluntary cleanup programs close residential fill sites that way.

Cost Relative to Other Property

The Phase 1 on a multifamily property prices near the middle of the range on the cost guide. Larger complexes cost more because the site walk covers more buildings. The add-ons for agency lenders push the total higher, and a buyer should get those quoted at the same time as the Phase 1 rather than after the lender asks.

Keeping the Review Short

Ask the seller for the prior Phase 1, any asbestos survey or operations and maintenance plan, the heating conversion records, and the tank closure documentation if a tank was pulled. Ask the property manager to walk the consultant through the maintenance shop and the pool equipment room. Get the lender's environmental requirements in writing before ordering the report so the consultant scopes to the right standard. A report that has to be upgraded to an agency lender's standard after it is written costs more than one written to that standard from the start. The SBA environmental requirements guide covers the rules for SBA-financed multifamily and mixed-use property.

Get Multifamily ESA Quotes

ESAquotes connects apartment buyers and their lenders with environmental professionals who know the agency lender standards. Submit the property address and receive quotes for a Phase 1 and any required add-ons from firms in your area.