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, 4-bathroom house of 136 m², built in 2020. Located Santo Isidoro parish, Mafra municipality, Lisbon district. Noteworthy Features: The property boasts a large, professionally landscaped garden with a saltwater pool and electric cover, enhancing both relaxation and outdoor entertainment opportunities.
The valuation. The asking price of €790,000 reflects a significant premium over the fair value of €301,503, indicating that this property is overpriced by €488,497 (61.8%).
Fair value modelled at €301,503 from the area baseline, adjusted for condition and location. Asking €790,000 sits €488,497 (61.8%) above — overpriced versus fair value.
Asking €790,000 versus the Santo Isidoro, Mafra, Lisbon area baseline of €520,064 (€3,824/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 84/100 (Condition 80 · Materials 89 · Room dimensions 80). Above-median finish quality lifts fair value versus a baseline unit needing CapEx.
Neighbourhood score 64/100 (Housing Market 60 · Amenities 65 · Economic 55 · Tenant Quality 70). Strong amenities and housing-market momentum support a premium to baseline.
Santo Isidoro, Mafra, Lisbon
Area baseline €520,064 + condition +€17,000 + location +€15,087 = modelled fair value of €301,503 (€2,217/m²), a €488,497 (61.8%) gap versus the €790,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| Santo Isidoro · 49b8b6 | Subject | €790,000 | €5,809 | — | 80 | 64 |
| Santo Isidoro · cfe22f | Active | €1,300,000 | €3,988 | 31.4% | 84 | 58 |
| Santo Isidoro · 4b9686 | Active | €850,000 | €2,648 | 54.4% | 80 | 57 |
| Santo Isidoro · f36590 | Active | €650,000 | €3,171 | 45.4% | 80 | 58 |
| Santo Isidoro · ba5b8b | Active | €1,150,000 | €9,664 | 66.4% | — | 47 |
| Median comp | €1,000,000 | €3,580 | 38.4% | 80 | 58 |
Long-term rental The property has a listing price of €790,000, which is significantly above its fair value of €301,503, indicating it is overpriced. This mismatch suggests that the potential for reliable long-term rental income may not justify the high acquisition cost, yielding only 3.2% gross. Family rental While the property is positioned well for family rental given its size and condition rating of 84/100, the steep price of €790,000 compared to a fair value of €301,503 indicates that it is overpriced. Families seeking rental options in a moderately urbanized area may be deterred by the 61.8% gap against fair value. Value-add renovation The current asking price of €790,000 overshadows the fair value of €301,503, labeling the property as overpriced despite its reasonable condition score of 84/100. Engaging in a value-add renovation strategy would require careful consideration, as the significant price gap limits the potential return on investment potential for such efforts.
Economic Vulnerability The property has a moderate economic stability score of 55/100, indicating potential risks in maintaining consistent rental income due to economic fluctuations.
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