How Liquefaction and Earthquake Risk Affects Home Prices in Mission Dolores

What is liquefaction?

Liquefaction relates to the status/composition of the soil and ground on which various counties, cities, and neighborhoods reside. Generally, liquefaction is a natural hazard that is triggered by the occurrence of larger earthquakes. The levels of liquefaction range in intensity. In a particular area, liquefaction levels can be very low, low, moderate, high, or very high. As liquefaction levels rise on the scale, the ground/soil becomes increasingly susceptible to falling or sinking in the face of a high-intensity earthquake.

Why does Liquefaction exist?

At the end of the industrial boom, the San Francisco coastline was populated by many bay, marsh, and creek areas that made structural development near-impossible. In the mid-1800s, the United State Federal Government adopted the Arkansas Swamp Lands Act of 1850. The Swamp Lands Act legalized the State of Arkansas and other states reclaiming swamp and overflow lands. This reclamation would include claiming a title of the lands.

How much of Mission Dolores is affected by Liquefaction?

The level of liquefaction in a particular area varies from region to region.

  • 3.8% of single-family homes are in very high liquefaction
  • 3.3% of single-family homes are not affected by liquefaction
  • Over 93% of Mission Dolores’ inventory is condominiums

How does Liquefaction Affect Home Prices in Mission Dolores?

Based on our findings, we have found that there is no difference between price and liquefaction as shown in the price charts below.

  • Most of the sales in low liquefaction are condo units that are in high unit count buildings (100+ units). These buildings tend to have more restrictions and rules, higher HOA dues, smaller sqft footprint, and less privacy. These features lower prices.
  • The condo units sold in high liquefaction are primarily classic Victorian or Edwardian 2–4 unit buildings. These buildings typically have higher ceilings, lower HOA dues, fewer neighbors, less rental restrictions, and more freedom overall. Buyers value these attributes.
When observing condo units by bedroom count, the conclusion remains the same that there is no price difference between pricing and liquefaction.

To Prospective Buyers

The final decision for whether a home is the right one for you will always come down to you. If liquefaction matters a great deal to you as a buyer, then Atlasa will diligently find properties to fit your desire. On the flip side, if you want a home and are not bothered by its presence in a liquefaction zone, Atlasa will aid you in the purchasing process in equal capacity. What matters most is that as a buyer you are thoroughly informed so as to make the best possible decision.

To Prospective Sellers

More than anything, it is important to remember that you have many options and opportunities to sell your home, even if it is in a moderate to very high liquefaction zone.



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