This listing includes AI condition scoring, neighbourhood intelligence, and market valuation data — giving you a complete picture before you visit. Compare rental yield, price per square metre, and location strength against the broader Portuguese market to assess whether this property fits your investment strategy.
4-bedroom, 2-bathroom duplex of 98 m², built in 1994, energy rating E. Located on rua Ferreira de Castro, 54, Cascais e Estoril parish, Cascais municipality, Lisbon district. Noteworthy Features: This duplex boasts ample natural light from three new Velux windows in the attic, offering breathtaking sea and mountain views from its two open balconies.
The valuation. The asking price of €460,000 is below the fair value of €517,778, positioning the property as underpriced by €57,778 (12.6%). This presents a compelling opportunity for potential investors.
Fair value modelled at €517,778 from the area baseline, adjusted for condition and location. Asking €460,000 sits €57,778 (12.6%) below — the upside to fair value.
Asking €460,000 versus the rua Ferreira de Castro, 54 area baseline of €485,002 (€4,949/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 74/100 (Condition 70 · Materials 75 · Room dimensions 78). Below-median condition lowers fair value versus a renovated baseline unit.
Neighbourhood score 68/100 (Housing Market 70 · Amenities 65 · Economic 72 · Tenant Quality 65). Strong amenities and housing-market momentum support a premium to baseline.
rua Ferreira de Castro, 54
Area baseline €485,002 + condition -€2,144 + location +€34,920 = modelled fair value of €517,778 (€5,283/m²), a €57,778 (12.6%) gap versus the €460,000 asking price.
Long-term rental The 4-bed duplex in Cascais, listed at €460,000, presents a compelling long-term rental opportunity with a fair value of €517,778, indicating it is subvalued by 12.6%. With a gross yield of 4.2% and a favorable suburban environment, it can attract stable, family-oriented tenants seeking quality living conditions. Family rental This property is ideally suited for family rental given its size and condition score of 74/100, combined with a neighbourhood quality rating of 68/100. The combination of good economic and tenant stability in the Greater Lisbon region underscores its appeal to families looking for a comfortable and practical home. Buy-and-hold Investing in this duplex as a buy-and-hold strategy allows for capital appreciation potential, especially as it is priced below fair value. Considering the area's growth prospects and tenant demand, holding this property long-term could yield significant financial benefits as the market develops further.
Economic Dependency Risk The property's economic stability score of 72 indicates a moderate risk of economic fluctuations potentially impacting tenant retention, while a tenant stability score of 65 suggests a higher likelihood of tenant turnover, both of which could disrupt cash flow.
