PENNZOIL PLACE ARCHITECTURE: PHILIP JOHNSON AND JOHN BURGEE IN HOUSTON

Pennzoil Place was the building that made it clear something had changed. Completed in 1975–76 in downtown Houston, Texas, it consists of two 36-storey trapezoidal towers that face each other across a narrow gap, their tops cut at an angle rather than capped flat, their forms derived from the geometry of the plan rather than from the neutral logic of the modernist grid. It looked unlike anything that had been built before it. It was widely acclaimed, and it was immediately understood as a signal.

Philip Johnson and John Burgee designed Pennzoil Place at the moment when Johnson's long disenchantment with modernist orthodoxy was becoming a formal position. The building does not quote historical styles or apply ornament; it does something subtler — it uses geometry, massing, and the relationship between forms to produce an architecture of character rather than one of neutral efficiency. The result is a building that has aged well precisely because it does not look like a period piece: it looks like a decision.

It is Houston's most awarded skyscraper, and it remains one of the most carefully designed commercial towers of its era.

  • Written by Gavin Paisley, director & model-maker at Chisel & Mouse based in East Sussex, England.
  • Last updated: 03-Jun-26.

Photograph by Anders Lagerås, licensed under CC BY-SA 3.0 via Wikimedia Commons.

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What is Pennzoil Place?

Pennzoil Place is a pair of 36-storey office towers in downtown Houston, Texas. The two towers are identical in height — 523 feet (159 metres) — but offset from each other, with their footprints forming trapezoidal rather than rectangular plans. They are separated by a narrow gap — approximately ten feet wide at street level — and share a common atrium connecting their bases. Their rooflines are sliced at a 45-degree angle, creating a distinctive sloped profile that reads from the Houston skyline as a single composed silhouette.

The building is widely cited as Houston's most award-winning skyscraper and as a pivotal work in the transition from late modernism to postmodern commercial architecture.

Facts panel

Twin commercial office towers in downtown Houston, Texas.

  • Architects: Philip Johnson and John Burgee (Johnson/Burgee Architects)
  • Completed: 1975–76 (verify exact date — sources vary)
  • Location: 711 Louisiana Street, Houston, TX 77002, USA
  • Height: 523 ft (159m) — each tower
  • Floors: 36 storeys
  • Total floor area: approximately 1,597,000 sq ft (148,400 m²)
  • Structure: Steel frame with bronze-tinted glass and brown aluminium cladding
  • Plan form: Two trapezoidal towers, offset from each other, separated by a narrow gap
  • Shared element: A glazed atrium connecting the tower bases at ground level
  • Roofline: Sliced at 45 degrees on each tower, creating sloped rather than flat tops
  • Client: Pennzoil Company
  • Current status: Operating office complex (verify current tenancy and name)
  • Architectural style: Postmodern / Late Modern

Philip Johnson and John Burgee

For Philip Johnson's full biography and career, see our Philip Johnson architect guide.

In brief: Johnson was the American architect who introduced the International Style to the United States, championed Mies van der Rohe, designed the Glass House and collaborated on the Seagram Building. By the early 1970s, working with his partner John Burgee, he had moved decisively away from the neutral modernism he had promoted. Pennzoil Place was their first major statement of that new direction; 550 Madison Avenue in New York was its fullest expression.

Burgee (born 1933) was a trained architect and skilled project manager whose contribution to the technical realisation of the Johnson buildings was significant; the practice traded as Johnson/Burgee Architects from 1967 until their split in 1991.

Design: the geometry of two towers

The formal idea of Pennzoil Place is deceptively simple: two towers, geometrically identical, placed in close proximity and given a deliberate formal relationship to each other. The trapezoidal plan — each tower a parallelogram rather than a rectangle — means that the two towers, placed at 45-degree angles to each other, create a V-shaped composition that reads as a single object from a distance and as two distinct but related volumes at close range.

The sloped roofline — cut at 45 degrees on each tower — reinforces the relationship between the pair. The tops of the towers do not just stop; they respond to each other across the gap. The two angled planes create a kind of spatial tension between the buildings, drawing the eye upward and giving Pennzoil its distinctive silhouette on the Houston skyline.

At street level, the narrow gap between the towers is bridged by a shared glazed atrium, drawing pedestrians into the space between the buildings and providing a transition between the exterior city and the interior complex. This ground-level connection makes Pennzoil legible as a single project, not two adjacent towers that happen to match.

Photograph by Anders Lagerås, licensed under CC BY-SA 3.0 via Wikimedia Commons.

