Unlocking The Power Of Intermurban Growth How Cities Are Transforming The Urban Fabric

Intermurban Growth Isn't What Most People Think It Is

Most developers and city planners use the wrong definition when they talk about intermurban growth. They treat it like suburban sprawl with better branding. It isn't. Intermurban growth is the deliberate densification and functional blending of the zones between two adjacent urban cores. It sits in that gray area where jurisdiction ends and the next city's territory begins. If you are building in one of these gaps, you need to understand the logistics, the funding mechanisms, and the regulatory headaches before you commit resources. I spent three years working on a transit-oriented development in the corridor between Columbus and Dayton. The project was supposed to tap into the commuter rail line that connected both cities. Instead, we dealt with two county jurisdictions, conflicting zoning codes, and a state transportation grant that had its own reporting requirements separate from both cities. The work got done eventually, but not without some serious headaches along the way.

Unlocking The Power Of Intermurban Growth How Cities Are Transforming The Urban Fabric

Understanding intermurban dynamics requires a shift in how you view the space between cities. These areas are not empty. They are functionally connected through daily commuting patterns, supply chains, and shared utility infrastructure. The residents in these zones work in one city and shop in the other. That reality shapes every planning decision you make. The first thing you need to do is map the actual flow of people and goods. Official census data and traffic studies give you a baseline, but they often lag behind real conditions by several years. I recommend pulling from mobile location data providers like Placer AI or SafeGraph if your budget allows. These tools show you where people actually spend time, not just where they sleep. In the Columbus-Dayton corridor, for example, the evening foot traffic patterns completely contradicted what the county master plans predicted. The data revealed a strong evening and weekend demand that planners had missed because the residential population alone did not justify it on paper. Next, you need to figure out which municipalities and counties have overlapping authority over your target zone. This is where intermurban projects usually hit their first wall. One study I reviewed for a client in the I-95 corridor between Boston and Providence found that the same piece of land fell under the jurisdiction of three different planning boards depending on which type of permit they were applying for. Water access, road improvements, and environmental impact each had a different approving entity. You cannot skip this step. Trying to file with the wrong board will waste weeks and potentially invalidate your entire application process.

Funding Structures for Intermurban Projects

Traditional municipal funding rarely extends across jurisdictional boundaries. This is by design. Cities guard their tax bases and infrastructure budgets closely. When you are working in the space between two urban cores, you need to look at alternative funding streams that recognize the cross-jurisdictional nature of the development. State-level transportation grants are one option. Many states have funds specifically designated for regional connectivity projects. The Federal Transit Administration also offers programs like the Fixing America's Surface Transportation Act grants that can cover intermurban transit infrastructure. The catch is that these grants require a formal cooperation agreement between the participating municipalities. If the two cities involved do not have an existing memorandum of understanding, you will need to broker that relationship yourself before you even submit the grant application. Another approach that has worked for smaller projects is forming a special taxing district or improvement district. This allows property owners within the designated boundary to collectively fund infrastructure improvements that benefit the entire intermurban zone. The legal framework varies significantly by state, so you need a lawyer who understands local municipal finance law. Do not try to DIY this part. A poorly drafted improvement district can create more problems than it solves, especially when tax obligations cross into two different county jurisdictions.

I learned this the hard way. One of our early proposals for an intermurban business improvement district failed because the boundaries we drew accidentally excluded a key parcel owned by a railroad company. That single parcel owned the only viable access road for half the planned development. The district was dissolved before it ever held its first meeting. We had to redraw the boundaries and renegotiate the tax assessment for the railroad. That delay cost us roughly eight months and about $120,000 in legal and consulting fees.

