Cascades at Onion Creek

4800 Seadrift Drive, Austin, Texas 78747

Under Construction

Total Units

242

Discover the vibrant Cascades at Onion Creek in Austin, brought to life by M/I Homes, where you can enjoy a fantastic array of amenities including a park, swimming pool, and a fun water playground!

New Homes in South Austin

Looking for a new place to call home in south Austin? Look no further than Cascades at Onion Creek! Our brand new community of single family homes is located just off the I-35 service road, south of the Onion Creek Parkway exit.

With easy access to Downtown Austin and service from Austin ISD schools, Cascades at Onion Creek is the perfect choice for young professionals, growing families, and downsizers alike.

About our New Homes in South Austin

Cascades at Onion Creek is currently planned to be made up of just under 500 new homes that are built on 50-foot-wide homesites and will feature floorplans from our sought-after Capital Series and brand-new Smart Series.

Our all-new Smart Series floorplans are designed to cater to modern living needs with exceptional functionality and style. This series features 6 distinct floorplans, including 2 single-story and 4 2-story designs. These homes range from 1,553 to 2,778 square feet, offering 3 to 5 bedrooms and 2 to 3 bathrooms. Select floorplans also include versatile spaces such as a flex room, a study, and a game room, providing plenty of options to suit your lifestyle

Promotions & offers

Current offers from the builder. Terms, eligibility and availability are set by the builder.

Oct 29, 2026 – Nov 8, 2026

Great Rate and 2/1 Buydown or Closing Costs

For a limited time, enjoy first-year rates as low as 3.25% Rate* / 5.999% APR* with a temporary 2/1 Buydown on a 30-year FHA fixed-rate loan* or up to 3% in closing costs.**

View offer

Oct 27, 2026 – Dec 31, 2026

Take Advantage of Our Exclusive Home-to-Sell Program

If you need to sell your current home before buying a new one, M/I Homes' House-to-Sell Program can help make the process easier. Sell with confidence and enjoy a smoother path to your new home, plus the opportunity to offer buyers up to 3% of you...

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Sales office

Mon-Sat 10am-6pm; Sun 12pm-6pm

CST (UTC-6)

Sales agent: Valerie Escobedo

Amenities

Park

Parking

Swimming Pool

Water Playground

Playground

Dog Park

Clubhouse

Walking Trails

Park

Parking

Swimming Pool

Water Playground

Playground

Dog Park

Clubhouse

Walking Trails

Home designs (6)

12 Quick Move-In lots across 3 plans — open Quick Move-In.

Single-family

Carousel — use arrows to browse images for this design, or tap the photo to open the floor plan.

Quick Move-In

Garner

From$332,990

3 Beds2 Baths2 Car garage1,553+ sq ft

Single-family at Cascades at Onion Creek. 2 Quick Move-In homes in this plan — ask the sales team about finishes and closing timelines.

View floor plan

5 homesites

Status	Unit	Type	Beds	Baths	Garage	Price/Sq Ft	Price	Additional Info
Quick Move-In	LOT 3804 - 4513 Bridal Veil Drive	Single Family Home	3	2	2	$232/sq ft	$359,990	Move-in date 2026-10-28
Quick Move-In	LOT 3841 - 4600 Lava Island Drive	Single Family Home	3	2	2	$225/sq ft	$349,990	Move-in date 2026-10-09
Now Building	LOT 4931 - 4600 Tumalo Drive	Single Family Home	3	2	2	$238/sq ft	$369,390	Move-in date 2027-04-30
Now Building	LOT 4406 - 12312 Dillon Falls Drive	Single Family Home	3	2	2	$235/sq ft	$364,990	Move-in date 2027-03-31
Now Building	LOT 3835 - 4712 Lava Island Drive	Single Family Home	3	2	2	$232/sq ft	$359,990	Move-in date 2026-11-09

Legend

Now Building
Quick Move-In

Single-family

Carousel — use arrows to browse images for this design, or tap the photo to open the floor plan.

Quick Move-In

Abilene

From$335,990

3 Beds2 Baths2 Car garage1,640+ sq ft

Single-family at Cascades at Onion Creek. 2 Quick Move-In homes in this plan — ask the sales team about finishes and closing timelines.

