// Flood Risk Intelligence — National Coverage

Know the flood
risk before
it costs you.

Built by an analyst. Designed for everyone who needs flood risk data they can trust.

FEMA maps are often 15–20 years out of date. Tidemark delivers flood risk intelligence two ways: instant self-serve screenings through TidemarkOS™, and expert analyst reports produced using ArcGIS Pro and primary federal data. Nine federal data sources. Full methodology. One clear picture.

Try TidemarkOS™ Free View Report Options
Low Risk
Moderate Risk
High Risk
Critical Risk
20yr
Average age of FEMA flood maps
9
Federal data sources per screening
<10s
TidemarkOS™ screening time
50
States covered nationwide

// The problem with standard flood maps

FEMA maps tell you where the water was.

We tell you where it's going — and what's changed upstream since the last update.

Maps Are Outdated
The average FEMA FIRM map is 15–20 years old. Upstream development, climate shifts, and aging infrastructure have fundamentally changed flood patterns in most markets.
Upstream Development Changes Everything
Every new parking lot and subdivision upstream increases runoff velocity. A property rated Zone X in 2005 may carry significantly higher flood risk today.
Impaired Waterways Increase Risk
Streams listed on state 303(d) impairment lists face degraded flow capacity — but this data never appears on a standard FIRM map.
Disclosure Liability Is Real
Flood disclosure litigation is rising. A Tidemark report provides documented due diligence that protects agents, attorneys, and buyers from post-sale disputes.
// Standard FEMA Map vs. Tidemark Report
Data Point FEMA Only Tidemark
Flood Zone Classification ✓ ✓
100/500-Year Floodplain ✓ ✓
Upstream Development Analysis ✗ ✓
Impaired Waterway Data ✗ ✓
Historical Flood Events ✗ ✓
Stormwater Infrastructure ✗ ✓
Wastewater Discharge Points ✗ ✓
Interactive GIS Map ✗ ✓
Plain Language Risk Rating ✗ ✓
Legal/Expert Grade Option ✗ ✓

// Report tiers & pricing

The right report for
every transaction.

Every report is produced by a credentialed team — not an algorithm.

Most Popular
Tier 01
Standard Risk Report
For agents, lenders & engineers
$750–$950
Per report · 5–7 business days
  • FEMA flood zone classification with FIRM overlay
  • Upstream development analysis
  • Impaired waterway proximity
  • Historical flood event overlay
  • Stormwater proximity and 303(d) waterway analysis
  • Interactive ArcGIS Online map
  • 5–8 page professional PDF
Order Now
Tier 02
Premium Expert Report
For attorneys & engineers requiring litigation grade
$1,800+
Per report · 10–14 business days
  • Everything in Standard Report
  • Full professional narrative for legal use
  • Contaminant & environmental risk
  • Elevation certificate context and flood event history
  • LOMA eligibility analysis
  • Regulatory citations & methodology
  • Professionally documented methodology
Request a Quote
Tier 03
Jurisdictional Analysis
For government agencies & municipalities
$5K+
Custom scoped · Multi-property
  • County or multi-property analysis
  • Census block group exposure mapping
  • Documented watershed and upstream conditions
  • FEMA hazard mitigation alignment
  • Interactive ArcGIS dashboard
  • FEMA grant-ready documentation
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// Annual Retainer
Built for real estate professionals

High-volume agents and brokerages get priority turnaround, branded reports, and significant per-report savings on an annual contract. One good flood disclosure protects you and your client for the life of the transaction.

Essential
$1,999/yr
Up to 10 Standard Reports included
  • $249 per additional report
  • Priority turnaround
  • Branded report header
  • 1 free Premium Report/year
Professional
$5,999/yr
20 Standard Reports included
  • $229 per additional report
  • 24-hour priority turnaround
  • Branded report header
  • Monthly flood risk market update
  • 1 free Premium Report/year

// What you receive

See a real Tidemark report.

Every report is produced by a credentialed team — not generated by software. Below is a sample from our Standard Report tier, shown on a demonstration property.

Tidemark Standard Report Sample
Request Your Report → Ask a Question

Sample report shown on a demonstration property. Address redacted. All data reflects publicly available federal and state records.

// Beyond the report

Full-spectrum flood risk
consulting services.

Tidemark offers a complete range of consulting services for clients who need more than a single report — from FEMA grant navigation to professional consulting to floodplain management advisory.

Hazard Mitigation Planning

FEMA-aligned hazard mitigation plan development and updates for local governments under 44 CFR Part 201. Unlock BRIC, HMGP, and FMA grant eligibility. Led by a credentialed emergency management specialist with direct GEMA coordination experience.

