Homes for Sale/Galveston County/Galveston/Sea Isle Orig
Active MLS #74656361 · 628 days on market

21623 Zachary

Galveston, TX 77554
Subdivision  ·  Sea Isle Orig
List Price
$475,000
$471/SF · 47.2% above neighborhood median
Beds
4
Baths
3
Sq Ft
1,008
Built
1975
Lot
0.14 ac
Garage
0-car
County
Galveston
Tax Rate
1.23%

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

Nestled in the heart of Sea Isle, you don't want to miss this newly remodeled 4 bedroom, 2 full - 1 half bath gem, designed with modern and coastal charm. Two bedrooms on each level. An open concept dining and living area creates an inviting atmosphere on the main level. The fully equipped kitchen features exquisite subway tile, modern cabinetry and stainless steel appliances. One of the highlights of this beach house is the lower-level bonus room. This spacious area is ideal for entertaining with easy access to the outdoor patio. Retreat to the upper-level deck, your private oasis to soak in breathtaking ocean views and unforgettable sunsets. Don't miss your chance to own a piece of paradise in Sea Isle. Short golf cart ride to the beach. Sea Isle amenities include a fishing pier, boat launch, marina store, restaurant, bar, community pool, park and pickleball/tennis court.

Features

§ 02

Interior

  • Double Vanity
  • Kitchen Island
  • Kitchen Family Room Combo
  • Self Closing Cabinet Doors
  • Self Closing Drawers
  • Tub Shower
  • Ceiling Fans
  • Kitchen Dining Combo
  • Living Dining Room
  • Dishwasher
  • Electric Cooktop
  • Electric Oven
  • Microwave
  • Dryer
  • Refrigerator
  • Washer
  • Plank
  • Vinyl

Exterior & lot

  • Deck
  • Patio
  • Private Yard
  • Tennis Courts
  • Subdivision
  • Views
  • Roof: Composition

Community

  • Beach
  • Water
  • Style: Other
  • Style: Traditional

Property Details

§ 03 · Full MLS record

Property

Property Type Residential
Property Sub Type Detached
Architectural Style Other, Traditional
Year Built 1975
Year Built Source PublicRecords
New Construction No

Building

Stories 1
Levels One
Living Area 1,008 sq ft
Living Area Source Appraiser
Building Area Total 1,008 sq ft
Construction Vinyl Siding
Roof Composition

Rooms & Baths

Bedrooms 4
Bedrooms Possible 4
Bathrooms (total) 3
Bathrooms Full 2
Bathrooms Half 1
Rooms Total 4

Interior

Interior Features Double Vanity, Kitchen Island, Kitchen Family Room Combo, Self Closing Cabinet Doors, Self Closing Drawers, Tub Shower, Ceiling Fans, Kitchen Dining Combo, Living Dining Room
Flooring Plank, Vinyl
Appliances Dishwasher, Electric Cooktop, Electric Oven, Microwave, Dryer, Refrigerator, Washer
Laundry Washer Hookup, Electric Dryer Hookup

Exterior

Exterior Features Deck, Patio, Private Yard, Tennis Courts
Patio / Porch Deck, Patio
Pool Private No
View Yes
View Type Beach, Water

Parking & Garage

Garage Spaces 0

Lot

Lot Size (acres) 0.1377
Lot Size Source Appraiser
Lot Features Subdivision, Views

Location

County Galveston
MLS Area Major 33
MLS Area Minor West End
Subdivision Sea Isle Orig
Road Surface Asphalt
Postal Code 77554

Utilities

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

HOA / Association

HOA Yes
HOA Fee $225
HOA Fee Frequency Annually
HOA Name Sea Isle POA
Fee Includes Recreation Facilities

Taxes, Terms & Disclosures

Tax Annual Amount $5,856
Tax Year 2023
Tax Rate (est.) 1.23%
Parcel # 6375-0000-0140-000
Legal Description ABST 121 PAGE 19 LOT 140 SEA ISLE
Listing Terms Cash, Conventional
Lease Considered No
Disclosures Seller Disclosure

Room Layout

§ 04 · 4 rooms · MLS-supplied

Main level · 2

Bedroom 12 X 14
Bedroom 11 X 9

Second level · 2

Primary Bedroom 11 X 11
Bedroom 11 x 11

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
$3,340
30-YR FIXED · ADJUST ASSUMPTIONS BELOW
%
%
Principal & interest$2,852 Property tax$488 Homeowners insuranceTBD
Subtotal (P&I + Tax) $3,340
Yearly HOA fee $225

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
$225
ANNUALLY
Association nameSea Isle POA Management co. Website Phone Cert on filepending
Fee includes
RecreationFacilities
● Community amenities
bank
ATM · 0.6mi
ATM · 4.2mi
Circle K ATM · 4.9mi
gym
Seek Peace Yoga Galveston · 1.3mi
Gymaica Fitness · 4.9mi
park
· 2.3mi
· 2.4mi
· 3.4mi
grocery
Seven Seas Market · 4.1mi
Valero · 4.9mi
Circle K · 4.9mi
police_station
Jamaica Beach Police · 5.0mi
place_of_worship
Mary, Star of the Sea Church · 5.0mi
West Isle Presbyterian Church · 7.9mi
West Isle Church · 7.9mi

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
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. 15.0 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
6 comparable sales nearby · sold median $320/SFAddress-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 Orig
TIER: SUBDIVISION
Subdivision name (MLS)Sea Isle Orig City · ZIPGalveston · 77554 CountyGalveston Listings in subdivision275 Active now26 Sold (last 12 mo)15 Curated amenities20
● Year-built distribution
1955s 2 1960s 2 1970s 2 1975s 3 1980s 3 1985s 3 1990s 2 1995s 1 2000s 2 2005s 1 2015s 2 2020s 1

Fire Protection

§ 11
Nearest station
Galveston Fire Department Station 8
Distance
0.2 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
21623 Zachary, Galveston, TX 77554
Galveston County · 29.14°N, 95.04°W
bank
ATM
0.6 mi · 1 within 2 mi
gym
Seek Peace Yoga Galveston
1.3 mi · 1 within 2 mi
Interactive map coming in v0.2 — currently showing schematic placement.
● Listing History
Jan 3, 2025 Listed $475,000 Joel Johnson
Dec 31, 1974 Built
Status change events from HAR MLS (future: full audit trail)
● Disclosures & Attribution
Listed by Joel Johnson · Galveston Island Real Estate
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 Mar 2, 2026.
MLS# 74656361 · LIST DATE: Jan 3, 2025 · PARCEL: 6375-0000-0140-000
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 23, 2026, 11:00 PM CDT. Properties may subsequently be sold or off-market. Equal Housing Opportunity