Structure, materials, and form

Pennzoil Place is clad in bronze-tinted glass and brown aluminium, giving it a warm, earthy tone unusual among the glass-and-steel towers of its period. The cladding system is a curtain wall of metal and glass applied to a steel structural frame; unlike the granite monumentality of 550 Madison, Pennzoil reads as a building of surface and reflection.

The choice of warm tones was not accidental. Against the bright Texas light, the bronze glass gives Pennzoil a richness that distinguishes it from the cool, reflective glass towers of the same era. The colour also changes with the light across the day — Pennzoil in morning sun reads differently from Pennzoil at dusk — giving the building a quality of time that many of its contemporaries lack.

Pennzoil Place and the postmodern turn

Pennzoil Place is often described as one of the first postmodern skyscrapers, and while the term is contested, the designation is useful. The building does not look like a late modernist tower: it lacks the grid, the neutral skin, and the commitment to structural expression that characterised the buildings of Mies or SOM. What it has instead is compositional intention — the idea that the relationship between forms, massing, and geometry can produce meaning without recourse to historical ornament.

This is not the same postmodernism as 550 Madison's Chippendale crown, which quotes history directly. Pennzoil's language is more abstract: it is postmodern in its rejection of modernist neutrality, but its means are geometric rather than figurative. This distinction makes it a genuinely transitional building — neither fully modern nor fully postmodern, but standing at the moment of change between the two.

Model-maker's lens

Pennzoil Place presents the modelling challenge of two buildings rather than one — but the two towers are inseparable, and their relationship is the point.

  • Focus — the composition of the two towers together: the gap between them, the opposing sloped rooflines, and the way the trapezoidal plans create a V-shaped form when viewed from above or from the front. This is a building best understood as a pair.
  • Detail — the sliced 45-degree rooflines, which create the building's most distinctive visual element; the narrow gap at street level that gives the composition its spatial tension; the warm bronze-tinted glass surface.
  • How it reads at small scale — the building's identity is fundamentally about form and silhouette rather than surface detail, which means the model communicates the essential idea very directly. The two angled rooflines read immediately.
  • How to display — ideally with the gap between the towers visible, which means displaying it slightly elevated or from a slight angle. The building's strong silhouette means it reads well from a distance as well as close up.

View the Pennzoil Place architectural model

Visiting Pennzoil Place

Pennzoil Place is an active commercial office complex in downtown Houston and is not a public attraction, though the exterior and the shared atrium at ground level are accessible. The building is best experienced from the surrounding streets, which afford views of the gap between the towers and the sloped rooflines from multiple angles.

Frequently asked questions about Pennzoil Place

What is Pennzoil Place?

Pennzoil Place is a pair of 36-storey office towers in downtown Houston, Texas, designed by Philip Johnson and John Burgee and completed in 1975–76. The two towers have trapezoidal floor plans, are separated by a narrow gap, and have sloped rather than flat rooflines. It is Houston's most award-winning skyscraper and one of the most significant commercial buildings of the postmodern era.

Who designed Pennzoil Place?

Pennzoil Place was designed by Philip Johnson and John Burgee of Johnson/Burgee Architects. Johnson was one of America's most influential architects, responsible for the Glass House (1949) and 550 Madison Avenue (1984). For his full career, see our Philip Johnson architect guide.

When was Pennzoil Place built?

Pennzoil Place was completed in 1975–76.

Where is Pennzoil Place?

Pennzoil Place is located at 711 Louisiana Street in downtown Houston, Texas 77002, in the heart of the city's commercial district.

What architectural style is Pennzoil Place?

Pennzoil Place is often described as postmodern or late modern. It departs from the neutral modernist skyscraper through its use of trapezoidal geometry, its sloped rooflines, and its compositional relationship between two towers — all of which produce an architecture of character and intention rather than of structural expression alone. It is a transitional building, standing at the moment when commercial American architecture was beginning to move away from the Miesian grid.

Why is Pennzoil Place significant?

Pennzoil Place is significant as the building in which Philip Johnson and John Burgee established a new formal language for the commercial high-rise — one based on geometry, massing, and spatial relationship rather than structural neutrality. It is Houston's most awarded skyscraper and is widely credited as a key precursor to the postmodern commercial architecture of the 1980s.

Related links

Sources / further reading

  • Wikipedia — "Pennzoil Place" — https://en.wikipedia.org/wiki/Pennzoil_Place
  • Franz Schulze — Philip Johnson: Life and Work (University of Chicago Press, 1994)
  • Historic Houston / various architectural surveys of downtown Houston