The NAHB/First American Improving Markets Index (IMI) added 29 new metropolitan areas in February, bringing the total to 98 metro areas across 36 states. This expansion signals that housing market recovery continues to broaden geographically, creating opportunities for home builders in markets that had previously lagged behind the national trend. Understanding what drives this index and how to interpret its signals can help builders make smarter decisions about where to invest, how to price homes, and when to ramp up production.
The IMI is more than a simple list of improving cities. It is a data-driven tool that measures whether individual metro areas have reached a genuine turning point after a housing downturn. For builders, the index provides a valuable signal for navigating housing market cycles and planning community development strategies. This article explores how the index works, what the February additions reveal about the broader housing landscape, and how builders can use this information to guide business planning.
How the Improving Markets Index Measures Housing Recovery
The NAHB/First American Improving Markets Index was designed to identify metropolitan areas where housing markets have bottomed out and are showing sustained improvement. Unlike national housing data, which can mask wide regional variation, the IMI evaluates each metro area individually against its own recent low point. This approach gives builders a clearer picture of which local markets are truly gaining momentum.
The Three Core Data Points
Every metro area on the IMI list must demonstrate improvement across three specific economic indicators for at least six consecutive months:
- Employment growth supplied by the Bureau of Labor Statistics. Job creation drives housing demand because employed households have the income and confidence to purchase homes.
- House price appreciation reported by Freddie Mac. Rising home values signal that demand is outstripping supply and that buyers are willing to pay more for available homes.
- Single-family housing permit growth reported by the U.S. Census Bureau. Permit activity reflects builder confidence and indicates that developers see enough demand to justify new construction.
A metro area must show positive movement in all three measures relative to its trough before it qualifies for the list. This three-factor approach prevents any single volatile metric from distorting the overall assessment.
Why Six Consecutive Months Matters
The six-month qualification window is a deliberate design choice. Housing markets can experience temporary spikes in employment or permits due to seasonal factors, government stimulus, or one-time events. Requiring sustained improvement across half a year filters out false positives and ensures that only metro areas with genuine, durable recovery momentum make the list. Builders looking at the IMI can therefore treat new additions as credible growth signals rather than statistical noise.
February 2025 Additions and What They Reveal
The February IMI added 29 metro areas, bringing the total to 98. Among the first-time additions were major metropolitan centers including Miami, Boston, Detroit, Kansas City, Portland (Oregon), Memphis, and Salt Lake City. The breadth of these additions suggests that housing recovery is no longer confined to the Sun Belt or secondary markets, but is spreading into larger, more established urban economies.
New Additions at a Glance
The table below summarizes selected first-time additions to the February IMI, grouped by region, along with the dominant economic drivers behind each metro area’s improvement:
| Metro Area | Region | Key Recovery Driver | Builder Opportunity |
|---|---|---|---|
| Miami, FL | Southeast | Strong population inflow, rebounding tourism employment | Luxury and high-density multifamily |
| Boston, MA | Northeast | Tech and education sector employment growth | Urban infill and transit-oriented development |
| Detroit, MI | Midwest | Manufacturing resurgence and downtown revitalization | Affordable single-family and renovation |
| Kansas City, MO | Midwest | Steady job growth and affordable housing demand | Entry-level and workforce housing |
| Portland, OR | Northwest | Migration from California, tech sector expansion | Missing-middle housing and townhomes |
| Memphis, TN | South | Logistics and distribution center growth | Build-to-rent and starter homes |
| Salt Lake City, UT | Mountain West | Population growth and diversified economy | Master-planned communities |
These metro areas span every region of the country and represent a diverse mix of economic foundations. What they share is a demonstrated ability to generate employment, support rising home values, and sustain builder permitting activity over a six-month period.
Metro Areas That Dropped Off the List
Not every metro area maintained its position. The February index also saw several cities drop off due to softening housing prices, including San Jose, California; Washington, D.C.; Kankakee, Illinois; New Orleans; Worcester, Massachusetts; Jackson, Mississippi; and Sherman, Texas. These removals highlight an important feature of the IMI: it is dynamic and responsive to changing conditions. A metro area that showed improvement six months ago can fall off if housing prices weaken or job growth stalls.
For builders operating in or considering these markets, a removal from the IMI does not necessarily signal a crisis. It may indicate a temporary correction, an overheated market returning to equilibrium, or a seasonal slowdown. The key is to combine IMI data with local market intelligence before making strategic decisions.
What 98 Improving Metro Areas Mean for Home Builders
The expansion of the IMI to 98 metro areas across 36 states has several practical implications for home builders. When recovery is concentrated in a handful of markets, competition for lots, labor, and materials intensifies in those areas. A broader recovery spreads demand across more markets, giving builders more options for where to build and what product types to offer.
