Prosper and Celina residents will vote Tuesday, Nov. 3, on four Collin County bond propositions totaling $817.5 million, with the largest chunk, $475 million, earmarked for road projects including Dallas North Tollway service roads and a US-75 Outerloop service road.
The Collin County Commissioners Court voted 4-0 on Monday, Aug. 10, to place the bond package on the ballot, according to Community Impact. Commissioner Duncan Webb was absent.
"They're going to have to pay the bill, so we want their voice on this decision," County Judge Chris Hill said at the Aug. 10 meeting.
What's in the package
The four propositions break down as:
- Proposition A, $296.5 million: Court and detention facility projects, including 550 new jail beds and finishing 15 courtrooms in the current courthouse expansion
- Proposition B, $475 million: Road improvements, including service roads for the Dallas North Tollway, the Outerloop west of US-75 and a service road from Farmersville to Rockwall County
- Proposition C, $6 million: Parks and open space
- Proposition D, $40 million: Elections and records storage facility
Commissioners chose the larger package over a roughly $481 million alternative that would have excluded a major highway project, the elections building and half the proposed jail beds.
Tax rate impact
The bond does not carry an automatic tax increase. If approved, the county's debt service rate could rise from 4.18 cents to a maximum of 4.95 cents per $100 of assessed value by 2031. That rate depends on population growth.
Collin County added nearly 43,000 residents between July 2024 and July 2025, ranking second nationally among counties gaining the most people in a single year, according to Hoodline. The county now has about 1.3 million residents. The countywide average home market value dipped slightly from $603,190 in 2025 to $588,119 in 2026, per certified appraisal data.
Why now
County Administrator Yoon Kim told commissioners the courthouse expansion that began after voters approved a $683 million bond in November 2023 ran short of funds. "Because of the current scope and our budget, we do not believe we can build out all 15 courtrooms at this time," Kim said.
On the jail side, about 1,200 inmates were housed at the county facility as of Aug. 10. Even with 550 new beds completed by late 2031, the jail would still be near capacity, Kim said.
Commissioners intentionally kept Proposition B's project list flexible to address needs as growth patterns shift, according to Community Impact. Collin County Engineering Director Clarence Daughtery said the $475 million could fund service roads for the Dallas North Tollway, the Outerloop west of US-75 and a route from Farmersville to Rockwall County.
The $40 million elections facility under Proposition D would replace leased space that costs the county about $650,000 per year. Commissioner Susan Fletcher said she didn't want to issue more bonds than necessary but didn't want to "hurt our own operations in the long run." If approved, construction could begin in 2027 at the county's Bloomdale Road headquarters in McKinney, where the county owns 400 acres.
Combined ballot load
The county bond joins a separate $600 million Collin College bond already set for the same ballot, putting more than $1.4 billion in combined infrastructure spending before voters this fall.
The voter registration deadline is Oct. 5. Early voting runs Oct. 19-25. Election Day is Tuesday, Nov. 3.
