Warren (IL) Investor Pulse Report (2025-Q4)

Investor ownership comprises 13.4% of the Single-Family Residential market in Warren County, with a total of 765 properties held by landlords.

Individual investors are the definitive force in this market, controlling 724 properties, which accounts for an overwhelming 94.6% of all investor-owned SFRs.

Company ownership is minimal, with corporate entities holding just 50 properties, or 6.5% of the investor portfolio, highlighting the local, small-scale nature of real estate investment in the area.

The vast majority of investor-owned homes are utilized as rentals, with 721 out of 765 properties (94.2%) being non-owner-occupied.

Investors in Warren County demonstrate a strong preference for cash acquisitions, with 606 properties owned outright compared to only 159 that are financed, a ratio of nearly 4 to 1.

The market consists of 832 distinct landlord entities, with 788 being individuals and just 44 being companies, reinforcing the dominance of mom-and-pop investors over institutional players.

In Q4 2025, landlords in Warren County acquired properties at a steep 57.1% discount compared to traditional homeowners, paying an average of $62,700 while homeowners paid $146,109.

This represents a significant financial advantage for investors, amounting to an average savings of $83,409 per property during the quarter.

The landlord-homeowner price gap exhibits extreme volatility, swinging from a $99,446 landlord premium (61.9%) in Q3 to the deep $83,409 discount in Q4, likely reflecting a small number of transactions with diverse property characteristics.

Earlier in the year, investors also secured major discounts, including a 74.2% discount ($103,772) in Q1 and a 58.2% discount ($87,470) in Q2, making the Q3 premium a notable anomaly.

Overall, average landlord acquisition prices have trended downward, dropping from $84,362 in 2024 to an average of $62,259 across 2025.

Investors accounted for 12.7% of all single-family home purchases in Warren County during Q4 2025, acquiring 7 of the 55 properties sold.

The entirety of this Q4 investor activity was driven by mom-and-pop landlords (1-10 properties), who made 100% of the landlord purchases.

New, first-time investors were a significant force, with 7 new single-property landlord entities entering the market and acquiring 4 properties, representing 57.1% of all investor buying activity.

Mid-size and institutional investors were completely absent from the purchasing market, with 0 properties acquired by landlords with portfolios larger than 10 homes.

This data highlights a market exclusively fueled by small-scale, local investment rather than large corporate buyers, with new entrants forming the most active segment.

The investor landscape in Warren County is overwhelmingly dominated by small-scale landlords, with those owning 1-10 properties (Tiers 01-04) controlling 97.4% of all investor-owned SFRs.

First-time or single-property landlords form the bedrock of the market, owning 504 properties, which represents a 62.5% majority share of the entire investor portfolio.

The concentration at the small end of the market is stark, with landlords owning 1-5 properties (Tiers 01-03) collectively holding 91.1% of all investor-owned housing.

Conversely, institutional-scale investment is virtually non-existent. The 1000+ property tier holds only a single property, accounting for just 0.1% of the market share.

This distribution underscores a market characterized by local, individual participation rather than large, consolidated corporate ownership.

Individual investors maintain majority ownership across nearly all portfolio sizes in Warren County, controlling over 92% of properties in every tier up to 20 units.

The transition to corporate dominance occurs only at the 21-50 property tier, where companies own 2 of the 3 properties (66.7%), marking the clear crossover point from individual to company control.

In the largest segment of the market, the single-property tier, individuals own 483 homes (94.3%) compared to just 29 owned by companies, showcasing the grassroots nature of entry-level investment.

Similarly, individuals own 96.3% of two-property portfolios and 92.7% of portfolios sized 3-5, reinforcing their control over the small landlord segment.

This pattern reveals that while companies exist across multiple tiers, they only achieve a majority stake in a narrow mid-size category, remaining a minority presence everywhere else.

Investor ownership in Warren County is geographically concentrated, with a single zip code, 61462, containing 497 investor-owned properties, representing 65.0% of the county's entire investor portfolio.

While 61462 leads by sheer volume, the highest rate of investor penetration is found in zip code 61415, where 17.5% of all SFR properties are investor-owned.

This distinction between high-volume and high-penetration areas highlights different market dynamics, with 61462 being the core hub and smaller zips like 61415 showing higher saturation.

Zip code 61447 emerges as a significant area for investment, appearing on both top lists with the third-highest count of investor properties (54) and the second-highest ownership rate (16.0%).

The top three zip codes by count (61462, 61473, and 61447) collectively hold 627 properties, which is 82.0% of all investor-owned SFRs in the county, showing extreme geographic clustering.

A major divergence exists in the market: while the overall landlord pool remains strong net buyers, institutional investors are actively selling off their limited assets.

In 2025, landlords collectively purchased 35 properties while selling only 10, demonstrating a clear strategy of accumulation with a 3.5-to-1 buy/sell ratio.

This net buying trend was consistent throughout the year, with a positive net acquisition of 6 properties in Q4 and 8 properties in Q2.

Conversely, the institutional tier (1000+ properties) acted as net sellers, acquiring only 1 property while selling 4 in 2025, indicating a strategic retreat from the market.

Overall landlord transaction volume has slowed, with 49 properties purchased in 2024 compared to 35 in 2025, a decrease of 28.6% year-over-year.

In Q4, landlord activity accounted for 13.5% of all SFR transactions in Warren County, with investors participating in 10 of the 74 total market deals.

The smallest investors paid the highest prices, as single-property landlords (Tier 01) averaged $75,000 per purchase, substantially more than the $25,000 to $45,000 paid by other mom-and-pop tiers.

This price premium for new entrants suggests they may be targeting higher-quality or more turn-key properties compared to more experienced small investors who may seek value-add opportunities.

There is a notable level of inter-landlord trading, as 28.6% of the properties acquired by single-property landlords were purchased from other investors, indicating portfolio recycling within the market.

All transaction activity was confined to mom-and-pop tiers, with institutional investors making zero transactions in Q4, reinforcing their passive role in the county.