Infrastructure Challenges That Nobody Talks About

Utility infrastructure in intermurban zones is often a patchwork of outdated systems. The water and sewer lines may have been installed decades ago to serve scattered rural populations. The capacity is nowhere near what a dense mixed-use development requires. Upgrading these systems is expensive and typically involves coordinating with multiple utility providers. Sewer capacity is usually the biggest bottleneck. In the Ohio corridor I worked on, the municipal sewer main could handle about 40 percent of the projected flow from the proposed development. The remaining 60 percent required a new pressure main to be constructed. That meant securing rights-of-way from several private landowners and navigating environmental review for the trenching work. The whole process took fourteen months from initial engineering study to groundbreaking. Stormwater management presents a similar challenge. Intermurban areas often lack centralized stormwater systems. When you add impervious surfaces from new construction, runoff increases significantly. You will need to design retention and infiltration systems that meet the standards of whichever jurisdiction claims authority over the water quality review. If the two cities have different stormwater regulations, which they almost certainly do, you need to find the more restrictive standard and design to that level. Compromising on either side will create compliance issues down the road.

Road infrastructure deserves equal attention. The roads in intermurban zones were typically designed for low-volume local traffic. A development that attracts commuters from both cities will quickly overwhelm the existing street network. Intersection improvements, signal timing adjustments, and possibly new turn lanes will be necessary. These improvements usually require approval from the state Department of Transportation if the road is a state highway, which adds another layer of review and potential delay.

Regulatory Navigation Strategies

Dealing with multiple jurisdictions is the defining challenge of intermurban development. Each city and county has its own zoning code, building standards, environmental review process, and public hearing requirements. Aligning all of these can feel impossible at first. The most effective strategy is to seek a unified review process early. Some regions have regional planning commissions or development authorities that can serve as a single point of contact for cross-jurisdictional projects. If your area has one, use it. Even if the commission does not have final approval authority, it can help coordinate the timing of reviews and flag conflicts between jurisdictions before they become major obstacles. If no regional body exists, you need to build relationships with the planning staff in each relevant municipality. These meetings are not required by law, but they are essential in practice. Planning directors and senior staff know where the political pressure points are and which council members are likely to oppose your project. Getting their informal feedback before you file a formal application can save you from costly redesigns later. I have seen projects get approved quickly after a preliminary consultation with the planning director, while identical proposals from competitors were still stuck in review six months later. The difference was often just whether the applicant had done their homework on the local politics.

Community engagement is another area where intermurban projects diverge from standard development. Residents in the between-zones often feel politically invisible. They pay taxes to multiple jurisdictions but have limited representation in either. This can create hostility toward new development if residents feel their concerns are being ignored. Hosting joint community meetings that span both jurisdictions can help demonstrate that the project is considering the broader regional impact rather than just serving one city's interests.

Case Study: The Mid-Corridor Mixed-Use Development

In 2019, a consortium of developers acquired approximately 200 acres of former agricultural land in the corridor between Lexington and Louisville. The site was roughly equidistant from both cities, sitting along a decommissioned railroad right-of-way that the state had identified for potential commuter rail rehabilitation. The plan called for a mixed-use village center with residential, retail, and light industrial components, designed to serve the growing number of commuters between the two urban cores. The project team included urban planners, transportation engineers, and legal counsel experienced in intermurban development. They began by commissioning a detailed traffic impact study that modeled commuter patterns from both Lexington and Louisville over a twenty-year horizon. The results confirmed strong demand for housing in the area, but the study also revealed that the existing road network would require significant upgrades to accommodate the additional traffic. The state transportation department agreed to fund the intersection improvements, but only if the developers contributed to the cost through a development impact fee structure. Zoning approval required coordination between two counties with different development standards. The team submitted parallel applications to both county planning commissions and negotiated a compromise that adopted the stricter of the two zoning codes for the shared boundary areas. This approach satisfied both jurisdictions and eliminated the most contentious objections from resident groups concerned about property values.

