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Middle school · Grades 6–8 · Calvin Nelms Charter Schools
TEA rating A · score 90 of 100 (2025) · 160 students
Address: 20625 Clay Rd, Katy, TX 77449
Phone: (281) 398-8031 ext. 101
Website: cnchs.net (opens in a new tab)
Data as of: TEA ratings 2025 · school directory September 14, 2026 · homes for sale live from our MLS feed
We show what the Texas Education Agency and the schools published as of our last update (September 14, 2026), and we check TEA for rating and directory updates monthly. Attendance zones, ratings and school assignments can change, so check with Calvin Nelms Charter Schools (opens in a new tab) for the most current information.
Homes for sale
Scope: homes within 3 miles of Calvin Nelms Middle School. Charter schools enroll by application, not by address, so no home is zoned to them.
$360,000
22815 Tuscany Ridge Lane
Katy · MLS #26424471
$249,900
4219 Field Meadow Drive
Katy · MLS #39132063
$350,000
2934 Granite Vale Road
Houston · MLS #66922523
$239,500
3406 Rainmill Drive
Katy · MLS #12759367
$275,000
4722 Lonestone Circle
Katy · MLS #36525800
$299,998
5643 Round Robin Drive
Katy · MLS #14453017
$349,000
22415 Unicorns Horn Lane
Katy · MLS #86380331
$414,900
1706 Durfey Lane
Katy · MLS #56123598
$279,000
3303 Bent Spring Court
Katy · MLS #81842970
$289,900
20010 Crazy Horse Circle Drive
Katy · MLS #61729310
$299,990
4430 Verona Hills Lane
Katy · MLS #98840604
$265,000
3230 N Mason Road
Katy · MLS #91849691
$285,000
19502 River Bottom Road
Katy · MLS #39764047
$215,000
19643 Aventine Plantation Drive
Katy · MLS #23800177
Awaiting
listing agent
to upload photos
$370,000
20638 Beeston Glade Lane
Bear Creek · MLS #91846208
$199,000
18534 Trail Bend Lane
Houston · MLS #96226571
$409,900
3210 Piney Forest Drive
Houston · MLS #58291759
$89,000
21235 Woodland Green Drive
Katy · MLS #50345019
$279,000
20902 Hall Colony Court
Katy · MLS #36971447
$310,000
5003 Forest Moss Court
Houston · MLS #81261518
$493,320
3806 Glenfield Shadow Court
Katy · MLS #42716075
$439,000
23415 Bracino Lake Drive
Katy · MLS #75684454
$330,000
3834 Alder Pass Court
Katy · MLS #98886030
$309,000
3306 Coopers Ridge Way
Houston · MLS #6255245
Active listings from our MLS feed. Listing information is provided in part by the Houston Association of REALTORS®.
The school
A
TEA rating 2025
Score 90 of 100
160
Students
Texas Education Agency, 2024-25
21.1:1
Students per teacher
6–8
Grades served
Teachers average 16.5 years of experience. Average teacher salary $72,254.
| Year | Rating | Score |
|---|---|---|
| 2025 | A | 90 |
| 2024 | A | 91 |
| 2023 | A | 93 |
| 2022 | A | 92 |
| 2021 | NRNot Rated: Declared State of Disaster | — |
| 2020 | NRNot Rated: Declared State of Disaster | — |
| 2019 | A | 91 |
| 2018 | NRMet Standard | 90 |
Final ratings only (preliminary ratings are not shown). Source: Texas Education Agency.
Principal: Mr Timothy Starnes (TEA AskTED directory).
Local market
Scope: homes within 3 miles of Calvin Nelms Middle School. Sale figures appear only where at least 5 homes sold in the period; averages and dollar volume are for signed-in clients.
495 homes are for sale within 3 miles; at the last six months' sales pace that is 4.9 months of inventory. Homes that sold here in the last six months had a median price of $280,000.
