What’s Coming to Grayson County? The Complete Development Tracker

Grayson County is no longer a place where "what's next" lives only in rumor. Chip plants are shipping product. Rail dirt is moving in Gunter. U.S. 75 is a work zone from the Collin County line through Sherman and Denison. Housing maps in Van Alstyne and west of Preston Road are measured in hundreds and thousands of lots.

This page is a living development tracker—a newcomer-friendly status board, not another long essay. Entries are short: place, what it is, latest status, and why it matters. For the deeper narrative on how these pieces fit together, read our companion piece: Grayson County Is Changing: The 10 Projects Reshaping Our Future.

How to use this tracker: Skim by status first. "Under construction" means dirt, steel, or pavement is actively moving. "Approved / breaking ground" means entitlements or groundbreaking are real, but the project may still be early. "In planning / studies" means public studies, council votes, or company planning—not a finished road or neighborhood. "Watch list" means keep an eye on it; timelines are soft.

Last updated: early September 2026 (America/Chicago), refreshing late-August research against TxDOT's Aug. 31, 2026 Paris District road report, NTTA Phase 4 updates, city and school sources, and company statements. Company job and investment figures are labeled as company claims.

The U.S. Census Bureau estimated Grayson County's population at 153,613 as of July 1, 2025—about 13.3% above its 2020 base. (Census.gov)

Under construction

Texas Instruments — Sherman megasite

Place: Sherman
What: 300mm wafer fab campus; TI describes plans for up to four connected fabs (SM1–SM4) and a potential $40 billion Sherman investment.
Status: TI announced SM1 started production on Dec. 17, 2025. TI.com lists SM1 as in production. The Dallas Morning News reported that SM2's building is largely in place, while SM3 and SM4 remain tied to demand. TI's company claim: up to 3,000 direct jobs plus thousands of indirect jobs if the full campus is built.
Why it matters: Sherman is becoming a shift-change employment destination—not only a stop on the drive to Collin County. (TI.com; Dallas Morning News)

GlobalWafers / GlobiTech — Sherman

Place: Sherman
What: 300mm silicon wafer plant (GlobiTech is the local subsidiary). Contemporary reporting put Phase 1 near $3.5 billion.
Status: Phase 1 opened May 2025. In early 2026, company leadership said customers were asking for more capacity and that Phase 2 was in planning, with no fixed public construction start.
Why it matters: Wafer supply next to chip fabs pulls contractors and skilled trades even when the next building is still a maybe. (Data Center Dynamics)

U.S. 75 widening — Van Alstyne, Howe, Sherman, Denison

Place: Countywide along U.S. 75
What: Widening mainlanes four to six, bridge work, U-turns, converting many two-way frontage roads to one-way.
Status: TxDOT's Paris District report dated Aug. 31, 2026 still lists active work from the Collin County line to FM 902 (65 mph work zone). Frontage roads in Van Alstyne and Howe are largely one-way. A separate project from U.S. 82 to North Loy Lake Road is rebuilding through Sherman and Denison. Night closures at FM 121 (Exit 51) were posted for Aug. 31–Sept. 4, 2026. TxDOT's Anna "Last Mile" widening south of the line reached final completion in July 2026.
Why it matters: This is daily commute life. (KSST / TxDOT; North Texas e-News)

BNSF Logistics Center North Dallas — Gunter

Place: Gunter, near SH 289
What: 944-acre multi-customer, rail-served industrial park. Local TV put Phase 1 near $500 million.
Status: Groundbreaking March 12, 2026. BNSF says Phase 1 takes about 19 months. A July 2025 city–railroad path includes a 500–800 foot buffer from existing homes plus sound and lighting limits. Longer-term job and "$1 billion+" impact figures are BNSF projections, not independent tallies.
Why it matters: A small city is absorbing a regional freight park. (BNSF; KXII)

Platinum Ranch infrastructure — Gunter ISD

Place: West of Preston Road / SH 289
What: Centurion American master plan. Bond docs: about 1,715 acres, roughly 4,224 single-family lots; Improvement Area #1 about 242 acres / 962 homes.
Status: Infrastructure began Q1 2026, expected through Q2 2027, backed by about $61.7 million in special-assessment bonds (Aug. 2026). First builders named include D.R. Horton, Lennar, First Texas Homes, and Coventry Homes. Lot deliveries targeted around mid-2027.
Why it matters: Thousands of homes would reshape taxes, 289/FM 121 traffic, and Gunter ISD. (FMS Bonds; Centurion)

Preston Harbor — Denison / Lake Texoma

Place: Northwest of Denison
What: Lake-oriented master plan; early work is streets, water, and sewer for first pads.
Status: Denison extended the TIRZ 10 years in July 2026. In August 2026, the city approved a nearly $23 million bond for infrastructure for 374 homes in the first two phases (PID assessments; city leaders said existing taxpayers are not liable). Home construction targeted for early 2027 after utilities. A Margaritaville resort remains a stated plan, not an open hotel.
Why it matters: North-county bet on living and overnighting at the lake. (KXII)

