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, 3-bathroom house of 175 m², built in 2021, energy rating C. Located on rua Fonte, Algueirão-Mem Martins parish, Sintra municipality, Lisbon district. The property features a well-designed private garden with a pool, located within a secure gated community that enhances its appeal and privacy.
The valuation. The asking price of €850,000 is significantly higher than the fair value of €665,318, leading to an overprice of €184,682 (21.7%). This discrepancy suggests that the property may not represent a sound investment at this price point.
Fair value modelled at €665,318 from the area baseline, adjusted for condition and location. Asking €850,000 sits €184,682 (21.7%) above — overpriced versus fair value.
Asking €850,000 versus the rua Fonte area baseline of €600,950 (€3,434/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 79/100 (Condition 75 · Materials 82 · Room dimensions 80). Above-median finish quality lifts fair value versus a baseline unit needing CapEx.
Neighbourhood score 72/100 (Housing Market 75 · Amenities 70 · Economic 70 · Tenant Quality 70). Strong amenities and housing-market momentum support a premium to baseline.
rua Fonte
Area baseline €600,950 + condition +€11,484 + location +€52,884 = modelled fair value of €665,318 (€3,802/m²), a €184,682 (21.7%) gap versus the €850,000 asking price.
Family rental The property in Algueirão-Mem Martins, listed at €850,000, is substantially overpriced compared to its fair value of €665,318, indicating a 21.7% gap that potential renters may find challenging to justify. With a gross yield of only 2.4% and a neighbourhood score of 72/100, it does not align well with family rental market expectations for value and return on investment. Long-term rental With a current listing price of €850,000, the long-term rental potential for this house is undermined by its significant overpricing against a fair value of €665,318. The low gross yield of 2.4% suggests that investors may struggle to secure satisfactory returns in this market, especially considering the neighbourhood's average rating of 72/100. Buy-and-hold Despite the property's location potentially appealing for a buy-and-hold strategy, its listing price of €850,000 stands well above the fair value of €665,318, marking it as overvalued. The yield of 2.4% and neighbourhood rating of 72/100 reflect a lack of compelling reasons to justify holding this investment at its current price point.
Economic and Tenant Instability Risk The economic and tenant stability scores of 70/100 indicate a moderate risk of fluctuations in rental income due to potential economic downturns or tenant turnover.