Each figure is compared with the same period last year. Where last year's data isn't in our feed yet, you'll see "—".
$279,000
Median sale
homes sold, last 30 days
-1% YoY
a year ago: $282,750
89
Homes sold
last 30 days
-1% YoY
a year ago: 90
95
Avg days on mkt
homes sold, last 30 days
+64% YoY
a year ago: 58
$150
Price / sqft
homes sold, last 30 days
+6% YoY
a year ago: $142
175
New listings
last 30 days
-28% YoY
a year ago: 242
101
Went pending
last 30 days
+25% YoY
a year ago: 81
These tiles cover the last 30 days. The median sale price at the top covers the last 6 months, and the days-on-market figure in the read above is for homes for sale right now, so the numbers differ.
What's nearby
Scope: 234 places mapped within 3 miles of the campus.
Toggle a category on or off.
Amenities mapped near Calvin Nelms Middle School: 90 restaurants, 30 schools, 23 grocery stores, 23 gas stations, 14 places of worship, 9 coffee shops, 9 parks & trails, 8 pharmacies, 8 daycares, 8 banks, 4 gyms & fitness, 3 veterinary, 3 post offices, 2 police stations.
Flood, fire & weather
Scope: homes within 3 miles of Calvin Nelms Middle School. Flood claims are counted by ZIP code; the fire station is measured from the campus.
1%
Homes for sale in the FEMA high-risk flood area
Special Flood Hazard Area, current FEMA maps
X
FEMA flood zone at the campus
Outside the high-risk area
0.8 mi
Nearest fire station
Fire Station (straight line)
72
Days a year at 95°F or hotter
2016–2025 average
Sources: FEMA National Flood Hazard Layer; FEMA NFIP claims; Texas fire station locations. Flood risk is address-specific.
Crime & safety
Scope: The agency that patrols the campus address. Figures cover that agency's whole service area, not this neighborhood.
Incidents per 1,000 residents per year, 2025-06 to 2026-05 (12 months). Across 61 agencies in our six counties the middle value is 14.2.
Jurisdiction-level only: the agency that patrols this address does not publish incident-level open data, so figures cover its whole service area. Source: FBI Crime Data Explorer.
Utilities & internet
Scope: 26 census tracts touching this area. FCC data is reported by census tract, not by address.
100%
Tracts with fiber service
8,000 Mbps
Fastest advertised download
15
Home internet providers
| Provider | Technology | Max download |
|---|---|---|
| AT&T | Fiber to the Premises | 5,000 Mbps |
| Xfinity | Coaxial Cable | 2,000 Mbps |
| Spectrum | Coaxial Cable | 1,000 Mbps |
| Verizon | Licensed Fixed Wireless | 300 Mbps |
| Starlink | NGSO Satellite | 280 Mbps |
| Viasat Inc | GSO Satellite | 100 Mbps |
| AT&T | Copper | 100 Mbps |
| AT&T | Licensed Fixed Wireless | 100 Mbps |
Source: FCC Broadband Data Collection.
Drive times
Scope: Averaged across 73 homes for sale within 3 miles; traffic-aware, from our own routing engine.
36min
Downtown Houston
32min
The Galleria
46min
Bush / IAH Airport
43min
Texas Medical Center
55min
Hobby Airport
Keep exploring
Feeder patterns (which elementary feeds which middle school) are not published in the data we hold.
Good to know
I'll help you check the assigned schools, the flood exposure and the real costs of living here before you decide.
Allen Markel, REALTOR® · Texas Premier Realty · TREC #0658294
School data: Texas Education Agency (ratings, TAPR, AskTED). Market, flood, amenity, internet and crime data: Allen Markel · Texas Premier Realty research from public sources and our MLS feed.
Homes for sale in the search area we show for Calvin Nelms Middle School are in Katy (414), Houston (76). Being near a school is not the same as being zoned to it, so confirm the zone for any address. Source: our listing data.
