Flower Mound's Seismic Design Category, explained

Under the seismic model IBC and ASCE 7 use for new construction, Flower Mound is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, Flower Mound ranks above 32% of the 4,875 cities in this dataset for seismic hazard - the 32th percentile.

Where Flower Mound sits in Texas

The raw figures: peak ground acceleration 0.053g, short-period spectral response 0.108g, 1-second spectral response 0.055g. Among 384 Texas cities in this dataset, Flower Mound ranks 70 for seismic hazard, the 82th percentile within the state. About 79,990 people live in Flower Mound, Texas.

Retrofit economics for Flower Mound

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Texas. A typical retrofit still runs $5,000-$10,000 nationally, about $7,000 for a common single-family job.

Earthquake insurance for a Flower Mound home

Outside California, earthquake coverage is typically sold as an endorsement added to a standard homeowners policy, not a separate product - worth asking about directly when getting a home-insurance quote for a Flower Mound address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced Flower Mound's numbers. The guide to what a Seismic Design Category actually means covers why a category is never a substitute for an engineer's assessment of one specific house.