GeoSTORM

unknown Design the Building

Stormwater modeling software with EPA SWMM graphical interface. FEMA-approved for National Flood Insurance Program studies. Supports urban and rural stormwater design with automated watershed delineation, detention pond design, and green infrastructure readiness.

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Hidden Pricing

2.4 /5 composite score

Value for the price 1/5 reflects no public pricing (red flag: pricing wall); Agent Friendliness 2/5 reflects AutoCAD/MicroStation plugin model without standalone API; Ease of adoption 3/5 reflects specialized stormwater domain, moderate adoption curve; Portability & lock-in 3/5 reflects SWMM/watershed data interchange; Interoperability 3/5 reflects ArcGIS, Google Maps, AutoCAD/MicroStation integrations. Market leader in stormwater: G2 4.7/5 (500+ verified reviews). FEMA-approved engine.

Situational

Rubric Scorecard

How we grade →

Criterion	Score	Evidence
Value for the price	1/5	unknown Source →
Agent Friendliness	2/5	--
Ease of adoption	3/5	--
Portability & lock-in	3/5	1 file formats
Interoperability	3/5	4 integrations

Pricing

Modelunknown

Free tierno

Free viewerno

Trialyes

Published by buildingtech.pro. How we verified this: we checked GeoSTORM against its live site and an independent source — civilgeo.com. Nothing on this page is listed from memory. See how we grade. Verified 2026-09-01.

Evidence

File formats

Format	Direction	Support
DWG	Not stated	Not stated

Integrations

AutoCAD MicroStation ArcGIS (Esri) Google Maps

Sources

Pricing Reviews

Also covers

GeoSTORM also appears in these sub-categories:

Hydraulic & Process Simulation

EPA SWMM hydraulic modeling engine with multiple hydrology methods (Rational, SCS, CUHP, SBUH) for watershed and detention analysis.

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