Defying the Drop: Inside the Striking Castela House by BIRI Architects

Building a dream home often comes down to a brutal game of compromises, especially when balancing a tight budget against high design ambitions.

When BIRI Architects took on the challenge of crafting a family home in Nova Lima, Brazil, they didn’t let a drastically uneven plot of land deter them. Instead, they weaponized the site’s intense topography to build a stunning, multi-layered architectural masterpiece.

Say hello to Castela House. Born from a strategic plot acquisition where a steep incline meant an accessible price tag, this home is a masterclass in turning structural challenges into pure design opportunities.

Conquering a 13-Meter Slope

The defining feature of the plot was a massive, intimidating 13-meter slope separating the main house level from Rua Grandolfo below.

Rather than fighting the grade with endless, uninspired concrete stairs, BIRI Architects leaned into a bold, industrial infrastructure solution. They installed a vertical elevator tower paired with a dramatic metal walkway that bridges the gap between the street and the front door.

[Street Level] ➔ [Vertical Elevator Tower] ➔ [Earthy Metal Walkway] ➔ [The Front Door]

This structural connection does far more than just ferry the family up to their living space. It creates an unforgettable arrival experience—a physical pause that offers panoramic views of the surrounding natural landscape.

At the base of the site, a heavy-duty retaining wall anchors the cut into the mountain to create secure parking spaces.

This smart earth-moving logic is repeated at the back of the lot, carving out a private courtyard that is entirely sheltered from the wind and outside eyes.

Fluid Living and a Layered Layout

The interior layout of Castela House is built around an incredibly smart philosophy of progressive privacy. The collective, high-traffic spaces unfold seamlessly across the ground floor, while the private quarters—consisting of a master suite and two children’s bedrooms—occupy the upper deck.

* Upper Level: Master Suite + Two Children's Bedrooms
* Ground Level: Living Room, Dining Room, Ping-Pong Room, Kitchen
* Creative Core: An integrated artist's atelier stretching to the courtyard

Transitioning between these two zones is a gorgeous, mixed-structure staircase. The first flight is built from sleek steel, which seamlessly transitions into reinforced concrete for the second flight.

It is a brilliant touch that reflects the mixing of structural materials found throughout the entire build.

The ground floor plan prioritizes total fluidity. Spaces unfold in a generous, unrestricted sequence from the front facade all the way to the private rear courtyard.

You’ll find the living room, dining room, a dedicated ping-pong room, and the kitchen flowing effortlessly into one another, maximizing the dialogue between the interior architecture and the great outdoors.

Raw Materiality with an Earthy Soul

“BIRI Architects didn’t build a sterile modern box; they crafted a home that embraces the raw texture and industrial palette of its regional landscape.”

The materiality of the residence speaks directly to its location. The build pairs a rock-solid reinforced concrete frame with ceramic masonry enclosures and expansive aluminum-framed windows that flood the home with natural light.

The standout feature is the painted steel vocabulary used on the elevator tower, walkway, and outdoor pergola. The architects finished these elements in a rich, earthy tone—a direct, clever nod to the iron ore that colors the dust and atmosphere of Nova Lima.

Inside, the home sheds its rugged exterior to reveal its most intimate layer. As the home of a working visual artist, the walls serve as an extension of her atelier, dotted with vibrant canvases and paintings in various states of completion.

Filled with objects of family memory and lit by a highly discreet, precise lighting scheme, Castela House stands as a beautiful reminder that great design isn’t about avoiding obstacles—it’s about building right through them.

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