Homes for Sale/Fort Bend County/Katy/Grand Lakes
Active MLS #27138283 · 33 days on market

5603 Timber Bay Court

Katy, TX 77450
Subdivision  ·  Grand Lakes
List Price
$838,000
$216/SF · 15.0% above neighborhood median
Beds
5
Baths
5
Sq Ft
3,885
Built
2004
Lot
0.31 ac
Garage
2-car
County
Fort Bend
Tax Rate
1.75%

Schools

§ 03
District
Elementary ROOSEVELT ALEXANDER EL A
Middle BECKENDORFF J H A
High SEVEN LAKES H S CCMR 92% · Grad 100% A
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

Beautiful 5-bedroom, 4.5-bath home in highly sought-after Grand Lakes! Offering over 3,800 sq. ft. on an impressive 13,000+ sq. ft. lot, this spacious home features a private pool and an exceptional backyard setting. The property backs to one of Grand Lakes' scenic neighborhood lakes, providing beautiful water and fountain views from the backyard and pool area. Mature trees, attractive landscaping and generous green space add to the appeal. Inside, large windows showcase the backyard views while the versatile two-story floor plan provides plenty of room for everyday living and entertaining. Grand Lakes offers lakes, walking trails, pools, tennis courts, playgrounds and more, all conveniently located near shopping and dining and zoned to highly rated Katy ISD schools. A rare combination of space, pool, oversized lot and lake views!

Features

§ 02

Interior

  • Two Bedrooms Down
  • Heat: Central
  • Heat: Gas
  • Cool: Central Air
  • Cool: Electric

Exterior & lot

  • Subdivision
  • Views
  • Roof: Composition
  • Foundation: Slab
  • Attached
  • Garage
  • Gunite
  • In Ground

Community

  • Lake
  • Water
  • Style: Traditional

Property Details

§ 03 · Full MLS record

Property

Property Type Residential
Property Sub Type Detached
Architectural Style Traditional
Year Built 2004
Year Built Source PublicRecords
New Construction No

Building

Stories 2
Levels Two
Living Area 3,885 sq ft
Living Area Source Appraiser
Building Area Total 3,885 sq ft
Foundation Slab
Construction Brick, Stucco
Roof Composition

Rooms & Baths

Bedrooms 5
Bathrooms (total) 5
Bathrooms Full 4
Bathrooms Half 1
Rooms Total 6
Fireplaces 1

Interior

Interior Features Two Bedrooms Down

Exterior

Pool Private Yes
Pool Features Gunite, In Ground
View Yes
View Type Lake, Water

Parking & Garage

Garage Spaces 2
Attached Garage Yes
Parking Features Attached, Garage

Lot

Lot Size (acres) 0.3060
Lot Size Source Appraiser
Lot Features Subdivision, Views

Location

County Fort Bend
MLS Area Major 36
MLS Area Minor Katy - Southeast
Subdivision Grand Lakes
Postal Code 77450

Utilities

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

HOA / Association

HOA Yes
HOA Fee $1,250
HOA Fee Frequency Annually
HOA Name Grand Lakes HOA
Fee Includes Clubhouse, Common Areas, Recreation Facilities

Taxes, Terms & Disclosures

Tax Annual Amount $14,672 <small style="color:#6b7280">· from 2025 county roll</small>
Tax Year 2025 (county roll)
Tax Rate (est.) 1.75%
Parcel # 3531-06-002-0110-914
Legal Description GRAND LAKES PHASE THREE SEC 6, BLOCK 2, LOT 11
Listing Terms Cash, Conventional, FHA, Va Loan
Lease Considered No
Disclosures Seller Disclosure

Room Layout

§ 04 · 6 rooms · MLS-supplied

Main level · 3

Primary Bedroom 16x15
Bedroom 13x12
Office 9x8

Second level · 3

Bedroom 12x11
Bedroom 11x10
Bedroom 13x11

MUD Disclosure (§49.452)

§ 03 · Data moat
● §49.452 Notice on file
0.0525
TOTAL TAX RATE · PER $100 ASSESSED · latest on file
JurisdictionGrand Lakes WCID CountyFort Bend TCEQ District ID3403030 Bonded indebtedness Current year rate0.0000 FetchedApr 23, 2026
● Stale — high risk
● 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 0.4836 Resolved MUD jurisdiction Grand Lakes WCID Match confidence 71%

Taxes & Cost of Ownership

§ 04
● Estimated monthly payment
$6,255
30-YR FIXED · ADJUST ASSUMPTIONS BELOW
%
%
Principal & interest$5,032 Property tax$1,223 Homeowners insuranceTBD
Subtotal (P&I + Tax) $6,255
Yearly HOA fee $1,250

