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, 3-bathroom penthouse of 220 m², built in 2000. Located on rua das Palmeiras, Carcavelos e Parede parish, Cascais municipality, Lisbon district. This penthouse features a unique attic with independent entrance, offering not only additional living space but also significant potential for rental income or guest privacy.
The valuation. The asking price of €850,000 is significantly below the fair value of €1,178,175, creating a notable opportunity for investment with a difference of €328,175 (38.6%). Verdict: underpriced. Buy-to-flip angle. The penthouse's attractive features and location allow for a potential buy-to-flip strategy, targeting a renovation to resell at a premium in the competitive Cascais market. Buy-to-let angle. With an estimated monthly rental income of €3,258, the property offers a gross yield of 4.6%, making it an appealing option for long-term rental investors seeking stability in the Greater Lisbon area.
Fair value modelled at €1,178,175 from the area baseline, adjusted for condition and location. Asking €850,000 sits €328,175 (38.6%) below — the upside to fair value.
Asking €850,000 versus the rua das Palmeiras area baseline of €1,088,780 (€4,949/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 74/100 (Condition 75 · Materials 77 · Room dimensions 73). Below-median condition lowers fair value versus a renovated baseline unit.
Neighbourhood score 71/100 (Housing Market 75 · Amenities 70 · Economic 80 · Tenant Quality 65). Strong amenities and housing-market momentum support a premium to baseline.
rua das Palmeiras
Area baseline €1,088,780 + condition -€2,062 + location +€91,458 = modelled fair value of €1,178,175 (€5,355/m²), a €328,175 (38.6%) gap versus the €850,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| rua das Palmeiras | Subject | €850,000 | €3,864 | — | 75 | 71 |
| Carcavelos e Parede · 4b9961 | Active | €780,000 | €3,277 | 15.2% | 75 | 73 |
| São Domingos de Rana · 82c879 | Active | €435,000 | €3,625 | 6.2% | 75 | 79 |
| Carcavelos e Parede · 937294 | Active | €450,000 | €4,737 | 22.6% | 74 | 68 |
| rua Dia Mundial da Criança S / N | Active | €710,000 | €3,550 | 8.1% | 76 | 69 |
| Median comp | €580,000 | €3,588 | 7.1% | 75 | 71 |
Long-term rental This 4-bed penthouse in Carcavelos e Parede, priced at €850,000, is underpriced relative to its fair value of €1,178,175, presenting a 38.6% gap that indicates strong potential for appreciation. With a gross yield of 4.6%, this investment can provide steady cash flow, appealing particularly to long-term tenants who value spacious living close to Lisbon. Buy-and-hold Given the significant gap between the listing price and the fair value of €1,178,175, acquiring this property now provides an opportunity for substantial capital gains over time. The combination of a decent yield of 4.6% and a solid condition rating of 74/100 makes this penthouse an attractive asset for a buy-and-hold strategy. Family rental With its spacious layout and suburban location, this penthouse is well-suited for family rentals, particularly given its proximity to Lisbon's amenities. The property is underpriced, allowing for potential rental income that can take advantage of the area's demand for family-friendly housing options, despite the neighbourhood rating of 71/100. Short-term rental This property is not ideal for short-term rentals due to the suburban setting and moderate neighbourhood scores, which may not attract transient guests looking for vibrant hotspots. The valuation indicates the property is underpriced, but its characteristics limit its attractiveness for short-term rental strategies. Luxury market As this penthouse does not align with luxury market standards and is underpriced in terms of fair value, it lacks the prestige or high-end finishes typically sought after by affluent buyers. Moreover, despite its notable size, the neighbourhood ratings suggest it may not meet the expectations of luxury clientele looking for exclusivity in a premium location.
Tenant turnover risk The tenant stability score of 65/100 indicates a higher likelihood of tenant turnover, which could disrupt cash flow and increase vacancy rates.
