How will the Chinatown Stitch Project change the neighborhood?
The history of Philadelphia's Chinatown is deeply tied to the construction of I-676, whose lasting impacts—including displacement, pollution, traffic issues, and more recent challenges like gentrification and inefficient land use—continue to affect the neighborhood today.

Three Scenarios

This data-driven story map will provide information about the estimated sales prices of the properties in Chinatown and Callowhill regions generated by the predictive model we developed to evaluate the effectiveness of the Chinatown Stitch as well as to identify potential changes it will have in the neighborhood.

The housing market of our study area will be revealed under these different alternative scenarios listed below:

Scenario 0:

Where We Start: The I-676 Highway as a Barrier

🛣 Highway remains a physical and economic barrier, dividing Chinatown and limiting connectivity.

📉 Property values show spatial imbalance — sale prices increase significantly with distance from I-676 on the south side, but decline with distance on the north side.

🧭 Reinforce unequal development patterns, with opportunity concentrated in the south and disinvestment in the north.

🚫 No intervention means no shift in trajectory — existing fragmentation and disparity persist as the baseline.

Scenario 1:

A First Step: Build Cap Park to Reconnect Chinatown Community

🏞 one serves as a Cap Park , while two others reconnect streets and improve circulation across the highway.

🚶 Restore physical connections between north and south Chinatown, enhancing walkability and spatial continuity.

📉 Help stabilize fragmented property values, narrowing the north–south gap, though overall price growth remains limited without land use changes.

🪧 Signal future reinvestment potential, but remains a modest intervention in the absence of structural development policies.

Scenario 2:

Turn Connection into Growth: Cap Park + Alternate Zoning / Land Use

🧩 Building upon Scenario 1, Scenario 2 combines highway cap park with strategic zoning and land use changes across both sides of I-676.

🏪 Under the commercial perspective, reclassify part of vacant and industrial parcels as commercial or commercial–mixed-use properties, supporting walkable retail and local services.

🏘️ Under the residential perspective, reclassify part of Single-Family residential and vacant lots as Multi-Family, expanding affordable housing options and increasing population capacity.

📊 Unlock more development value and lead to significant property price increases, especially where zoning changes align with better access and street connectivity.

⚠️ However, while the south shows notable value increases, the north continues to lag, reflecting persistent structural challenges that require further public investment in amenities and infrastructure.

Scenario.0 VS Scenario.1

What is the influence of the cap park?

Scenario 0 reflects the current conditions with no cap over I-676.

Scenario 1 adds a cap park to improve north-south connectivity and public space quality. The overall price change is limited, only slightly easing the north-south disparity.

Scenario.1 VS Scenario.2

What is the influence of the ensuing land use change?

Scenario 1 includes only the cap park.

Scenario 2 builds on it with further land use and zoning adjustments:

• Commercial perspective: Reclassify some vacant land & industrial properties as commercial or commercial mixed-use properties.

• Residential perspective: Reclassify some vacant land & single-family properties as multi-family residential properties.

Scenario 2 results in a more notable price increase than scenario 1, but spatial imbalance remains a challenge.

Scenario.0 VS Scenario.2

What is the influence of the cap park and the ensuing land use change?

Scenario 0 serves as the baseline.

Scenario 2 combines a cap park with land use /zoning reclassification to drive both spatial connectivity and value restructuring. It generates a notable rise in property values, but it further widens the gap between the north and south sides.

SUMMARY

Median Values

Price Distribution

median_S0: $402561; median_S1: $438338; median_S2: $487683

Each phase of intervention contributes incrementally to property value change. Physical improvements alone offer moderate benefits, while combining them with land use changes produces broader market responses.


What We Found


South side areas, especially the parcels located near the proposed park cap and close to the highway, showed the most significant property value increases in our analysis. These increases appeared in both the scenario with physical improvements only and the one with both physical and zoning changes. The price increases in these parcels reflect strong market demand and suggest that the area is already prepared to support more intensive land use. However, this also raises concerns about rising market pressure on existing residents and businesses.


In contrast, parcels on the north side of the highway continued to show declining values even when zoning changes were applied. Our findings indicate that zoning policy alone does not generate value increases in areas with weak infrastructure or limited access. Some parcels farther from the highway began to increase in value, which highlights the importance of considering physical conditions like street connectivity and transit access. Without additional investment, zoning changes alone are unlikely to create equitable development on the north side.


Our analysis also showed that not all value increases are beneficial. If new growth focuses only on high-end commercial or residential development, it may bring investment but also increase the risk of displacement. For growth to truly serve Chinatown, it will be designed to protect the community and ensure existing residents benefit from new improvements.


What Will Be Done to Protect the Chinatown Community?


Our project is not only about identifying where prices may rise. It is also about informing how public agencies can support development that prevents displacement and protects long-time residents. Property value increases, if not managed carefully, can lead to the loss of affordable housing. But when tracked and addressed early, these increases can serve as warning signs and guide protective policies.


We recommend that city agencies monitor price changes in areas where values increase rapidly. These parcels should be prioritized for early interventions such as rent stabilization, affordable housing protections, or tax support for long-time owners. With early action, rising prices do not have to mean rising displacement.


We also encourage the city to focus new development in areas that are already prepared for growth, such as the south side parcels near the park cap. These areas show high potential and can absorb new development without displacing current residents, especially if paired with infrastructure support and thoughtful design.


Meanwhile, areas where values remain low, especially on the north side of the highway, should not be overlooked. These parcels require more than just new zoning. They need investment in transit access, walkability, and public services to become viable for future growth. Only by addressing these needs can development happen in a way that is fair and sustainable.


Building a Fair Future for Chinatown


This project has always been about more than just changes in land use or urban design. It is about making sure that any improvements benefit the people who already live and work in Chinatown. Through all the analysis, one message is clear: smart planning and early action can reduce harm and increase opportunity. If future development is guided by what we have learned, the Chinatown Stitch can reconnect more than streets. It can reconnect people, protect communities, and support a neighborhood that grows without leaving anyone behind.


LIMITATIONS

Note that the purpose of this study is to try to discover the potential trends/shifts in the housing market instead of accurately predicting exact value of each property within the study region due to the limitations of the modeling methods as well as other factors beyond our control. These scenarios are alternatives to reality and not the future market as the future is highly unpredictable.