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 · 5-year history
2.1227%
ALL 6 TAXING DISTRICTS · 2025 BILL
20212022202320242025
MUD
0.05%
→ stable
School
1.12%
→ stable
City
→ stable
County
→ stable
Other districts
0.95%
→ stable
YearM&OI&STotal MUD rate
2021 0.0400 0.0300 0.0700
2022 0.0331 0.0300 0.0631
2023 0.0314 0.0275 0.0589
2024 0.0300 0.0225 0.0525

HOA & Community

§ 05
● HOA details
$1,250
ANNUALLY
Association nameGrand Lakes HOA Management co. Website Phone(281) 492-9154 Cert on filehoa.texas.gov
Fee includes
Clubhouse · CommonAreas · RecreationFacilities
● Community amenities
park
· 0.1mi
· 0.2mi
Exploration Park · 1.3mi
veterinary
Pet Medical Center of Katy · 0.3mi
Pet Medical Center of Katy · 0.5mi
UrgentVet · 0.7mi
restaurant
Carrabba's Itallian Grill · 0.3mi
Carrabba's Itallian Grill · 0.5mi
Smashburger · 0.4mi
urgent_care
CareNow Urgent Care - Katy · 0.3mi
CareNow Urgent Care - Katy · 0.5mi
AFC Urgent Care · 5.4mi
grocery
Whole Foods Market · 0.4mi
· 0.6mi
Whole Foods Market · 0.6mi
bank
Wells Fargo Bank · 0.4mi
Wells Fargo Bank · 0.6mi
Chase Bank · 0.6mi

Broadband & Connectivity

§ 06 · Rolled up from MLS
● Max advertised speed at this address
8,000 Mbps
Fiber available · cable ok
Fiber to the Premises
Ezee Fiber
8,000 / 8,000 Mbps
● LOW LATENCY
Fiber to the Premises
AT&T
5,000 / 5,000 Mbps
● LOW LATENCY
Coaxial Cable
Xfinity
2,000 / 250 Mbps
● LOW LATENCY
Fiber to the Premises
Xfinity
1,200 / 35 Mbps
● LOW LATENCY
Licensed Fixed Wireless
Verizon
300 / 20 Mbps
● LOW LATENCY
NGSO Satellite
Starlink
280 / 30 Mbps
● LOW LATENCY
Licensed Fixed Wireless
T-Mobile
100 / 20 Mbps
● LOW LATENCY
Copper
AT&T
100 / 20 Mbps
● LOW LATENCY
+ 3 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 48157C SFHA NO SOURCE 48157C_STUDY1
🌡 Heat days >95°F
72 days/yr above 95°F
Plus 24 days above 100°F. NOAA station records, 2016-2025 average.
🌵 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
6 comparable sales nearby · sold median $188/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
Grand Lakes
TIER: SUBDIVISION
Subdivision name (MLS)Grand Lakes City · ZIPKaty · 77494 CountyFort Bend Listings in subdivision6,438 Active now16 Sold (last 12 mo)25 Curated amenities60
● Year-built distribution
1995s 2 2000s 11 2005s 3

Fire Protection

§ 11
Nearest station
Community Volunteer Fire Department
Distance
1.4 mi
Straight-line from listing
ISO rating
Future data point
Avg. response
From incident log (future)

Neighborhood Demographics

§ 12 · Census tract 48157673009 · ACS 2023
Median HH income
$160,833
ACS 2023
Median home value
$458,200
Census self-report
Owner-occupied
69%
2,050 housing units
Bachelor's+
64%
Adults 25+
Median age
33.0
Population 6,658
Work from home
29%
of commuters
Commute 45min+
15%
of commuters
Below poverty
11.1%
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
5603 Timber Bay Court, Katy, TX 77450
Fort Bend County · 29.71°N, 95.76°W
park
0.1 mi · 10 within 2 mi
veterinary
Pet Medical Center of Katy
0.3 mi · 2 within 2 mi
restaurant
Carrabba's Itallian Grill
0.3 mi · 3 within 2 mi
urgent_care
CareNow Urgent Care - Katy
0.3 mi · 2 within 2 mi
Interactive map coming in v0.2 — currently showing schematic placement.
● Listing History
Aug 21, 2026 Listed $838,000 Mary Vergara
Dec 31, 2003 Built
Status change events from HAR MLS (future: full audit trail)
● Disclosures & Attribution
Listed by Mary Vergara · Walzel Properties - Corporate Office
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 22, 2026.
MLS# 27138283 · LIST DATE: Aug 21, 2026 · PARCEL: 3531-06-002-0110-914
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, 10:39 PM CDT. Properties may subsequently be sold or off-market. Equal Housing Opportunity