Pereira Miguel Arquitectos Scatters a Concrete Courtyard House Along a Pine Forest Edge in Grândola

The Muda L11 House sits on roughly five hectares of agricultural land in Grândola, in Portugal's Setúbal district, inside the Rural Intervention Zone South of the Muda Detailed Plan. Pereira Miguel Arquitectos placed it where a small clearing already existed, near the western boundary and well back from the access road and the neighbours. That location matters. The house sits on the line where pine woodland meets a small watercourse lined with deciduous trees, and the plan is built around that edge.

The architects did not design a single object. They designed a set of separate orthogonal volumes connected by timber decks, and each one sits low enough to read as part of the ground. Low concrete houses in coastal pine landscapes are nothing new in this part of Portugal. What makes this one worth looking at closely is how much of the design effort goes into the spaces between the rooms: patios, screens, shaded decks and boardwalks. In this house, those in-between zones are where daily life happens, not leftover space.

A House That Settles Into the Clearing

From above, the strategy is clear. Flat roofs step across the sandy ground, a planted courtyard opens in the middle, and a long pool deck pushes out toward the trees. The floor level follows the existing topography, so the house does not need a platform or major earthworks. It reads as a cluster of low walls that might have been in the clearing for decades.

The orientation looks south and west, toward the small valley where the vegetation is densest. That choice gives the rooms the best views and puts the house's back to the more exposed parts of the plot. With a site this large, the team could have built anywhere. They chose the spot where the landscape already did the most work.

Arrival Along the Firebreak

Inside the plot, access runs along a compacted dirt track that mostly follows the existing firebreak on the eastern side. We think this is one of the smartest decisions in the project. The firebreak keeps vegetation under control on that boundary, and routing cars along it means arrivals never look across the private areas of the house. The landowner's maintenance obligation turns into the driveway.

The side facing the road is closed and rough on purpose: a board-formed concrete wall, a timber garage door and a perforated block screen. Sand dunes rise against the base, so the building seems partly buried. You get very little information from this approach, which makes the courtyards inside feel even more open when you reach them.

Courtyards as the Real Rooms

The bedrooms are mirrored in layout, and each opens onto its own enclosed patio and garden. This gives the house its domestic structure. Each sleeping room has a piece of outdoor ground that belongs to it alone, edged by concrete and timber cladding and planted with olive trees and grasses that suit the sandy soil.

The sunken courtyard shows the material contrast clearly: board-marked concrete for the heavy, permanent walls, and timber for the lighter infill. At dusk, lit steps and glowing windows turn the patio into a lantern. Even at night, the courtyard is the space the house faces.

Shade as a Building Material

In the Alentejo sun, shade is not a finish you add at the end. Here it is designed as carefully as the structure. Board-marked concrete columns hold up a covered terrace with a reed screen ceiling, and the slatted shadows move across the timber deck through the afternoon.

Concrete frames are used to compose views. Looking through one to a boardwalk across a sand courtyard, you see the striped shadows on the ceiling first and the landscape second. The architecture organises how light arrives, and that is where much of its character comes from.

Boardwalks, Screens and the Pool

Timber deck walkways connect the pavilions to each other and to the living areas. They float over sand and grasses instead of paving over them, so the ground plane stays soft and partly wild. The longest boardwalk leads to a lap pool, set beyond a concrete eave with pines backlit behind it.

The perforated block screens, with their mix of round and square openings, filter views and air between the paths and the patios. They are an easy way to give privacy without sealing off breeze. They also add one of the few decorative notes in a house that is otherwise very restrained.

Interiors Built From Warmer Materials

Inside, the palette warms up. A bedroom keeps its board-marked concrete ceiling but adds a built-in oak desk and a single square window framing the pines, lit by a soft cove. The living space switches to an oak slat ceiling and walnut shelving next to floor-to-ceiling glass, with a steel flue standing in the middle of the room.

The split is deliberate: concrete where the house meets the weather, wood where your body meets the house. The core volume also holds the kitchen and a cinema room, so the house is clearly designed for long stays and not just weekends. It will be worth seeing how the oak and walnut age alongside the concrete.

The Forest Edge After Dark

Seen between pine trunks at twilight, the glazed living pavilion and its cantilevered concrete roof show the house at its most open. Timber shutters on another pavilion close down the opposite side. Timber steps through the dunes lead up to a lit terrace, and the trees stay much taller than anything the architects built.

That difference in scale is the point. The house never tries to compete with the canopy. It stays below the tree line, frames it, and lets the forest set the vertical dimension.

Plans and Drawings

The plans show how the volumes are arranged: a narrow lower bar ending at the pool, a ground floor where bedroom wings wrap the courtyard, and a roof plan of layered flat roofs with rooftop terraces and the pool reaching out into the trees. The sections and elevations confirm how low the house is, stepping down the slope with glazed walls and keeping the pine backdrop above its roofline.

Why This Project Matters

Large rural houses in protected Portuguese landscapes often fail in the same way: one dominant volume, a lot of earthworks and a lawn. The Muda L11 House shows another approach. It builds in an existing clearing, follows the ground, reuses the firebreak as the access route and splits the program into pieces small enough to sit between trees. These are planning decisions rather than styling choices, and they are what make the house work.

Its other lesson is about the in-between. Private patios, reed-shaded decks and timber boardwalks carry as much of the design weight as the rooms they connect. For anyone designing in a hot, sandy, wooded setting, this is a useful model: put your effort into shade, thresholds and ground, and the enclosed rooms can stay simple.

Muda L11 House by Pereira Miguel Arquitectos (lead architect Luís Pereira Miguel; team Ana Abrantes, Patrícia Reis, Isa Esteves, Maria Magro), Grândola, Portugal. Area: 1,500 m² as listed in the project data (the architects describe a building of about 500 m²). Completed 2025. Photography by Fernando Guerra | FG+SG.

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