San Dieguito Engineering (SDE) joined forces with renowned architect Rob Quigley on an exciting mixed-use residential project located on a compact 0.23-acre lot in the heart of Solana Beach at 652 Stevens Avenue.

While the small site and adjacent public storm channel posed a significant engineering challenge, SDE rose to the occasion with creativity and technical expertise. The team designed a custom stormwater management solution that included a bioretention vault featuring multiple small pipe outlets with riprap to mimic surface sheet flows into the concrete channel offsite. This design allowed stormwater to drain naturally to the surface before exiting the site.

What could have been just a technical necessity turned into a standout feature: the innovative drainage system not only met strict stormwater standards but also allowed for the creation of a beautiful garden space at the rear of the property.

Another standout feature of this project is the underground parking structure. In order to meet the parking requirements, Rob Quigley’s office provided an innovative design with parking beneath the building. The SDE civil engineering team collaborated closely with the architect to ensure precise alignment between the parking grades and the finished floor elevation, enabling a smooth and efficient construction process.

This project stands as a testament to how innovative engineering and thoughtful design can transform site constraints into opportunities. By blending technical precision with architectural vision, SDE and Rob Quigley not only overcame complex challenges but also elevated the project’s overall aesthetic and functionality. From the seamless integration of underground parking to the sustainable stormwater garden, 652 Stevens Avenue is a model for smart, sustainable urban development.