Warren Township is a large-lot residential community in Somerset County, zoned from one-acre minimums up to six acres in its most rural districts. Its housing spans mid-century construction through contemporary custom homes, and that range, combined with the township’s mix of utilities, makes the inspection profile here different from a typical suburban borough.
Well and Septic Are Common in Warren
Warren has municipal sewer service through the Warren Township Sewer Department and public water from New Jersey American Water in parts of the township. Many other properties are on private well and private septic. Both arrangements are common here, so the first thing to establish about any Warren home is which one it has.
If the property is on a private well, water quality testing is warranted, and New Jersey’s Private Well Testing Act applies to most residential real estate transfers involving a well. If it is on septic, the system needs a dedicated septic inspection. On Warren’s larger lots, evaluating a drain field is specialist work that falls outside the scope of a standard home inspection. Arrange both evaluations before the expiration of your inspection contingency, because scheduling a septic contractor and waiting on well water lab results both take time.
Radon: Warren Is a NJDEP Tier 1 Municipality
The New Jersey Department of Environmental Protection designates Warren Township Tier 1, its highest radon potential category. In the state’s tier assignment data, 3,866 Warren homes had been tested and 1,191 of them, about 31 percent, measured at or above the EPA action level of 4 pCi/L. That is close to one in three.
Radon testing is a standard recommendation on every Warren home inspection. Michael is a licensed New Jersey Radon Measurement Technician, License #MET10521.
What the Housing Stock Means for an Inspection
Warren built out late. The township grew from roughly 3,300 residents in 1950 to about 8,600 by 1970, and the single largest share of its housing went up in the 1980s. Only about 9 percent of the housing stock predates 1950, and roughly 41 percent predates 1980 (U.S. Census Bureau, American Community Survey 2019-2023 5-year estimates, Table B25034).
Because most Warren homes were built from the 1970s onward, the recurring findings here are the ones that come with 30 to 50 year old systems: original HVAC equipment, water heaters and roof coverings that have reached or passed their expected service lives, even in houses that still present as modern. In the smaller older and mid-century portion of the stock, the specific items worth checking are aluminum branch circuit wiring in properties built during the 1965 to 1975 window, and galvanized steel supply piping in pre-1970 homes, which is at or approaching the end of its service life. Any home built before 1978 should be assumed to contain lead-based paint.
Underground Oil Tanks
Warren properties with a history of oil heat are candidates for an underground storage tank scan, particularly those built before the mid-1980s. Many conversions to gas were completed without properly decommissioning the buried tank. On Warren’s larger lots a tank can sit well away from the house and be entirely overgrown, so scanning equipment is often necessary to locate one. An undiscovered leaking tank can be expensive to remediate, and the exposure is not knowable until the tank is found and assessed, which is why this belongs before the expiration of your inspection contingency rather than after closing.
Schedule Your Warren Township Home Inspection
Call (973) 812-5100 between 8 AM and 8 PM on business days, or 8 AM to 5 PM on weekends.
Accurate Inspections, Inc. | 56 Woodland Drive, Woodland Park, NJ 07424 | Inspecting NJ Homes Since 1993 | NJ Licensed Home Inspector GI0121
