Know your property’s true flood risk — before it costs you.
Groundswell provides clear, property-specific flood risk analysis that goes beyond standard FEMA flood zone maps — so homebuyers, owners, and investors can make major decisions with confidence.
- Independent & unbiased
- Property-specific analysis
- Certified Floodplain Manager

Ray Deschler, CFM
Founder & Certified Floodplain Manager
Understand what flood risk actually means for this property.
Groundswell Flood Advisory is an independent consulting service helping you understand a property’s true flood risk before a major financial decision. Advisory and analytical — not an engineering firm, insurance company, or contractor.
Property-specific, not zone-generic
We analyze elevation, terrain, and site conditions for your exact parcel — not just the FEMA flood zone the whole block shares.
Independent and objective
We sell no insurance, construction, or mitigation products. The guidance is unbiased, with nothing to upsell.
Clear, plain-English findings
Expert interpretation of flood data, translated into what it actually means for this property — no engineering jargon.
Built for confident decisions
A second opinion outside of insurance or contractor sales, so you can buy, hold, or invest with clarity.
Three levels of insight, tailored to your decision.
Every engagement starts with your property address or parcel number. Choose the depth that fits where you are.
Flood Risk Snapshot
An entry-level assessment designed for early-stage buyers or homeowners seeking quick clarity about a property's flood exposure.
- FEMA flood zone analysis
- Base flood elevation review
- Estimated parcel elevation and surrounding terrain analysis
- Key flood risk indicators
- + 3 more
Comprehensive Flood Risk Assessment
A more detailed property analysis designed for serious buyers, higher-value homes, or clients wanting deeper insight into current and future flood risk.
Everything in the Flood Risk Snapshot, plus:
- Storm surge analysis
- Riverine flooding review
- High tide flooding exposure
- Sea level rise considerations
- + 4 more
Flood Resilience & Mitigation Plan
A premium advisory service focused on long-term flood resilience and smart mitigation investments.
Everything in the Comprehensive Assessment, plus:
- Customized mitigation recommendations
- Property-specific resilience strategies
- Estimated cost ranges
- Prioritized action roadmap
- + 2 more
A straightforward, client-friendly process.
- 01
Submit your property
Send a property address and/or parcel number. That's all we need to begin.
- 02
Select your service
Choose the Snapshot, Comprehensive Assessment, or Resilience & Mitigation Plan.
- 03
Receive a detailed report
A clear, report-style analysis of the property's flood risk, in plain English.
- 04
Review together
An optional consultation to walk through findings and recommendations.

Ray Deschler, CFM — independent, unbiased, and grounded in the data.
Municipal floodplain management experience, a background in hydrology, GIS analysis, and climate resilience — and no insurance, construction, or mitigation products to sell.
- Nationally Certified Floodplain Manager (CFM)
- Municipal floodplain management experience
Serving Florida’s most flood-exposed communities.
Tampa Bay Area
Hillsborough · Pinellas · Manatee · Sarasota · Pasco · Hernando
Southwest Florida
Lee · Collier
East Coast Florida
Brevard · Volusia · Flagler · Duval · St. Lucie · Martin
Start with your property.
Send an address or parcel number and we'll help you choose the right level of review.