The LINE Austin — Onyx Ballroom & Lady Bird Lake Infinity Terrace at The LINE Austin
Conference & Seminar Salon
Verified 96/100 · 2026-10-31 · Verified Lady Bird Lake Ballroom & Waterfront Terrace Dossier
Hybrid Outside AV Policy ★ 4.2 Google (615)

The LINE Austin ↗

The LINE Austin — Onyx Ballroom & Lady Bird Lake Infinity Terrace

5,280 sq. ft. modernist Onyx Ballroom + lakeside saltwater infinity terrace perched directly on Lady Bird Lake & the Congress Bat Bridge—90 seconds from JW Marriott.

111 E Cesar Chavez St, Austin, TX 78701 · 2-min walk from JW Marriott Austin (90-Second Walk North) & Austin Marriott Downtown (2-Min Walk East) · 13 mins to AUS Airport
Seated Rounds 310
Reception 500
Theater 440
Classroom 250
Board / U 72
Floor Area 9,400 sf
Ceiling 16 ft
Sightlines Column-Free

Transparent Out-the-Door Event Ledger

All-In Budget Estimate: The LINE Austin — Onyx Ballroom & Lady Bird Lake Infinity Terrace (230 Guests)

0% Municipal LET · TX Ch. 183 Mixed Beverage Rule

Contract basis: F&B Minimum Spend (Room Rental Waived) · Includes Texas's statutory +35.3% service-and-tax stack upfront.

Statutory Cost Line Item Standard Weekday Peak Festival / Conference Week
Minimum F&B / Base Buyout Commitment $20,000 $52,000
Dedicated Space / Room Rental Fee $3,000 $3,000
Pre-Fee Contract Subtotal $23,000 $55,000
Mandatory Admin & Service Charge (25%) Taxable · TX § 151.007
$5,750 $13,750
Austin / Texas Sales Tax (8.25% on Subtotal + Admin Fee) $2,372 $5,672
0% Municipal LET · TX Ch. 183 Mixed Beverage Rule $0 $0
True Out-the-Door Total
+35.3% statutory stack above quoted minimum
$31,122
$135 / guest all-in
$74,422
$324 / guest all-in

Statutory Note: Austin and the State of Texas impose 0% municipal live entertainment tax on private venue buyouts, live bands, weddings, or corporate concerts. Hosted open bars follow Texas Tax Code Ch. 183 Mixed Beverage tax rules; qualified 501(c)(3) charities exempt 8.25% sales tax via TX Comptroller Form 01-339.

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Ideal Program Fit

When to book The LINE Austin — Onyx Ballroom & Lady Bird Lake Infinity Terrace

  • 150–400 pax creative tech conferences, AI founder summits & SXSW Brand Houses wanting mid-century architectural soul 90 seconds from JW Marriott
  • 120–280 guest modern waterfront Austin weddings pairing Lady Bird Lake sunset cocktails with 428 on-site boutique hotel rooms

Candid Producer Considerations

When to consider another Austin room

  • Mega-expos requiring 30-foot trade-show truss heights (choose Palmer Events Center)

Verified Google Reviews · Arlo Grey by Kristen Kish

What guests note about the room & Austin hospitality

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“Time you say the service was pretty good. Very helpful. Had a lot of information also made note that if you have any allergies or dislikes. You get to see "lake" from some of the seating areas. It's a lot noisier than you thought. Think…”

Kats food cravings and finds ★ 4.0 · 3 weeks ago

“I could never put into words how special this evening was, and how my birthday dinner was the BEST I have had in 41 years in Austin. The service was more impressive than the sports coat establishment I have dined at multiple times in NOLA,…”

Stacie Gutierrez ★ 5.0 · 5 months ago

20-Point Architectural & Operational Dossier

Every detail answered. Before you tour.

