Tower Road is where Galveston County stops looking like Houston. Run south off Highway 6 in Santa Fe and the lots widen, the fences turn into pipe, and the listings start describing barns instead of bonus rooms. Buyers searching for the best realtor for acreage and horse property in Tower Road Estates are usually coming from a subdivision and assuming acreage works the same way, just bigger. It does not. Water, septic, ag valuation, and the plat itself decide these deals, and the subdivision name on the sign tells you almost nothing about what you are buying.
First, the thing nobody tells acreage buyers about Tower Road Estates
"Tower Road Estates" is a platted subdivision name covering more than one phase, and the lots inside it are not uniformly large. In the public subdivision record at the time of writing, the median lot was 18,000 square feet, roughly four tenths of an acre. The true multi-acre tracts, the horse setups and the shop-and-pasture properties, sit along Tower Road frontage and in specific phases and adjoining parcels, not evenly across the plat.
So the first piece of real guidance: in this corner of Santa Fe, do not shop by subdivision name. Shop by legal description, lot dimension, and recorded restrictions, and have your agent pull the plat before you write. We have seen buyers tour a "Tower Road Estates" listing expecting pasture and find a generous suburban lot with a fence.
| What you are told | What you need to confirm | Where it comes from |
|---|---|---|
| "Acreage in Tower Road Estates" | Actual deeded acreage and lot dimensions | The recorded plat and the deed, not the listing remarks |
| "Horse property" | Whether the recorded restrictions permit livestock, and how many head | The subdivision's recorded deed restrictions |
| "Has a well" | Depth, condition, flow, and water quality test | Independent well inspection and water test |
| "On septic" | OSSF permit on file, system type, and capacity for your household | Galveston County Health District records |
| "Ag exempt" | Whether 1-d-1 open-space valuation is in place and will survive your purchase | Galveston Central Appraisal District |
The Santa Fe market around it, and why the city average misleads
| Metric | Figure | Scope and period |
|---|---|---|
| Homes for sale, ZIP 77517 | 79 | May 2026 |
| Average home price, ZIP 77517 | $377,469 | May 2026 |
| Average price per square foot, ZIP 77517 | $243 | May 2026 |
| Average home size, ZIP 77517 | 1,961 square feet | May 2026 |
| Median market and appraised value, Tower Road Estates | $574,980 each | 2025 subdivision record |
| Median sold price per square foot, Tower Road Estates | $212.13 | 2025 subdivision record |
| Recorded sales, Tower Road Estates | 30 | 2025 subdivision record |
| School district | Santa Fe ISD | Current |
Figures come from public appraisal and MLS-sourced directory data at the time of writing and will move.
Look at the two price-per-foot numbers together. ZIP 77517 averaged $243 per square foot on a 1,961 square foot average home, while Tower Road Estates sold at $212.13 per square foot on substantially higher total values. That is the signature of land-heavy pricing: less money per foot of house because more of it is in dirt, improvements, and outbuildings. An agent pricing acreage off a dollar-per-foot comp pulled from Santa Fe tract housing will be wrong in both directions, usually badly.
The non-obvious factors that decide acreage deals in Santa Fe
| Factor | Why it matters out here | What to do about it |
|---|---|---|
| Ag or open-space valuation | Texas 1-d-1 open-space valuation can cut the tax bill dramatically, but it depends on qualifying use history, not on lot size | Confirm the current valuation with the appraisal district, and understand what happens to it after your purchase, including rollback exposure if you change the use |
| On-site sewage facility | Acreage here is on septic, permitted through the Galveston County Health District | Pull the OSSF permit, get the system inspected, and size it for your intended bedroom count before you plan a shop or a guest quarters |
| Water source | Some tracts are on a public supply, some on a private well, and some on both | Test the well, and if you are on a public line, confirm the tap size and meter location rather than assuming the main reaches your building site |
| Lending is different | Larger tracts, outbuildings, and land-heavy value can push a deal out of conventional residential underwriting | Talk to a lender who routinely does acreage or farm-and-ranch in Galveston County before you make an offer, not after |
| Floodplain and drainage | Flat coastal prairie drains slowly, and ditch and culvert maintenance on a long frontage is your job | Review the flood map for the exact tract, and walk it after a hard rain if you can |
| Restrictions still exist | Rural does not mean unrestricted, and horse-friendly restrictions in one phase do not apply to the next | Read the restrictions for your specific phase and legal description |
| Commute reality | Highway 6 and I-45 put League City, Texas City, and the NASA and Clear Lake employment centers within reach, with Santa Fe High School and Santa Fe Junior High close in | Drive the actual commute at the hour you would drive it |
Ag valuation is the line item that costs people the most money. Buyers hear "ag exempt" and underwrite the low tax bill into their monthly payment. If the qualifying use lapses or changes after closing, the valuation can be lost and a rollback assessed. Get that answered in writing during the option period, every time.
The tradeoffs, honestly
| Option | Upside | Trade-Off |
|---|---|---|
| A large suburban lot inside the platted subdivision | Public utilities in many sections, conventional financing, predictable comps, and the easiest resale. | Four tenths of an acre is not acreage, and it will not support a shop, livestock, or real separation from neighbors. |
| A true multi-acre tract with an existing home and improvements | Move-in ready acreage, existing well and septic with a history you can inspect, and possible ag valuation already in place. | The highest entry price in the area, inherited deferred maintenance on outbuildings, and a narrower buyer pool at exit. |
| Raw or lightly improved land, then build | Full control of the site and the house, and land in this corridor has traded well below finished-home pricing. | Construction financing, OSSF permitting, utility extension, and a timeline that generates nothing until it is finished. |
Why acreage buyers and sellers call The Mandie McMillan Team
Mandie McMillan was born and raised in La Marque in 1976, the center of Galveston County, and has spent 50 years here, 26 of them licensed in this market. She has lived in her current League City home for 18 years, a short drive up Highway 6 from Tower Road. That matters on an acreage file because knowing which Santa Fe tracts drain, which have a usable well, and which phase allows horses is not something an agent reads off a listing sheet.
In 2025 our team of 6 producing agents closed 75 sides and $22,127,458 in volume, with Mandie personally closing 30 sides and $11,676,748. That is roughly 12.5 closed sides and $3.7 million per agent, which is the whole point: a file with a well, a septic system, an ag valuation, and a land-heavy appraisal needs an experienced agent actually in it, not a name on a forty-agent roster. Mandie is a RE/MAX International Hall of Fame inductee and a repeat RE/MAX Chairman's Club and Platinum Club honoree, and she served as 2017 President of the Bay Area chapter of the Women's Council of Realtors and as 2018 Texas District Vice President.
We operate as a Lifelong Advisor, the way you treat your CPA or attorney, not a one-transaction agent. Land files have long tails: the ag valuation, the septic, the eventual sale of a back parcel. Those questions come back years later, and we are still here to answer them.
If you are buying or selling acreage or horse property around Tower Road in Santa Fe, contact The Mandie McMillan Team at RE/MAX Coastal. Send the address or the legal description and we will pull the plat, the restrictions, and the appraisal record before you write an offer.
