Casa de Mareas

A Home that Cares for You


A unique 16th century mansion designed for living and working, adapted to contemporary needs.

“It is the home of the tide watchers, a tribute to the guardians of the ecosystem, to bird lovers and to those who care for the planet. A space that promotes creativity and art as a language to transmit values”.

To the tide mills of Cantabria

HOMES THAT TAKE CARE OF YOU: It is HOUSING that places the HEALTH of PEOPLE and the PLANET at the centre of the design.

Being sustainable is no longer enough. We are in the era of the quest for ecological and human well-being, two indivisible concepts. Casas que Cuidan de Ti is a concept of holistic architecture. For this we take into account principles of Neuroarchitecture, which include cognitive and emotional issues, energy efficiency and sustainability, combining proposals related to Wellness, such as rest and a good ecological diet as some examples, without neglecting beauty and aesthetic pleasure. Promoting the physical, intellectual, emotional and spiritual well-being of the person. This well-being leads us to connect with creativity. With our concept of coliving we try to enhance the creativity and comfort of those who occupy these spaces, taking into account all these aspects, the exterior and interior design, as well as a lifestyle.

Our houses take into account these 10 pillars of well-being

Good for you, good for the environment

This 16th century mansion has been carefully refurbished with sustainability in mind, providing it with all contemporary needs, including welfare measures. The house has 600 built meters and 735 m2 of plot. These WELL measures are considered by the GLOBAL WELLNESS INSTITUTE as attributes that increase the comfort and well-being of its occupants making the environment healthier. Here are some examples:

Natural ecological photocatalytic paints based on silicates, which allow stone walls to breathe and help prevent dampness (three 15-litre cans of this paint absorb more than 10 kg of CO2, the same amount as an adult tree per year).

Home office area with ergonomic furniture designed by the Spanish firm ACTIU, national design award winner and WELL certified.

Filters for water treatment, avoiding limescale, chlorine and heavy minerals, incorporating ionisers that regulate the pH, combat oxidation, hydrate and alkalise the body,

All products used for cleaning the house are natural and environmentally friendly. For disinfection we use water with ph 2.5, which can be obtained from our ioniser. This machine has different pH levels and can, for example, wash fruits and vegetables with pH 8 and remove pesticides or drink alkaline water with pH 8.5 and 9.0.

The project incorporates biophilia, which means “love of life and living things”, coined by biologist Edward Osborne Wilson in his book Biophilia. coined by the biologist Edward Osborne Wilson in his book Biophilia, which won him two Pulitzer prizes. It argues that contact with nature is essential for human psychological development. This vital desire for contact with nature is as important as establishing relationships with other people. The house includes a garden divided into two connected plots.

Internet system combined with SIGNIFY’s LIFI for the home office/coworking area, an alternative technology not based on electromagnetic waves, 100 times faster than wifi connection, healthier, safer and environmentally friendly.

Casa de Mareas is the first home to incorporate this pioneering technology, which reduces exposure to radio frequencies without sacrificing download speed while ensuring the well-being and health of those present by eliminating radio frequencies in the connection.


In this project we try to minimise the impact of electromagnetic waves to promote rest and sleep quality. We want to encourage a conscious use of the spaces and for this reason we combine LIFI for the work area, wifi for the common areas and high speed wired internet at 1000 megabytes if you want to have a fast connection in the rooms and avoid multiple repeaters, as this house from the 16th century has thick stone walls.



7 rooms with en suite bathroom (one triple)

Double room with adapted bathroom

Maximum capacity 15 people

Private outdoor parking for 3/4 cars

Equipped with linen and kitchenware

Lift available to the first floor

Private garden

Optimal connections and equipment for teleworking

In-house workspace with 8 workstations with LIFI technology

1 cooker with induction hob and 1 gas cooker

Laundry with 2 washing machines + 1 tumble dryer

3 living rooms with fireplaces, 2 with TV and 2 dining rooms

From 1 July 2023 Casa de Mareas will have a swimming pool (construction is currently being finalised)

Virtual visit

Respectful rehabilitation

The house dates from the 16th century. It was the residence of the Lamadrid family, whose coat of arms can be seen on the façade. It is a typical Cantabrian mountain house with a façade listed as BIC. Its integral rehabilitation process has lasted about two years. The house was very deteriorated but even so we have tried to recover as many of the original materials as possible. Contrasts have been sought, incorporating more modern finishes with natural materials that are even more different from the original elements: polished cement floors that blend in with the stone walls, modern light sheet metal staircases that fit into the gaps left by the century-old beams.

In the main hall it was possible to maintain the original hydraulic floor in its entirety, restoring other pieces found in the house that have been used to give personality to the bathrooms and to introduce some elements from the original house into them. Some 70% of the new materials incorporated have been recovered from demolition work. The wooden floor in one wing of the house is made of old pine, more than 100 years old, as are all the interior doors. Natural materials, sobriety and respect for its original essence.

:As this was a refurbishment of a listed house, preference was given to preserving the character of the house by leaving the interior exposed stone, to the detriment of implementing insulation that would make it more sustainable. All the windows in the house had to be made new and are made of wood, in accordance with BIC protection regulations.


