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.
3-bedroom, 2-bathroom country_house of 206 m², energy rating F. Located on rua da Calçada, Santo Isidoro parish, Mafra municipality, Lisbon district. Noteworthy Features: The property includes an exterior storage area for gas bottles and a charming two-faced stone sundial, enhancing its rustic appeal and functionality in the garden.
The valuation. The asking price of €390,000 sits below the fair value of €422,754, marking a difference of €32,754 (8.4%). This property is therefore considered underpriced.
Fair value modelled at €422,754 from the area baseline, adjusted for condition and location. Asking €390,000 sits €32,754 (8.4%) below — the upside to fair value.
Asking €390,000 versus the rua da Calçada area baseline of €684,332 (€3,322/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 76/100 (Condition 74 · Materials 78 · Room dimensions 76). Above-median finish quality lifts fair value versus a baseline unit needing CapEx.
Neighbourhood score 58/100 (Housing Market 50 · Amenities 55 · Economic 60 · Tenant Quality 60). Strong amenities and housing-market momentum support a premium to baseline.
rua da Calçada
Area baseline €684,332 + condition +€1,609 + location +€13,059 = modelled fair value of €422,754 (€2,052/m²), a €32,754 (8.4%) gap versus the €390,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| rua da Calçada | Subject | €390,000 | €1,893 | — | 74 | 58 |
| rua do Vale Caeiro, 3 | Active | €560,000 | €2,569 | 35.7% | 85 | 53 |
| Ericeira · 0dcd6d | Active | €560,000 | €2,995 | 58.2% | 80 | 59 |
| rua do Vale Caeiro, 3 | Active | €560,000 | €2,569 | 35.7% | 80 | 52 |
| rua António Casal Ribeiro, 5 | Active | €695,000 | €3,062 | 61.7% | 72 | 61 |
| Median comp | €560,000 | €2,782 | 46.9% | 80 | 56 |
Long-term rental The property in Santo Isidoro presents an attractive opportunity for long-term rental investors, boasting a solid gross yield of 6%. With a fair value assessed at €422,754, the listing price of €390,000 indicates a healthy gap of 8.4% below fair value. Buy-and-hold Investing in this property for a buy-and-hold strategy aligns well with the current market dynamics, given its subvalorização status and consistent yield potential. The solid condition rating of 76/100 ensures that the property can provide steady appreciation over time, aided by its 6% gross rental yield. Family rental The 3-bed country house in Santo Isidoro is well-suited for family rental, particularly given its spacious layout and proximity to Lisbon. The neighborhood offers a relatively stable environment, despite its lower score of 58/100 in amenities, making it appealing to families prioritizing safety and comfort over urban conveniences.
Economic-tenant instability risk: With both economic and tenant stability scores at 60/100, there is a substantial risk of fluctuating income and potential vacancy issues affecting overall property profitability.
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Comparables, condition and location workings, yield and time-to-sell. Written up and emailed to you.
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