Building science support, led by the owners
Oxalis combines field verification, technical documentation, compliance coordination, and sustainability strategy for housing, recovery, and community projects.
Direct technical ownership for public programs
Oxalis brings field verification, technical documentation, compliance coordination, and sustainability planning together for housing recovery and community projects.
Company profile
Oxalis Advisors is an Economically Disadvantaged Woman Owned Small Business. Nadia Saponara and Rebekah Phomsopha remain directly involved in project strategy, field work, documentation, and issue resolution.
Oxalis can support agency work, prime contractor teams, program implementation, and focused technical assignments.
Capability areas
Green building certification
ENERGY STAR, NGBS Green, FGBC, LEED, WaterSense, Indoor airPLUS, DOE Zero Energy Ready Home, inspections, testing, and certification closeout.
Code and permitting
Energy code review, Manual J, S, and D calculations, permit documentation, and technical responses to reviewer comments.
Housing recovery programs
Repeatable verification workflows, coordination across many sites, issue tracking, and field documentation.
Sustainability and funding
Performance strategy, resilience planning, grant research, proposal narratives, and implementation guidance.
Relevant performance
Oxalis has supported housing recovery and green building work in Alabama, Florida, and Louisiana. That work includes programs pursuing ENERGY STAR, NGBS Green, FGBC, WaterSense, Indoor airPLUS, and DOE Zero Energy Ready Home requirements.
Why teams choose Oxalis
- Owners stay involved throughout the work
- Field findings connect directly to documentation and closeout
- Requirements are translated into clear responsibilities and timing
- Program teams receive direct answers when conditions change
Let’s make the next step clear.
Tell us what you’re building, where it is located, and which certification requirements you are working through.