Technical architectural floor plan of a three-bedroom apartment, showing walls, door swings, windows and furniture in outline

Design–Build · Houston

Where Vision
Becomes Structure

01 — Philosophy

We don't just design buildings. We engineer certainty.

3XS is a design-build firm. Architecture, engineering and construction sit under one roof, on one contract, with one team accountable from the first site walk to the final punch list.

That structure closes the gap where most projects lose money: the hand-off between the people who draw the building and the people who build it. Our drawings are made by people who will pour the slab.

We work from Houston, on Houston ground — its clay soils, its flood maps, its heat — for investors who need to know what a project will cost, and when it will open, before they commit.

Explore Our Process
Interior of a 3XS-built residence, afternoon light across a timber-lined hall

02 — Our Foundation

Sustainability. Safety. Speed.

Three commitments, one name. Every 3XS project is measured against all three — no trade-offs between them.

I

Sustainability

Buildings that cost less to run for the forty years after we hand over the keys. Envelope first, then systems, then finishes.

  • Low-embodied-carbon materials, regionally sourced
  • Energy modelling from schematic design, not after
  • Designed for Gulf Coast heat, humidity and stormwater
II

Safety

Rigorous standards on site and in the finished building. A zero-compromise culture, backed by protective technologies that go beyond code.

  • Structural and life-safety engineering in-house
  • Daily site audits with a named safety lead
  • Wind, flood and fire resilience designed in
III

Speed

A streamlined design-build process with a single point of accountability. Faster delivery, without sacrificing what the drawings promised.

  • Permitting and pre-construction run in parallel
  • One contract, one schedule, one team
  • Guaranteed dates you can put in a pro forma

03 — Work

Built in Houston. Designed to endure.

Westheimer Commons, a mixed-use block with a brick-and-glass street frontage
Westheimer CommonsMontrose, Houston · 2025 · Mixed-Use
Bayou Residence, a low timber-clad house set among live oaks
Bayou ResidenceRiver Oaks, Houston · 2024 · Residential
Heights Flex Warehouse, a steel-framed light-industrial building with clerestory glazing
Heights Flex WarehouseHouston Heights · 2025 · Commercial
Memorial Medical Suites, a two-storey clinic with a shaded limestone entry
Memorial Medical SuitesMemorial, Houston · 2023 · Commercial
Katy Distribution Center, a long tilt-wall facade under a single continuous canopy
Katy Distribution CenterKaty, TX · 2024 · Industrial
Cypress Creek Townhomes, a row of eight units with deep porches and standing-seam roofs
Cypress Creek TownhomesCypress, TX · 2024 · Residential

04 — Process

Design. Build. Deliver.

Three phases, one team throughout. The people in the first meeting are the people on site at the end.

Define

Site analysis, feasibility and investor alignment. We test the numbers before anyone draws a line — zoning, drainage, utilities, cost per square foot, and the schedule that makes the pro forma work.

  • Site and due-diligence review
  • Feasibility and budget range
  • Program and phasing agreed with the investor
Aerial view of a cleared Houston site marked out for construction

Design

Architectural development with engineering integrated from the first sketch. Structure, mechanical and envelope are resolved together, and materials are chosen for how they weather here, not how they render.

  • Concept through construction documents
  • Structural, MEP and civil in-house
  • Material selection and cost lock
Physical study model of a commercial building on the studio table

Build

Construction management, quality control and final delivery by the same team that drew the building. One schedule, one point of accountability, and a handover that matches the render.

  • Self-performed management, vetted trades
  • Weekly quality and safety audits
  • Commissioning and close-out documentation
Detail of a finished facade: board-formed concrete meeting a timber soffit
The 3XS team around a drawing table in the Houston studio

05 — Studio

Houston-built. Detail-obsessed.

We are architects who read structural drawings and builders who care where the shadow line falls. The studio was founded on the belief that the best buildings come from one room where those conversations happen out loud.

The work runs from single residences to industrial campuses to mixed-use blocks, and that range is deliberate: a warehouse teaches you economy, a house teaches you tolerance, and a clinic teaches you both at once.

Being design-build means we own the outcome. If a detail is hard to build, we find out at the drawing board, not on the day the concrete truck arrives.

12Years in business
140+Projects completed
2.1MSq. ft. delivered

06 — Connect

Let's Collaborate

Tell us about your project. We'll tell you how we build it.

Studio411 Fannin St
Houston, TX 77002, United States

We reply within two business days.