Homes for Sale/Galveston County/Galveston/Sea Isle Ext 21
Active MLS #62750371 · 259 days on market

21417 Gulf Drive

Galveston, TX 77554
Subdivision  ·  Sea Isle Ext 21
List Price
$615,000
$375/SF
Beds
3
Baths
3
Sq Ft
1,639
Built
1987
Lot
0.18 ac
Garage
1-car
County
Galveston
Tax Rate
2.25%

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

Just steps from the Gulf, this coastal beach house offers incredible Gulf and Bay views, along with the relaxed lifestyle Sea Isle is known for. Vaulted cedar ceilings and floors add warmth and character, while walls of windows with storm shutters capture coastal waves, sunsets, and breezes. The open living area is bright and inviting—perfect for entertaining after a day at the beach. The home features three bedrooms and two baths, with two bedrooms on the main level and a private primary suite upstairs with access to its own deck. Multiple decks provide exceptional outdoor living and entertaining space. Recent updates include a new roof, new exterior paint, and updated decks, offering peace of mind and fresh coastal appeal. Sea Isle amenities include beach access, marina, private fishing pier, park, boat launch, bait camp, West End Marina, and pickleball/tennis courts. Ideal as a weekend retreat, vacation rental, or full-time coastal home—this is island living at its best.

Features

§ 02

Interior

  • Breakfast Bar
  • Full Bath On Main Level
  • Granite Counters
  • High Ceilings
  • Pantry
  • Two Bedrooms Down
  • Upper Level Primary
  • Vaulted Ceilings
  • Window Treatments
  • Ceiling Fans
  • Kitchen Dining Combo
  • Dishwasher
  • Free Standing Range
  • Disposal
  • Microwave
  • Oven
  • Dryer
  • Refrigerator

Exterior & lot

  • Balcony
  • Fence
  • Storm Security Shutters
  • Tennis Courts
  • Cleared
  • Subdivision
  • Views
  • Waterfront
  • Pond On Lot
  • Partial
  • Roof: Composition
  • Attached
  • Garage
  • Association

Community

  • Beach Rights
  • Basketball Court
  • Boat Dock
  • Beach Access
  • Boat Ramp
  • Sport Court
  • Lake Or Pond
  • Picnic Area
  • Playground
  • Pickleball
  • Park
  • Pool
  • Tennis Courts
  • Smoke Detectors
  • Bay
  • Beach
  • Gulf
  • Water

Property Details

§ 03 · Full MLS record

Property

Property Type Residential
Property Sub Type Detached
Architectural Style Contemporary Modern
Year Built 1987
Year Built Source PublicRecords
New Construction No

Building

Levels OneAndOneHalf
Living Area 1,639 sq ft
Living Area Source Appraiser
Building Area Total 1,639 sq ft
Construction Wood Siding
Roof Composition

Rooms & Baths

Bedrooms 3
Bedrooms Possible 3
Bathrooms (total) 3
Bathrooms Full 2
Bathrooms Half 1
Rooms Total 7

Interior

Interior Features Breakfast Bar, Full Bath On Main Level, Granite Counters, High Ceilings, Pantry, Two Bedrooms Down, Upper Level Primary, Vaulted Ceilings, Window Treatments, Ceiling Fans, Kitchen Dining Combo
Flooring Plank, Tile, Vinyl, Wood
Appliances Dishwasher, Free Standing Range, Disposal, Microwave, Oven, Dryer, Refrigerator, Washer
Laundry Washer Hookup, Electric Dryer Hookup
Windows Window Coverings
Security Smoke Detectors

Exterior

Exterior Features Balcony, Fence, Storm Security Shutters, Tennis Courts
Patio / Porch Balcony
Fencing Partial
Pool Private No
Pool Features Association
Waterfront Yes
Waterfront Features Beach Front, Waterfront
View Yes
View Type Bay, Beach, Gulf, Water

Parking & Garage

Garage Spaces 1
Attached Garage Yes
Parking Features Attached, Garage

Lot

Lot Size (acres) 0.1791
Lot Size Source Appraiser
Lot Features Cleared, Subdivision, Views, Waterfront, Pond On Lot
Direction Faces South