View floor plan

5 homesites

Status	Unit	Type	Beds	Baths	Garage	Price/Sq Ft	Price	Additional Info
Now Building	LOT 4403 - 12400 Dillon Falls Drive	Single Family Home	3	2	2	$232/sq ft	$379,990	Move-in date 2027-03-31
Quick Move-In	LOT 3702 - 4516 Bridal Veil Drive	Single Family Home	3	2	2	$213/sq ft	$349,990	Move-in date 2026-10-28
Now Building	LOT 4936 - 4504 Tumalo Drive	Single Family Home	3	2	2	$235/sq ft	$384,990	Move-in date 2027-03-31
Quick Move-In	LOT 3506 - 12005 Dillon Falls Drive	Single Family Home	3	2	2	$213/sq ft	$349,990	Move-in date 2026-10-09
Now Building	LOT 4007 - 4601 Tumalo Drive	Single Family Home	3	2	2	$228/sq ft	$374,390	—

Legend

Now Building
Quick Move-In

Single-family

Carousel — use arrows to browse images for this design, or tap the photo to open the floor plan.

Now Building

Sheldon

From$353,990

3–4 Beds2.5 Baths2 Car garage2,034+ sq ft

Single-family at Cascades at Onion Creek. 3 homes are now building — ask the sales team for timelines and personalization options.

View floor plan

3 homesites

Status	Unit	Type	Beds	Baths	Garage	Price/Sq Ft	Price	Additional Info
Now Building	LOT 4935 - 4508 Tumalo Drive	Single Family Home	3	2.5	2	$176/sq ft	$357,990	Move-in date 2027-04-30
Now Building	LOT 4401 - 12408 Dillon Falls Drive	Single Family Home	4	2.5	2	$192/sq ft	$389,990	Move-in date 2027-03-31
Now Building	LOT 4407 - 12308 Dillon Falls Drive	Single Family Home	3	2.5	2	$192/sq ft	$389,990	Move-in date 2027-03-31

Legend

Now Building

Single-family

Carousel — use arrows to browse images for this design, or tap the photo to open the floor plan.

Quick Move-In

Falcon

From$371,990

4 Beds2.5 Baths2 Car garage2,323+ sq ft

Single-family at Cascades at Onion Creek. 1 Quick Move-In home in this plan — ask the sales team about finishes and closing timelines.

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2 homesites

Status	Unit	Type	Beds	Baths	Garage	Price/Sq Ft	Price	Additional Info
Quick Move-In	LOT 3837 - 4620 Lava Island Drive	Single Family Home	4	2.5	2	$164/sq ft	$379,990	Move-in date 2026-09-11
Now Building	LOT 4934 - 4512 Tumalo Drive	Single Family Home	4	2.5	2	$176/sq ft	$409,990	Move-in date 2027-03-31

Legend

Now Building
Quick Move-In

Single-family

Carousel — use arrows to browse images for this design, or tap the photo to open the floor plan.

Now Building

Caprock

From$387,990

4–5 Beds2.5–3 Baths2 Car garage2,543+ sq ft

Single-family at Cascades at Onion Creek. 4 homes are now building — ask the sales team for timelines and personalization options.

View floor plan

7 homesites

Status	Unit	Type	Beds	Baths	Garage	Price/Sq Ft	Price	Additional Info
Now Building	LOT 4930 - 4604 Tumalo Drive	Single Family Home	5	3	2	$172/sq ft	$437,140	Move-in date 2027-04-30
Now Building	LOT 4404 - 12320 Dillon Falls Drive	Single Family Home	5	3	2	$171/sq ft	$434,990	Move-in date 2027-03-31
Now Building	LOT 4937 - 4500 Tumalo Drive	Single Family Home	5	3	2	$169/sq ft	$429,990	Move-in date 2027-03-31
Now Building	LOT 4402 - 12404 Dillon Falls Drive	Single Family Home	5	3	2	$169/sq ft	$429,990	Move-in date 2027-03-31
Now Building	LOT 4008 - 4605 Tumalo Drive	Single Family Home	4	2.5	2	$170/sq ft	$432,790	—
Now Building	LOT 4923 - 4708 Tumalo Drive	Single Family Home	5	3	2	$179/sq ft	$455,140	—
Now Building	LOT 2701 - 4800 Seadrift Drive	Single Family Home	4	3	2	$186/sq ft	$472,290	—

Legend

Now Building

Single-family

Carousel — use arrows to browse images for this design, or tap the photo to open the floor plan.

Now Building

Eisenhower

From$396,990

4–5 Beds2.5–3 Baths2 Car garage2,728+ sq ft

Single-family at Cascades at Onion Creek. 1 home is now building — ask the sales team for timelines and personalization options.

View floor plan

2 homesites

Status	Unit	Type	Beds	Baths	Garage	Price/Sq Ft	Price	Additional Info
Now Building	LOT 4405 - 12316 Dillon Falls Drive	Single Family Home	5	3	2	$161/sq ft	$439,990	Move-in date 2027-03-31
Now Building	LOT 4004 - 4513 Tumalo Drive	Single Family Home	5	3	2	$165/sq ft	$451,340	—