From I-35 south (via TX195):  
Going north on I-35, take exit 266 (TX-195 N/Killeen).  Merge onto I-35 Frontage Road.  Turn left at TX-195W. 
Turn right at W. Elms Road.  Stonegate Estates is about 1/2 mile down on the left.

From I-35 south (via US-190):
Going north on I-35, take exit 294A (TX-253 Spur/Central Avenue).  Merge onto I-35 Frontage Road.  Take ramp on left onto I-35S / US190W. 
Take a slight right at US-190W (signs for Killeen/Fort Hood). Take exit toward Trimmier Road/Jasper Road.  Merge onto E. Central Texas Expy. 
Turn left at W. Trimmier Road.  Turn right at E. Elms Road.  Stonegate Estates is about 1/2 mile down on the right.

From I-35 north (via US-190):
Going south on I-35, take the slight right at US-190W (signs for Killeen/Fort Hood). Take exit toward Trimmier Road/Jasper Road. 
Merge onto E. Central Texas Expy.  Turn left at W. Trimmier Road.  Turn right onto E. Elms Road.  Stonegate Estates is about 1/2 mile down on the right.

From Fort Hood:
Going south on Clear Creek Road toward Tank Destroyer Blvd.  Turn left at US-190 Access Road.  Take ramp onto US-190E. 
Take exit toward Trimmier Road.  Merge onto E. Central Texas Expy.  Turn right on W. Trimmier Road.  Turn right on E. Elms Road. 
Stonegate Estates is about 1/2 mile down on the right.