Lilly Street
E8CDC Builds on Small Lots in Hilly Eastern Tennessee
Eastern Eight Community Development Corporation (E8CDC) is expanding housing opportunities in their corner of Northeast Tennessee and has been a valued long-term partner of the Front Porch Initiative (FPI). After finishing a home together in 2022, we’re celebrating another recently completed infill house—a new house on a vacant or underused lot in a existing neighborhood—this time just one mile from downtown Bristol, TN!
Meeting the Challenge
In April of 2023, E8CDC acquired a small, steeply sloped parcel in Bristol, TN, a lot condition that is common in this corner of Tennessee. E8CDC received U.S. Housing and Urban Development (HUD) funds through the Northeast Tennessee/Virginia HOME Consortium to conduct the environmental review, demolish the existing neglected house, and site survey.
The lot is considered nonconforming because it doesn’t meet minimum lot area required by Bristol Zoning Code. In addition, the site’s layout requires a zoning variance to meet the required side setbacks. However, even with the variance, the buildable area of the site was only 35 feet by 42 feet.

The small buildable footprint and significant slope in grade were major factors in planning the house. The Front Porch Initiative modified Auburn University Rural Studio (AURS) Patriece’s prototype from a two-story house into a one-story, two bedroom, one bathroom home. This variation has a zero-step accessible entry into the main floor at street level and a walk-out basement below. The basement helps manage the steep slope, while providing space for the water heater and mechanical systems, keeping them inside the thermal envelope of the building and thereby lengthening the equipment’s lifespans.


Strategic Building
Once the original home was demolished and the disturbed soil removed, E8CDC and FPI rotated the home so that the long side would be parallel to the road. That orientation allows the basement foundation walls to be designed to act as retaining walls for a parking pad on the high side of the site. A key takeaway from this project was how to use existing site features to our advantage, retaining earth and enhancing site access.


In October 2025, E8CDC hired a general contractor to work alongside their new construction manager to oversee the project on-site. They opted for a poured-in-place concrete wall instead of a CMU block wall, allowing them to quickly complete a stronger and water-tight foundation, which was ready by mid-October. By the end of the month, the team had finished the floor system, framed the walls, erected roof trusses, and applied exterior sheathing, significantly speeding up the construction schedule to meet their grant deadlines.
Home Performance
Throughout construction, a Home Energy Rating System (HERS) rater assessed this home. E8CDC was familiar with the HERS rater, who evaluated the East Unaka home completed in 2021. The assessment included a mid-construction blower door test, which examines how airtight the home is, calculating the home’s air infiltration rate in air changes per hour (ACH). The lower the ACH, the tighter the thermal envelope and the better the home’s energy efficiency. The goal is always to mitigate air infiltration, and a mid-construction check allows for improvement. We were pleased that the final blower door test results were low 2.1 ACH (air changes per hour), a low score for a home (code requires 5 ACH)! Finally, the rater evaluated the finished house, rating it with a HERS Index. Because this home was built with such a tight envelope, the homeowner minimizes air leakage which reduces stress on the air conditioning systems, saving money and staying comfortable.



Balancing Affordability Opportunities
The HUD grant that funded this home has caps on buyer income and rental reimbursement. For a two-bedroom home, the maximum homebuyer income is limited to 80% AMI (area median income), and the maximum rental reimbursement is $1,100/month. These requirements influenced E8CDC’s decision to keep the home as rental housing, to better recover the cost of its construction.
Rural Studio is proud the home is finally complete! Even though there were challenges, we are honored to collaborate with housing partners that are persistent and dedicated to providing housing affordability in their community!

Watauga Street
Gentle Density
While Lilly St began development, E8CDC also reached out to Rural studio about another site about 40 minutes away in Johnson City, TN. Based on the city official’s desire to increase residential density, Eastern 8 was originally considering building a quadplex on a site. But eventually, they decided that subdividing would be more appropriate for the neighborhood: they divided the lot in half and developed two separate duplexes.


An Adaptable Prototype That Meets Local Needs
Auburn University Rural Studio had previously designed a duplex that was built for the New Orleans area Habitat for Humanity to hold as workforce housing. Because E8CDC wanted to use a duplex for rental property, AURS was able to advance this previous design into a prototype that can be flexible to multiple housing needs: AURS created interchangeable options of bathroom and storage spaces. The adaptability of the duplex prototype allowed E8CDC to market the project to a specific housing need. E8CDC selected the option with one bathroom and a laundry room then requested that the units be fully accessible, as they intend the units to be rentals for veterans and want to support residents throughout different stages of life.
The two duplexes, instead of one quadplex, fit into the urban fabric of the single-family home neighborhood, and creates new opportunities for shared outdoor space and resources. The design encourages neighborly interaction: residents share off-street parking at the front of the site, share access to the duplexes through an interior courtyard with interior-facing porches.

Energy Efficient Improvements
Recognizing that the units will be made available to residents who may be on fixed incomes, E8CDC agreed to pursue ENERGY STAR certification to reduce energy costs, thereby ensuring long-term affordability to residents. Energy modeling estimates that, because of efficient design, the home will consume 46% less energy than a typical US home. The energy improvements include improved air sealing, balanced ventilation, high-performance heating and cooling systems, and beyond-code insulation levels.




Construction of the duplexes began in October of 2025, and they were completed in July of 2026, with renters already approved to move into three of the four units. The project follows HUD income-based affordability guidelines, serving residents earning 80% AMI or below for rental monthly rates.
E8CDC hosted a ribbon cutting ceremony in July. The Federation of Appalachian Housing Enterprises (FAHE) provided some of the grant funding for this project, were in attendance to celebrate the project opening. The Front Porch Initiative, members of the E8CDC board, and local community members all gathered to celebrate this successful effort to provide east Tennessee with housing that is affordable to those who live there!


























