Designing Downtown Denison — Phase 2

Place: Downtown Denison
What: Streetscape / Main Street public realm.
Status: Wrapping summer 2026; ribbon dedication Oct. 15, 2026. Main Street reopened to pedestrians.
Why it matters: Walkable downtown is part of Denison's pitch with the lake. (KTEN; KXII)

School construction underway

Sherman ISD: $540 million May 2023 bond—three elementaries opened for 2025–26; high-school addition in 2025; new south elementary planned for fall 2028 on a 21.6-acre West Travis Street site selected June 2026. (Sherman ISD)
Gunter ISD: May 2022 bond finish-outs—turf May 2026; restrooms and Tiger Lane access August 2026; schoolhouse-to-admin restoration into early 2027. (Gunter ISD)
Airport: Rise Aviation broke ground April 16, 2026 on a 63,000-sq-ft hangar at North Texas Regional Airport–Perrin Field. Commercial airline service remains an aspiration. (KXII; KTEN)

Dallas North Tollway Phase 4A (toward the Grayson line)

Place: Collin/Denton corridor north of U.S. 380
What: ~13.7-mile Phase 4 to the Collin/Grayson line; 4A is U.S. 380 to FM 428.
Status: Under construction; NTTA targets opening late 2027.
Why it matters: Southwest Grayson land and subdivision maps already price in a second north–south spine. (NTTA)

Preston Crossings / The Bridges — FM 121

Place: Between Van Alstyne and Gunter
What: Residential around The Bridges Golf Club; Mattamy phase of 140 homes.
Status: Models late 2025 / sales early 2026; broader Centurion plan continues.
Why it matters: Amenity growth on a corridor that used to feel like open prairie. (Mattamy / prior GCL coverage)

Approved or breaking ground

Solara — Van Alstyne

Place: Near FM 121 and Hackberry Road
What: 176-acre master plan; about 453 lots; ~9 acres dedicated as city park at the entrance.
Status: Annexed and zoned June 2026 after neighbor concerns about Hackberry Road safety. Approved—not a finished neighborhood yet.
Why it matters: DFW growth physically crossing the county line. (KTEN; KXII)

The Landing — U.S. 75 & FM 121, Van Alstyne

Place: Northwest corner of 75 and 121
What: ~70 acres for retail/restaurants plus apartments capped at 280 units.
Status: Council rezoning approved (2026). Vertical build depends on developers.
Why it matters: Keeps trips in town—and adds cars to the 75/121 knot. (KTEN)

FM 121 / U.S. 75 interchange expansion

Place: Van Alstyne
What: About $67.2 million interchange (lanes, U-turns, new 75 bridge).
Status: Added as tier-one in TxDOT's 10-year plan (July 2026 local reporting). Local matches cited: city $4.5M, county $1.5M, transportation org $500K. Construction as early as late 2027 if funding holds.
Why it matters: The missing piece between new rooftops and a six-lane freeway. (KXII)

In planning or studies

DNT Phase 4B + Grayson County Tollway concepts

Phase 4B (FM 428 to the county line) has no opening date yet. Any extension into Grayson would be a Grayson County Regional Mobility Authority project, not NTTA's. TxDOT's Grayson County Tollway study still describes a possible ~37-mile facility and a ~4.3-mile spur near Gunter—studies, not funded construction. (NTTA; TxDOT)

GlobalWafers Phase 2 / TI SM3–SM4

Phase 2 wafer capacity remains planning pending customer contracts. TI says later Sherman fabs are equipped as demand warrants. Do not treat full multi-fab buildouts as certain tomorrow. (Data Center Dynamics; TI.com)

Taylor Ranch

Roughly 500 acres near Platinum Ranch, planned around a ~40-acre private lake. Earlier stage—no public builder sales as of our last dedicated report. (Prior GCL / Centurion coverage)

Watch list

Van Alstyne ISD: Voters rejected a $550 million bond in November 2025 (~57% against); Tom Bean ISD's smaller bond also failed. Enrollment pressure continues without that package. (KXII; KTEN)
Perrin Field passenger service: Aspiration only.
Preston Harbor resort branding: Stated vision, not an operating resort.

Quick read for newcomers

Jobs / industry: Sherman (TI + GlobalWafers), Gunter (BNSF).
Roads you'll feel first: U.S. 75 work zones; FM 121 growth; DNT Phase 4A south of the line.
Rooftops: Platinum Ranch, Solara / The Landing, Preston Harbor, Preston Crossings.
Schools: Sherman ISD building; Van Alstyne ISD managing without the 2025 bond; Gunter ISD finishing 2022 projects under new pressure.

Growth here is a set of decisions still being made in city halls, at TxDOT hearings, and in school elections—not a single slogan. We will keep updating this tracker when projects actually change status.