While standard real estate metrics such as absorption rate look backward, a new measure developed by Mark Slade Homes suggests the housing market in Maplewood, New Jersey, is running significantly hotter than headlines indicate. Mark Slade, who leads Mark Slade Homes with partner MaryCeu Nunes, has tracked commuter markets across Essex and Union County weekly for nearly 17 years using a "hyper market index" that compares properties under contract against active listings, attorney review properties, and coming-soon inventory. When under-contracts exceed that combined figure, Slade calls it a hyper market.
As of late June 2026, the index readings across six tracked towns show Maplewood at 1.9, meaning there are nearly twice as many properties under contract as actively available, a significant imbalance favoring sellers. South Orange follows at 1.7, Union at 1.3, West Orange at 1.1, and Livingston at 0.8. Slade views any reading above 1.0 as a hyper market, indicating strong buyer demand relative to supply.
The index differs from absorption rate, which averages sales over six months and can obscure current momentum. For example, a slow December and strong March would be averaged together, while the hyper market index shows real-time conditions. This matters for sellers deciding when to list and buyers determining offer strategy.
Slade pulls his data directly from the Garden State MLS, the primary listing system for agents in this corridor. Zillow aggregates from multiple sources, including private and exclusive listings not on the Garden State MLS, meaning the two datasets measure different things. For buyers and sellers in Maplewood and South Orange, Zillow's market reads can be materially off from actual conditions in the Garden State MLS-driven market they are transacting in. Slade notes his data may miss homes listed on the NJ MLS, but for his clients, Garden State MLS data is most relevant.
The percent-over-asking figures reinforce the index. As of the week ending June 21, Maplewood's average sale price is $1,323,000, up roughly $220,000 from year-end 2025, with properties selling at 16.1% over asking. South Orange averages $1,221,000 at 15.5% over asking, up from 10.5% at year-end 2025. Both towns were below hyper market readings in December, with South Orange at 0.7. Livingston, with the second-highest average price at $1,350,000, shows only 2.9% over asking and a 0.8 ratio, indicating a different dynamic where supply outpaces buyer commitment.
For buyers waiting on the sidelines, the cost of deferring a purchase compounds quickly. In Maplewood, average prices have risen roughly 22% since year-end 2025, and properties consistently close well above asking. Slade's position is direct: with demand running at nearly twice available supply, buyers who sit out are watching the entry point move further away. For those navigating the market, the buyer resources page at Mark Slade Homes covers competitive offer situations, appraisal waiver programs, and market-specific guidance.
