What is Charleston County’s 2026 transportation sales tax referendum?
On November 3, 2026, Charleston County voters decide whether to extend the county’s existing half-cent transportation sales tax for another 25 years, raising an estimated $4.25 billion for roads, public transit, and land preservation. The measure replaces an expiring 2004 tax rather than adding a new one, so the sales tax rate itself wouldn’t change. Two named Mount Pleasant projects — the Johnnie Dodds Boulevard/Houston Northcutt Boulevard intersection and a Long Point Road bridge project at Boone Hall Creek — carry a combined $400 million in the proposed funding list.
By 32 South Properties | October 12, 2026
If you live in or around Mount Pleasant, you’ve probably already heard something about this vote — a flyer, a town hall notice, a neighbor mentioning it. It’s worth five minutes to actually understand what’s being asked, because this is a genuinely different proposal than the one Charleston County voters rejected two years ago, and it touches roads a lot of Lowcountry buyers and sellers drive every day.
What’s Actually on the November Ballot
The county isn’t proposing a new tax. It’s asking voters to extend the half-cent sales tax that’s funded transportation projects here since 2004 and is set to expire. If approved, the tax would continue for up to 25 years and generate roughly $4.25 billion, split three ways:
- About 64% ($2.7 billion) for roadway infrastructure — named road and intersection projects, pavement management, intersection safety work, and bike/pedestrian improvements
- About 20% ($858–860 million) for public transit — CARTA bus operations, fleet replacement, and regional transit including the planned Lowcountry Rapid Transit line
- About 16% ($690 million) for the Greenbelt Program — buying and preserving undeveloped land across the county
You can see the complete project list and an interactive map by area on Charleston County’s own referendum site.
The Two Mount Pleasant Projects With Real Dollar Figures Attached
Two Mount Pleasant projects made the county’s list of major “featured” projects, meaning they’re specifically named and budgeted rather than folded into a general pavement-management line:
- Johnnie Dodds Boulevard at Houston Northcutt Boulevard (U.S. 17) — $230 million. An intersection rebuild at one of Mount Pleasant’s busiest commercial crossings.
- Long Point Road at Boone Hall Creek — $170 million. A bridge and roadway project along Long Point Road.
That second project is worth pausing on, because it’s easy to confuse with a Long Point Road project already underway. This referendum funds a Boone Hall Creek bridge segment, separate from the Long Point Road/I-526 interchange rebuild that broke ground this summer and that we covered in an earlier post — that interchange work has its own funding and construction contract already in place, independent of whether this referendum passes. Two different projects, same road name, which is exactly the kind of detail worth getting straight before you repeat it to a buyer or a neighbor.
Why This Vote Failed in 2024 — and What’s Different This Time
Charleston County voters have seen a version of this ask before. A similar transportation sales tax referendum went to voters in November 2024 and failed by nearly a 2-to-1 margin. The 2024 version centered on the Mark Clark Extension, a proposed highway connector linking I-526 to the James Island Connector that drew heavy opposition over sprawl and marshland impact — and the whole referendum became, in practice, a vote on that one project.
The 2026 proposal makes three changes directly in response to that outcome:
- The Mark Clark Extension is gone. It’s not part of this program.
- The project list was rebuilt from public input — the county gathered nearly 4,300 survey responses before finalizing the list, including Mount Pleasant’s own submitted project priorities.
- The ballot language is firmer. Language was changed from “may include” to wording intended to give voters more certainty that listed projects actually get built as described.
Charleston County Council gave the measure its third and final reading in July 2026, sending it to the November ballot. Public outreach sessions on the proposal continued through October.
What This Means If You’re Buying or Selling Near These Corridors
For most buyers and sellers, the honest answer is: it depends on which piece of this actually touches your address, and that’s not something a countywide project list can tell you on its own.
If you’re buying near Johnnie Dodds Boulevard, Houston Northcutt Boulevard, or Long Point Road. A referendum passing doesn’t mean construction starts next month — funded projects still go through design and permitting first. But it’s one of the questions buyers often forget to ask before they fall for a location: is there a funded project nearby, and what’s the realistic timeline for it to actually change your daily drive?
If you’re selling near one of these corridors. Buyers touring homes in the area may have heard about the referendum and have questions about what it means for the property. Knowing which specific project is closest to a listing — and being able to explain the difference between “on the ballot” and “already under construction” — is the kind of clarity that turns a vague worry into a straightforward conversation.
If you commute through Mount Pleasant from Daniel Island or elsewhere. Daniel Island’s growth over the past two decades has made regional road capacity a bigger factor in how that area functions day to day, and a countywide transportation vote is part of that same picture, even for buyers who aren’t looking at a home directly on one of the named corridors.
None of this is a reason to rule an address in or out based on a ballot measure alone. A project that’s three-tenths of a mile from a home affects daily life very differently than one that’s five miles away, and a “featured” project on a list still has design and permitting ahead of it even if voters approve it. Getting specific about what you’d actually want to avoid in a Charleston-area home search usually comes down to exactly this kind of local, address-by-address detail — not a countywide headline number.
Frequently Asked Questions
Is this a new tax, or an increase to an existing one?
Neither. It extends the existing half-cent transportation sales tax that’s been in place since 2004 and is set to expire. If approved, the tax rate itself doesn’t change — the county continues collecting the same half-cent rate for up to 25 more years.
When do I actually vote on this, and where can I see the full project list?
The referendum is on the ballot for the November 3, 2026 general election. Charleston County’s referendum website has the complete project list and an interactive map you can search by area.
Why did a similar tax vote fail in 2024?
The 2024 referendum was built around the Mark Clark Extension, a proposed I-526-to-James Island Connector highway that drew strong opposition over sprawl and marshland impact. It failed by nearly a 2-to-1 margin. The 2026 proposal removes that project and was rebuilt using public input collected after that vote.
Does the Long Point Road project in this referendum affect the interchange construction already underway?
No. The referendum funds a separate Long Point Road bridge project at Boone Hall Creek. The I-526/Long Point Road interchange rebuild that started construction this summer already has its own funding and executed construction contract, independent of this vote.
If the referendum passes, how soon would construction start on Mount Pleasant projects?
Passing the referendum secures funding, but named projects still need to go through design and permitting before construction begins, which typically takes time. The tax itself would take effect as early as 2027 if voters approve it.
Whether you’re buying near one of these corridors, selling a home that touches one, or just trying to understand what a specific project might mean for your day-to-day drive, we’d love to help you sort out what actually applies to your situation. Whether you’re buying or selling in Charleston, Mount Pleasant, or Daniel Island, reach out anytime for a private, no-pressure consultation — no obligation, just clarity on where things stand.
About 32 South Properties
32 South Properties is a real estate firm serving buyers and sellers throughout Charleston and the surrounding Lowcountry. Backed by more than 20 years of real estate experience, the team provides personalized guidance, local market expertise, and dedicated support from the first conversation through closing. Connect with 32 South Properties at 32south.com.
