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.
2-bedroom, 2-bathroom apartment of 112 m², built in 2004, energy rating D. Located on rua Água-Marinha, 174, São Domingos de Rana parish, Cascais municipality, Lisbon district. Noteworthy Features: This apartment offers exclusive access to a rooftop storage room with natural light and a prime location near Saint Dominic's International School and multiple business hubs.
The valuation. The asking price of €488,000 is significantly below the fair value of €621,542, representing an undervaluation of €133,542 (21.5%). This creates an attractive buying opportunity for potential investors.
Fair value modelled at €621,542 from 6 comparable sales in the area. Asking €488,000 sits €133,542 (21.5%) below — the upside to fair value.
Asking €488,000 versus the rua Água-Marinha, 174 area baseline of €537,283 (€4,797/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 77/100 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 €537,283, adjusted for condition and micro-location, gives a modelled fair value of €621,542 (€5,549/m²), a €133,542 (21.5%) gap versus the €488,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| rua Água-Marinha, 174 | Subject | €488,000 | €4,357 | — | 75 | 71 |
| Carcavelos e Parede · f366a7 | Active | €670,000 | €5,877 | 34.9% | 80 | 70 |
| rua Paul Harris, 5 | Active | €615,000 | €5,212 | 19.6% | 80 | 73 |
| Carcavelos e Parede · 4a45b1 | Active | €479,900 | €5,332 | 22.4% | 76 | 71 |
| rua Doutor José da Cunha, 11 | Active | €620,000 | €5,487 | 25.9% | 78 | 74 |
| Median comp | €617,500 | €5,410 | 24.2% | 79 | 72 |
Long-term rental The property offers a competitive gross yield of 3.5%, making it an attractive option for long-term rental investors. Given the neighbourhood's strong tenant quality and economic factors, this investment is likely to yield reliable returns over time. Family rental With a generous 112m² size and proximity to transport links to Lisbon, this apartment is perfectly suited for families seeking spacious living arrangements. The 71/100 neighbourhood rating further supports its appeal, making it a stable choice for family rentals in a growing area. Buy-and-hold While currently listed at €488,000, the property holds a fair value of €621,542, indicating a significant potential upside for buy-and-hold investors. Capitalizing on the long-term economic growth in Greater Lisbon, this strategy positions investors to benefit from appreciation in property value over time.
Economic and Tenant Stability Concerns The property, with both economic and tenant stability scores at 70/100, faces a medium risk of fluctuations in rental income and tenant turnover affecting overall 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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