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 509 m², built in 2022, energy rating B. Located on rua da Amoreira, 4, Santo Isidoro parish, Mafra municipality, Lisbon district. The property features an outdoor kitchen ideally suited for entertaining, along with a basement atelier that offers flexible space for creative projects or a home office.
The valuation. The asking price of €850,000 sits €187,642 (22.1%) below its fair value of €1,037,642, indicating a solid opportunity for potential buyers aiming for long-term gains. This property is therefore considered underpriced.
Fair value modelled at €1,037,642 from the area baseline, adjusted for condition and location. Asking €850,000 sits €187,642 (22.1%) below — the upside to fair value.
Asking €850,000 versus the rua da Amoreira, 4 area baseline of €1,008,329 (€1,981/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 80/100 (Condition 75 · Materials 84 · Room dimensions 80). Above-median finish quality lifts fair value versus a baseline unit needing CapEx.
Neighbourhood score 48/100 (Housing Market 50 · Amenities 50 · Economic 45 · Tenant Quality 45). Softer demand indicators apply a discount to baseline.
rua da Amoreira, 4
Area baseline €1,008,329 + condition +€37,380 + location -€8,067 = modelled fair value of €1,037,642 (€2,039/m²), a €187,642 (22.1%) gap versus the €850,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| rua da Amoreira, 4 | Subject | €850,000 | €1,670 | — | 75 | 48 |
| Santo Isidoro · 4b94ee | Active | €850,000 | €2,196 | 31.5% | 82 | 57 |
| rua Domingos José Ferreira | Active | €790,000 | €2,358 | 41.2% | 83 | 57 |
| Santo Isidoro · f36590 | Active | €650,000 | €3,171 | 89.9% | 80 | 58 |
| Ericeira · 1e6584 | Active | €749,000 | €1,395 | 16.5% | 70 | 62 |
| Median comp | €769,500 | €2,277 | 36.4% | 81 | 58 |
Long-term rental This property, priced at €850,000, presents an opportunity for long-term rental investors given its fair value of €1,037,642, indicating a 22.1% gap versus market expectations. Despite a moderate gross yield of 3.5%, the property's condition score of 80/100 suggests it will attract quality tenants in a low-crime area. Buy-and-hold With a fair value significantly higher than the listing price, this 4-bed house in Santo Isidoro is well-positioned for appreciation over time as demand stabilizes in peripheral areas. The 48/100 neighborhood quality indicates room for improvement, making it a suitable candidate for long-term investment strategies that capitalize on regional growth. Not ideal for short-term vacation rental The property’s characteristics and locality lead to a suboptimal fit for short-term vacation rentals, where higher returns are usually expected. Investors should note that the housing market in peripheral areas typically does not attract the necessary tourist traffic to justify a short-term rental model. Not ideal for luxury market Given the property’s location and the neighborhood's quality rating of 48/100, entering the luxury market would not align with the expected demand and investment profile. The current market dynamics suggest a focus on affordable housing rather than luxury offerings in this area.
Tenant turnover risk: With both economic and tenant stability scores at 45/100, this property may experience higher tenant turnover, leading to increased vacancy rates and associated costs.
