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FixList provides real estate data tools and services to help anyone discover real estate opportunities and use data to inform their investment decisions. Founded in 2015, we’ve made it our mission to help facilitate the reduction of blight by empowering individuals, businesses, and neighborhood associations with information they need to effectively allocate their resources. Combining a passion for the built environment and the power of data analysis, FixList serves to be a catalyst for informed and actionable decision-making.

Stacey Mosley, Founder & CEO

Philadelphia enthusiast, data nut and engineer.

Prior to launching FixList in 2015, Stacey worked for the City of Philadelphia for five years practicing data science and operations engineering for the City’s Vacant Property Strategy and Open Data initiative. She is a graduate of Northwestern University, having studied Manufacturing & Design Engineering with a mix of courses from the Savannah College of Art and Design to balance both her creative and more disciplined interests.

She is the outgoing Programming Chair of Young Involved Philadelphia and an active member of the Urban Land Institute, sitting on the Policy & Land Use Council, Young Leadership Council, and NEXT cohort. Outside of civic life, Stacey is a hiker and cyclist who loves convening the wonderful people she's come to know. She is honored to be recognized as one of Billy Penn’s Who’s Next in Entrepreneurship, and by the Philadelphia Business Journal as an emerging Woman in Technology.

Mjumbe Poe, Co-founder & CTO

Urban technologist.

Mjumbe has been developing civic technology since 2010. He endeavors to use technology to build the capacity of individuals and communities to shape their cities, their neighborhoods, and their own lives.

Prior to joining FixList in 2016, Mjumbe served as a Digital Services Architect at the City of Philadelphia’s Office of Open Data and Digital Transformation. In 2012, he started at OpenPlans, where he worked on projects that encouraged city residents to get involved in planning for the future of their cities. In 2011, he was an inaugural Code for America Fellow.

The perspective of technology as a means for social empowerment guides Mjumbe's professional and extracurricular development. He volunteers with Coded by Kids as an instructor and a board member, and is a member of the planning committee for the International Conference on Appropriate Technology.

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Redevelopment Score

FixList's marquee offering is our proprietary Redevelopment Score calculated using a predictive model, looking at the conditions of a property and its surroundings in order to approximate the redevelopment potential of any given address, helping you hone in on potential where it exists or is emerging.

The Redevelopment Score is available both through the search portal and via API for enterprise customers interested in using the score on their own website or systems.

Data Sources

FixList currently sources all of its information from City of Philadelphia open data. This incudes information from:

  • Philadelphia Department of Licenses & Inspections
  • Philadelphia Water Department
  • Philadelphia Planning Commission
  • Philadelphia Historical Commission
  • Philadelphia Office of Property Assessment
  • Philadelphia Department of Records
  • Philadelphia Redevelopment Authority
  • and more

This information is gathered and analyzed to provide the most accurate state of properties and their surrounding neighborhoods publicly available.

Scoring for property condition, owner accessibility, and redevelopment potential are just a few of the algorithmically driven metrics that have been created to help users compare properties more readily.

Find something that looks inaccurate? We want to fix it! Email us the details at


Navigating the realm of real estate can be challenging, but full of opportunity. The following are a few resources to help inform your pursuits.


The zoning of a property determines legal use and physical restrictions for construction. One can apply for a variance or permission for things outside of what is legally prescribed through either the Zoning Board of Adjudication (for use) or the Board of Building Standards (for the physical structure).

Check out the City of Philadelphia's Quick Reference Zoning Guide for more information.


In 2008, a law was passed called Act 135, regarding Blighted and Abandoned Property Conservatorship, creating a new tool to help facilitate the reduction of blight throughout the state of Pennsylvania. As described in this guide from the Housing Alliance of Pennsylvania,

"The Blighted and Abandoned Property Conservatorship Act, enacted in 2008, creates a new opportunity for citizens and organizations, as well as local governments, to take constructive action in order to deal with serious cases of property neglect. Under the act, a neighbor, nonprofit organization, municipality, school district, or redevelopment authority can ask a judge to appoint a responsible party to take charge of a neglected property and bring it into compliance with code standards. The party appointed for this purpose, known as a conservator, is given the responsibility to stabilize, rehabilitate or demolish the structure in order to address seriously blighting conditions that the owner has been unwilling or unable to deal with."

Procedural guidance from the Philadelphia Court of Common Pleas can be found here.

Sheriff Sale

There are two types of sheriff sales in Philadelphia - tax foreclosure and mortgage foreclosure - with regular monthly auctions for both where properties that are delinquent either on their real estate taxes or mortgage payments are auctioned off for sale to the public.

To learn more about this process and how you can purchase property at auction, check out the Sheriff's Office online guide or in-person seminars.

The Philadelphia Department of Revenue also allows for individuals to request a property be taken to sheriff sale if it meets specific elligibility requirements. Learn more here.

Government Owned Properties

More information regarding the pursuit of government owned properties can be found on the City's website here.

Historic Tax Credits

Tax credits are also available for organizations and properties that meet elligibility requirements.

Business Loans & Incentives

The City of Philadelphia offers a variety of different incentive programs to help businesses improve their physical locations. Check them out at here.

Stormwater Grants

The City also offers grants for the installation of stormwater best management practices. More information can be found here.

Citizens Planning Institute

Want to learn more about urban planning and related government processes and regulations? Check out the Citizens Planning Institute from the City of Philadelphia Planning Commission.