Navasota New Construction: Understanding Altamira's PID Assessment

Two new homes in Navasota can carry similar prices and still cost noticeably different amounts every year. The difference comes from how each subdivision paid for its pipes and pavement. Altamira is the city's next large subdivision, planned off SH 90 S at FM 3455. It is being set up with a Public Improvement District. In December 2024, city staff estimated the assessment at about $1,350 per lot per year for 20 years and described it as "the equivalent of a 50-cent tax rate on a $270,000 home." That planning estimate, which is not a final levy, would show up as a separate charge on the tax bill. It would also be disclosed to buyers at closing.

For context, the City of Navasota's own adopted property tax rate for tax year 2026 is $0.5078 per $100. Council adopted it on September 28, 2026, under Ordinance 1092-26, and it is the same as last year's rate, according to the city's financial transparency page. As the city estimated it, the Altamira assessment works out to almost a second city tax rate on top of the first.

A Second City-Sized Line on the Bill

To see why that matters, here are the baseline taxing units a homeowner inside the city and Navasota ISD would see for tax year 2026, with the PID estimate added at the bottom for comparison. Grimes County's adopted FY2026–27 budget lists a rate of $0.395, down from $0.423077 the year before. Navasota ISD's total rate is $0.9632.

The dollar column is simple math on the adopted rates. Real bills depend on appraised value, exemptions, and any other district that applies to a specific parcel. Still, the proportion holds. On the city's own example home, the estimated PID payment is close to what the owner would pay the City of Navasota itself, and it adds roughly a quarter to the baseline bill.

The school portion won't change that proportion this year. Navasota ISD has a Voter-Approval Tax Ratification Election on the November 3 ballot. KBTX reported that it would move 12 cents from the debt service side to maintenance and operations. Superintendent Dr. Stu Musick said the total rate stays at $0.9632 whether it passes or fails.

Two Financing Tools, Only One Billed to Homeowners

Altamira is unusual because two public financing tools are attached to it, and they reach the homeowner in very different ways.

The first is Navasota's Tax Increment Reinvestment Zone No. 1. The city designated it in November 2022 for an area of about 2,890 acres, mostly in eastern Navasota and its extraterritorial jurisdiction. A 2023 amendment added about 211 acres, including the full Altamira tract. The zone works on growth. Once property in it rises above a set base value, 50% of the city's tax on that added value goes into a fund for zone projects. A homeowner inside the zone pays the same city rate as anyone else. The TIRZ changes where part of that money goes, but it doesn't add to the bill. The zone is set to end December 31, 2052.

On January 26, 2026, the TIRZ board approved an agreement allowing up to $9,124,278.37 in available zone funds to reimburse developer Grimes Altamira LLC for infrastructure, as the Navasota Examiner reported. The board's agenda packet lists the kind of work involved: concrete paved streets, an onsite sanitary sewer lift station, offsite sewer, water, and natural gas extensions along State Highway 90, and a water plant.

The second tool is the PID, and this one does reach the homeowner. In its February 2026 council workshop, the city put it plainly. An assessment is not a property tax rate but a separate charge tied to the benefit the property receives. It is typically billed with the county tax bill, and a PID "is not a TIRZ" and "not an HOA." The same presentation lists estimated public improvements over the PID's life at $12,926,250. That covers water, wastewater, gas, storm sewer, detention, paving, common areas and amenities, plus administration and interest.

Both lists include paving and utilities. The city documents reviewed for this post don't say whether TIRZ reimbursements reduce the eventual PID assessment or cover a separate set of costs. That question bears directly on the final per-lot figure.

Why the City Said Yes

The city's incentives explain why the structure looks the way it does. In December 2024, city staff wrote that "the Altamira development will not be able to move forward without the creation of a public improvement district to aid in infrastructure costs." In return, the city gets land inside the development for an elevated water storage tower, a water well, and a small water plant. Staff also expected the project to spur growth on the east side and noted that it had already pushed the city limits eastward.

