Casa Mercks

Santa Ana, San José, Costa Rica

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Casa Mercks

Santa Ana, San José, Costa Rica

Firm

5-17 Arquitectura

Type

Residential › Private House

STATUS

Built

YEAR

2023

SIZE

3000 sqft - 5000 sqft

BUDGET

$100K - 500K

Casa Mercks is a minimalist residence that conceals a rich interior world, where light, concrete, and vegetation choreograph a calm and sculptural domestic experience.

Located in Santa Ana, San José, Costa Rica, the project sits on a narrow plot in a warm valley with distant views toward a wind-energy landscape. The site’s proportions presented the primary challenge: maximizing spatial quality and natural comfort within a confined width, while responding to the client's desire for a clean, contemporary aesthetic with exposed concrete as the protagonist.

The clients, a Mexican family drawn to minimalist living, sought a home that embraced simplicity without sacrificing well-being. Their brief emphasized luminosity, thermal comfort, and functional spaciousness. Avoiding visual and structural clutter was essential, leading to the goal of eliminating central supports and achieving generous spans that would enhance openness and flexibility.

The architectural response is guided by the idea of a calm refuge — a home defined not by exhibition to the street, but by the richness of its internal atmosphere. Two structural side walls and prefabricated concrete slabs allow free spans of up to eight meters, opening the interior into fluid living spaces uninterrupted by columns. The absence of ceiling finishes further amplifies spatial height, optimizing thermal performance and reinforcing the honest expression of the materials.

A central light well becomes the heart of the house. It organizes circulation, bathes interiors in natural light, and frames a sculptural staircase that appears to “dance” between concrete, glass, and cascading vegetation. This vertical garden condition becomes the emotional core of the home — a soft, living counterpoint to the precision of the concrete structure.

The design embraces the tropical climate through passive strategies. Cross-ventilation flows through the elongated volume, while warm air rises toward the triple-height void. The careful balance between solid surfaces and controlled openings protects privacy and mitigates heat gain, resulting in fresh, shaded interiors without reliance on mechanical systems.

Material selection remains restrained yet expressive. Exposed concrete, glass, and natural vegetation define a timeless palette that highlights texture and shadow while fostering a serene domestic environment. The atmosphere is one of quiet sophistication — generous volumes, filtered light, and moments where nature punctuates the architectural rhythm.

Though outward-facing openings are minimal, the home maintains a dialogue with its context through the choreography of light, views, and movement. The result is a sanctuary that maximizes a narrow site and transforms its constraint into spatial generosity and poetic experience.

Casa Mercks demonstrates how minimalism in the tropics can prioritize sensory richness, climate responsiveness, and structural elegance. The home ultimately delivers a refuge where shadow, air, and greenery shape everyday life.

“Architecture that hides a sensorial experience within, holding in its heart a light that shapes the lives of those who inhabit it.”

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Casa Mercks

Santa Ana, San José, Costa Rica

Casa Mercks

Santa Ana, San José, Costa Rica

Product Spec Sheet

Collaborating Firms

Team