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 258 m², built in 2000, energy rating B. Located on rua Arquitecto Guilherme Rebelo Andrade, 10, Algueirão-Mem Martins parish, Sintra municipality, Lisbon district. Noteworthy Features: The finished attic, featuring three Velux windows, offers a bright multifunctional space ideal for leisure or an office, enhancing the property's versatility considerably.
The valuation. The asking price of €565,000 is significantly below the fair value of €920,972, representing a discount of €355,972 (63.0%). This property is clearly underpriced in the current market. Buy-to-flip angle. With an estimated market value of €920,972, an investor could implement a resale strategy after minor renovations to enhance aesthetic appeal and realize capital gains. A focused upgrade on kitchen and bathroom finishes could yield substantial returns. Buy-to-let angle. The estimated rental income of €2,543 per month provides a gross yield of 5.4%, making this a viable option for long-term family rentals. The proximity to Lisbon enhances tenant demand for suburban living.
Fair value modelled at €920,972 from the area baseline, adjusted for condition and location. Asking €565,000 sits €355,972 (63.0%) below — the upside to fair value.
Asking €565,000 versus the rua Arquitecto Guilherme Rebelo Andrade, 10 area baseline of €737,622 (€2,859/m²) for a median-condition unit of this size — the gap before quality adjustments.
AI Condition Index 66/100 (Condition 68 · Materials 65 · Room dimensions 68). Below-median condition lowers fair value versus a renovated baseline unit.
Neighbourhood score 70/100 (Housing Market 70 · Amenities 65 · Economic 75 · Tenant Quality 68). Strong amenities and housing-market momentum support a premium to baseline.
rua Arquitecto Guilherme Rebelo Andrade, 10
Area baseline €737,622 + condition -€35,878 + location +€70,878 = modelled fair value of €920,972 (€3,570/m²), a €355,972 (63.0%) gap versus the €565,000 asking price.
| Reference | Status | Price | €/m² | vs subject | Condition | Location |
|---|---|---|---|---|---|---|
| rua Arquitecto Guilherme Rebelo Andrade, 10 | Subject | €565,000 | €2,190 | — | 68 | 70 |
| avenida das Pimenteiras | Active | €820,000 | €2,169 | 0.9% | 72 | 73 |
| Algueirão-Mem Martins · 261f13 | Active | €585,000 | €3,656 | 67.0% | 72 | 77 |
| rua Alves de Sá S / N | Active | €619,000 | €3,364 | 53.6% | 72 | 68 |
| Algueirão-Mem Martins · 024258 | Active | €699,000 | €3,679 | 68.0% | 75 | 69 |
| Median comp | €659,000 | €3,510 | 60.3% | 72 | 71 |
Family rental The property in Algueirão-Mem Martins is subvalorizada with a fair value of €920,972 compared to the listing price of €565,000, making it an advantageous choice for family rentals. The solid gross yield of 5.4% and the capacity to attract stable tenants in a suburban area enhance its appeal for long-term family occupancy. Long-term rental Investing in this property offers a prime opportunity for long-term rental income, given its significant 63.0% gap versus fair value. The approximately 66/100 condition rating and decent neighborhood score of 70/100 suggest it's well-positioned to attract reliable long-term tenants. Buy-and-hold This property represents a compelling buy-and-hold investment, given its substantial price undervaluation and potential for appreciation. The proximity to Lisbon and the current 5.4% yield indicate a favorable scenario for long-term capital growth and steady income generation.
Tenant turnover risk The tenant stability score of 68/100 indicates a relatively higher likelihood of tenant turnover, which could lead to increased vacancy rates and subsequent loss of rental income.
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