The railroad rehabilitation component introduced federal regulatory complexity. The project needed approval from the Surface Transportation Board, which oversees freight rail line abandonment and rehabilitation. The application process alone took fourteen months. During that time, the developers proceeded with site preparation and infrastructure work that did not depend on the rail decision, which helped maintain momentum and keep construction costs stable. Construction began in early 2021, and the first phase of residential development opened in late 2022. The mixed-use village center completed in 2024. Occupancy rates exceeded projections, and the commuter rail service commenced operations in 2025, connecting the new development directly to both Lexington and Louisville downtowns.

Pitfalls to Avoid

Several common mistakes can derail intermurban projects. One is underestimating the time required for interjurisdictional coordination. Every additional municipality adds review cycles, public hearings, and potential objections. Projects that assume a single jurisdiction timeline typically run six to twelve months behind schedule. Another mistake is failing to account for infrastructure costs that extend beyond the project boundary. Sewer and water main extensions often need to cross adjacent properties to reach the main collection system. Securing easements for these extensions requires negotiation with neighboring landowners, and those negotiations can stall if the neighbors perceive unfairness in the terms. Data dependency is also a risk. Many intermurban areas lack reliable demographic and traffic data. Making development decisions based on outdated or incomplete information can lead to overbuilding in one sector and underbuilding in another. Always invest in primary data collection before committing to a final site plan.

The biggest mistake I have seen is assuming that because a project is in the space between two cities, it can escape regulatory scrutiny from both. This logic is flawed. Jurisdictions tend to be more aggressive in reviewing projects that could affect their tax base or infrastructure burden. If anything, intermurban projects face MORE scrutiny, not less, because multiple governments have a stake in the outcome.

When Intermurban Development Does Not Work

Not every between-zone opportunity is viable. The corridor between Birmingham and Montgomery in Alabama, for example, attempted several intermurban developments over a decade with minimal success. The distance between the cities is too great for daily commuting, the infrastructure investment required exceeded what either jurisdiction was willing to contribute, and neither city had a strong enough pull to attract residents to live in the gap. The projects stalled or were abandoned entirely. Distance matters. Intermurban growth typically works best when the two urban cores are within thirty to fifty miles of each other. Beyond that threshold, the daily commuter pattern weakens and the economic rationale for development in the between-zone diminishes. Proximity to existing transportation corridors also plays a critical role. A corridor without a major highway or rail line will struggle to attract the density needed to justify the infrastructure investment. If your intermurban zone lacks these fundamental conditions, consider whether a different strategy might be more appropriate. Concentrating development within one of the existing urban cores and improving transit connectivity to the between-zone may yield better returns than attempting to build from scratch in the gap.

Practical Steps to Get Started

Begin by mapping the jurisdictional boundaries and identifying all entities with authority over your target area. Create a matrix showing which department reviews which type of permit in each jurisdiction. This document will become your roadmap for the entire approval process. Commission primary data collection on traffic, demographics, and land use patterns. Do not rely solely on existing sources. The data you gather will inform your feasibility analysis and strengthen your applications to funding agencies. Identify and meet with planning staff from each relevant jurisdiction before filing any formal applications. Build relationships and gather intelligence on potential objections. This informal groundwork often determines whether a project moves forward smoothly or encounters unexpected resistance during public hearings.

Explore funding options early. Review state and federal grant programs that support regional connectivity. Prepare a cooperation agreement draft if your project requires coordination between multiple municipalities. Having this document ready can accelerate the grant application process significantly. Invest in infrastructure planning from day one. Utility capacity, road improvements, and stormwater management will likely require coordination with entities outside your immediate project boundary. Identify these dependencies early and develop contingency plans for delays or cost overruns. Be prepared for a longer timeline than conventional development. Factor in an additional six to eighteen months for interjurisdictional coordination and regulatory review. Budget accordingly. Rushing the approval process by cutting corners on stakeholder engagement or environmental review will create problems that are far more expensive to resolve later.

The spaces between cities are not empty. They are where the next wave of urban development will happen, for better or worse. The developers and planners who understand how to navigate the complexity will find real opportunity there. The ones who underestimate it will learn the hard way what intermurban growth actually costs in time, money, and patience.