Multifamily and Apartment Concrete in Austin, TX
Heritage Concrete Austin pours multifamily and apartment concrete in Austin, Texas: building slabs, parking lots and drive lanes, the walks and ramps between buildings, and the curbs and sidewalks along the street. By the Census Bureau's 2020–2024 survey estimates, about as many Austin homes sit in buildings of five or more units, 208,961, as in single-family detached houses, 209,772.
A site plan or a set of drawings is all it takes to get a free estimate. The slab design, parking layout, accessible routes and any work in the City right-of-way get covered at that stage.
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Apartment construction and post-tensioned concrete
Most Austin households rent: 257,933 of the city's 456,113 occupied homes, or 56.6%, in the same survey. Building permits for structures of five or more units covered 7,346 new homes in 2024 and 6,459 in 2025, by the Census Bureau's permit survey, and the City reports that apartment units delivered in 2025 fell 47% from 2024 while effective rents slipped 3.9%.
Post-tensioned floors and garages
Residential apartments appear on the Post-Tensioning Institute's list of buildings that use post-tensioned concrete, next to office buildings, high-rise condominiums and mixed-use projects. Its case for the method in buildings: structural members thinner than in concrete that isn't prestressed, which means lower overall building heights and lighter loads on the foundation. For parking structures, PTI points to long spans free of columns and fewer closely spaced joints.
Building slabs and site paving for apartment projects are part of Heritage Concrete Austin's commercial concrete work.
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(512) 588-2862Parking, driveways and walks on apartment sites
Multifamily housing is one of the uses the American Concrete Institute's lot guide names for concrete parking; thickness, joints and accessible stalls are covered on the concrete parking lots page.
Driveway approaches and the curb line
Under Austin's Transportation Criteria Manual, a driveway has to cross the curb line square to the street, at 90 degrees, and stay within the lot's own street frontage; using a neighbor's frontage takes that neighbor's written approval. A curb inlet needs 10 feet of clearance from the driveway, too. A new approach also means closing any old curb cut the property no longer uses, and building any required curb and gutter or sidewalk alongside it, set to the existing grade and line.
Walks and ramps between buildings
Where the 2010 ADA Standards apply, walking surfaces are held to a 1:20 running slope and a 1:48 cross slope at most, and a clear width no narrower than 36 inches. Anything steeper becomes a ramp, and ramp runs are limited to a 1:12 slope and a 30-inch rise each.
Heritage Concrete Austin also pours multifamily concrete in Cedar Park, where a May 2026 City report counts 5,374 existing multifamily units on 352.26 acres.
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(512) 588-2862
Duplex, two-unit and three-unit lots under HOME
Since February 5, 2024, the City's HOME Phase 1 rules have allowed up to three housing units on lots zoned SF-1, SF-2 and SF-3. In the first year, 436 new units were approved in two-unit, three-unit and duplex projects.
On those sites, buildings are capped at 40% coverage and impervious surfaces at 45% of the lot. In the front yard, impervious cover is capped at 40%, with no more than four parking spaces in the front street yard; the City may waive the front-yard limit where backing onto the street is unsafe and a circular drive or turnaround is needed. The City's first-year review found an average of 41.62% impervious cover per project, median 43.37%, close to the 45% ceiling, so every driveway and walk on these lots is measured against that limit.
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(512) 588-2862Multifamily concrete questions
Can a fourplex use a residential driveway in Austin?
Usually, if the street allows it. The Transportation Criteria Manual groups a driveway serving up to four multifamily units with those for single-family homes and duplexes as a minor driveway. Such driveways follow the City's Type I construction standard, and they can't connect to Level 3 or Level 4 streets, the bigger roads in the City's street system.
What permits does concrete work on an apartment site need in Austin?
It depends on where the concrete goes. On commercial projects, the City's permit exemption covers only sidewalks and driveways no more than 30 inches above the next grade that are not over a basement or story below, are not part of an accessible route and are not in a flood hazard area. Sidewalks, approaches and curb and gutter in the public right-of-way take a Driveway/Sidewalk permit, and the City accepts that application only from a contractor with its right-of-way license.
Does an apartment project have to build the public sidewalk?
Usually, when the building is new. When a new building goes up, or an addition reaches 50% or more of the floor area, the building permit has to show any sidewalk required by the Transportation Criteria Manual, and Austin holds back the certificate of occupancy until that sidewalk is in, unless a fee is paid in its place. A corner lot owes sidewalk only along its shorter street side.
Do garages and carports count against a three-unit lot's paving limit?
Yes. For duplex, two-unit and three-unit sites, garages and carports count toward both the 40% building coverage and the 45% impervious cover limits, and the City's impervious total also counts driveways, parking areas and concrete. Inside the area under the City's "McMansion" rules, a garage also counts toward the home's floor-area limit, while a carport or porch does not.
What does concrete for an apartment project cost?
No Austin figure for multifamily concrete was found. Nationally, one cost guide puts the foundation line for an apartment complex at $5.00 to $33.00 a square foot (a whole-foundation figure, not concrete alone; page dated 2023), and concrete parking runs $1,500 to $3,500 per stall nationally (2026). Heritage Concrete Austin prices slabs, paving and flatwork from the site plan for free.
Get a free estimate for apartment concrete
Call, or send the site plan or drawings. Heritage Concrete Austin prices building slabs, parking, walks and street work for multifamily properties free, and answers 24/7.