Casa Dunas

Single-family home

Casa Dunas

Punta Umbría, Huelva2022

Project data

Location

Punta Umbría, Huelva

Floor area

310 m²

Handover

April 2022

Construction time

13 months

Structure

Wood

Typology

Single-family home

The brief

The starting point

A home raised on timber pilotis, respecting the plot's original dune line.

Coastal regulations, and a real respect for the landscape, called for leaving the plot's dune line untouched — the house sits entirely on treated timber pilotis, keeping the dune intact below it and keeping earthworks to a minimum.

Both the structure and the exterior cladding, in timber, weather outdoors in a controlled way, gaining a silvery patina that was part of the original brief.

Casa Dunas — Single-family home

Before · During · After

Drag the line and walk through the whole build

The same plot at three moments. Move the control from left to right and watch the build progress across a single frame.

Casa Dunas — Slab and setting out
Casa Dunas — Structure assembled
Casa Dunas — Home handed over
DuringBefore

Slab and setting out

The reinforced concrete foundation already poured, with the structure starting to rise on top of it. It is the only moment in the whole build where anything is mixed on site.

Drag across the image, or focus the bar and use the ← → arrows.

Gallery

The finished house

General view
General view
Facade and massing
Facade and massing
Kitchen
Kitchen
Bathroom
Bathroom
Timber interior
Timber interior
Outdoor area
Outdoor area

Timeline

How the months on site break down

Six milestones between the first machine on the plot and the handover of keys, spread across the 13 months of this build.

  1. Month 1

    Setting out

    The home is marked out on the ground and the plot is prepared to start.

  2. Month 2

    Foundation

    Reinforced concrete slab. The only wet element in the whole build.

  3. Month 4

    Structure

    The timber panels arrive from the workshop and are dry-bolted onto the slab.

  4. Month 6

    Envelope

    Multi-layer roof and continuous external insulation: the house is closed off.

  5. Month 8

    Services

    Windows, ducting and pre-installations, with the home already protected from the rain.

  6. Month 12

    Handover

    Finishes, final inspection and the handover of keys.

An indicative breakdown over this project's real duration. Each milestone shifts with the site, the permit and the size of the home.

Technical solutions

What it is built with

The building system is the same across all our homes. We always separate what is installed from what is prepared: a house that arrives with the ducting done is not the same as one that arrives with the equipment fitted.

Standard

Light timber framing

12×4 cm studs and sole plates in certified structural timber, panelised in the workshop.

Standard

Continuous insulation

High-performance external insulation system: the thermal envelope runs outside, with no breaks and no thermal bridges.

Standard

Multi-layer roof

18 mm OSB, 50 mm of high-density XPS and 15 mm OSB over the timber structure.

Standard

Windows and glazing

Thermally broken aluminium or high-performance PVC, with 4/16/4 double glazing.

Prepared

Climate control

Air-source heat pump, underfloor heating or ducted air. The home is handed over with the pre-installation and ducting in place.

Prepared

Mechanical ventilation

Ducting allowed for in the design, ready for the air-renewal unit to be fitted.

Composition according to Amara's specification document.

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