Selling Your Home in Katy?

Market data

Katy home values and market activity

HAR 2025 neighborhood facts

Source: HAR.com · HAR.com · HAR.com (HAR 2025 Facts, based on appraisal district records). Market and appraised values are not sale prices. HAR’s neighborhood boundary may not match the subdivision exactly.

Seller preparation

What Katy buyers will ask, and what to have ready

1. Addicks, Barker and Cypress Creek

   Most of the Katy area drains to one of three HCFCD watersheds: Addicks Reservoir (138 square miles, Langham, Bear, Horsepen and South Mayde creeks), Barker Reservoir (Mason Creek and upper Buffalo Bayou) or Cypress Creek to the north. In Hurricane Harvey (2017) the reservoirs held about 140 billion gallons and flooded about 10,000 upstream properties, according to the federal lawsuit Community Impact covered; the court said many owners did not know they were in a flood pool. Fort Bend County homes drain through the Fort Bend County Drainage District system instead.

   • Ask whether the lot is inside a reservoir flood pool; the seller's disclosure form asks this.
   • Harris County addresses can also be checked in MAAPnext draft maps (awareness only).

   What buyers will do: Before an offer, check the address on FEMA's map and HCFCD's tool, ask for the seller's disclosure, any elevation certificate and flood claims history, and get a flood insurance quote.

   What to have ready: Your seller’s disclosure flood answers, any elevation certificate, your flood insurance declarations page and records of any claim, repair or mitigation work.

   Sources: FEMA Flood Map Service Center · HCFCD Flood Education Mapping Tool · HCFCD: Addicks Reservoir watershed · HCFCD: Barker Reservoir watershed

2. City limits, county and MUD decide the bill

   Inside the City of Katy the city levies $0.425 per $100 (2025 adopted). Katy ISD is $1.1171 for 2025 and 2026. Harris County homes add Harris County ($0.38096), Flood Control ($0.04966), Hospital ($0.18761), Port and Department of Education (2025); Fort Bend homes add Fort Bend County ($0.412 for 2025, $0.407 for 2026) and its drainage district ($0.01). Outside city limits, a MUD and an ESD usually apply; 2025 MUD examples range from Cinco MUD 3 at $0.232 to Harris County MUD 534 at $1.50 per $100.

   • The Texas school homestead exemption is $140,000 (more for 65+ or disabled owners).
   • A seller in a MUD must give the statutory district notice before you sign.

   What buyers will do: Pull the HCAD, FBCAD or Waller CAD record, list every taxing unit, and estimate taxes on your purchase price; the seller's bill reflects their value and exemptions, not yours.

   What to have ready: Your latest tax statement with its list of taxing units and your exemptions. Buyers know their own bill will be figured on their own value and exemptions, so a clear breakdown helps.

   Sources: Harris Central Appraisal District · Fort Bend Central Appraisal District · Waller County Appraisal District · Texas Comptroller: special district database

3. Confirm the school district and campus

   Katy ISD serves much of the area, but some Katy addresses are in Cy-Fair ISD, Lamar CISD or Royal ISD. Katy ISD's SARA tool returns the assigned campuses for an address, and the district has presented boundary options for August 2027; check whether the board has adopted them.

   What buyers will do: Run the address in SARA (or the other district's lookup), read the boundary modification page, and confirm the assignment with the district before you sign.

   What to have ready: Point buyers to the school district’s own school finder; never state a school assignment yourself.

   Sources: Katy ISD: Attendance zones (SARA) · Katy ISD: Boundary modification

Insurance and disclosures: buyers will price homeowners and flood insurance before they commit. Have your current declarations pages, any elevation certificate and any flood-claim history ready; Texas sellers also answer flooding questions on the seller’s disclosure notice (Texas Property Code §5.008). See our Houston flood map guide.