Preconstruction and Estimating in Houston

An estimate that ignores the drainage rules is a number that grows. In Houston, the permit path, the floodplain elevation, the soils and the detention requirement decide a building's cost as surely as the structure does, and an owner who learns about them after the bids are in has bought a surprise. Preconstruction is where we find them first.

We treat estimating as an investigation, not an arithmetic exercise. A concept plan, a parcel and a target use are enough to start, and from there we work out what the site will actually demand: how high the floor must sit, how much water the property must hold, which authority reviews what, and which materials have lead times that will set the calendar. The price follows from those answers.

Below is what our preconstruction service covers, how we build and update an estimate, and how it helps developers, owners and public agencies decide whether and how to proceed.

What preconstruction includes

Our preconstruction work covers site and constructability review, conceptual and schematic budgeting, value engineering, schedule development, procurement planning, permit mapping, subcontractor prequalification and bid leveling. It also covers a risk register: a running list of the items that can change the price or the date, each with an owner and a decision deadline.

The deliverable is a set of documents an owner can use: a budget by system, an allowance list, a schedule with named milestones, a permit and approvals matrix and a short memo on risks and options. Owners making decisions between sites, structures or delivery methods can compare them on the same basis. We often work alongside the design team in a design-build delivery or construction management at risk arrangement, but we also provide stand-alone estimating for owners who are still deciding how to deliver.

How we build and refine an estimate

We start with a conceptual estimate from historical unit costs adjusted for current markets, then convert it into a quantity-based estimate as drawings develop. Major systems are priced by trade with subcontractor input, so the numbers reflect what is actually being bought and not a database average. At each stage, we reconcile the new estimate with the last, and explain every change.

The estimate is also a tool for the design team. When a line item runs above target, we offer alternatives with price and schedule effects, and the design team and owner choose. The goal is to make decisions while they are cheap, which on Gulf Coast projects means before the geotechnical report is final, before the drainage plan is submitted and before long-lead equipment is released.

The Houston line items that surprise owners

Five items repeatedly decide whether an estimate holds. The first is flood elevation: the City of Houston requires new structures to sit at least two feet above the 500-year elevation, with three feet for critical facilities, and the cost of that lift ripples through grading, access and ramps. The second is detention, with outflow limits of 0.5 cubic feet per second per acre for a two-year storm and 2 cubic feet per second per acre for a hundred-year storm, calculated on the tract rather than the lot.

The third is soils. Clay-rich ground may need undercut, lime treatment, piers or structural slabs. The fourth is utilities, where an available main may not be large enough, and the fifth is groundwater withdrawal and subsidence, which in parts of the metro, including one Katy station with more than 14 inches of settlement over eighteen years, affects the design of buried systems. We identify each early. For earthwork and underground items, see our site development and utilities scope.

Deciding between sites, structures and delivery methods

Preconstruction is most valuable when an owner is still comparing options. Two parcels with similar prices may differ by millions in drainage and utility work. A tilt-wall shell and a metal building may land within a few percent of each other until soil treatment is added. A design-build contract may beat a hard bid on schedule but not on competition. Putting those comparisons in one document makes the decision clear.

We also help owners think about timing. Material prices and trade availability vary through the year, and in this region the hurricane season shapes the calendar. A schedule that lands the roof before September can be worth more than a small discount on a later start. Our work for commercial real estate developers and public sector owners uses the same approach.

Mapping the code and permit path

Because Texas has no single statewide commercial code edition and each municipality may adopt amendments, the first step is to identify which jurisdiction governs the site and which edition it applies. The City of Houston enforces the codes it adopts, the state sets the energy code for commercial and industrial work, and Harris County references the International Fire Code in the unincorporated area.

Accessibility review under the Texas Accessibility Standards applies to projects at or above $50,000 in estimated cost, and floodplain development permits apply to work in mapped flood areas. We assemble these into a permit matrix with typical review times and show the owner which approvals are on the critical path. That matrix often leads to an earlier submittal, a different pad location or a pre-application meeting with the reviewer.

A schedule with long-lead items named

We build a preconstruction schedule that includes design, permits, procurement and construction, and identify the activities that could move the end date. Structural steel, roof systems, switchgear, generators and specialty doors often lead the list. For items with long lead times, we recommend early release or reservation, which commits some cost earlier but protects the date. Our long-lead procurement service handles the process.

The schedule is a living document, updated as drawings, approvals and prices arrive. Owners see it monthly, and decisions that affect it are flagged with a due date.

Send the parcel and the program

Send us the parcel and the program. We will return a range, a permit path and a list of the five or six items most likely to move the number, so you can decide with the weather and the rules already in the plan.

Common Questions

What do you need to produce a useful early estimate?

A parcel or address, a target use and size, a concept plan if one exists, any geotechnical or survey information, and the owner's priorities on schedule and quality. From there we can produce a range and a list of unknowns. The more you share, the narrower the range.

Do preconstruction services obligate us to hire you for construction?

That depends on the agreement. Some owners engage us for a stand-alone preconstruction fee and then bid or negotiate the project, while others combine preconstruction with a construction contract. We explain the options and cost implications at the start.

How accurate is a conceptual estimate?

A conceptual estimate is a range, not a promise. Its accuracy improves as the design develops and as site-specific items like soils and utilities are confirmed. We state the range and the main uncertainties plainly.

What does value engineering mean in practice?

It means looking for ways to deliver the same function for less cost or time, such as changing a structural system, adjusting a floor elevation or standardizing details. We show the saving and what is given up so the owner can choose.

Can you review an existing set of bids or an estimate from another firm?

Yes. We can review scope, quantities, allowances and exclusions and tell you where the numbers look light or heavy. Many of the gaps lie in site work and temporary conditions.

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