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Explainers, methodology deep-dives, and practical guides on Philippine property hazards. Written for the decisions that matter.
68 articles published
Zambales sits in Mt. Pinatubo's shadow, and the rivers that lahar carved in 1991 still carry that sediment today. A guide to flood, debris flow, storm surge, fault, and landslide risk for homebuyers in Olongapo, Subic, Iba, and the Zambales highlands.
Mandaluyong is central and convenient, but the Pasig River, the West Valley Fault, and liquefaction-prone soil are three things to check before you commit.
Caloocan City's two non-contiguous sections carry very different hazard profiles. South Caloocan sits low and flood-prone near Manila Bay; North Caloocan varies by barangay. Here is what to check before you commit.
Valenzuela City sits on a low, flat river plain just north of Metro Manila, and large parts of it flood every rainy season. Here is what the hazard maps show, and what to check before you buy.
A hazard map screens for area-wide risk. A geotechnical survey tests the specific soil under your lot. Here is what each one tells you, when banks require a geotech investigation, and how to use both tools in the right order.
Naga City sits on the Bicol River flood plain and typhoon corridor. Before buying a house or lot in Camarines Sur, check flood zones, landslide risk, and waterways first.
Cagayan Province and Tuguegarao City sit on the Cagayan River in a typhoon-heavy corridor. Here is what homebuyers need to check about flood risk, waterways, and elevation before committing.
Quezon Province is not Quezon City. The province's Pacific coast, river lowlands, and Sierra Madre foothills each carry a different hazard profile. Here is what to check before you buy.
Parañaque sits along Manila Bay and a network of rivers, giving it flood, storm surge, and liquefaction exposure that a dry-season visit will not reveal. Check these hazards before you commit to a purchase.
Tacloban sits at the head of San Pedro Bay. Before buying property here, understand the storm surge, flood, landslide, and fault hazards that shape this city.
The City of Manila sits between Manila Bay and the Pasig River. Parts of the city face flood, storm surge, and liquefaction exposure that a unit price or broker presentation will not mention.
July to October is typhoon season in the Philippines. If you are house-hunting right now, the rains are running a live test on every lot in the country. Here is how to read what you see and pair it with hazard map data.
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© 2026 CheckHazard. Hazard data: UP NOAH Center/DOST, PHIVOLCS/GEM, OpenStreetMap contributors, PSA NAMRIA. CheckHazard does not replace a professional geotechnical or engineering survey.
