By Jennifer Jordan | Charleston Housing News

Mortgage rates have climbed to their highest weekly average of 2026, creating another affordability challenge for Charleston-area buyers during what is traditionally one of the busiest seasons for real estate.

Freddie Mac reported the average 30-year fixed mortgage rose to 6.55% this week, while the 15-year fixed rate increased to 5.93%. Although both remain below where they stood one year ago, the recent upward movement is continuing to cool buyer activity nationwide.

For Charleston’s housing market, the impact is becoming increasingly visible—not necessarily through falling prices across the board, but through changing buyer behavior.

Charleston Buyers Are More Selective Than They Were a Year Ago

Across Charleston County, Berkeley County and Dorchester County, buyers haven’t disappeared—they’ve simply become much more deliberate.

Many buyers today are taking longer to make decisions, negotiating more aggressively and becoming increasingly payment-conscious as mortgage rates remain elevated.

That’s particularly noticeable in price ranges where financing plays the largest role. Buyers purchasing entry-level and move-up homes are calculating monthly payments far more carefully than they were during the historically low-rate environment of just a few years ago.

Luxury buyers, many of whom are paying substantial cash or making large down payments, continue to be less affected by interest rate fluctuations.

National Housing Data Reflects the Slowdown

The latest national housing statistics reinforce what many Charleston real estate professionals have been seeing.

According to recent reports:

• Existing-home sales declined 2.4% month over month.
• Pending home sales fell 5.4% in June.
• Purchase mortgage applications remain 2% lower than one year ago.
• Freddie Mac’s average 30-year fixed mortgage reached 6.55%, the highest weekly average of 2026.

Those numbers suggest many buyers continue postponing purchases while waiting to see whether borrowing costs improve.

Charleston Inventory Continues to Build

Unlike the inventory shortages that defined much of 2021 through 2023, today’s Charleston market offers buyers considerably more choices.

Inventory has increased throughout much of the region, creating a healthier balance between buyers and sellers.

More available homes mean buyers are no longer forced into the multiple-offer situations that dominated the pandemic-era housing market.

Instead, buyers are taking their time, comparing properties more carefully and expecting homes to be priced appropriately for current market conditions.

Higher Rates Don’t Mean Charleston Prices Will Fall Everywhere

One of the biggest misconceptions surrounding mortgage rates is that higher borrowing costs automatically cause home prices to decline.

Charleston has never behaved as a single housing market.

Highly desirable neighborhoods in Mount Pleasant, Daniel Island, downtown Charleston, Isle of Palms and Sullivan’s Island often respond differently than suburban communities farther from the peninsula.

Location, inventory levels, school districts, waterfront access and overall supply continue to have a greater influence on pricing than national headlines alone.

Some neighborhoods remain highly competitive, while others have shifted toward a more balanced market where buyers have additional negotiating leverage.

Why Mortgage Rates Remain Elevated

Economists continue pointing to inflation concerns as one of the primary reasons mortgage rates remain stubbornly high.

Ongoing instability in the Middle East has created uncertainty surrounding global energy markets and supply chains, both of which can contribute to inflationary pressure.

Mortgage lenders factor long-term inflation expectations into pricing, meaning geopolitical events can influence borrowing costs even for homebuyers in South Carolina.

While some economists believe weaker mortgage demand could eventually place downward pressure on rates, most expect borrowing costs to remain within a relatively narrow range until inflation shows more sustained improvement.

What This Means for Charleston Buyers and Sellers

For buyers, today’s market presents both challenges and opportunities.

Higher mortgage rates increase monthly payments, but improved inventory provides more negotiating power and a greater selection of homes.

For sellers, the market continues rewarding realistic pricing and strong property presentation.

Well-prepared homes in desirable locations are still attracting qualified buyers. Properties that enter the market priced above current market value, however, often experience longer marketing times and increased price reductions as buyers become increasingly selective.

The Charleston housing market remains active, but affordability has become one of the most important factors influencing every transaction.

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Frequently Asked Questions

What is the current average 30-year mortgage rate?

Freddie Mac reported the average 30-year fixed mortgage at 6.55%, the highest weekly average of 2026.

Why are mortgage rates increasing?

Inflation concerns, uncertainty in global energy markets and geopolitical tensions continue placing upward pressure on long-term borrowing costs.

Are Charleston buyers leaving the market?

Not entirely. Buyers remain active but are taking longer to make decisions and paying closer attention to monthly affordability.

Is Charleston’s inventory improving?

Yes. Buyers generally have more available homes to choose from than they have had over the past several years.

Are Charleston home prices falling?

Market conditions vary widely by neighborhood. Some communities remain competitive while others have shifted toward a more balanced market.

Are higher mortgage rates affecting luxury buyers?

Luxury buyers are generally less impacted because many use significant cash or make larger down payments.

Should buyers wait for rates to fall?

Future mortgage rates remain uncertain. Buyers should make decisions based on personal finances rather than trying to perfectly time the market.

Why do global events affect Charleston mortgages?

International conflicts can increase inflation expectations through higher energy costs and supply chain disruptions, which influence long-term interest rates.

Are buyers negotiating more today?

Yes. Increased inventory and higher financing costs have given buyers greater negotiating leverage in many Charleston-area markets.

What’s the biggest takeaway for Charleston?

Higher mortgage rates are slowing buyer activity, but the Charleston market remains fundamentally healthy, with neighborhood-level conditions varying significantly across the region.