Custom

ADU Construction

Services in Austin, Texas

Expert Accessory Dwelling Units for Austin Homeowners

Looking to add living space, generate rental income, or house extended family? Together Exterior specializes in custom ADU construction across Austin and Central Texas.

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Our ADU Construction Services

75 more icon

75+ ADUs Built in Austin

Full permit icon

Full Permitting Support

desing Build Services

Design-Build Services

5 years warranty

5-Year Warranty

financing available

Financing Available

Why Choose Us for Your Pool Project?

Licensed contractor

Licensed Contractors

  • Benefit: Fully licensed and insured for your protection
Quality Materiales

Quality Materials

  • Benefit: Premium materials for lasting durability
Custom desing

Custom Designs

  • Benefit: Tailored solutions to match your vision and space
Expert Installation icon

Expert Installation

  • Benefit: Skilled craftsmen with years of experience
Local Nowkledge

Local Knowledge

  • Benefit: Understanding of Austin’s climate and soil conditions

What is an ADU?

An Accessory Dwelling Unit (ADU) is a self-contained living space on the same property as your main home. ADUs can be:

Detached structures in your backyard

Garage conversions

Above-garage apartments

Attached additions with separate entrances

mart Reasons Austin Homeowners Choose ADUs

Custom ADU Additions and Home Expansions Designed for Austin Living

Rental Income

Generate $1,500-$3,000+ monthly from long-term or short-term rentals. Many ADUs pay for themselves in 5-8 years.

Multi-Generational Living

House aging parents or adult children while maintaining privacy for everyone.

Increased Property Value

ADUs typically add $150,000-$300,000 to your property value—often more than construction costs.

Home Office or Studio

Create a dedicated workspace separate from your main home.

Guest Accommodations

Provide comfortable, private space for visiting family and friends.

Complete Design-Build ADU Solutions

Full-Service Design

Our design team creates ADU plans that maximize your lot while meeting all Austin regulations. We handle:

Site analysis and feasibility studies

Architectural design

3D renderings

Material selection

Compliance review

Permitting & Approvals icon

Permitting & Approvals

We manage the entire permitting process:

Zoning verification

Permit applications

Plan submissions

Inspection coordination

Certificate of Occupancy

Construction & Project Management

Expert construction from foundation to finish:

Site preparation

Foundation work

Framing and roofing

MEP (mechanical, electrical, plumbing)

Interior finishes

Landscaping restoration

ADU Options

Detached Backyard iconDetached Backyard icon

Detached Backyard ADUs

Most popular option. Standalone structure in your backyard. Size: 400-1,200 sq ft |

Garage Conversions

Garage Conversions

Convert existing garage into livable space. Size: 300-600 sq ft |

Above-Garage icon

Above-Garage ADUs

Build living space above existing or new garage. Size: 500-900 sq ft |

Additions

Addition attached to main home with separate entrance. Size: 500-1,000 sq ft |<

What You Need to Know

Austin’s ADU regulations (updated 2024) make building easier:

You don't have to live on-site

No Parking Required – In most situations

Up to 1,100 sq ft – Or 50% of main house size

Reduced Setbacks – More flexible placement

Short-Term Rentals Allowed – With proper licenses

  • Austin’s ADU regulations (updated 2024) make building easier:
Lot must meet minimum size requirements icon

Lot must meet minimum size requirements

Restricted icon

Some HOAs have additional restrictions

Heritage tree protection may apply

Impact fees may apply

We handle all compliance issues for you.

What Does an ADU Cost in Austin?

Budget Range:

$120,000 - $280,000 (complete turnkey)

Cost Per Square Foot:

Cost Per Square Foot: $250-$400/sq ft

Factors Affecting Cost:

ADU Construction Beautiful

Size and complexity

Site conditions (slope, utilities, trees)

Finish level (budget to luxury)

Foundation type

Utility connections

Permitting fees

Our estimates include:

Design & Permitting icons
Foundation & Framing icon
MEP Rough-In icon
Inspections
Interior Finishes icon
FInal Inspection

Weather, inspection schedules, and project complexity affect timelines.

