Homes for Sale/Galveston County/Galveston/Sea Isle Ext 11
Active MLS #76393620 · 2 days on market

21812 Frio Drive

Galveston, TX 77554
Subdivision  ·  Sea Isle Ext 11
List Price
$715,000
$380/SF
Beds
4
Baths
4
Sq Ft
1,881
Built
1986
Lot
6,191 sf
Garage
1-car
County
Galveston
Tax Rate
1.65%

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

This beautiful 4-bedroom, 3.5-bath home showcases floor-to-ceiling windows, skylights, and a cozy fireplace, filling the space with natural light. Upon entry, you step down into a sun-drenched family room that sets the tone for the home’s open and inviting layout. The open-concept kitchen and dining area overlook an expansive deck, perfect for indoor-outdoor living. The main level offers two bedrooms, along with a full bath. The primary suite is located on the second floor and features two walk-in closets and a private balcony. The fourth bedroom offers private access and its own en-suite, making it perfect for guests. Designed for entertaining, the lower level is a true retreat—relax at your tiki bar, fish from your private dock, or launch your boat and head straight out to the bay. Community amenities include a pool, fishing pier, tennis and pickleball courts, a boat launch, and an on-site restaurant. The beach is just a short golf cart ride away. Island life is calling!

Features

§ 02

Interior

  • All Bedrooms Down
  • Wet Bar
  • Breakfast Bar
  • Balcony
  • Crown Molding
  • Full Bath On Main Level
  • Granite Counters
  • High Ceilings
  • Bath In Primary Bedroom
  • Pots And Pan Drawers
  • Pantry
  • Self Closing Cabinet Doors
  • Self Closing Drawers
  • Tub Shower
  • Upper Level Primary
  • Walk In Pantry
  • Walk In Closets
  • Ceiling Fans

Exterior & lot

  • Balcony
  • Covered Patio
  • Deck
  • Fence
  • Paved Driveway
  • Patio
  • Private Yard
  • Storage
  • Tennis Courts
  • Views
  • Waterfront
  • Partial
  • Covered
  • Roof: Composition
  • Additional Parking
  • Attached
  • Driveway
  • Garage

Community

  • Beach Rights
  • Basketball Court
  • Boat Dock
  • Beach Access
  • Marina
  • Boat Ramp
  • Sport Court
  • Picnic Area
  • Playground
  • Pickleball
  • Park
  • Tennis Courts
  • Canal
  • Water
  • Style: Traditional

Property Details

§ 03 · Full MLS record

Property

Property Type Residential
Property Sub Type Detached
Architectural Style Traditional
Year Built 1986
Year Built Source PublicRecords
New Construction No

Building

Stories 2
Levels Two
Living Area 1,881 sq ft
Living Area Source Appraiser
Building Area Total 1,881 sq ft
Construction Vinyl Siding, Wood Siding
Roof Composition

Rooms & Baths

Bedrooms 4
Bathrooms (total) 4
Bathrooms Full 3
Bathrooms Half 1
Rooms Total 7
Fireplaces 1
Fireplace Features Wood Burning

Interior

Interior Features All Bedrooms Down, Wet Bar, Breakfast Bar, Balcony, Crown Molding, Full Bath On Main Level, Granite Counters, High Ceilings, Bath In Primary Bedroom, Pots And Pan Drawers, Pantry, Self Closing Cabinet Doors, Self Closing Drawers, Tub Shower, Upper Level Primary, Walk In Pantry, Walk In Closets, Ceiling Fans, Kitchen Dining Combo
Flooring Carpet, Plank, Tile, Vinyl
Appliances Dishwasher, Free Standing Range, Disposal, Microwave, Oven, Dryer, Refrigerator, Washer
Laundry Washer Hookup, Electric Dryer Hookup
Indoor Air Quality Ventilation

Exterior

Exterior Features Balcony, Covered Patio, Deck, Fence, Paved Driveway, Patio, Private Yard, Storage, Tennis Courts
Patio / Porch Balcony, Covered, Deck, Patio
Fencing Partial
Pool Private No
Waterfront Yes
Waterfront Features Boat Dock Slip, Bulkhead, Boat Ramp Lift Access, Canal Front, Waterfront
View Yes
View Type Canal, Water

Parking & Garage

Garage Spaces 1
Attached Garage Yes
Parking Features Additional Parking, Attached, Driveway, Garage

Lot

Lot Size (sq ft) 6,191
Lot Size (acres) 0.1421
Lot Size Source Appraiser
Lot Features Views, Waterfront
Direction Faces East

Location

County Galveston
MLS Area Major 33
MLS Area Minor West End
Subdivision Sea Isle Ext 11
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, Marina, Boat Ramp, Sport Court, Picnic Area, Playground, Pickleball, Park, Tennis Courts

Taxes, Terms & Disclosures

Tax Annual Amount $11,808
Tax Year 2025
Tax Rate (est.) 1.65%
Parcel # 6387-0000-1655-000
Legal Description ABST 121 PAGE 15 LOT 1655 SEA ISLE 11TH EXTENSION
Lease Considered Yes
Disclosures Owner Is Listing Agent, Other

Room Layout

§ 04 · 7 rooms · MLS-supplied

Main level · 6

Bedroom 12x11
Bedroom 12x12
Bedroom 11x12
Kitchen 14x12
Dining Room 16x12
Living Room 25x17

Second level · 1

Primary Bedroom 15x15

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
$5,277
30-YR FIXED · ADJUST ASSUMPTIONS BELOW
%
%
Principal & interest$4,293 Property tax$984 Homeowners insuranceTBD
Subtotal (P&I + Tax) $5,277
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 · 0.7mi
ATM · 4.3mi
Circle K ATM · 5.0mi
gym
Seek Peace Yoga Galveston · 1.2mi
Gymaica Fitness · 5.0mi
park
· 2.5mi
· 2.6mi
· 3.5mi
grocery
Seven Seas Market · 4.3mi
Valero · 5.0mi
Circle K · 5.0mi
police_station
Jamaica Beach Police · 5.1mi
place_of_worship
Mary, Star of the Sea Church · 5.2mi
West Isle Presbyterian Church · 8.1mi
West Isle Church · 8.1mi

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 11
TIER: SUBDIVISION
Subdivision name (MLS)Sea Isle Ext 11 City · ZIPGalveston · 77554 CountyGalveston Listings in subdivision22 Active now4 Sold (last 12 mo)2 Curated amenities20
● Year-built distribution
1975s 1 1985s 2 2000s 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
21812 Frio Drive, Galveston, TX 77554
Galveston County · 29.14°N, 95.05°W
bank
ATM
0.7 mi · 1 within 2 mi
gym
Seek Peace Yoga Galveston
1.2 mi · 1 within 2 mi
Interactive map coming in v0.2 — currently showing schematic placement.
● Listing History
Sep 22, 2026 Listed $715,000 Clayton Richardson
Dec 31, 1985 Built
Status change events from HAR MLS (future: full audit trail)
● Disclosures & Attribution
Listed by Clayton Richardson · eXp Realty LLC
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 23, 2026.
MLS# 76393620 · LIST DATE: Sep 22, 2026 · PARCEL: 6387-0000-1655-000
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, 4:59 AM CDT. Properties may subsequently be sold or off-market. Equal Housing Opportunity