$2 Billion in Industrial
Reductions

The County Gap

Not all counties over-assess industrial at the same rate. The gap between the best and worst performers is more than 2x — and the pattern is consistent enough to draw conclusions about methodology, not just individual properties.

Anoka County's 18.6% average reduction means that, on average, Anoka agreed its own industrial assessments were nearly one-fifth too high. Across 310 settled cases, the county reduced a total of $399 million in industrial EMV. For manufacturing properties specifically, the average reduction in Anoka was 51% — meaning the county's assessed values were roughly double what the market supported.

At the other end, Dakota County's 8.8% average is still meaningful — on a $10 million warehouse, that's an $880,000 EMV reduction — but the gap between 8.8% and 18.6% suggests a systematic methodology difference between counties, not just differences in individual properties. Counties running tighter assessment models produce smaller corrections. Counties relying on outdated or blunt models produce larger ones.

Five Patterns That Explain the Errors

The 2,270 settled cases aren't random. The reductions concentrate along five dimensions, each pointing to a specific failure in how counties assess industrial property.

1. New Construction Gets Over-Assessed

The conventional assumption is that new buildings are well-assessed — the county can see the construction cost, the building is modern and functional, and there's no depreciation to miscalculate. The data says otherwise. Buildings constructed in 2010 or later get reduced by 15.7% on average — essentially the same rate as pre-1970 buildings (15.9%). The middle decades (1970s–2000s) actually perform better, averaging 11–14%.

The problem is straightforward: counties assess new construction at or near replacement cost. But the market often pays less than replacement cost, especially for speculative flex and warehouse built ahead of demand. An investor buying a brand-new 150,000-square-foot flex building prices it based on the rent roll, the cap rate, and the competitive landscape — not on what it cost to build. When construction costs run ahead of what the income stream supports, the county's cost-based assessment overshoots the market.

This is especially acute in Anoka County, where multiple brand-new flex buildings along the Bunker Lake corridor in Blaine — built in 2022 and 2023 — were reduced by 26% to 46% from their original assessments. A 195,000-square-foot flex building assessed at $29.5 million was reduced to $16 million. A 147,000-square-foot building assessed at $24.7 million was reduced to $15.9 million. These aren't old, functionally obsolete facilities. They're modern buildings that the county valued at construction cost when the market valued them at substantially less.

2. Small Buildings Get Hit Hardest

Warehouses under 25,000 square feet are reduced by 18.1% on average — nearly double the rate of 100,000-to-200,000-square-foot buildings (10.5%). The pattern is monotonic: as building size increases, the assessment error decreases, with a slight uptick at the 200K+ range (likely driven by specialized distribution facilities with unique characteristics).

The explanation is resource allocation. County assessors use mass-appraisal models calibrated on the properties that represent the most tax revenue — which are the larger buildings. Smaller properties get less individual attention, more approximation from the model, and less frequent physical inspection. A 15,000-square-foot warehouse doesn't generate enough tax revenue to justify the assessor's time for a detailed review, so it gets assessed by formula. And the formula, on average, runs 18% hot.

3. Flex Is Not Warehouse

Flex properties — buildings that combine warehouse/distribution space with significant office or showroom components — get reduced at the highest rate of any industrial subtype: 14.4% average, with 25% of cases receiving 20%+ cuts. The problem is classification. County mass-appraisal models frequently treat flex and warehouse as the same product, running them through the same per-square-foot benchmarks and the same comparable sets. The market doesn't.

A flex building with 30% office buildout competes in a different market than a bulk warehouse with 4% office. The rent per square foot is different, the cap rate is different, the tenant profile is different, and the resale comparables are different. When a county derives adjustment rates from a dataset that mixes both — as happened in Diamond Lake Road Industrial Owner v. Hennepin County (April 2025) — the resulting adjustments are unreliable for either subtype. The Tax Court rejected a 42-sale adjustment dataset on exactly these grounds, finding that "market delineation and segmentation should be the first step in valuation modeling."

4. Pre-1970 Functional Obsolescence

Buildings constructed before 1970 get reduced by 15.9% on average. The driver is functional obsolescence — the gap between what a 1960s industrial building provides and what the modern market requires. Low clear heights (under 16 feet when modern distribution needs 28+), inadequate loading (too few dock doors, no drive-in capability), outdated layouts (multi-story, column-heavy, narrow bays), and insufficient power/HVAC all reduce the property's utility relative to what it would cost to build new.

County cost approaches frequently understate functional obsolescence. The cost approach starts with replacement cost new and deducts depreciation — but the depreciation estimate rarely captures the full extent of functional inadequacy. In ACS EGF v. Polk County (2009), the court found $57.5 million in total depreciation on an industrial facility, including a significant functional obsolescence component that the county's appraiser had understated. The court noted that functional obsolescence "captures the loss in value" from features that "do not add to the property's value in an amount equal to their cost" — precisely the situation with pre-1970 industrial buildings that have features (low ceilings, multi-story layout) that modern users don't want and won't pay for.

5. The Comparable Selection Problem

Cutting across all four patterns above is a methodological issue: the comparables counties use to support their assessments frequently don't match the subject property. Wrong-type comparables (flex mixed with warehouse), wrong-size comparables (56% of the subject's square footage), and wrong-market comparables (suburban comps for an urban property, or outstate comps for a metro property) all inflate the assessed value because they introduce noise that the adjustment process can't fully correct.

The Tax Court has addressed this in multiple industrial decisions. In Diamond Lake, a 42-sale mixed-subtype dataset was rejected. In Silgan v. Scott County (2014), the court scrutinized size adjustments on a distribution warehouse. In Medline Industries v. Hennepin County (2019), the court analyzed external obsolescence from overbuilding in the warehouse market. In Archway Marketing Services v. Hennepin County (2015), comparable adjustments for clear height, office area, and dock doors were examined at the property-by-property level. The through-line across these cases: when the comparable set doesn't match the subject, the assessment doesn't match the market.

These aren't contested trial results where reasonable people disagree. They're negotiated stipulations — values the county's own attorney agreed were too high.

What This Means for Industrial Owners

$2.09 billion in settled reductions across 2,270 cases means that, on average, every industrial property that went through the petition process came out with a 13.8% lower assessed value. One in four warehouse petitions achieved a 20%+ cut. The counties agreed to these numbers — they're not aspirational, they're realized.

If your property fits any of these five patterns — new construction assessed at cost, small building under 50,000 square feet, flex classified as warehouse, pre-1970 with functional obsolescence, or comparables that don't match your property — your assessment is worth reviewing. The data says the odds are strongly in your favor.

The petition deadline for 25pay26 is April 30, 2026. For 26pay27, open book meetings are running now through June. For a deeper look at the comparable-selection doctrine, see our research note on Diamond Lake v. Hennepin County.