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.
5-bedroom, 4-bathroom palace of 431 m² on the 2nd floor, built in 1840, energy rating F. Located on rua Soto Maior, 20, Santa Maria e São Miguel, São Martinho e São Pedro de Penaferrim parish, Sintra municipality, Lisbon district. Noteworthy Features: This stunning mansion boasts a luxurious spa area with a sauna and home cinema, alongside impressive views of Sintra's historic palaces from high-ceilinged rooms.
The valuation. The asking price of €3,900,000 significantly exceeds the fair value of €1,049,095, presenting a difference of €2,850,905 (73.1%). The property is clearly overpriced given the current market conditions.
Fair value modelled at €1,049,095 from the area baseline, adjusted for condition and location. Asking €3,900,000 sits €2,850,905 (73.1%) above — overpriced versus fair value.
Asking €3,900,000 versus the rua Soto Maior, 20 area baseline of €1,280,932 (€2,972/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 88/100 (Condition 85 · Materials 90 · Room dimensions 87). Above-median finish quality lifts fair value versus a baseline unit needing CapEx.
Neighbourhood score 69/100 (Housing Market 70 · Amenities 65 · Economic 70 · Tenant Quality 70). Strong amenities and housing-market momentum support a premium to baseline.
rua Soto Maior, 20
Area baseline €1,280,932 + condition +€53,875 + location +€70,294 = modelled fair value of €1,049,095 (€2,434/m²), a €2,850,905 (73.1%) gap versus the €3,900,000 asking price.
Long-term rental The current listing price of €3,900,000 is significantly above the fair value of €1,049,095, indicating that this property may not yield a favorable return in the long-term rental market due to its 1.9% gross yield. Additionally, the suburb's average tenant quality and neighbourhood rating of 69/100 suggest potential challenges in attracting high-paying long-term tenants at this price point. Family rental Although the property offers ample space with 5 bedrooms, the significant price overvaluation limits its appeal for family rentals, particularly in a neighbourhood with a moderate score of 69/100. Thus, while the property may attract interest, it is unlikely to meet the rental income expectations consistent with its asking price of €3,900,000. Buy-and-hold Given that the property is priced at €3,900,000, which exceeds its fair value by 73.1%, it is not a viable candidate for a buy-and-hold strategy for investors seeking steady appreciation and income. The 1.9% gross yield combined with a condition rating of 88/100 does not justify the elevated price, leading to a potentially negative investment outlook.
Economic Dependence Risk The economic and tenant stability scores of 70/100 indicate a moderate dependency on the local market, which could result in increased vulnerability to economic fluctuations affecting tenant retention and property cash flow.
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