By January 2026, the January TIRZ packet described that infrastructure as the city's third elevated water storage tank and water well #8. Construction on both was "ongoing and nearing completion." Under this arrangement, the city avoids issuing debt. Staff wrote that the developer is repaid "strictly on an annual basis through the yearly collection of assessments," with no city obligation to fund the improvements from any other source. The city's workshop slides list the trade-off under "considerations / watch-outs," noting that assessments are "in addition to taxes."

A Payment That Doesn't Move When the Tax Rate Does

The PID payment behaves differently from the tax lines above it. Staff described a level annual payment over a proposed 20-year term. For planning, it was built on $17,560.71 in principal per lot at 4.5% interest. "The annual payment will not be subject to increase," and homeowners can pay off the principal at any time, which ends the assessment. A city administrative fee and a management fee are added on top.

Those figures have a few consequences:

• Over the full term, $1,350 a year for 20 years comes to about $27,000 before fees, for $17,560.71 of principal.
• As home values change, the dollar payment stays the same, so its weight compared with a percentage-based tax rate falls if appraisals rise.
• At resale, each property has its own amortization schedule. Staff wrote that one would be kept to track payments and the remaining principal, so a later buyer can see how many years are left.
• If it goes unpaid, the city's workshop notes that unpaid assessments can become a lien on the property.

At closing, staff said builders would present disclosure notices detailing the assessment for buyers to acknowledge, "in the same manner as disclosure notices used in MUDs and other special districts." On a contract, that notice is where the cost of the infrastructure becomes visible.

What Is Settled, and What Is Still Pending

The $1,350 figure is still an estimate. The city's own process explains why:

1. Created. Council adopted Resolutions 781-24 and 782-24 on December 9, 2024. The district was recorded in Grimes County's Real Property Records on December 12, 2024.
2. Development agreement. On February 23, 2026, it was presented at a workshop with MuniCap, the city's PID administrator, "in preparation for seeking Council's approval."
3. Service and Assessment Plan and assessment roll. These must be approved by council before anything is billed. Staff wrote that "no assessments can be implemented without City Council approval."

Research for this post did not turn up a later council vote that adopted the development agreement, a Service and Assessment Plan, or a final per-lot amount. Accounts of the city council's handling of the TIRZ agreement also conflict. On timing, KXXV reported in February 2026 that construction on the roughly 380-home Altamira subdivision is expected to begin in 2027.

Comparing Navasota New Construction Line by Line

None of this makes Altamira good or bad for a given buyer. A PID is a way to pay for infrastructure up front and spread the cost over 20 years, mostly among the homes that benefit from it. It also changes how two Navasota homes should be compared.

Stylecraft Builders' Pecan Grove community in Navasota currently advertises homes priced from $273,900. Nearby Pecan Lakes Estates has a homeowners association with published bylaws and deed restrictions, though the public pages don't list a dues amount. In the city PID records reviewed, Altamira is the only Navasota subdivision named with a PID. That is not a parcel-by-parcel check, so the special-district and HOA disclosures for any specific home are still the documents that settle the question.

A fair comparison between a Pecan Grove home and a future Altamira home lines up four things: the price, the baseline tax rates that apply to both, any HOA dues, and any assessment along with the number of years left on it.

Quick Answers

Does the TIRZ raise my taxes if I buy inside the zone? The city's plan funds the zone from a share of city tax revenue on increased value. It doesn't create a separate per-home charge.

Is a PID the same as a MUD? City staff called it similar in purpose but noted differences. A PID has no separate independent board, and no municipal debt is issued to reimburse the developer.

Where would the assessment show up? The plan is to place it on the Grimes County tax bill and collect it each year in the same way as property taxes.

If you're comparing new construction in Navasota and want help reading the tax rates, HOA dues, and special-district disclosures side by side for each home, Lamanda Jatzlau can go through those documents with you before you sign. Let's Connect.

This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.