Market Diversification Opportunities
With nearly 100 metro areas showing sustained improvement, builders have more opportunities to diversify their geographic footprint. Builders who had concentrated operations in a single region can now consider expanding into IMI-listed markets where housing starts data confirms rising demand. Diversification reduces the risk of being overexposed to any single local economic downturn.
- Evaluate IMI-listed markets against your company’s operational strengths and building expertise.
- Consider joint ventures with local builders in markets where you lack a direct presence.
- Monitor permit volumes in candidate markets to validate that IMI improvement is translating into actual construction activity.
- Assess land availability and entitlement timelines before committing to market entry.
Product Mix Adjustments
Different metro areas at different stages of recovery require different product strategies. In markets that are newly added to the IMI, such as Detroit or Memphis, builders may find stronger demand for entry-level and workforce housing aimed at first-time buyers. In markets that have been on the list for longer periods, such as those in the Sun Belt, demand may skew toward move-up and luxury product types.
A strategic approach to product mix includes:
- Analyzing local employment data to understand what income groups are growing fastest.
- Reviewing permit trends to see what product types are being built versus what is undersupplied.
- Matching price points to local median income levels to ensure affordability within the target buyer segment.
- Testing smaller lot sizes and attached product types in higher-cost metro areas where land is constrained.
Timing Your Market Entry
The six-month qualification window of the IMI gives builders a measurable timeframe for evaluating market entry. A metro area that has been on the list for two or three reporting cycles offers more confirmation of sustained recovery than one that just appeared. Builders can use this information to stage their investments, starting with land option agreements rather than outright purchases in newer IMI markets.
Using Market Data to Guide Builder Strategy
The IMI is one of several data sources builders should integrate into their market analysis. Used alone, no single index provides a complete picture. Combined with local market research, demographic trends, and competitor analysis, however, the IMI becomes a valuable component of a broader data-driven approach to building a stronger home building business.
Complementary Data Sources
Builders can cross-reference IMI data with several other publicly available data sets to strengthen their market assessments:
- Housing starts and building permits from the U.S. Census Bureau provide monthly data on new construction activity at the national, regional, and local levels.
- Employment reports from the Bureau of Labor Statistics offer detailed industry-level job growth data that reveals which sectors are driving local economic expansion.
- Home price indices from Freddie Mac and FHFA track price trends across metro areas and price tiers.
- Population and migration data from the U.S. Census Bureau shows where households are moving and what age groups are growing.
Practical Applications for Builders
Once a builder has identified promising markets using the IMI and complementary data, the next step is translating that information into operational decisions. Here are three practical applications:
- Land acquisition timing. Use IMI additions as a trigger to begin site identification and due diligence. Being early in a recovering market gives builders access to better land positions at lower prices than waiting until recovery is widely recognized.
- Product development planning. Match the product type to the recovery stage. New IMI markets with employment growth concentrated in service and logistics sectors typically need affordable product. Established IMI markets with professional services growth can support higher price points.
- Strategic partnerships. In markets where a builder has no existing presence, consider partnering with local builders or land developers who understand the submarket dynamics. The IMI confirms macro conditions, but local knowledge determines project success.
Avoiding Common Data Pitfalls
Even the best data can lead builders astray if misinterpreted. Here are common mistakes to avoid when using the IMI and related market data:
- Confusing correlation with causation. A metro area may show improving permits and prices because of a large employer relocation or a one-time infrastructure project. Verify that the improvement is broad-based, not event-driven.
- Ignoring local regulatory conditions. Some IMI-listed markets have restrictive zoning, long entitlement timelines, or high impact fees that erode builder margins. Include regulatory analysis in your market assessment.
- Overlooking adjacent markets. A metro area may be too expensive or land-constrained for entry, but nearby suburbs or smaller cities within the same commuting zone may offer better opportunities.
- Neglecting your competition. If several large national builders are already active in an IMI-listed market, land prices and subcontractor availability may already be elevated.
Builders who develop smart strategies for navigating any housing market condition and who consistently apply data analysis to their planning will be better positioned to capture opportunities as they arise. The IMI is a useful starting point, but the builders who succeed are those who layer local insight on top of national data.
Building a Recurring Market Analysis Routine
Market conditions change monthly, and the IMI is updated each month. Builders who make market data analysis a recurring business practice gain a competitive advantage over those who review it sporadically. A practical routine includes:
- Review the IMI on the day it is released each month, noting new additions and removals.
- Cross-reference your current markets against the list to see if they are improving, stable, or declining.
- Update your land acquisition pipeline based on IMI trends and local permit data.
- Discuss market signals at monthly leadership meetings to align sales, production, and land strategies.
By integrating the IMI and related data sources into a regular planning cadence, builders can make proactive rather than reactive decisions. The February additions to the IMI confirm that housing market recovery is not a narrow phenomenon, but a broad-based trend spanning every region of the country. For builders who pay attention to the data, those 98 improving metro areas represent 98 opportunities to build smarter.