# Altus Group Says U-Haul Migration Predicts Self-Storage Oversupply, Not Demand, on October 7, 2026 > Phoenix rents rose 19% from Q3 2021 to Q3 2022 before correcting. Austin's pipeline is easing while Phoenix still shows 6.9% under construction. Mauro tells owners to push rates now and buyers to wait, the same week Andover and Heitman bet on discounted portfolios. - URL: https://www.yourcaio.co/news/altus-u-haul-migration-self-storage-supply-signal-october-2026 - Published: 2026-10-08 - Author: David Cartolano (https://www.yourcaio.co/about) - Category: Market Trends - Tags: Altus Group, Migration, U-Haul, Supply Pipeline, Street Rates - Source: [CRE Daily](https://www.credaily.com/briefs/u-haul-migration-signals-self-storage-supply-not-demand/) ## Key Takeaways - Altus Group's Adam Mauro wrote October 7, 2026 that U-Haul migration is better read as a self-storage supply signal than a demand signal, because developer capital follows in-migration and depresses rents for years. - From 2021 to 2024, the strongest U.S. in-migration states captured roughly 38% of self-storage acquisition activity, concentrating capital where oversupply followed, per CRE Daily's summary of Altus research. - Altus describes a development clock: demand spikes within one year of migration, storage delivers in 18 to 36 months, rates bottom in years two and three after completion, and recovery takes three to four years. - Phoenix market rents rose about 19% from Q3 2021 to Q3 2022 before returning toward pre-boom levels; as of October 2026 Phoenix's under-construction pipeline equals 6.9% of stock while Austin shows easing supply and rate growth near breakeven. - National new self-storage supply forecast for 2026 is down 19% year over year, which Altus cites as an early sign migration-winner markets may be approaching recovery. **Altus Group** valuation director **Adam Mauro** argued **October 7, 2026** that **U-Haul migration data is a self-storage supply signal**, not a pure demand green light: the strongest in-migration states captured **roughly 38% of U.S. acquisition activity from 2021 to 2024**, then delivered **the weakest realized rent growth** as new facilities leased up, per **CRE Daily's** summary of Altus research. The thesis lands the same morning [Andover Properties and Heitman launched joint ventures on 106 properties](https://www.yourcaio.co/news/andover-properties-heitman-106-property-joint-venture-october-2026), betting discounted basis beats migration headlines. Both stories can be true: **capital is buying** while **street rates still soften**. --- ## How Does Migration Create Oversupply in Storage Markets? Mauro's sequence is mechanical. **Demand spikes within one year** of a migration surge because households need interim space during moves. **Storage takes 18 to 36 months to build**, so developers who see U-Haul inflows in year one deliver competing square footage in years two and three. Rates then **bottom in the second and third years after major completions**. Recovery typically needs **three to four years** once absorption catches up. That clock explains why [national advertised asking rents fell 1.9% year over year in August 2026](https://www.yourcaio.co/news/yardi-matrix-september-2026-advertised-rates-1-9-percent-august-2026) even as household penetration rose in SSA demand studies. Texas and Florida exemplify the pattern: high residential permit counts and storage pipelines followed migration winners. Capital markets reinforced it. **38% of acquisitions from 2021 to 2024** landed in the strongest in-migration states, per Altus via CRE Daily, concentrating bids exactly where deliveries were queued. --- ## What Happened to Phoenix, Houston, Dallas, and Atlanta? Altus uses **Phoenix** as the textbook case. Market rents rose about **19% from Q3 2021 to Q3 2022**, then retraced toward pre-boom levels as pipeline product hit the market. **Houston, Dallas, and Atlanta** posted among the **weakest realized rent growth** across major metros over the following two years despite continued population inflows. October 2026 status checks from the same coverage: | Market | Altus October 2026 read | |--------|-------------------------| | Phoenix | Mid-correction; pipeline **6.9%** of stock | | Austin | Pipeline easing; rate growth approaching breakeven | | Coastal / Midwest slow-growth | Best returns since late 2024 | [Yardi Matrix's September 2026 national outlook](https://www.yourcaio.co/news/yardi-matrix-september-2026-advertised-rates-1-9-percent-august-2026) still ranked **Phoenix** atop under-construction share at **6.2% of inventory in August**, down from 6.6% in July but far above the **2.1%** national average. Altus and Yardi are measuring the same hangover from different angles. --- ## What Should Owners and Buyers Do With Migration Data in 2026? Mauro's owner playbook is aggressive: **push rates now** while pricing power remains and **lock in existing tenants** before new deliveries arrive. That advice conflicts with operators who froze increases after [RentCafe's August 2026 street-rate declines](https://www.yourcaio.co/news/rentcafe-august-2026-street-rates-134-national-average-september-2026), but it matches submarkets where occupancy still clears 90% despite negative web rates. Buyers get the opposite message: **strong migration is a reason to wait**, not rush. Purchasing at a migration peak often means buying atop the development cycle, underwriting pro forma rents that new supply will