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.
5-bedroom, 6-bathroom house of 915 m², built in 2005, energy rating D. Located on rua Serrações, Santa Maria e São Miguel, São Martinho e São Pedro de Penaferrim parish, Sintra municipality, Lisbon district. The walled 12,000m² plot offers privacy and panoramic views of Pena Palace, Castelo dos Mouros, Monserrate and the Sintra mountains.
The fair value is €1,350,000 and the asking price is €4,450,000. The property is outside the range our automatic models cover reliably; an analyst review is needed, so no verdict is given. Confidence in the fair value is medium; a full report is available on request.
The Transaction model uses real transaction data from Santa Maria e São Miguel, São Martinho e São Pedro de Penaferrim, including 79 recorded sales in the four quarters to Q2 2026. The Adjusted asking-price model uses current listings, with asking prices adjusted to sale level. The models are combined in a weighted blend: 70% Transaction model and 30% Adjusted asking-price model. No conservative adjustments for area, non-living area composition or cost to cure were applied; transaction micro-location data is unavailable for this address. Fair value: €1,350,000; asking price: €4,450,000; confidence: medium. Report on Request — outside the range our automatic models cover reliably; an analyst review is needed. A full report on this property is available on request.
Gross yield 2.5% (before costs)
No specific strategy stands out for this property.
For this 5-bedroom, 915m² house in Santa Maria e São Miguel, São Martinho e São Pedro de Penaferrim, weigh the asking price of €4,450,000 separately from the fair value of €1,350,000; no verdict is given because the property is outside the range the automatic models cover reliably and an analyst review is needed (Report on Request). The condition score is 81/100, the neighbourhood score is 50/100, and the gross yield is 2.5%.
Indicative, before costs, vacancy and management. Not investment advice.
Economic and tenant stability Economic and tenant stability are both scored at 50/100, indicating risk in both areas. Data-quality concerns The data-quality check is blocked because the stated area is implausible, property listings disagree, and the price per m² is impossible. Fair value uncertainty The fair value is €1,350,000 with medium confidence; the property is outside the range our automatic models cover reliably, so an analyst review is needed.
Findings: 3
Confirmed findings from our checks of this listing. They inform; they do not change the valuation.
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Fair value shown, but its gap to the asking price is outside the range our automatic models cover reliably. See the note below.
Models 3.4.3 (Data quality v3 · Valuation v4.2 · Strategy v3.1)
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Comparables, condition and location workings, yield and time-to-sell. Written up and emailed to you.
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