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, 1-bathroom apartment of 103 m², built in 1970, energy rating D. Located on rua Ferreira de Castro, Algueirão-Mem Martins parish, Sintra municipality, Lisbon district. Noteworthy Features: This apartment boasts a cozy fireplace and a closed balcony in the main living room, enhancing its family-friendly atmosphere and providing additional utility space.
The valuation. The asking price of €299,500 is significantly below the fair value of €378,289, making this property subpriced by €78,789 (26.3%). This presents a compelling investment opportunity.
Fair value modelled at €378,289 from the area baseline, adjusted for condition and location. Asking €299,500 sits €78,789 (26.3%) below — the upside to fair value.
Asking €299,500 versus the rua Ferreira de Castro area baseline of €353,702 (€3,434/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 68/100 (Condition 72 · Materials 65 · Room dimensions 72). Below-median condition lowers fair value versus a renovated baseline unit.
Neighbourhood score 75/100 (Housing Market 80 · Amenities 70 · Economic 80 · Tenant Quality 75). Strong amenities and housing-market momentum support a premium to baseline.
rua Ferreira de Castro
Area baseline €353,702 + condition -€10,783 + location +€35,370 = modelled fair value of €378,289 (€3,673/m²), a €78,789 (26.3%) gap versus the €299,500 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| rua Ferreira de Castro | Subject | €299,500 | €2,908 | — | 72 | 75 |
| rua Ferreira de Castro | Active | €299,500 | €2,852 | 1.9% | 70 | 72 |
| Rio de Mouro · 49b7cf | Active | €299,500 | €3,088 | 6.2% | 70 | 67 |
| Rio de Mouro · cfde0f | Active | €299,500 | €3,088 | 6.2% | 65 | 72 |
| rua Ferreira de Castro, 7 | Active | €299,500 | €2,995 | 3.0% | 62 | 66 |
| Median comp | €299,500 | €3,042 | 4.6% | 68 | 70 |
Long-term rental The 4-bed apartment in Algueirão-Mem Martins offers an appealing opportunity for long-term rental due to its strategic location, just on the outskirts of Lisbon, which benefits from Lisbon's economic dynamism. The current listing price presents a gap of 26.3% below fair value, suggesting potential for strong demand from stable tenants seeking a residential property in a well-connected area. Family rental With a spacious layout of 103m² and a neighborhood rating of 75/100, this apartment is ideally suited for families looking for a comfortable and accessible living environment. The attractive pricing, being 26.3% below the fair value, positions it as a viable option for families prioritizing space and proximity to urban amenities. Buy-and-hold Investing in this property aligns well with a buy-and-hold strategy, as it is currently listed significantly below fair value and is situated in a neighborhood rated at 75/100 for its community quality. Held over the long term, this investment can capitalize on the continued growth and development of the surrounding areas benefiting from Lisbon's economic expansion.
Economic Vulnerability The property could face economic instability due to its 80/100 economic stability score, indicating potential risks if market conditions worsen.**
