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 penthouse of 205 m² on the 6th floor, built in 1979, energy rating D. Located Rio de Mouro parish, Sintra municipality, Lisbon district. This penthouse features a remarkable private rooftop with 360-degree views, including the iconic Palácio da Pena, enhancing its outdoor living experience.
The valuation. The asking price of €415,000 is below the fair value of €484,093, indicating a discount of €69,093 (16.6%). This property is considered subpriced and presents an attractive opportunity for potential buyers.
Fair value modelled at €447,562 from the area baseline, adjusted for condition and location. Asking €415,000 sits €32,562 (7.8%) below — the upside to fair value.
Asking €415,000 versus the Rio de Mouro, Sintra, Lisbon area baseline of €406,105 (€1,981/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 78/100 (Condition 74 · Materials 79 · Room dimensions 80). Above-median finish quality lifts fair value versus a baseline unit needing CapEx. Full condition report →
Neighbourhood score 70/100 (Housing Market 75 · Amenities 65 · Economic 70 · Tenant Quality 70). Strong amenities and housing-market momentum support a premium to baseline. Full location report →
Rio de Mouro, Sintra, Lisbon
Area baseline €406,105 + condition +€8,969 + location +€32,488 = modelled fair value of €447,562 (€2,183/m²), a €32,562 (7.8%) gap versus the €415,000 asking price.
Long-term rental The property's favorable location in a middle-class residential area near Lisbon, paired with a gross yield of 4.7%, presents a compelling opportunity for long-term rental investors. With a fair value gap of 16.6%, the investment is positioned for strong demand in the rental market. Buy-and-hold As the property is subvalued relative to its fair market value, it presents an attractive buy-and-hold investment for future appreciation. The stable employment and amenities in the neighborhood further enhance its potential for long-term capital gains. Family rental This penthouse, with its ample space and suburban setting, appeals to families looking for comfortable, long-term housing. Given the neighborhood's ratings for condition and safety, this property is well-suited for family rental purposes.
Economic Tenant Instability The combined scores of 70/100 in both economic stability and tenant stability indicate a moderate risk of potential fluctuations in rental income or tenant turnover.