undercut. The nuance for institutional capital is timing the **supply cliff**. Altus notes **national new supply forecast down 19% year over year in 2026**, the first sign migration-winner markets may be approaching recovery. That is why [Heitman's October 7 Andover joint ventures](https://www.yourcaio.co/news/andover-properties-heitman-106-property-joint-venture-october-2026) emphasize **below replacement cost** entry rather than peak street rates. --- ## How Does Migration Analysis Interact With 2026 Marketing Data? Migration and marketing tell different time horizons. [PODS's October 2026 Pulse Check](https://www.yourcaio.co/news/pods-moving-trends-pulse-check-florida-top-three-october-2026) still shows **Florida** among the top inquiry states. Altus would read that as **future supply risk** if developers respond, not automatic rent growth. [Market Apartments' October 6 Cubby integration](https://www.yourcaio.co/news/market-apartments-cubby-live-inventory-integration-october-2026) cites **StorageCafe survey data**: **28%** of consumers pick a facility primarily on **price**, and searches rose **23%** across the 150 largest U.S. cities in 2025. When pricing is the tiebreaker, operators in oversupplied migration metros cannot hide stale web rates behind inbound trucks. Lenders should stress-test the Altus clock on every Sun Belt loan maturity. [Trepp's September securitized occupancy stress](https://www.yourcaio.co/news/trepp-securitized-self-storage-occupancy-refinancing-stress-september-2026) already showed bifurcation between public REIT stabilization and legacy CMBS collateral. Migration overlays explain **why** some MSAs underperform despite population gains. --- ## The Numbers Worth Writing Down - **38%** of U.S. storage acquisitions (2021-2024) in top in-migration states - **19%** Phoenix rent rise (Q3 2021 to Q3 2022) before correction - **6.9%** Phoenix under-construction pipeline share (Oct. 2026 Altus cite) - **18-36 months** typical storage delivery lag after demand spike - **3-4 years** recovery window after major supply waves - **-19%** national 2026 new-supply forecast year over year - **October 7, 2026** publication date on CRE Daily / Yahoo syndication --- ## Migration Maps the Supply Curve, Not the Rent Check U-Haul trucks are easy to photograph. **Permit counts and pipeline percentages** are what actually steal pricing power. Altus's October 7 piece is a reminder that the best-performing storage markets since late 2024 were often **slow-growth**, not **high-inflow**. Operators who mistook migration for durable rent growth are still discounting on the web. The constructive read is forward-looking: with **2026 deliveries down 19%**, the same migration metros that hurt owners in 2024-2025 may finally be **absorbing**. Institutions are acting on that bet this week. Independents should map **local pipeline share** before they map **U-Haul rankings**. --- ## Sources - [U-Haul Migration Signals Self-Storage Supply, Not Demand](https://finance.yahoo.com/real-estate/articles/u-haul-migration-signals-self-171037755.html), Yahoo Finance / CRE Daily, October 7, 2026 - [Self Storage Market Outlook](https://www.yardimatrix.com/blog/self-storage-market-outlook/), Yardi Matrix, September 28, 2026 ## Frequently Asked Questions ### Why does Altus call U-Haul migration a supply signal for self-storage? Adam Mauro of Altus Group argues heavy in-migration attracts residential permits and storage developers. Demand jumps within a year, but new facilities deliver 18 to 36 months later and weaken street rates for years. Markets with the most migration often posted the weakest realized rent growth since late 2024. ### What share of storage acquisitions went to high in-migration states? CRE Daily's October 7, 2026 summary of Altus research says the strongest in-migration states captured about 38% of U.S. self-storage acquisition activity from 2021 through 2024. Capital concentrated where new supply was still delivering into 2025 and 2026. ### What should owners do in high-migration markets according to Altus? Mauro recommends pushing rates while pricing power remains and locking in existing tenants before new deliveries hit. The window matters because rate growth tends to bottom in the second and third years after major completions, then recovers over three to four years as absorption catches up. ### How does Phoenix illustrate the migration cycle? Altus cites Phoenix market rents rising roughly 19% from Q3 2021 to Q3 2022, then falling back as pipeline product leased up. Houston, Dallas, and Atlanta showed similar patterns. In October 2026 coverage, Phoenix still carried an under-construction pipeline equal to 6.9% of existing stock. ### Does migration data still matter for Florida operators in 2026? Yes, but carefully. [PODS's October Pulse Check](https://www.yourcaio.co/news/pods-moving-trends-pulse-check-florida-top-three-october-2026) still shows Florida inquiry strength, while [Yardi Matrix reported national advertised rates down 1.9% year over year in August 2026](https://www.yourcaio.co/news/yardi-matrix-september-2026-advertised-rates-1-9-percent-august-2026). Altus says combine migration reads with local pipeline percentages, not headlines alone. --- Cite as: David Cartolano, "Altus Group Says U-Haul Migration Predicts Self-Storage Oversupply, Not Demand, on October 7, 2026," YourCAIO.co, 2026-10-08, https://www.yourcaio.co/news/altus-u-haul-migration-self-storage-supply-signal-october-2026