There are 495 homes within 3 miles of Calvin Nelms Middle School for sale right now, with a median list price of $299,900 and a median of $145 per square foot. The median listing age is 48 days, and 42 have had a price cut. We show homes within a set distance because a published attendance-zone boundary is not available for this campus, so a home in this count is not guaranteed to be zoned here. Counts change daily. Source: our listing data.
Right now the search area we show around Calvin Nelms Middle School has 495 homes for sale, 15 listed recently and 128 under contract. Counts change daily as homes list, go under contract and close. This is a set distance around the campus, not an attendance zone, so a home in these figures is not guaranteed to be zoned here. Source: our listing data.
Homes for sale in the search area we show around Calvin Nelms Middle School by list price: 86 under $250K, 383 $250K to $500K, 20 $500K to $1M, 1 $1M+. The mix shows where the choices are, and a price band with few homes can move quickly or sit depending on condition. Source: our listing data.
The subdivisions with the most homes for sale in the search area we show around Calvin Nelms Middle School right now are Morton Creek Ranch (35), Jasmine Heights (28), Grand Oaks (23), Waterstone (19), Grand Mason Crossing (16), Raintree Village (12), Lakeville (8), Silvermill (8). Counts change daily, and a subdivision name does not tell you which school a home is zoned to, so confirm the zone for any address. Source: our listing data.
Calvin Nelms Middle School enrolled 160 students in the 2024-25 school year, according to TEA data. It serves grades 6 to 8. TEA reports about 21.1 students per teacher. Calvin Nelms Middle School is part of Calvin Nelms Charter Schools. Enrollment changes each year, so ask the school for the current count. Source: Texas Education Agency (TEA) data as published, and our own listing data.
Calvin Nelms Middle School serves grades 6 to 8 and is listed by TEA as a middle campus in Calvin Nelms Charter Schools. Grade spans and campus types are set by the district and can change, so confirm them with the school before you plan around them. Source: Texas Education Agency (TEA) data as published, and our own listing data.
TEA reports that teachers at Calvin Nelms Middle School have an average of 16.5 years of experience and an average salary of $72,254, in the 2024-25 report. Averages hide a lot of variety among individual teachers, so use them as context, not a verdict. Source: Texas Education Agency (TEA) data as published, and our own listing data.
Calvin Nelms Middle School received a A (90 out of 100) in the Texas Education Agency accountability ratings for 2025. Earlier years: 2024 A, 2023 A, 2022 A. A rating summarizes a school's results under TEA's method for that year; it is one input among many, so visit and ask questions. Source: Texas Education Agency (TEA) data as published, and our own listing data.
On the STAAR tests at Calvin Nelms Middle School, 85% of tests reached the Approaches Grade Level standard or above, 58% reached Meets and 26% reached Masters, in TEA's 2024-25 report. STAAR is one measure taken on one set of days, so read it alongside the school's other information. Source: Texas Education Agency (TEA) data as published, and our own listing data.
Attendance zones follow the address, not the neighborhood name, and they can change. To confirm which school a specific home is zoned to, look it up with our School Research tool on the Resources menu and ask Calvin Nelms Charter Schools to confirm the assignment in writing before you make an offer. Homes near Calvin Nelms Middle School are not all zoned to it, so verify each address.
About 39% of the 490 homes for sale in the search area we show around Calvin Nelms Middle School have had at least one price cut. Over the last 12 months, the monthly share of listings with a cut ran from 30% to 54%. A price cut can mean the first price was too high, the home needs work, or the seller needs a faster sale; it is a reason to ask, not a verdict. Source: our listing data.
For homes that sold in the search area we show around Calvin Nelms Middle School, the monthly average time on the market ran from 58 to 111 days over the 12 months to August 2026, counting days cumulatively when a home was relisted. The 490 homes for sale now have been listed for an average of 84 days. About 39% of them have had a price cut. Pace depends heavily on price band and condition. Source: our listing data.