Unredacted Venue Specification

01
Identity & Access Exact Space Identity & Curbside Drop-Off
111 E Cesar Chavez St (use Brazos St / Cesar Chavez off-bridge porte-cochère); pairs the 5,280 sq. ft. column-free Onyx Ballroom & glass pre-function gallery with the waterfront lakeside infinity-pool lawn overlooking Lady Bird Lake. Physical address: 111 E Cesar Chavez St, Austin, TX 78701.
02
Architecture Usable Square Footage & Natural Light
9,400 usable sq. ft. with 16-ft ceiling clearance. Features natural daylight or private outdoor terrace/patio access.
03
Capacities Verified Fire-Marshal & BEO Layout Capacities
Seated Rounds: 310 · Standing Cocktail: 500 · Theater: 440 · Classroom: 250 · Boardroom / U-Shape: 72
04
Acoustics Acoustic Isolation & Door Privacy
Dedicated private closeable doors for confidential keynotes and executive toast audio. Onyx Ballroom subdivides cleanly via STC-52 acoustic walls for multi-track tech summits and black-tie dinners, opening directly onto lakeside reception decks shaded by cypresses.
05
Corridor Timing Badge-to-Door Convention Walk & Airport Timing
Nearest anchor facility: JW Marriott Austin (90-Second Walk North) & Austin Marriott Downtown (2-Min Walk East). 2-minute badge-to-door walk; 13 minutes from Harry Reid International (LAS). Sits directly at Congress Ave & E Cesar Chavez on the Ann and Roy Butler Hike-and-Bike Trail—90 seconds on foot from JW Marriott Austin.
06
Contracting Pricing Structure & Minimum Spend Mechanics
$3,000 ballroom/terrace setup (routinely waived on 60+ room-night LINE blocks) + $20K weekday / $52K+ SXSW, Consensus & F1 F&B minimum (+25% service charge taxed at 8.25% TX sales tax).
07
Statutory Math Mandatory Admin Charge & Nevada Sales Tax Stack
Charges a 25% mandatory administrative/service fee (subject to Nevada sales tax under NRS 372) plus 8.25% Clark County sales tax.
08
Tax Compliance Nevada 9% Live Entertainment Tax (LET) Rules
0% municipal Live Entertainment Tax in Texas/Austin on private corporate conferences, galas, and weddings; hosted bars carry Texas's 8.25% Mixed Beverage Sales Tax under Texas Tax Code Ch. 183.
09
AV & COI Outside AV Vendor Policy & COI Requirements
Hybrid Policy (Outside Production Allowed w/ House Rigging/Patch). Texas Right-to-Work (Texas Labor Code Ch. 101) allows independent Austin LED wall, keynote staging, and wedding band crews with a $3M–$5M COI and modest ~$550 house patch/liaison fee ($0 fee for acoustic/DJ setups on the lakeside terrace).
10
Sightlines Ceiling Clearance, Columns & Rigging Points
16 ft ceiling · 100% column-free sightlines across the main floor. 16-foot brutalist-warm plaster-and-oak ceiling across a 100% pillarless ballroom floor plus direct water-level vistas of kayakers and the Congress Bridge bat flight.
11
Connectivity Dedicated Power Drops, Hardline & Wi-Fi Pricing
100A 3-phase ballroom shore power, dedicated conference fiber VLANs ($850–$2,400/day), and full-strength 5G along the Lady Bird Lake glass promenade.
12
Logistics & Labor Freight Dock Load-In & Union Jurisdictions
Brazos St commercial loading bay feeds direct freight elevators to the ballroom and lakeside deck—zero union drayage.
13
Culinary & Bar Catering Execution, Bar Tiers & Dietary Protocols
Banquet menus influenced by Top Chef winner Kristen Kish's Arlo Grey culinary team on property—handmade pastas, Texas Gulf red snapper, smoked short rib, and TABC botanical agave bars (501(c)(3) tax exemption honored via Form 01-339).
14
Brand Activations Custom Branding, Wraps & Wayfinding Permissions
Pre-function gallery wall vinyls, lakeside pool-deck lounge branding, custom conference credential desks, and full SXSW multi-day house customization.
15
Operations Load-In Window, Curfew & Strike Overtime
24-hour ballroom holds available on multi-day summits; outdoor lakeside terrace amplified audio moves indoors into the Onyx Ballroom at 10:30 PM per City of Austin Ch. 9-2 rules.
16
Risk & Terms Deposit Schedule, Attrition & Final Guarantee
Tiered hotel deposit schedule; combine seamlessly with 428 on-site LINE rooms via LiteAPI or negotiated group blocks.
17
Accessibility ADA Routing, Private Restrooms & Coach Staging
Full ADA elevator & Butler Trail ramp access; stage motorcoaches on Cesar Chavez / Brazos commercial curb zones (strictly off Congress Ave Bridge at sunset!).
18
Attendee Policy 21+ Casino Floor Rules & Under-21 Access
All Ages Permitted (Direct Non-Gaming Entry). All ages welcome across Onyx Ballroom summits, lakeside wedding receptions, and milestone celebrations.
19
Hotel Adjacency Parent Resort Integration & Room-Block Strategy
Located inside The LINE Austin. Attendees stay under one roof with zero outdoor transit; eligible for SnapEvents wholesale zero-attrition LiteAPI room blocks.
20
Verification Direct Venue Settlement & Audit Provenance
Contracts and deposits settle directly with The LINE Austin (zero layered DMC markup). Verified 2026-10-31 via Verified Lady Bird Lake Ballroom & Waterfront Terrace Dossier (Audit score 96/100).

Parent Hotel & Estate Integration

Inside The LINE Austin

Originally built in 1965 as a mid-century jazz club on the banks of Town Lake, The LINE Austin occupies the single best waterfront corner in Downtown Austin—delivering 428 minimalist-warm rooms, Top Chef winner Kristen Kish's Arlo Grey, P6's sunset rooftop, and the Onyx Ballroom right on the Congress Avenue Bridge & Butler Hike-and-Bike Trail just 90 seconds on foot from JW Marriott.

