The far southern edge of Johnson County — the stretch running from roughly 167th Street south through the 179th and 199th corridors toward Stilwell and the Spring Hill city limits — is in the middle of a road transformation that will define how these communities grow and what property values do over the next decade and beyond. The investments are funded, the projects are in capital improvement plans, and some are already under construction.

For homeowners already in this corridor and for buyers considering it, understanding what is planned, where it is happening, and what it means for daily life and property values is some of the most practical real estate intelligence available right now.

The East-West Framework: 179th Street and 199th Street

179th Street — The New Spine of Southern Overland Park

The 179th Street corridor has become the east-west anchor of the county's southernmost developed edge, and the number of projects converging on it reflects that. Several north-south roads are being extended, rebuilt, or newly connected to 179th, and the intersection at Quivira Road and 179th Street is now anchored by a roundabout as part of the Quivira Road reconstruction from 179th to 183rd Street — a project that also builds two new bridges over Wolf Creek and Wolf Creek Tributary and replaces the existing asphalt road with a concrete surface. Construction on this project began in spring 2025 and runs through late 2026.

To the east, Switzer Road from 167th to 179th Street is being rebuilt as an improved two-lane thoroughfare with roundabouts at both 175th and 179th streets, a new bridge over Coffee Creek, sidewalks, a multi-use trail, and bike lanes. That project is scheduled to begin in early 2026, funded through the OP Moves sales tax. The 175th Street corridor from 179th Street to Antioch Road is also being reconstructed as part of the same broader buildout, with a new roundabout at the 175th and 179th intersection and full trail and sidewalk infrastructure.

What this cluster of projects describes is a deliberate effort to turn the 175th to 179th zone into a proper urban-suburban transition — roads that can carry residential and commercial traffic safely, with pedestrian and cyclist infrastructure, drainage improvements, and intersection controls that signal long-term investment rather than deferred maintenance.

199th Street — From Rural Road to Future Arterial

The story on 199th Street is different in character but equally significant in implication. The Johnson County CARNP has designated 199th Street as a Type III arterial — the highest classification in the plan — meaning the county's long-range vision for this road is a four to six lane corridor with 150 to 200 feet of right-of-way. That is a dramatic transformation for what is currently described by the county itself as an unengineered and unimproved road.

Johnson County Public Works has identified 199th Street between Renner Road and Antioch Road as a corridor where safety improvements are needed as growth and traffic continue to increase in unincorporated Johnson County. The county has begun initial improvements, and the full arterial build-out is expected to follow as cities annex adjacent land and development warrants it. Spring Hill has already begun constructing a new section of 199th Street just north of the existing road from Ridgeview Road to Renner Road — a 1.21-mile stretch with new gutters, curbs, sidewalks, stormwater infrastructure, and a walking trail, completed as part of the city's active growth support effort.

For homeowners and buyers along 199th Street today, the Type III designation is the most important piece of context. It signals that this corridor is not going to stay a rural two-lane road. The question is timing, and timing depends on how fast development fills in from the north and from Spring Hill to the south.

The North-South Roads: Pflumm, Quivira, Antioch, and Black Bob

Pflumm Road

Overland Park has earmarked $14.79 million to improve Pflumm Road between 175th and 183rd streets, reconstructing it to two-lane thoroughfare standards with curb and gutter, storm sewers, sidewalks, and a roundabout at 175th Street. The project is in the 2024-2028 Capital Improvement Program with a planned construction window around 2029. This stretch of Pflumm currently serves a mix of residential neighborhoods, undeveloped parcels, and the Blue Valley school district boundary — and development interest along Pflumm in this zone is active, with a mixed-use residential and commercial project at 175th and Pflumm already approved in the form of the Wolf Creek Plaza duplex development.

Quivira Road

Quivira is one of the most active north-south corridors in the far south, with the 179th to 183rd Street reconstruction already underway and the 179th to 187th Street segment receiving $2.63 million in county funding for surface replacement and a new Wolf Creek bridge. County funding covers the stretch south of 179th while the city's capital program handles the stretch to the north. Quivira in this zone is already a connector between established neighborhoods to the north and the rural fringe near Stilwell to the south, and the reconstruction signals that the county and city are both investing in it as a lasting arterial rather than a transitional road.

