15236 Grumbles Ln, Austin, TX 78738

Welcome to 15236 Grumbles Lane, a 4,500 ± sq. ft. ranch-style estate built by Ames Design Build and set on 1.6 acres in the prestigious Signal Hill gated community. With a low 1.625% tax rate and access to highly acclaimed LTISD schools, this residence combines refined living with everyday practicality.

Outdoor Retreat

The property has been thoughtfully designed by Colab Landscape Architects, featuring native Texas plants that highlight seasonal color and resilience. Custom steelwork — including planters, gazebos, and swings — adds artistry and dimension throughout the grounds. At the heart of the backyard, a resort-style pool creates a private oasis, surrounded by shaded terraces and outdoor gathering spaces. A 6,000-gallon rainwater collection system sustains the landscape with eco-friendly efficiency.

Luxury Interiors

Inside, the open floor plan flows seamlessly from spacious living areas to the outdoor retreat, with walls of glass framing offering views of the elaborate outdoor living space. At the center, the chef’s kitchen boasts an upgraded appliance package, custom cabinetry, and an expansive island designed for both gourmet cooking and casual entertaining. Every detail of modern convenience is elevated through whole-house automation powered by Control4, integrating audio, visual, and automated shades to perfectly tailor the atmosphere for any occasion. Together, these elements create interiors that are as functional as they are beautiful — a blend of style, comfort, and innovation.

Signal Hill is one of the smaller, quieter neighborhoods in southwest Austin's 78748 zip code, the kind of place where neighbors actually wave from their driveways and most homes have been owned by the same families for years. Built primarily across two phases in the 1990s and early 2000s, Signal Hill sits at a price point that has become rare in Austin - a median around $425,000 puts it well below most of the city's established neighborhoods, which makes it one of the more accessible entry points into Austin ISD school zones.

Signal Hill sits in southwest Austin near the intersection of Slaughter Lane and Manchaca Road, with quick access to MoPac and I-35 for downtown commutes that run about 20 minutes outside of rush hour. South Austin's commercial corridor along Slaughter Lane handles weekly errands - H-E-B, restaurants, and shopping all within five minutes. The neighborhood backs up to wooded land that gives it a more rural feel than its proximity to major roadways would suggest.

The housing stock is straightforward Texas suburban - traditional and ranch-style homes built mostly between 1995 and 2005, with brick and stone facades, two- and three-car garages, and the kind of practical layouts that hold their value because they work for families. Lots range from 0.15 acres in the older sections to about 0.5 acres in the larger phase, with most homes between 1,800 and 3,200 square feet. Pricing typically falls between $375,000 and $525,000, with some larger lots and updated homes pushing higher.

Signal Hill is served by Austin ISD. Baranoff Elementary handles the elementary years and has a steady reputation for solid academics and engaged parent involvement. Bailey Middle School serves the middle school years, and most students continue to Akins High School. The schools are close enough that walking and biking are realistic options for elementary kids, which adds to the neighborhood character.

The lifestyle here is straightforward suburban with strong access to outdoor space. The Slaughter Creek Trail runs nearby for runners and cyclists. South Austin's restaurant scene along Slaughter and Manchaca handles casual dining and date nights. Onion Creek Metropolitan Park is a short drive south for hiking and disc golf. And the proximity to MoPac means Lady Bird Lake, Zilker, and downtown are all within reach for weekend plans.

Signal Hill works for families and first-time buyers who want Austin ISD schools without paying central Austin prices. It is more affordable than Circle C Ranch to the west and has more established trees and lot sizes than the newer Hays CISD developments further south. The tradeoff is that Signal Hill is small - inventory turns over slowly because owners tend to stay - so when something does come on the market, it usually moves fast. For buyers who can be patient and act decisively, this is one of the better-value pockets in southwest Austin.