Homes for Sale/Montgomery County/Montgomery/Grand Harbor 01
Active MLS #80611230 · 69 days on market

11836 Seashell Circle

Montgomery, TX 77356
Subdivision  ·  Grand Harbor 01
List Price
$855,000
$261/SF
Beds
3
Baths
4
Sq Ft
3,279
Built
2001
Lot
0.50 ac
Garage
3-car
County
Montgomery
Tax Rate
1.16%

Schools

§ 03
District
Elementary MADELEY RANCH EL B
Middle MONTGOMERY J H C
High MONTGOMERY H S CCMR 85% · Grad 98% B
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

Experience waterfront living in this beautiful traditional home situated on over half an acre in the gated community of Grand Harbor. Located on a deep, wide canal with quick access to Lake Conroe, this spacious home features a private study, an upstairs game room, and a bonus room that can serve as additional flexible living space. The open-concept layout offers soaring ceilings, abundant natural light, hardwood flooring, formal dining, a spacious family room, and a large kitchen with ample cabinetry, a walk-in pantry, and a breakfast area overlooking the water. The first floor includes two primary suites, making it ideal for multi-generational living or guests. Step outside to enjoy the expansive backyard, private pier, boat lift, jet ski lift, bulkhead, and peaceful canal views. A three-car garage, sprinkler system, and Montgomery ISD schools complete this exceptional Lake Conroe property.

Features

§ 02

Interior

  • Breakfast Bar
  • Crown Molding
  • Double Vanity
  • Entrance Foyer
  • High Ceilings
  • Kitchen Family Room Combo
  • Pantry
  • Separate Shower
  • Walk In Pantry
  • Ceiling Fans
  • Programmable Thermostat
  • Dishwasher
  • Electric Oven
  • Electric Range
  • Disposal
  • Microwave
  • Energy Star Qualified Appliances
  • Carpet

Exterior & lot

  • Deck
  • Sprinkler Irrigation
  • Patio
  • Private Yard
  • Corner Lot
  • Views
  • Waterfront
  • Side Yard
  • Roof: Composition
  • Foundation: Slab
  • Attached
  • Garage
  • Golf Cart Garage
  • Garage Door Opener
  • Oversized

Community

  • Controlled Access
  • Smoke Detectors
  • Canal
  • Water
  • Style: French Provincial
  • Style: Traditional

Property Details

§ 03 · Full MLS record

Property

Property Type Residential
Property Sub Type Detached
Architectural Style French Provincial, Traditional
Year Built 2001
Year Built Source PublicRecords
New Construction No

Building

Stories 2
Levels Two
Living Area 3,279 sq ft
Living Area Source Appraiser
Building Area Total 3,279 sq ft
Foundation Slab
Construction Brick
Roof Composition

Rooms & Baths

Bedrooms 3
Bedrooms Possible 4
Bathrooms (total) 4
Bathrooms Full 3
Bathrooms Half 1
Rooms Total 8

Interior

Interior Features Breakfast Bar, Crown Molding, Double Vanity, Entrance Foyer, High Ceilings, Kitchen Family Room Combo, Pantry, Separate Shower, Walk In Pantry, Ceiling Fans, Programmable Thermostat
Flooring Carpet, Tile, Wood
Appliances Dishwasher, Electric Oven, Electric Range, Disposal, Microwave, Energy Star Qualified Appliances
Laundry Washer Hookup, Electric Dryer Hookup, Gas Dryer Hookup
Security Controlled Access, Smoke Detectors

Exterior

Exterior Features Deck, Sprinkler Irrigation, Patio, Private Yard
Patio / Porch Deck, Patio
Pool Private No
Waterfront Yes
Waterfront Features Boat Dock Slip, Bulkhead, Canal Front, Waterfront
View Yes
View Type Canal, Water

Parking & Garage

Garage Spaces 3
Attached Garage Yes
Parking Features Attached, Garage, Golf Cart Garage, Garage Door Opener, Oversized

Lot

Lot Size (acres) 0.5033
Lot Size Source Appraiser
Lot Features Corner Lot, Views, Waterfront, Side Yard
Direction Faces West

Location

County Montgomery
MLS Area Major 39
MLS Area Minor Lake Conroe Area
Subdivision Grand Harbor 01
Road Surface Asphalt,Concrete
Postal Code 77356

Utilities

Heating Central, Gas
Cooling Central Air, Electric
Sewer Aerobic Septic
Energy Efficient Appliances, Thermostat

HOA / Association

HOA Yes
HOA Fee $1,600
HOA Fee Frequency Annually
HOA Name Grand Harbor POA
Fee Includes Common Areas

Taxes, Terms & Disclosures

Tax Annual Amount $9,915
Tax Year 2025
Tax Rate (est.) 1.16%
Parcel # 272644
Legal Description GRAND HARBOR 01, BLOCK 1, LOT 27
Listing Terms Cash, Conventional
Lease Considered No
Disclosures Other

Room Layout

§ 04 · 8 rooms · MLS-supplied

Main level · 6

Primary Bedroom 17 x 13
Family Room 19 x 21
Primary Bedroom 12 x 13
Dining Room 12 x 13
Kitchen 14 x 21
Utility Room 11 x 8