Government · Municipal
FEMA Grant Application Support

End-to-end support for BRIC, HMGP, and FMA grant applications — from benefit-cost analysis to technical narrative to submission. Most small municipalities lack the internal capacity to navigate federal grant requirements. We fill that gap.

Government · County
Consulting for Legal Proceedings

Retained consulting services for flood disclosure litigation, property damage claims, and due diligence proceedings. We assist attorneys in understanding spatial data, methodology, and flood risk findings — behind the scenes or through written declarations.

Attorneys · Law Firms
Quantitative Risk Assessment

Scenario-based flood risk research drawing on upstream development data, historical event records, and multi-source public data analysis. Produced by a credentialed team with emergency management and GIS backgrounds.

Engineers · Developers
Floodplain Management Consulting

Research and documentation support for property owners, developers, and municipalities navigating NFIP compliance, floodplain regulations, and flood risk questions. Credentialed data analysis without large-firm overhead.

All Segments
Stormwater Compliance Consulting

MS4 permit guidance, stormwater management obligations, and Georgia EPD compliance advisory for developers and property owners. Understand your regulatory exposure before you build — or before you close.

Developers · Engineers
Professional Training & Workshops

CE-eligible lunch-and-learn sessions for real estate brokerages on flood disclosure obligations and how to read risk reports. CLE-eligible workshops for law firms on flood litigation trends and expert evidence. $500–$2,000 per session.

Agents · Attorneys
Environmental Due Diligence

Flood and waterway risk component for commercial real estate transactions — standalone or as a complement to a Phase I ESA. Covers FEMA zone analysis, impaired waterway proximity, wastewater discharge risk, and historical flood documentation.

Commercial RE · Lenders
Custom GIS Analysis & Mapping

Bespoke spatial analysis and mapping products for clients with specific research, planning, or litigation needs. ArcGIS Pro Professional certified. We build the map your project actually requires — not a template.

All Segments · Custom
Discuss Your Project →

// Who we work with

Trusted by the professionals
who can't afford to be wrong.

Every client type gets a report built for their specific use case — not a one-size-fits-all PDF.

Real Estate Agents

Protect your clients and your license with documented flood due diligence on every transaction near water. Our branded reports become part of your professional service offering.

TidemarkOS · Standard
Attorneys

Expert-grade spatial analysis and written narrative suitable for flood disclosure litigation, property damage claims, and due diligence proceedings. Prepared by a credentialed team.

Premium Expert Report
Engineers

Full methodology documentation, data source citations, and technical depth suitable for professional and legal review. Integrates with your existing due diligence workflow.

Standard · Premium
Government Agencies

Multi-property and jurisdictional flood risk analysis aligned with FEMA hazard mitigation planning standards. GEMA-coordinated methodology. FEMA grant-ready documentation.

Jurisdictional Analysis

// About Tidemark Risk Firm

GIS-driven flood intelligence. Built in the field.

Tidemark Risk Firm delivers flood risk intelligence grounded in public federal data, interpreted by a credentialed team, and built to hold up under scrutiny. Our work spans self-serve property screenings through TidemarkOS™, expert analyst reports for attorneys, insurers, and lenders, and full-scope consulting for municipalities navigating FEMA compliance, hazard mitigation, and floodplain management.

Founded on years of applied GIS work at the intersection of environmental risk, public health, and emergency management, Tidemark brings the same analytical rigor used in government-grade spatial analysis to every client engagement — from a single-property screening to a countywide exposure assessment.

// Leadership
Taylor Brashears
Founder & CEO

Taylor brings years of hands-on geospatial analysis and GIS production experience spanning flood risk, environmental exposure modeling, and emergency management. Her geospatial work includes building multi-source spatial analysis frameworks using ArcGIS Pro, producing flood exposure and watershed analyses for municipal emergency management teams, and delivering environmental justice research using OLS regression and Getis-Ord Gi* hot-spot analysis across Census block groups. Taylor has coordinated directly with state agencies and municipalities on active hazard mitigation planning and FEMA grant-aligned technical documentation.

Credentials
▸
MA Emergency Management & Homeland Security
Arizona State University
▸
ArcGIS Pro Professional
Esri Certified
▸
CAPM® Certified
Project Management Institute
▸
NIMS / ICS Certified
FEMA
Taylor Baldwin
Co-Founder & COO

Bio coming soon.

// Get in touch

Let's talk about your project.

Not ready to order yet? Have a question about scope, pricing, or fit? Send us a message and we'll get back to you within one business day.

Or reach us directly at [email protected]

// Order a report

Ready to know the real risk?

Tell us about the property and what you need. We'll confirm the scope and turnaround within one business day.

Or email us directly at [email protected] · We respond within one business day.