Make Your ADU Affordable

WE OFFER FINANCING OPTIONS

Home equity

Home Equity Line of Credit (HELOC)

cash out icon

cash out icon

Industrial-strength

construction

Impact fees may apply

Popular Floor Plans

Studio Layout icon

Studio Layout (400-600 sq ft)

- Open living/sleeping area
- Full kitchen
- Full bathroom
- Covered patio

One-Bedroom (600-800 sq ft)

- Separate bedroom
- Living area
- Full kitchen
- Full bathroom
- Storage/laundry

Two-Bedroom (800-1,100 sq ft)

- Two bedrooms
- One or two bathrooms
- Full kitchen
- Living room
- Laundry
- Optional loft

Popular Additions

Energy Eficience icon

Energy Efficiency:

  • Spray foam insulation
  • High-efficiency HVAC
  • LED lighting
  • Low-E windows
  • Solar panels ready
Outdoor Living icon

Outdoor Living:

  • Covered patios
  • Decks
  • Landscaping
  • Outdoor shower
  • Fire pit area

Modern Amenities:

  • Smart home technology
  • Luxury finishes
  • Built-in storage
  • Washer/dryer hookups
  • EV charging prep

Austin's ADU Experts

75 more icon

75+ ADUs Built – Extensive experience

Full permit icon

Local Permitting Experts – We know Austin regulations

desing Build Services

Design-Build – One team, one contract

Transparent Pricing

ransparent Pricing – No surprises

5 years warranty

Quality Construction – 5-year warranty

On-Time Completion icon

On-Time Delivery – 94% on schedule

Color consultation and design

Direct Communication – Work with the owner

Recent Austin ADUs

Modern Studio ADU – Travis Heights

640 sq ft | Completed Sept 2024 | Features: Vaulted ceilings, full kitchen, luxury bath, covered patio

Two-Bedroom ADU – Cedar Park

950 sq ft | Completed May 2024 | Features: Two bedrooms, 1.5 baths, separate laundry, deck

Garage Conversion – South Austin

480 sq ft | Completed March 2024 | Features: Studio layout, murphy bed, kitchenette

Jennifer M., South Austin
"Carlos and his team built our backyard ADU in 2023. From design to completion, the process was smooth. We're now renting it long-term for $2,200/month. Best investment we've made!" .
Robert & Lisa K., Round Rock
"We converted our garage into an ADU for my mother-in-law. Together Exterior handled everything—permits, construction, inspections. She loves it, and we love having her close by."
David T., Georgetown
"Professional from start to finish. Our ADU came in on budget and ahead of schedule. The quality is outstanding."

ADU Construction Across Greater Austin

Yes. Property tax will increase based on added value. However, rental income typically offsets this.

Typically 5 feet from rear/side property lines. We verify exact requirements for your lot.

Usually no. Austin's updated regulations don't require additional parking for most ADUs.

There's no owner-occupancy requirement in Austin.

We design around heritage trees to maintain compliance and preserve your trees.

We build ADUs throughout:

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Austin (all areas)

Westlake Hill icon

West Lake Hills

Rollingwood icon

Rollingwood

Sunset valley icon

Sunset Valley

Cedar Park icon

Cedar Park

Round Rock icon

Round Rock

Pflugerville icon

Pflugerville

Georgestown icon

Georgetown

BUda icon

Buda

Kyle icon

Kyle

Dripping Springs icon

Dripping Springs

Beecave icon

Bee Cave

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Lakeway

Ready to Add an ADU Construction to Your Austin Property?

Let’s discuss your vision and property. We’ll provide honest feedback on feasibility, timeline, and investment.

Serving Austin, Texas

We proudly serve Austin, Texas and surrounding communities with professional pool installation and renovation services. Ready to create your dream pool? Contact Together Exterior & Outdoor for a free consultation. Let us bring your backyard vision to life with a custom pool designed specifically for your Austin home.

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