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.
3-bedroom, 2-bathroom duplex of 110 m², built in 2000. Located Algueirão-Mem Martins parish, Sintra municipality, Lisbon district. Noteworthy Features: This duplex includes a cozy fireplace in the living room, enhancing its appeal as a warm gathering space, along with a well-appointed kitchen featuring quality stone countertops.
The valuation. The asking price of €685,000 is significantly above the calculated fair value of €422,427, resulting in an overpriced status of €262,573 (62.2%). This suggests that potential buyers should approach with caution. Buy-to-flip angle. Given its high asking price, the buy-to-flip strategy may not be viable in the current market context, especially considering the €685,000 target versus the potential resale values. A substantial markup would be necessary for profitability. Buy-to-let angle. With an estimated gross yield of 1.9% from a potential rental income of €1,085/month, investing for long-term rental remains a low-return strategy. Prospective landlords should carefully evaluate the cash flow before making a commitment.
Fair value modelled at €422,427 from 6 comparable sales in the area. Asking €685,000 sits €262,573 (62.2%) above — overpriced versus fair value.
Asking €685,000 versus the Algueirão-Mem Martins, Sintra, Lisbon area baseline of €361,236 (€3,284/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 75/100 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 €361,236, adjusted for condition and micro-location, gives a modelled fair value of €422,427 (€3,840/m²), a €262,573 (62.2%) gap versus the €685,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| Algueirão-Mem Martins · 2ce173 | Subject | €685,000 | €6,227 | — | 65 | 71 |
| Rio de Mouro · e554fd | Active | €350,000 | €3,431 | 44.9% | 78 | 74 |
| rua Manuel de Arriaga | Active | €399,900 | €3,883 | 37.7% | 72 | 72 |
| rua do Alecrim | Active | €320,000 | €3,810 | 38.8% | 72 | 68 |
| Rio de Mouro · 874fd7 | Active | €432,500 | €4,505 | 27.7% | 72 | 75 |
| Median comp | €374,950 | €3,847 | 38.2% | 72 | 73 |
Long-term rental The property at €685,000 is significantly overpriced compared to its fair value of €422,427, resulting in a 62.2% gap that presents substantial risk for long-term rental investors. With a gross yield of only 1.9%, the return on investment does not justify the high acquisition cost. Family rental Given the steep pricing of €685,000 against the fair value of €422,427, families looking for rental opportunities in this area may find better options elsewhere. The property’s condition rating of 75/100 does not sufficiently enhance its appeal in light of the considerable financial outlay required. Buy-and-hold Investing in this duplex for a buy-and-hold strategy appears unwise, as its current listing price of €685,000 exceeds the fair value of €422,427 by a staggering 62.2%. Without a stronger yield than 1.9%, the long-term appreciation potential does not compensate for the inflated purchase price.
Economic Exposure: With an economic stability score of 75/100, there is a moderate risk of economic downturn affecting property value, especially if tenant stability, rated at 70/100, does not attract long-term residents who can ensure steady rental income.
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Comparables, condition and location workings, yield and time-to-sell. Written up and emailed to you.
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