Homes for Sale/Galveston County/Galveston/Sea Isle Ext 4
Active MLS #30820204 · 41 days on market

21818 Matagorda Drive

Galveston, TX 77554
Subdivision  ·  Sea Isle Ext 4
List Price
$720,000
$465/SF
Beds
3
Baths
2
Sq Ft
1,548
Built
1985
Lot
0.14 ac
Garage
0-car
County
Galveston
Tax Rate
1.69%

Schools

§ 03
District
Elementary GISD OPEN ENROLL N/R
Middle GISD OPEN ENROLL N/R
High BALL H S CCMR 75% · Grad 96% C
TEA accountability ratings reflect 2024–25 where available. School attendance zones are subject to district redistricting — confirm directly with the district before making a school-based decision.

Overview

§ 01

Charming Canal-Front Home in Sea Isle! Located in one of Galveston's most sought-after communities, this turnkey coastal retreat offers an inviting open floor plan with soaring shiplap ceilings, creating a spacious setting perfect for entertaining. The home is being sold fully furnished, with appliances, linens & more—everything you need to start enjoying the coastal lifestyle from day one! Step outside to relax and unwind, rinse off after a day on the water in the outdoor shower, then gather around the large outdoor bar and swings while watching the sunset. Additional amenities include a boathouse with boat lift, making this property an ideal getaway for boating and coastal living. Numerous updates include new AC & ductwork, deck railing and stairs, hardi siding & exterior paint, storm-rated windows, water heater, flooring throughout, interior doors, baseboards, updated bathrooms, and much more.Come see all this exceptional Sea Isle property has to offer!

Features

§ 02

Interior

  • Bedroom On Main Level
  • High Ceilings
  • Vaulted Ceilings
  • Ceiling Fans
  • Dishwasher
  • Electric Oven
  • Electric Range
  • Free Standing Range
  • Disposal
  • Oven
  • Dryer
  • Washer
  • Plank
  • Tile
  • Vinyl
  • Heat: Central
  • Heat: Electric
  • Cool: Central Air

Exterior & lot

  • Covered Patio
  • Deck
  • Outdoor Kitchen
  • Paved Driveway
  • Patio
  • Subdivision
  • Waterfront
  • Covered
  • Roof: Composition
  • Association

Community

  • Beach Rights
  • Beach Access
  • Boat Ramp
  • Playground
  • Park
  • Pool
  • Tennis Courts
  • Smoke Detectors
  • Style: Traditional

Property Details

§ 03 · Full MLS record

Property

Property Type Residential
Property Sub Type Detached
Architectural Style Traditional
Year Built 1985
Year Built Source PublicRecords
New Construction No

Building

Stories 1
Levels One
Living Area 1,548 sq ft
Living Area Source Appraiser
Building Area Total 1,548 sq ft
Construction Cement Siding
Roof Composition

Rooms & Baths

Bedrooms 3
Bathrooms (total) 2
Bathrooms Full 2
Bathrooms Half 0
Rooms Total 6

Interior

Interior Features Bedroom On Main Level, High Ceilings, Vaulted Ceilings, Ceiling Fans
Flooring Plank, Tile, Vinyl
Appliances Dishwasher, Electric Oven, Electric Range, Free Standing Range, Disposal, Oven, Dryer, Washer
Laundry Washer Hookup, Electric Dryer Hookup
Windows Storm Windows
Security Smoke Detectors
Indoor Air Quality Ventilation

Exterior

Exterior Features Covered Patio, Deck, Outdoor Kitchen, Paved Driveway, Patio
Patio / Porch Covered, Deck, Patio
Pool Private No
Pool Features Association
Waterfront Yes
Waterfront Features Bulkhead, Boat Ramp Lift Access, Canal Front, Waterfront

Parking & Garage

Garage Spaces 0

Lot

Lot Size (acres) 0.1449
Lot Size Source Appraiser
Lot Features Subdivision, Waterfront

Location

County Galveston
MLS Area Major 33
MLS Area Minor West End
Subdivision Sea Isle Ext 4
Postal Code 77554

Utilities

Heating Central, Electric
Cooling Central Air, Electric
Water Source Public
Sewer Public Sewer

HOA / Association

HOA Yes
HOA Fee $250
HOA Fee Frequency Annually
HOA Name SEA ISLE POA
Amenities Beach Rights, Beach Access, Boat Ramp, Playground, Park, Pool, Tennis Courts

Taxes, Terms & Disclosures

Tax Annual Amount $12,141
Tax Year 2025
Tax Rate (est.) 1.69%
Parcel # 6380-0000-1612-000
Legal Description ABST 121 PAGE 15 LOT 1612 SEA ISLE 4TH EXTENSION
Listing Terms Cash, Conventional
Lease Considered No
Disclosures Other, Seller Disclosure

Room Layout

§ 04 · 6 rooms · MLS-supplied

Main level · 6

Living Room 24x20
Kitchen 14x10
Breakfast Room Nook 11x10
Primary Bedroom 12x10
Bedroom 12x9
Bedroom 15x9

MUD Disclosure (§49.452)

§ 03 · Data moat
● §49.452 Notice
Not in archive
This MUD is not yet in our §49.452 archive. We'll add it on request.

Texas Water Code §49.452 requires districts to publish annual notices with tax rate, bonded indebtedness, and assessed value. Most Harris-area MUDs publish these; a handful managed by Inframark do not.

