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 house of 180 m², built in 2002, energy rating B. Located on autoestrada A21, Carvoeira parish, Mafra municipality, Lisbon district. Noteworthy Features: The property boasts a large terrace with a wood oven and grill, providing an ideal space for outdoor entertaining, complemented by views of the Serra de Sintra. Localização e Entorno: A localização é privilegiada com fácil acesso à A21 e à A8, facilitando deslocações para Lisboa e outras regiões.
The valuation. The asking price of €800,000 sits significantly above the fair value of €541,668, resulting in a disparity of €258,332 (47.7%). This property is deemed overpriced, making it a poor investment choice for potential buyers.
Fair value modelled at €541,668 from 4 comparable sales in the area. Asking €800,000 sits €258,332 (47.7%) above — overpriced versus fair value.
Asking €800,000 versus the autoestrada A21 area baseline of €553,089 (€3,073/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 78/100 is above the parish average, lifting fair value versus a typical-condition unit.
Recent nearby listings price below the wider parish average — a hyper-local discount distinct from the parish baseline.
Base gap of €553,089, adjusted for condition and micro-location, gives a modelled fair value of €541,668 (€3,009/m²), a €258,332 (47.7%) gap versus the €800,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| autoestrada A21 | Subject | €800,000 | €4,444 | — | 74 | 57 |
| Ericeira · b7c1c9 | Active | €1,160,000 | €2,982 | 32.9% | 85 | 59 |
| Ericeira · 96c60b | Active | €945,000 | €3,098 | 30.3% | — | 65 |
| rua Joaquim Almeida Marrão | Active | €920,000 | €2,329 | 47.6% | 75 | 59 |
| Ericeira · ba3b4a | Active | €665,000 | €3,037 | 31.7% | 80 | 56 |
| Median comp | €932,500 | €3,010 | 32.3% | 80 | 59 |
Buy-and-hold This property is overpriced, presenting a significant gap of 47.7% between the listing price and its fair value, leading to potential long-term challenges for appreciation. With a gross yield of only 3.3%, the investment may struggle to deliver robust returns over time. Long-term rental The current valuation of €800,000 is not justified when the fair value stands at €541,668, indicating a considerable risk in the long-term rental strategy. The property's condition rating of 78/100 may not sufficiently offset the overpriced listing, making it less attractive for sustained rental income. Family rental The property is overpriced and the notable 47.7% gap from fair value suggests families might be deterred from pursuing this option due to cost concerns. Coupled with a mediocre neighbourhood rating of 57/100, this property may not appeal to those seeking suitable family accommodations.
Economic Vulnerability The property faces potential risks due to a low economic stability score of 50/100, indicating susceptibility to market fluctuations.**
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