Location

County Galveston
MLS Area Major 33
MLS Area Minor West End
Subdivision Sea Isle Ext 21
Road Surface Asphalt,Shell
Postal Code 77554

Utilities

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

HOA / Association

HOA Yes
HOA Fee $308
HOA Fee Frequency Annually
HOA Name Sea Isle POA
Fee Includes Common Areas, Recreation Facilities
Amenities Beach Rights, Basketball Court, Boat Dock, Beach Access, Boat Ramp, Sport Court, Lake Or Pond, Picnic Area, Playground, Pickleball, Park, Pool, Tennis Courts

Taxes, Terms & Disclosures

Tax Annual Amount $13,853
Tax Year 2025
Tax Rate (est.) 2.25%
Parcel # 6392-0000-0011-000
Legal Description ABST 121 PAGE 19 LOT 11 SEA ISLE SEC 21
Listing Terms Cash, Conventional
Lease Considered No

Room Layout

§ 04 · 7 rooms · MLS-supplied

Main level · 6

Bedroom 15x16
Bedroom 13x15
Dining Room 7X9
Living Room 15x19
Breakfast Room Nook 9x8
Kitchen 12x12

Second level · 1

Primary Bedroom 11x13

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
$4,847
30-YR FIXED · ADJUST ASSUMPTIONS BELOW
%
%
Principal & interest$3,693 Property tax$1,154 Homeowners insuranceTBD
Subtotal (P&I + Tax) $4,847
Yearly HOA fee $308

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
$308
ANNUALLY
Association nameSea Isle POA Management co. Website Phone Cert on filepending
Fee includes
CommonAreas · RecreationFacilities
● Community amenities
bank
ATM · 0.9mi
ATM · 3.9mi
Circle K ATM · 4.6mi
gym
Seek Peace Yoga Galveston · 1.6mi
Gymaica Fitness · 4.6mi
park
· 2.0mi
· 2.1mi
· 3.1mi
grocery
Seven Seas Market · 3.8mi
Valero · 4.6mi
Circle K · 4.6mi
police_station
Jamaica Beach Police · 4.7mi
place_of_worship
Mary, Star of the Sea Church · 4.7mi
West Isle Presbyterian Church · 7.6mi
West Isle Church · 7.6mi

Broadband & Connectivity

§ 06 · Rolled up from MLS
● Max advertised speed at this address
5,000 Mbps
Fiber available · cable ok
Top fiber: AT&T
Fiber / DSL
AT&T
Speeds per provider
Cable
Xfinity
Speeds per provider
Fixed Wireless
T-Mobile
Speeds per provider
Fixed Wireless
Verizon
Speeds per provider
Satellite
HughesNet
Speeds per provider
Satellite
Starlink
Speeds per provider
Satellite
Viasat Inc
Speeds per provider

Environmental Risk

§ 08
V
FEMA Zone
Zone VE · Coastal High Hazard
Coastal wave-action hazard zone. Flood insurance required.
PANEL 48167C BASE FLOOD ELEV. 16.0 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 21
TIER: SUBDIVISION
Subdivision name (MLS)Sea Isle Ext 21 City · ZIPGalveston · 77554 CountyGalveston Listings in subdivision29 Active now5 Sold (last 12 mo)1 Curated amenities20
● Year-built distribution
1975s 2 1980s 1 1985s 1 2015s 1

Fire Protection

§ 11
Nearest station
Galveston Fire Department Station 8
Distance
0.4 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
21417 Gulf Drive, Galveston, TX 77554
Galveston County · 29.14°N, 95.04°W
bank
ATM
0.9 mi · 1 within 2 mi
gym
Seek Peace Yoga Galveston
1.6 mi · 1 within 2 mi
park
2.0 mi · 1 within 2 mi
Interactive map coming in v0.2 — currently showing schematic placement.
● Listing History
Jan 8, 2026 Listed $615,000 Amy Larner
Dec 31, 1986 Built
Status change events from HAR MLS (future: full audit trail)
● Disclosures & Attribution
Listed by Amy Larner · RE/MAX Leading Edge
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 Sep 13, 2026.
MLS# 62750371 · LIST DATE: Jan 8, 2026 · PARCEL: 6392-0000-0011-000
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, 8:10 AM CDT. Properties may subsequently be sold or off-market. Equal Housing Opportunity