In September 2026, single-family homes in Upper Mount Pleasant sold for 94.3% of their original list price, according to the Charleston Trident Association of Realtors September Local Market Update. A home that closed at the area's $995,000 September median at that ratio would have first been listed at about $1,055,000. The difference is roughly $60,000, and the reported figure understates it, since CTAR's footnote says the ratio "does not account for sale concessions."
That discount is happening while supply is getting tighter. Upper Mount Pleasant, CTAR's Area 41, which covers Carolina Park, had 151 single-family homes for sale in September 2026, down 18.8% from 186 a year earlier. In June, Carolina Park's developer announced that the last new custom home in Riverside was under contract and that "there will never again be an opportunity to purchase a brand new home" in the community. Fewer listings and no new construction should help sellers. In north Mount Pleasant this fall, sellers are actually holding less leverage than they did a year ago.
From June to September, the slide in two columns
One weak month could be noise. From June to September, days on market and the list-price ratio moved the same way, even though the month-to-month path was uneven. Here are CTAR's single-family detached numbers for Area 41 across summer and early fall 2026:
| Month, 2026 | Median sales price | Days on market | % of original list received | Inventory | New listings |
|---|---|---|---|---|---|
| June | $1,000,000 | 30 | 96.4% | 165 | 96 |
| July | $1,055,000 | 35 | 95.7% | 175 | 96 |
| August | $935,000 | 53 | 95.9% | 149 | 60 |
| September | $995,000 | 55 | 94.3% | 151 | 73 |
The median and inventory both bounced around, and the ratio ticked up slightly in August, because a few dozen closings a month can move any of these numbers. Comparing June with September gives a clearer picture. The typical sale took 30 days in June and 55 in September. Over the same months, the share of the original asking price that sellers kept fell from 96.4% to 94.3%. In September 2025, the comparable figures were 49 days and 95.6%.
Year-to-date numbers show the same thing. From January through September 2026, the Area 41 single-family median was $980,000, down 5.8% from $1,040,000 in the same period of 2025. Sellers kept 96.2% of their original list price, down from 97.4%.
Supply fell, and so did the willingness to pay full price
Buyers haven't stopped buying. Area 41 recorded 63 single-family closings in September 2026, up from 59 a year earlier. Through September, closings totaled 637 in both 2025 and 2026. The number of transactions is holding steady. What has changed is the price at which those buyers agree to a deal and how long a listing waits for them.
Both sides of the market are getting smaller. New listings fell 18.0% year over year to 73 in September and are down 5.4% for the year. If inventory is shrinking while discounts are getting deeper, the number of buyers willing to pay the asking price must be shrinking faster than the number of homes for sale. A smaller supply only helps sellers when demand holds up, and right now demand isn't holding up.
The most obvious cause is mortgage rates. Freddie Mac's Primary Mortgage Market Survey put the 30-year fixed rate at 7.40% for the week of October 8, 2026, up from 7.03% on September 24. A year earlier, in the week of October 9, 2025, the same survey reported 6.30%. CTAR's September Housing Supply Overview notes that rates moved above 7% in late September after averaging 6.67% in August.
Higher rates affect both sides of the deal. An owner with a lower-rate mortgage has less reason to list, which helps explain the drop in new listings. A buyer financing a home near $1 million at 7.40% is working with a higher monthly payment than a year ago, which helps explain why fewer buyers pay the full asking price. The data doesn't establish this connection on its own, and CTAR presents the rate move as market context. Still, it is the explanation that fits a market where both listings and sale-to-list ratios are falling.
The Post and Courier gives a related explanation from the selling side. It reports that homes are taking longer to sell because overpriced listings sit while buyers have more leverage, and it quotes local agents saying sellers need to price realistically and be flexible about concessions. Concessions are the part that CTAR's ratio leaves out.
North Mount Pleasant is softening faster than the region
The Charleston-area market as a whole looks much steadier. CTAR's September 2026 Monthly Indicators for all property types across the region show:
- Inventory of 5,590 homes, up 0.1% from a year earlier
- 95.6% of original list price received, up 0.1%
- A median price of $425,000, up 0.7%
- 3.6 months of supply
Regional single-family homes had 3.5 months of supply over the 12 months ending September 2026. Regional inventory is flat. Upper Mount Pleasant's inventory dropped by nearly a fifth, and its sellers are keeping less of the asking price than sellers elsewhere in the region.
