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, 3-bathroom duplex of 202 m², built in 2002, energy rating C. Located on avenida Castelhana, Cascais e Estoril parish, Cascais municipality, Lisbon district. Noteworthy Feature: The duplex includes a unique integrated attic space with a Velux window, providing ample natural light and offering charming sea views, enhancing the overall living experience.
The valuation. The asking price of €1,250,000 is €181,376 or 14.5% above the fair value of €1,068,624, making the property overpriced and not a good investment choice. Buy-to-flip angle. A buy-and-flip strategy may not yield attractive returns due to the overpriced listing, requiring significant resale appreciation to realize a profit. Buy-to-let angle. The estimated monthly rental income of €2,292 results in a gross yield of just 2.2%, suggesting limited cash flow potential for long-term rental strategies.
Fair value modelled at €1,068,624 from the area baseline, adjusted for condition and location. Asking €1,250,000 sits €181,376 (14.5%) above — overpriced versus fair value.
Asking €1,250,000 versus the avenida Castelhana area baseline of €999,698 (€4,949/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 75/100 (Condition 72 · Materials 79 · Room dimensions 75). Above-median finish quality lifts fair value versus a baseline unit needing CapEx.
Neighbourhood score 67/100 (Housing Market 70 · Amenities 60 · Economic 75 · Tenant Quality 65). Strong amenities and housing-market momentum support a premium to baseline.
avenida Castelhana
Area baseline €999,698 + condition +€947 + location +€67,979 = modelled fair value of €1,068,624 (€5,290/m²), a €181,376 (14.5%) gap versus the €1,250,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| avenida Castelhana | Subject | €1,250,000 | €6,188 | — | 72 | 67 |
| Cascais e Estoril · b7b72d | Active | €595,000 | €7,000 | 13.1% | 70 | 65 |
| avenida Fausto de Figueiredo | Active | €960,000 | €6,358 | 2.7% | 75 | 69 |
| rua António Sérgio, 83 | Active | €495,000 | €5,000 | 19.2% | 75 | 71 |
| rua Alto do Moinho Velho, 64 | Active | €820,000 | €6,777 | 9.5% | 78 | 71 |
| Median comp | €707,500 | €6,568 | 6.1% | 75 | 70 |
Long-term rental Despite the property appealing as a long-term rental option with a potential gross yield of 2.2%, its current listing price of €1,250,000 exceeds the fair value of €1,068,624 by 14.5%, indicating it is overpriced. Given the neighbourhood's safety and amenities, securing long-term tenants at this price point may be challenging, limiting profitability. Family rental The prospect of renting this duplex to families is hindered by its overpriced listing, as it presents a gross yield of only 2.2%, significantly below optimal rental investment returns. Families typically seek value that reflects their needs and budgets, making this property less attractive given the €1,250,000 price tag. Buy-and-hold A buy-and-hold strategy may not be effective here, since the property is overpriced at €1,250,000 compared to the fair value of €1,068,624, creating a 14.5% gap that undermines long-term appreciation potential. With a gross yield of just 2.2% and a condition rating of 75/100, the investment does not align well with buy-and-hold criteria aimed at generating healthy returns over time.
Economic Vulnerability With an economic stability score of 75/100, the property may face risks stemming from potential downturns in the local economy, impacting rental demand and tenant retention given the lower tenant stability score of 65/100.
