Founded in 2004 by businesswoman Maria Rui Gonçalves, who has over 30 years of experience in the real estate sector, and with a team that adds value in other fields such as architecture and law, CASAIN is a real estate boutique dedicated to the curation of exclusive and personalised real estate solutions, designed to find the best options for buying, selling, or renting properties in the Greater Lisbon area, Comporta, and other locations of interest, according to our clients’ profiles.
We have been based in Campo de Ourique since 2006, in the heart of the city — a typically Lisbon neighbourhood, family-oriented and full of life — considered one of Lisbon’s districts with the highest quality of life. It is sought after by both Portuguese and foreigners of various nationalities, being a residential area and, at the same time, one with a strong commercial tradition, reflected in a wide variety of shops and services.
At CASAIN, feel at home! We look forward to welcoming you!
Meet CASA IN
Featured Developments
We assess your property and the market to define the ideal price and secure the best deal.
Comparative market analysis
We promote your property on major portals, social media, and through our network of contacts.
Property promotion
We handle enquiries, visits, and feedback, matching your property with the right clients.
Contact and viewing management
We negotiate terms and conditions to ensure your interests are fully protected.
Contract negotiation
We connect you with trusted lawyers and financial advisers for legal and credit support.
Legal and financial advisory
We design interior projects to enhance your property’s value and uniqueness.
Interior architecture design
We support our clients every step of the way, always protecting their interests.
Personalised support
"I have been a client of Casain for 20 years as the owner of a rental apartment. I work with other agencies as well, but the truth is that it is always Sara who manages to find the ideal tenant. Sara is basically the Cristiano Ronaldo of real estate agents. She represents both landlord and tenant exceptionally well, and everyone is impressed by her efficiency in closing agreements and bringing contracts to completion. It is a privilege to have Sara as my real estate agent!"
Duarte MS
"Real estate is not just about selling properties; it's about creating a narrative, a story of home. Each transaction is a chapter in the larger story of someone's life."
Josh Altman
"It turned out beautiful! Counting the days until our arrival. We’ll be there at the end of the month!"
Roberta S.
"Sara was recommended to me for her agility in the real estate market, honesty, and effectiveness. She sold my old house and soon after helped me find my new dream home! She was always on my side ensuring she closed the best deal possible."
Catarina J.
"I also wanted to thank you for all the dedication and professionalism you put into renting my apartment so effectively. (...) And for sure, I will share your contact with the best references for anyone looking to rent, buy or sell a house."
Luísa S.
"Sara, congratulations on your work, which in addition to being qualitative, was decisive."
Gonçalo E. (Promoter)
"Casain helped us find the ideal apartment in the heart of Campo de Ourique, and transform a renovation project into a life project. We are very happy with our new home, in our own way!"
Pedro S. et Roberta S.
"Another CPCV signed! Congratulations, Sara, for all your work and dedication in closing yet another deal with our developer."
Gonçalo E.
"I would like to praise Helena for her excellent service, the extra time she dedicated, and her sincerity, care and consideration throughout the whole process. Highly recommended."
Maximus H. (Australie)
"I wanted to thank Helena for both her kindness and the patience she showed throughout the entire process."
José L. F. (Lisboa)
"Casa In impressed us with their attentive service, from the visits all the way to the signing. Bravo, and thank you!"
Alex e Amina (Paris)
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