Property Outside-AV Policy: Pragmatic boutique-lifestyle policy under Texas Right-to-Work (Texas Labor Code Ch. 101): P6 Rooftop and lakeside terraces welcome independent Austin DJs, acoustic acts, and branding displays at $0 outside-AV fee, while the 5,280 sq. ft. Onyx Ballroom allows outside Austin production warehouses with a $3M–$5M COI and modest ~$550 house patch/liaison fee (routinely waived on 60+ peak-night room blocks). $39/nt amenity fee.

Zero-Attrition Wholesale Room-Block Math · On-Site CheckoutRainey / Lady Bird Lake

The LINE Austin — True Out-the-Door Rate Check

Card · Apple Pay · Google Pay · Full Vegas Resort-Fee Disclosure
Hosting 10–100+ Guests? Skip the 80% Hotel Attrition Liability Contract. Generate a branded 1-Click Shareable Guest Room-Block Link in 30 seconds where wedding, gala, or summit guests self-book wholesale rooms on-site.
LiteAPI Wholesale Group Inventory · Transparent Clark County Out-the-Door Math8 Rooms × 3 Nights = 24 Total Room-Nights
Austin, TX Spatial Corridor & Venue Buyout Map
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Austin Corridor Egress & Arrival Timing

Rainey Street, Waller Creek & Lady Bird Lake Waterfront

Sits directly at Congress Ave & E Cesar Chavez on the Ann and Roy Butler Hike-and-Bike Trail—90 seconds on foot from JW Marriott Austin.

Peak SXSW / F1 Egress Note: Congress Avenue Bridge draws thousands of sunset bat-watching pedestrians nightly March–October (20 minutes around civil twilight), freezing northbound/southbound bridge rideshares for 25+ minutes. Walk guests across the Butler Trail or hold post-dinner cars on San Jacinto and Nueces.
Explore all venues in Rainey / Lady Bird Lake

Tailored Texas Out-the-Door Event Budget

Scope The LINE Austin — Onyx Ballroom & Lady Bird Lake Infinity Terrace with production & guest rooms

Open Full-Screen Austin Calculator
90-Second Out-the-Door Event Math Zero Email Gate

SnapQuote™ Austin, TX Event & Buyout Configurator

Exposes Texas 24% Admin + 8.25% Tax
Direct venue & vendor settlement · No DMC markup

Single-Venue Out-the-Door Math (Standard Weekday Minimum): $23,000 base + 25% admin ($5,750) + 8.25% tax ($2,372)

Venue-Only OTD
$31,122
Venue / Guest
$135/pax
Regional Deal Desk & Tax JurisdictionAustin, Texas Office (8.25% TX · 0% LET · 17% HOT)
01

Event Archetype

25 – 500+ pax
03Duration (Days)
05Finish & Resort Tier
0% Municipal Live Entertainment Tax
TX 8.25% sales / Ch. 183 bar rule · No 9% LET
0% LET
06

Modular Vendor & Hotel Block Stack

3-Bid Local Pricing · No Hotel Exclusivity Markup
True Out-the-Door Range230 Guests · 1 Day
Low
$45,315
Mid Benchmark
$52,785
High
$62,046
Per-Guest Out-the-Door
$230 / guest
Est. Savings vs. Captive AV & Blocks
Save $5,774
Tier 1: $0 Free Deal Desk Sourcing

Zero planner fee — compensated via standard commissionable venue & vendor partner agreements.

Line-Item Out-the-Door LedgerTexas “++” Stack
Scope & Statutory NoteLowMidHigh
Private Venue Buyout & F&B Minimum (230 pax)
Standard non-compression corridor minimum spend benchmark.
$28,681$33,350$39,353
Mandatory Venue Admin/Service (24%) + 8.25% Tax
Exposes the real "++" stack: 24% admin/service fee ($8,004) is subject to 8.25% Texas sales tax ($3,412).
$9,818$11,416$13,471
Independent Local AV, Audio & Stage Rig (1 day)
Saves ~$5,774 vs. captive in-house hotel AV (~$13,793 with 25% AV service fee).
$6,816$8,019$9,222
Total Out-the-Door All-In$45,315$52,785$62,046

Synchronized 3-Venue Hold Strategy

Nearby buyout options in Rainey / Lady Bird Lake

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Four Seasons Austin — Heritage Live-Oak Lady Bird Lake Lawn & Ciclo Terrace at Four Seasons Hotel Austin
★ 4.5 (242)
Four Seasons Hotel Austin Estate & Garden

3m walk · Austin Marriott Downtown (2-Min Walk) & JW Marriott (3-Min Walk)

Four Seasons Austin — Heritage Live-Oak Lady Bird Lake Lawn & Ciclo Terrace

Two acres of century-old Texas live oaks sloping directly to the Lady Bird Lake waterfront—steps from Congress Ave with instant Four Seasons ballroom backup.

Seated 320 · Reception 550 · 18,500 sf Hybrid AV policy
Out-the-door · 220 guests
$47,056 ~$214/guest all-in