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 duplex of 187 m², built in 1999, energy rating E. Located Algueirão-Mem Martins parish, Sintra municipality, Lisbon district. This duplex features two separate entrances and panoramic views from multiple aspects, enhancing privacy and natural light throughout the home.
The valuation. The asking price of €390,000 is significantly below the fair value of €468,202, indicating a difference of €78,202 (16.7%). This property is therefore considered underpriced in the current market.
Fair value modelled at €468,202 from 6 comparable sales in the area. Asking €390,000 sits €78,202 (16.7%) below — the upside to fair value.
Asking €390,000 versus the Algueirão-Mem Martins, Sintra, Lisbon area baseline of €349,187 (€1,867/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 79/100 is above the parish average, lifting fair value versus a typical-condition unit.
Recent nearby listings price above the wider parish average — a hyper-local premium distinct from the parish baseline.
Base gap of €349,187, adjusted for condition and micro-location, gives a modelled fair value of €468,202 (€2,504/m²), a €78,202 (16.7%) gap versus the €390,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| Algueirão-Mem Martins · 831287 | Subject | €390,000 | €2,086 | — | 75 | 70 |
| rua Capitão Salgueiro Maia, 21 | Active | €495,000 | €2,230 | 6.9% | 75 | 71 |
| Algueirão-Mem Martins · 3df42d | Active | €429,000 | €2,093 | 0.3% | 70 | 70 |
| rua Capitão Salgueiro Maia | Active | €398,500 | €3,240 | 55.3% | 74 | 73 |
| Rio de Mouro · 82c83e | Active | €415,000 | €2,024 | 2.9% | 74 | 70 |
| Median comp | €422,000 | €2,162 | 3.6% | 74 | 71 |
Long-term rental This 4-bed duplex in Algueirão-Mem Martins presents a solid opportunity for long-term rental investments with its fair value exceeding the listing price by 16.7%. The area benefits from low crime rates and good schooling access, contributing to a stable tenant demand. Buy-and-hold Investors considering a buy-and-hold strategy can leverage the current listing price of €390,000 for this duplex, as it is undervalued compared to its fair market value of €468,202. With the economic stability in the Greater Lisbon area, this property is likely to appreciate over time, ensuring future returns. Family rental The property is suitable for family rental given its spacious layout and proximity to essential amenities, making it an attractive option for tenants seeking long-term living arrangements. Its favorable position within a safe neighborhood further enhances its appeal to families looking for quality housing options. Not ideal for luxury market Due to its current valuation, this property may not meet the standards typically associated with the luxury market, which demands higher quality finishes and locations. Investors should focus on strategies better aligned with its current positioning rather than pursuing luxury tenancies. Not ideal for short-term vacation rental The 0% gross yield indicates that short-term vacation rentals would not yield favorable returns in this property type, particularly given its suburban setting. Furthermore, the neighborhood's focus on family and long-term tenants detracts from its suitability for short-term tourism. Not ideal for student housing While the location offers good access to schooling, the property does not align well with student housing demand, as its features may not attract this demographic. Hence, it would be prudent to explore different rental strategies that cater to families or long-term tenants instead.
Tenant turnover risk The combination of a 70/100 Economic stability and a 70/100 Tenant stability indicates a moderate risk of tenant turnover, which could affect rental income consistency.
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