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.
1-bedroom, 1-bathroom penthouse of 50 m² on the 2nd floor, energy rating C. Located on rua de Santa Marta, 49, Santo António parish, Lisbon municipality, Lisbon district. This penthouse features a spacious terrace with panoramic city views, enhancing the living experience and providing an ideal space for outdoor relaxation.
The valuation. The asking price of €298,000 is considerably below the fair value of €395,229, representing a discount of €97,229 (24.6%). This property can be considered subpriced relative to its market potential.
Fair value modelled at €395,229 from 6 comparable sales in the area. Asking €298,000 sits €97,229 (24.6%) below — the upside to fair value.
Asking €298,000 versus the rua de Santa Marta, 49 area baseline of €373,890 (€7,478/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 85/100 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 €373,890, adjusted for condition and micro-location, gives a modelled fair value of €395,229 (€7,905/m²), a €97,229 (24.6%) gap versus the €298,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| rua de Santa Marta, 49 | Subject | €298,000 | €5,960 | — | 88 | 88 |
| rua Conceição da Glória | Active | €578,000 | €13,136 | 120.4% | 80 | 82 |
| rua do Benformoso | Active | €306,000 | €5,774 | 3.1% | 80 | 82 |
| rua Newton | Active | €349,000 | €7,587 | 27.3% | 75 | 87 |
| rua Newton, 12 | Active | €370,000 | €8,222 | 38.0% | 78 | 82 |
| Median comp | €359,500 | €7,905 | 32.6% | 79 | 82 |
Long-term rental The 1-bed penthouse in Santo António, priced at €298,000, represents a compelling opportunity in a robust rental market with a gross yield of 4.9%. With a fair value of €395,229, this property is clearly underpriced, making it an attractive option for long-term investment. Short-term vacation rental Given its proximity to central Lisbon amenities and a high neighbourhood quality rating of 88/100, this penthouse could generate strong short-term rental income, benefitting from the city's tourism appeal. At €298,000, priced below its fair value of €395,229, this property stands to offer substantial returns for short-term rental operators. Buy-and-hold This property is an ideal buy-and-hold investment with significant upside, as its market price of €298,000 is considerably lower than the fair value of €395,229, indicating room for appreciation. The combination of a 4.9% gross yield and a strong condition rating of 85/100 positions it well for long-term wealth growth in the evolving Lisbon property market.
Economic fluctuation risk The high economic stability score of 90 suggests a lower likelihood of adverse economic shifts, but with a tenant stability score of 80, there remains a risk of variable rental income due to potential tenant turnover impacting cash flow by up to 20%.
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