Neighboring areas are moving in different directions. In Lower Mount Pleasant, Area 42, September 2026 single-family inventory fell 22.2% to 133 and new listings dropped 16.7%. Days on market there rose 34.4% to 43, and sellers kept 94.8% of the original list price. That is the same pattern as north Mount Pleasant, with shrinking supply and more negotiating room for buyers. Daniel Island, Area 77, went the other way. Its September inventory rose 57.1% to 44 homes and new listings rose 142.9% to 34, while days on market held at 38 and the list-price ratio was also 94.8%. Daniel Island is adding listings, while Mount Pleasant on both sides of town is losing them, and none of these areas is seeing a seller's market.
Area 41's attached homes behave differently from its detached homes. Townhouses and condos had a $560,000 median in September 2026, and inventory rose 25.5% to 59. Even so, sellers kept 97.9% of the original list price, and days on market fell to 36. North Mount Pleasant's softness is concentrated in detached homes, which is the main product in Carolina Park.
Why the timing matters in Carolina Park
Most growing suburbs keep adding new houses. When resale prices soften, a builder down the road can absorb some of the demand, and when resale prices rise, a builder can add supply. That safety valve is now closed in Carolina Park. The developer's June 11, 2026 update said construction was continuing on the final few homes in The Preserve, the last section of Riverside, and that no more brand-new homes would be offered. In a 2024 announcement, the developer said The Preserve would have 13 custom homesites, each built by Cline Homes.
From now on, the residential supply in Carolina Park is fixed. Any home a buyer purchases there will be bought from another owner. Over the long run, that kind of scarcity tends to support prices in a finished community, because new demand has nowhere to go but resale. In the short run, Area 41's numbers show something else. As of September 2026, homes are taking longer to sell and sellers are keeping less of their asking price. Long-term scarcity and short-term buyer leverage are both present this fall.
The commercial side of the community is still growing. Cape Landing is a 25-acre development at Carolina Park Boulevard and Park Avenue Boulevard, planned for retail, restaurant, medical and office space, and the developer's June update said it was under construction. A July 2026 announcement reported by Who's on the Move said spaces would start at 600 square feet for retail, wellness, office and service businesses. No tenants or opening date had been named. A buyer this fall is buying into a neighborhood with no more new homes coming and a commercial center that isn't finished yet.
Reading a Carolina Park listing against these numbers
The Area 41 figures describe a larger area than Carolina Park, and CTAR does not publish subdivision-level reports. A few points from the reports help put any single listing in context:
- Days on market compared with the area. The typical Area 41 single-family sale took 55 days in September 2026, compared with 30 in June. A listing that has been on the market longer than about eight weeks is past the area's typical pace.
- Original list price, not current list price. CTAR measures the ratio against the first asking price, so price reductions are already included. A home that has been reduced once or twice may still be priced above where similar homes are closing.
- Concessions. The 94.3% figure leaves out seller-paid concessions. The Post and Courier's reporting on concession flexibility suggests the actual discount in some deals is larger than the published ratio.
- Detached and attached homes are separate markets. Detached homes lost ground this fall while attached homes in the same area held at 97.9% of list. An attached-home comp says little about how a detached listing will negotiate.
FAQ
Does the CTAR data cover only Carolina Park?
No. The figures cover Upper Mount Pleasant, CTAR Area 41, which includes Carolina Park and other north Mount Pleasant neighborhoods. CTAR does not publish subdivision-level monthly reports.
Are any new homes still available in Carolina Park?
According to the developer's June 11, 2026 announcement, the last new custom home in Riverside went under contract, and the remaining homes in The Preserve were under construction. The developer said there would be no further opportunities to buy a brand-new home in the community.
Is the regional market softening the same way?
Not as much. Regional inventory was up 0.1% in September 2026, and the regional ratio of original list price received was 95.6%, nearly unchanged from a year earlier. Upper and Lower Mount Pleasant both show falling inventory with longer market times or wider discounts.
What is Cape Landing?
It is a 25-acre commercial development under construction at Carolina Park Boulevard and Park Avenue Boulevard, planned for retail, restaurant, medical and office uses. As of the July 2026 announcement, no tenants or opening date had been published.
If you're weighing a Carolina Park resale this fall, it helps to know how a particular listing's original price, time on market and likely concessions compare with what Area 41 homes are actually closing at. PRL Consulting Group can run that comparison for a specific address before you make an offer. Request a Market Valuation or Project Consultation.
