Home/Site Plans/GROTTO RESIDENCE BOATHOUSE

✅ Approved and ReleasedDistrict 10

GROTTO RESIDENCE BOATHOUSE

Site plan fully approved and released. All conditions cleared. Ready for construction permitting.

📍 4303 ISLAND AVE, AUSTIN, TX, 78731📄 Site Plan🏛️ AUSTIN FULL PURPOSE

Entitled100%

Timeline

Applied: Oct 21, 1998

Updated: Mar 2, 2007

✅

Approved and Released

Step 5 of 5: Released ✓

Site plan fully approved and released. All conditions cleared. Ready for construction permitting.

Next:Pull building permits to begin construction.

📅Entitlement Timeline

Application Filed

+30d

October 21, 1998

In Review

+3024d

November 20, 1998

Approved

March 2, 2007

📍Location & Views

Open in Maps Get Directions|30.32982, -97.77678

💰Property Tax Assessment

View on TCAD

$6.84M

Market Value

$6.84M

Appraised Value

$5.63M

Assessed Value

Land: $4.61M (67%)Improvements: $2.23M (33%)

📍

Property Address (TCAD)

4303 ISLAND AVE 78731

👤

Property Owner (TCAD)

SPEAR DON & IONE REVOCABLE TRUST

Year Built:1998

Acres:1.05

Tax Year:2026

Type:SINGLE FAMILY RESIDENCE

🤝 Project Team

🏠 Owner Contact

Chris Thompson

📐 Nearby Site Plans

JAMES CASEY STREET EXTENSION PHASE ONE

Approved and Released • AUSTIN • Mar 2, 2007

BOAT DOCK & BULKHEAD

Approved and Released • AUSTIN • Dec 29, 2020

BOAT DOCK & BULKHEAD

Approved and Released • AUSTIN • Mar 2, 2007

2908 Scenic Drive - Tram

Approved and Released • AUSTIN • Dec 15, 2014

3707 Taylors Drive

Approved and Released • AUSTIN • Sep 22, 2023

2900 Westlake Cove

Approved and Released • AUSTIN • Dec 9, 2010

Warren Substation: Grading and Drainage Improvements

Approved and Released • AUSTIN • Jan 20, 2016

Warren Substation: Grading and Drainage Improvements

Expired • AUSTIN • Dec 28, 2014

Middleton Residence

Approved and Released • AUSTIN • Jan 21, 2022

Taylors Drive

Approved and Released • AUSTIN • Jun 26, 2015

Taylor Slough Dredge Maintenance

Approved and Released • AUSTIN • Jun 10, 2025

Woodbridge Drive Wastewater Improvements

Approved and Released • AUSTIN • Jul 13, 2010

Quick Links

City of Austin ABC Portal View Location (Satellite)Property Tax Records

Case #155931

Zoning & Land Use

Proposed Use

999

Case Manager

👤

Don Perryman

City of Austin Development Services

Location Intelligence

Businesses near the planned site

Balcones Park806 ft (246m) elevation

Ridge Oak Reservoir Park

0.1 mi

Park

4.1(18)

Business data from Google

Explore Area

🏛️

Council District 10

From site plan record

📌 Case Details

Case Number155931

Case TypeSite Plan

Sub Type—

Permit NumberSP-98-0393DS

JurisdictionAUSTIN FULL PURPOSE

TCAD ID0129070432

Property RSN52480

Legal Description

LOT 2 BLK A ISLAND AT MT BONNELL SHORES THE

→ All Austin Site Plans → All TDLR Projects → Company Directory

Explore All Site Plans