Second level · 2

Bedroom 11 x 13
Game Room 22 x 13

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
$5,960
30-YR FIXED · ADJUST ASSUMPTIONS BELOW
%
%
Principal & interest$5,134 Property tax$826 Homeowners insuranceTBD
Subtotal (P&I + Tax) $5,960
Yearly HOA fee $1,600

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
1.6155%
ALL 4 TAXING DISTRICTS · 2025 BILL
202320242025
MUD
→ stable
School
1.09%
→ stable
City
→ stable
County
0.38%
→ stable
Other districts
0.15%
→ stable

HOA & Community

§ 05
● HOA details
$1,600
ANNUALLY
Association nameGrand Harbor POA Management co. Website Phone Cert on filepending
Fee includes
CommonAreas
● Community amenities
grocery
Chevron Food Mart · 1.4mi
Kroger Marketplace · 2.1mi
Walmart Supercenter · 2.5mi
gas_station
Chevron Food Mart · 1.5mi
Kroger · 2.2mi
gym
Spring Fitness Montgomery · 1.5mi
Phantom Cheer · 2.1mi
Pickleball Hideout LLC · 2.2mi
park
· 1.5mi
· 1.8mi
· 1.7mi
coffee
Starbucks · 2.1mi
Starbucks · 2.3mi
bank
Coinstar Kiosk · 2.1mi
Simmons Bank · 2.2mi
PNC Bank · 2.4mi

Broadband & Connectivity

§ 06 · Rolled up from MLS
● Max advertised speed at this address
5,000 Mbps
Fiber available · cable ok
Fiber to the Premises
Tachus Fiber Internet
5,000 / 5,000 Mbps
● LOW LATENCY
Fiber to the Premises
MidSouth Fiber Internet
5,000 / 5,000 Mbps
● LOW LATENCY
Fiber to the Premises
Fidium Fiber
2,000 / 2,000 Mbps
● LOW LATENCY
Fiber to the Premises
Xfinity
2,000 / 1,000 Mbps
● LOW LATENCY
Coaxial Cable
Xfinity
2,000 / 250 Mbps
● LOW LATENCY
Coaxial Cable
Optimum
940 / 35 Mbps
● LOW LATENCY
Copper
Consolidated Communications
500 / 75 Mbps
● LOW LATENCY
Licensed Fixed Wireless
Verizon
300 / 20 Mbps
● LOW LATENCY
+ 5 additional provider(s)

Environmental Risk

§ 08
X
FEMA Zone
Zone X · Minimal risk
Outside 100-year and 500-year floodplains. No flood insurance required by lender.
PANEL 48339C SFHA NO SOURCE 48339C_STUDY1
🌡 Heat days >95°F
57 days/yr above 95°F
Plus 12 days above 100°F. NOAA station records, 2016-2025 average.
💨 30-day air quality
AQI 51 · Moderate
Average daily AQI for the 30 days ending 2026-02-28. EPA AQS county monitors. Higher = worse.
🌵 Drought (current)
No drought (D1 or worse)
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
2 comparable sales 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
GRAND HARBOR 01
TIER: SUBDIVISION
Subdivision name (MLS)GRAND HARBOR 01 City · ZIPMontgomery · 77356 CountyMontgomery Listings in subdivision184 Active now3 Sold (last 12 mo)1 Curated amenities60
● Year-built distribution
2000s 3

Fire Protection

§ 11
Nearest station
Montgomery Fire Department Station 55
· Montgomery
Distance
2.0 mi
Straight-line from listing
ISO rating
Future data point
Avg. response
From incident log (future)

Neighborhood Demographics

§ 12 · Census tract 48339694303 · ACS 2023
Median HH income
$130,389
ACS 2023
Median home value
$614,900
Census self-report
Owner-occupied
77%
1,449 housing units
Bachelor's+
41%
Adults 25+
Median age
39.4
Population 3,757
Work from home
40%
of commuters
Commute 45min+
8%
of commuters
Below poverty
8.8%
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
11836 Seashell Circle, Montgomery, TX 77356
Montgomery County · 30.42°N, 95.67°W
grocery
Chevron Food Mart
1.4 mi · 1 within 2 mi
gas_station
Chevron Food Mart
1.5 mi · 1 within 2 mi
gym
Spring Fitness Montgomery
1.5 mi · 1 within 2 mi
park
1.5 mi · 3 within 2 mi
Interactive map coming in v0.2 — currently showing schematic placement.
● Listing History
Jul 16, 2026 Listed $855,000 Joseph Ray Diosana
Dec 31, 2000 Built
Status change events from HAR MLS (future: full audit trail)
● Disclosures & Attribution
Listed by Joseph Ray Diosana · Keller Williams Memorial
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 Jul 16, 2026.
MLS# 80611230 · LIST DATE: Jul 16, 2026 · PARCEL: 272644
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, 10:44 PM CDT. Properties may subsequently be sold or off-market. Equal Housing Opportunity