Request this notice
● What this tells you

The §49.452 notice is the only public document that lists a MUD's exact tax rate, outstanding bond debt, and the assessed value used to compute your taxes — direct from the district, not the MLS. If the district is newer or has more bonds outstanding than its neighbors, your effective tax rate will be higher here than just across the street.

Listing's rolled-up MUD rate Resolved MUD jurisdiction not mapped Match confidence

Taxes & Cost of Ownership

§ 04
● Estimated monthly payment
$5,335
30-YR FIXED · ADJUST ASSUMPTIONS BELOW
%
%
Principal & interest$4,323 Property tax$1,012 Homeowners insuranceTBD
Subtotal (P&I + Tax) $5,335
Yearly HOA fee $250

Illustrative only, not a quote. P&I assumes the values entered above. Insurance and HOA dues vary — consult licensed lender and insurance agent for accurate quote.

● Effective tax rate · 3-year history
1.6952%
ALL 5 TAXING DISTRICTS · 2025 BILL
202320242025
MUD
→ stable
School
0.84%
→ stable
City
→ stable
County
0.32%
→ stable
Other districts
0.53%
→ stable

HOA & Community

§ 05
● HOA details
$250
ANNUALLY
Association nameSEA ISLE POA Management co. Website Phone Cert on filepending
● Community amenities
bank
ATM · 0.5mi
ATM · 4.5mi
Circle K ATM · 5.2mi
gym
Seek Peace Yoga Galveston · 1.1mi
Gymaica Fitness · 5.2mi
park
· 2.6mi
· 2.7mi
· 3.7mi
grocery
Seven Seas Market · 4.5mi
Valero · 5.2mi
Circle K · 5.2mi
police_station
Jamaica Beach Police · 5.3mi
place_of_worship
Mary, Star of the Sea Church · 5.3mi
West Isle Presbyterian Church · 8.2mi
West Isle Church · 8.2mi

Broadband & Connectivity

§ 06
Broadband not mappedWe have not yet resolved FCC provider data for this block.

Environmental Risk

§ 08
A
FEMA Zone
Zone AE · Special Flood Hazard Area
1% annual chance of flooding (100-year floodplain). Flood insurance typically required.
PANEL 48167C BASE FLOOD ELEV. 12.0 FT SFHA YES SOURCE 48167C_STUDY1
🌡 Heat days >95°F
6 days/yr above 95°F
Plus 0 days above 100°F. NOAA station records, 2016-2025 average.
💨 30-day air quality
AQI 44 · Good
Average daily AQI for the 30 days ending 2026-02-28. EPA AQS county monitors. Higher = worse.
🌵 Drought (current)
D1 · Moderate
US Drought Monitor county reading, week of 2026-09-15.
Sources: FEMA NFHL · NOAA GHCN-Daily · EPA AQS · US Drought Monitor. Climate rollup last computed Sep 23, 2026.

Recent Comparable Sales

§ 09
1 comparable sale nearbyAddress-level sold detail is available to registered users. Reach out to Allen for the full comparable-sales report.

Subdivision & Master Plan

§ 10
● Master plan
Sea Isle Ext 4
TIER: SUBDIVISION
Subdivision name (MLS)Sea Isle Ext 4 City · ZIPGalveston · 77554 CountyGalveston Listings in subdivision121 Active now5 Sold (last 12 mo)5 Curated amenities20
● Year-built distribution
1980s 2 1985s 1 2015s 1 2020s 1

Fire Protection

§ 11
Nearest station
Galveston Fire Department Station 8
Distance
0.3 mi
Straight-line from listing
ISO rating
Future data point
Avg. response
From incident log (future)

Neighborhood Demographics

§ 12 · Census tract 48167726102 · ACS 2023
Median HH income
$82,955
ACS 2023
Median home value
$511,700
Census self-report
Owner-occupied
27%
2,829 housing units
Bachelor's+
51%
Adults 25+
Median age
63.1
Population 1,431
Work from home
4%
of commuters
Commute 45min+
14%
of commuters
Below poverty
3.0%
tract-level

Amenities & Nearby Places

§ 13

Active listing — amenities should populate from the go-live pipeline. Click to fetch now if missing.

Location & Neighborhood

§ 13
● This Home
21818 Matagorda Drive, Galveston, TX 77554
Galveston County · 29.14°N, 95.05°W
bank
ATM
0.5 mi · 1 within 2 mi
gym
Seek Peace Yoga Galveston
1.1 mi · 1 within 2 mi
Interactive map coming in v0.2 — currently showing schematic placement.
● Listing History
Aug 14, 2026 Listed $720,000 Traye Wise
Dec 31, 1984 Built
Status change events from HAR MLS (future: full audit trail)
● Disclosures & Attribution
Listed by Traye Wise · RE/MAX Signature
Data provided by Houston Realtors Information Service (HAR MLS). Information deemed reliable but not guaranteed. All measurements, square footage, and school assignments should be independently verified. HAR MLS content last updated Aug 24, 2026.
MLS# 30820204 · LIST DATE: Aug 14, 2026 · PARCEL: 6380-0000-1612-000
R
EHO
REALTOR® · Equal Housing Opportunity
HAR.com Copyright © 2026, Houston Realtors Information Service, Inc. Deemed reliable, not guaranteed — independently verify. HARMLS last updated Sep 24, 2026, 10:32 AM CDT. Properties may subsequently be sold or off-market. Equal Housing Opportunity