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.
8-bedroom, 7-bathroom palace of 1915 m², built in 1887, energy rating F. Located on rua Sintra, Santa Maria e São Miguel, São Martinho e São Pedro de Penaferrim parish, Sintra municipality, Lisbon district. This property features a meticulously restored 19th-century French palace with a botanical garden designed by Forestier, equestrian facilities including 30 stables, and stunning historical architectural details.
The valuation. The asking price of €8,500,000 significantly underpriced compared to the fair value of €16,002,657, representing a difference of €7,502,657 (46.9%). This makes the property an attractive investment opportunity. Buy-to-flip angle. With a potential resale strategy, significant value can be captured by enhancing the luxurious attributes of the 8-bed, 7-bath palace before listing it again in a high-demand market. Buy-to-let angle. Aiming for long-term rentals, this property can cater to affluent families seeking spacious accommodations, tapping into Greater Lisbon's housing demand and delivering steady rental income potential, despite a current gross yield of 0%.
Fair value modelled at €16,002,657 from 6 comparable sales in the area. Asking €8,500,000 sits €7,502,657 (46.9%) below — the upside to fair value.
Asking €8,500,000 versus the rua Sintra area baseline of €14,225,311 (€7,428/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 86/100 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 €14,225,311, adjusted for condition and micro-location, gives a modelled fair value of €16,002,657 (€8,356/m²), a €7,502,657 (46.9%) gap versus the €8,500,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| rua Sintra | Subject | €8,500,000 | €4,439 | — | 80 | 70 |
| Santa Maria e São Miguel, São Martinho e São Pedro de Penaferrim · 4a429c | Active | €10,200,000 | €16,639 | 274.9% | — | 64 |
| Santa Maria e São Miguel, São Martinho e São Pedro de Penaferrim · 956ba7 | Active | €4,000,000 | €3,155 | 28.9% | 65 | 72 |
| Santa Maria e São Miguel, São Martinho e São Pedro de Penaferrim · 4d4246 | Active | €4,000,000 | €3,155 | 28.9% | 64 | 70 |
| Santa Maria e São Miguel, São Martinho e São Pedro de Penaferrim · 6ebbd8 | Active | €4,850,000 | €11,975 | 169.8% | 79 | 74 |
| Median comp | €4,425,000 | €7,565 | 70.4% | 65 | 71 |
Long-term rental Given the property’s large size and the fair value gap of 46.9%, it represents an excellent long-term rental opportunity in a suburban area of Greater Lisbon. With a condition rating of 86/100, this palace can attract quality tenants seeking spacious accommodations in a safe environment. Family rental The property is well-suited for family rentals, capitalizing on the suburban characteristics of the neighbourhood and its strong school systems. Its large format makes it ideal for families seeking ample living space, which can help generate steady demand in this market. Buy-and-hold Investing in this property as a buy-and-hold strategy could yield substantial returns given the 46.9% undervaluation against fair market value. The steady demand for long-term housing in this area combined with the growing influence of Greater Lisbon makes it a promising asset for future appreciation.
Tenant turnover risk The economic stability score of 70 and tenant stability score of 70 indicate a moderate risk of tenant turnover, which could lead to potential gaps in rental income and increased leasing costs.
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Comparables, condition and location workings, yield and time-to-sell. Written up and emailed to you.
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