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 184 m², built in 1976, energy rating C. Located on rua Alves de Sá S / N, Algueirão-Mem Martins parish, Sintra municipality, Lisbon district. Noteworthy Features: This renovated semi-detached house boasts a cozy garden and a private pool, ideal for family leisure and outdoor entertaining in a serene setting.
The valuation. The asking price of €619,000 sits below the fair value of €675,912, representing a discount of €56,912 (9.2%). This indicates that the property is underpriced in the current market.
Fair value modelled at €675,912 from the area baseline, adjusted for condition and location. Asking €619,000 sits €56,912 (9.2%) below — the upside to fair value.
Asking €619,000 versus the rua Alves de Sá S / N area baseline of €631,856 (€3,434/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 75/100 (Condition 72 · Materials 76 · Room dimensions 78). Below-median condition lowers fair value versus a renovated baseline unit.
Neighbourhood score 68/100 (Housing Market 70 · Amenities 65 · Economic 75 · Tenant Quality 60). Strong amenities and housing-market momentum support a premium to baseline.
rua Alves de Sá S / N
Area baseline €631,856 + condition -€1,438 + location +€45,494 = modelled fair value of €675,912 (€3,673/m²), a €56,912 (9.2%) gap versus the €619,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| rua Alves de Sá S / N | Subject | €619,000 | €3,364 | — | 72 | 68 |
| Santa Maria e São Miguel, São Martinho e São Pedro de Penaferrim · 001750 | Active | €935,000 | €2,541 | 24.5% | 70 | 72 |
| Algueirão-Mem Martins · 6fbe09 | Active | €540,000 | €4,122 | 22.5% | 73 | 71 |
| Algueirão-Mem Martins · 024258 | Active | €699,000 | €3,679 | 9.4% | 75 | 69 |
| Algueirão-Mem Martins · 957087 | Active | €540,000 | €4,122 | 22.5% | 75 | 72 |
| Median comp | €619,500 | €3,901 | 15.9% | 74 | 72 |
Long-term rental The property offers a competitive yield of 3.6% gross, making it an attractive option for long-term investors. With a fair value of €675,912, the property is subvalued at €619,000, suggesting a good entry point for generating steady rental income. Family rental Given the suburban characteristics of Algueirão-Mem Martins, this property is well-suited for families seeking access to transport links and local amenities. Its favorable fair value relative to the listing price indicates potential for consistent demand from family renters, enhancing the revenue prospects. Buy-and-hold The strong fair value of €675,912 compared to the listing price of €619,000 underscores the potential for long-term appreciation in property value. Investors adopting a buy-and-hold strategy can benefit from the area's solid tenant quality and ongoing economic growth in the region.
Potential Tenant Turnover Risk The tenant stability score of 60/100 indicates a higher likelihood of tenant turnover, which could lead to vacancies and loss of rental income.