Antioch Road

Antioch Road runs the full north-south length of southern Overland Park and is one of the most consequential connectors in the corridor. 167th Street from Switzer to Antioch received $16.35 million in reconstruction funding in 2024 and 2025, and multiple current and planned projects use Antioch as the eastern terminus — including the 175th Street reconstruction and the 199th Street improvements corridor that runs from Renner Road east to Antioch. As development fills in along the 179th to 199th Street zone, Antioch will carry a growing share of north-south traffic and its capacity and condition will directly shape how that growth is experienced by residents.

Black Bob Road

In Olathe, Black Bob Road from 153rd Terrace to 159th Street is being converted to a four-lane arterial with left and right turning lanes at each intersection, new sidewalks, curbs, stormwater infrastructure, and a bridge over Woodland Creek, funded at $3.75 million in 2025 county CARS program dollars. Black Bob runs north-south through western Olathe and connects directly to the 159th Street corridor — one of the most active residential growth zones in the city. The four-lane conversion is a direct acknowledgment that traffic volumes in this area have already outgrown what a two-lane road can safely carry.

What the Road Changes Mean for Home Values

The pattern playing out in southern Johnson County is one that has repeated itself in other parts of the county over the past 30 years — infrastructure precedes and enables residential growth, and properties closest to newly improved corridors see both increased developer interest and appreciation pressure from buyers who value access.

Johnson County's most recent property assessment showed the Spring Hill area posting appreciation of 9 to 11 percent — among the highest in the county — and county assessors pointed directly to improved access and attainable pricing as the drivers of that demand. The Ridgeview Road corridor through Spring Hill is actively seeing new construction, with the Garrett Ranch neighborhood underway at Ridgeview near Spring Hill High School and Wiswell Farms northeast of K-7 and 199th Street already selling homes at a pace that reflects genuine buyer demand for that corridor.

For south Overland Park specifically, the concentration of capital investment between 167th and 199th streets — across Pflumm, Quivira, Antioch, and Switzer — describes a buildout that will change the character of that area substantially within five to ten years. Neighborhoods that today feel like the far edge of the city will feel like the middle of an established community once these roads are built and the development they enable fills in around them.

What Homeowners in This Corridor Should Know Now

The Type III designation on 199th Street matters to current owners. A Type III CARNP designation means 150 to 200 feet of right-of-way. If you own property with frontage on 199th Street, understanding exactly where the county's right-of-way envelope sits relative to your property line is important before making structural improvements, planting mature landscaping, or adding fencing near the road edge.

Roundabouts signal long-term commitment. The county and city don't invest in roundabout construction at intersections they expect to remain lightly traveled. Every roundabout in the 175th to 183rd zone — at 175th and 179th, at 175th and Pflumm, at 179th and Quivira — is a structural signal that these intersections are being designed for sustained traffic volume, not temporary conditions.

Development is accelerating around you. The Indus Valley mixed-use development is proposed at 179th Street and US 69. Wolf Creek Plaza duplexes are approved at 177th and Pflumm. The Bluhawk retail expansion at The Boundary is adding 200,000 square feet of shops and dining just south of I-435. Each of these projects adds residents, retail customers, and traffic to the 179th corridor and increases the case for the road improvements that are already in the capital plans.

What Buyers Should Know

The south Overland Park and Stilwell corridor currently offers some of the most attainably priced homes in Johnson County relative to the school districts, park access, and community character on offer. The Blue Valley School District boundary runs through this area, and properties within it carry a consistent premium in buyer preference.

Johnson County's average existing home value now sits at approximately $508,000, with new construction averaging close to $800,000. The 199th Street zone in the Sprnghill areas offer entry points under those averages, in neighborhoods where the infrastructure trajectory is clearly upward and where the capital commitments from both the county and the City of Overland Park are publicly funded and already in motion.

The roads being rebuilt, extended, and reclassified in this corridor are not speculative future plans — they are funded capital improvement projects, CARNP designations with legal standing, and active construction timelines. Buyers who understand that context can make more informed decisions about which properties sit in the path of long-term improvement and which sit directly on roads that are about to change character significantly.

Source: Johnson County CARNP — jocogov.org/department/public-works/public-works-projects

Source: Overland Park Capital Improvement Program — opkansas.org/city-services/traffic-roads-transportation/traffic-roads/street-construction-projects

Cindy DiCianni, ABR, CRS, CHLMS  |  RE/MAX State Line  |  11251 Nall Avenue, Leawood, KS  |  913-312-3614 (office) or 913-430-8922 email: cindy@cindydteam.com