By months of supply, the search area we show around Calvin Nelms Middle School is a balanced market right now: 4.9 months of supply, with 495 homes for sale against 617 sales in the last six months. Months of supply is the number of months it would take to sell the homes now listed at the recent pace of sales. The label describes the area as a whole; a particular price band or street can behave differently. This is a set distance around the campus, not an attendance zone, so a home in these figures is not guaranteed to be zoned here. Source: our listing data.
The typical drive from the search area we show around Calvin Nelms Middle School to Downtown Houston is about 36 minutes, based on measured drive times from 73 homes. Other destinations: The Galleria 32 minutes, Bush / IAH Airport 46 minutes, Texas Medical Center 43 minutes, Hobby Airport 55 minutes. Actual time depends on the route and the hour, so test the drive at the time you would make it.
About 1% of the homes for sale in the search area we show around Calvin Nelms Middle School are in a FEMA special flood hazard area, based on the flood zone recorded for each listing. A flood zone is a map designation, not a history of flooding, and the zone for a specific address is what matters. Check the address on our Flood Zone Lookup and get an insurance quote before the end of the option period. Source: our listing data.
Homes that sold in the search area we show around Calvin Nelms Middle School over the last six months had a median sale price of $280,000. A median is the middle sale: half sold for more and half for less. The monthly median over the 12 months to August 2026 ran from $265,000 to $289,000. Your own price band, home age and size matter more than any area median. This is a set distance around the campus, not an attendance zone, so a home in these figures is not guaranteed to be zoned here. Source: our listing data.
The median price per square foot for homes that sold in the search area we show around Calvin Nelms Middle School is $143. In August it was $150, against $137 in the same month a year before. Price per square foot compares homes of different sizes, but age, lot, condition and finish can move it a lot. Source: our listing data.
About 1,120 homes sold in the search area we show around Calvin Nelms Middle School over the 12 months to August 2026, and 617 of them in the last six months. In the 12 months before that, 1,153 sold, so sales were 3% lower in the latest year. Monthly sales swing with the season and the price band, so one month tells you little. This is a set distance around the campus, not an attendance zone, so a home in these figures is not guaranteed to be zoned here. Source: our listing data.
We compare each of the last 12 months with the same month a year earlier. Near Calvin Nelms Middle School, the median sale price was higher in 1 of those months and lower in 11. Closed sales over the 12 months were 3% fewer than the 12 months before. Month-to-month medians are noisy, and this describes the past, not a forecast. Source: our listing data.
Within the area we map around Calvin Nelms Middle School, our What's Nearby data lists 23 grocery stores, 90 restaurants, 9 coffee shops, 9 parks, 8 pharmacies, 8 banks, 23 gas stations. Counts depend on how the places are tagged in public map data, so treat them as a guide and check what you need near a specific address.
Around Calvin Nelms Middle School, 15 internet providers are listed in the federal broadband data for the census tracts in the area, with a fastest advertised download speed of 8,000 megabits per second. Fiber service is listed in all of those tracts. Availability is decided address by address, so check a specific home with the provider before you rely on a speed. Source: FCC broadband data.
Of the 495 homes for sale in the search area we show around Calvin Nelms Middle School, 58 are new construction and 437 are pre-owned. New construction is flagged on the listing, and a home still being built may not be finished for months. Source: our listing data.
Among homes for sale in the search area we show around Calvin Nelms Middle School: in the under $250k band the typical home is about 1,463 square feet with 3 bedrooms and 2 bathrooms, built about 38 years ago; in the $250k to $500k band the typical home is about 2,300 square feet with 4 bedrooms and 2 bathrooms, built about 14 years ago; in the $500k to $1m band the typical home is about 3,199 square feet with 4 bedrooms and 3 bathrooms, built about 0 years ago. These are medians for the homes listed now, so individual homes vary. Source: our listing data.