Architect: Patxi Eguiluz.

Developers and interior designers: Penélope and Sylvia Girón.

Concept: The Sibarist I Intentional Living


Final result

Interior design and art

The interior design was carried out in a state of alarm by COVID19, so it was an exercise in sustainability and creativity. All the materials and furniture from various family homes were used. The tables in both dining rooms were made from old wooden floors, and as seats, for one of them some old benches were reused that were originally found in the house and were restored, as well as a bullfighting poster from the Santander bullring from the 1950s and some old cartwheels that appeared on the site.

Most of the furniture is of family origin from different periods, all combined with the use of fabrics, upholstery and natural fabrics such as cotton, linen, recovered jutes… combined with top quality equipment such as 100% Egyptian cotton sheets and towels and beds with the best hotel standards.

Art is a very important component of the life of the house. Works of art by emerging artists supported by The Sibarist from its ART U READY platform have been incorporated: we can find pieces by Sergio Femar, Remed, Carla Cascales, Marta Páramo, artist of the association DEBAJO DEL SOMBRERO, Misael del Rosario, Federico Takkenberg and Leonardo, the youngest artist in our country, which coexist with works by established artists such as José Guerrero. The result is an eclectic, original, cosy and very comfortable interior design, aware of the current moment we live in, with a responsible consumer conscience.

Rental modalities




8 people

Home office

Coworking 8 seats

1 Living/dining room with fireplace and TV. 1 Dining room

1 Kitchen

Parking 3/4 cars




15 people

Home office

Coworking 8 seats

3 Living rooms with fireplaces (2 with TV). 2 dining rooms

2 Kitchens

Parking 3/4 cars


nutritious and healthy breakfast on request

handmade and organic soaps

lavender and rosemary soaps created by The Sibarist

daily cleaning

(weekly change of linen)

daily cleaning and lighting of fireplaces

water ioniser with different PH

in both kitchens

High-performance creative retreats

Humantific. Sensemaking for changemaking

We count on Humantific as an exceptional PARTNER, one of the most prestigious consultancies in innovation, creativity and cultural changes in teams and companies. Humantific has been transforming organisations and collaborating with business and design schools around the world for more than 20 years. They are based in New York and work on projects globally. For COMPANIES we offer different programmes focused on developing innovation and creativity skills, as well as strategic and team alignment sessions. For FAMILIES we have developed special programmes at reduced prices to help with the situation we are living in. These are focused on developing innovation and creativity skills in the family environment, exploring and empowering the talents of each individual as well as the family team. These dynamics also help to improve family coexistence, and can be applied to family entrepreneurship, solving challenges, etc. For people over 14 years of age.



Tailor-made experiences

Wellness, sport, gastronomy and nature


Discover the Natural Park of Las Marismas de Santoña by bike. Let yourself get lost along its countless paths.


Enjoy surfing on the best beaches in Cantabria. We offer you lessons at the famous Berria beach, just 3 km away.


A yoga class to start the day or at sunset – on the beach?



We bring you the best local gastronomy at home. We will also recommend you our favourite restaurants.


We take you to Cenador de Amós or if you prefer we bring it home. You choose.


Would you like to discover the best anchovies in Santoña? Get ready for the most gastronomic route.

Creativity and entrepreneurship



We will get to know models of local entrepreneurship and learn the whole process of artisan production.


Art workshops and talks with inspiring artists from our ART U READY platform.


Its aim is to foster social development by harnessing the potential of the arts to awaken creative capacity.


Natural environment

Located in Escalante, also known as the “Santillana del Mar de Trasmiera”, this small village located in the eastern part of Cantabria of medieval origin captivates us with its large houses that conserve their mountain style. On the shores of the marshes of Santoña and catalogued as a natural park, the whole area maintains its ecosystem intact, located just 3 km from one of the best beaches in Cantabria, the kilometre-long beach of Berria, chosen by surf lovers as one of their favourite beaches par excellence where they go throughout the year, especially suitable for beginners. The beach of Trengandín in Noja is 7 km away, considered one of the best in Spain by National Geographic in 2023.

The Natural Park of the Marshes of Santoña, Victoria and Joyel, with more than 4,000 hectares of high ecological value, is considered one of the most biologically diverse enclaves in Spain, with more than 20,000 birds of 120 different species, small mammals and a unique flora. A good number of them come from Northern Europe and choose Santoña to spend a much milder winter than in their countries of origin. Spring and autumn are the migratory seasons, making this the ideal time to observe seabirds. Among other species, you will be able to see large and small loons, red-necked grebes, black-faced goose barnacles, common scoters, medium-sized serins and common razorbills.

It is only 35 km from Santander, 6 km from Santoña, a lively town all year round, especially at weekends and in summer, and 65 km from Bilbao and its international airport.

Escalante is a discreet village that remains authentic, well known locally for its gastronomic appeal. Lovers of tranquillity and gastronomy will find their special Eden here, enjoying the famous anchovies from Santoña, sardine skewers, as well as other famous Cantabrian dishes, such as cocido montañés (Cantabrian stew).