Flood and Hillslope Risk Before You Buy in Malaysia: What You Can Actually Check
Any honest flood prone area check in Malaysia has to start with a negative: there is no public, address-searchable flood hazard map for Malaysia. The official portal, Public InfoBanjir, run by the Department of Irrigation and Drainage (Jabatan Pengairan dan Saliran, JPS/DID), gives real-time rainfall and river water level only – no historical layer, no hazard layer. Hazard maps do exist, but they travel to the One Stop Centre (OSC) and the state technical committees at approval stage, not to the public. So this guide is a method, not a lookup: the JPS annual flood report for district-level history, the local authority and its local plan, the hillslope classification, and the insurance market. And on insurance, two facts most articles get wrong: a basic fire policy does not cover flood, and a standard policy does not cover landslide or landslip either.
Short answer
Malaysia has no public, address-searchable flood hazard map – Public InfoBanjir carries real-time rainfall and water level only. Check indirectly instead: the JPS annual flood report for that district’s depth and duration, the local authority for zoning and any flood notation on the Rancangan Tempatan, the slope class for hillside land, then water marks on site. A basic fire policy covers fire and lightning only; flood and landslip are extensions.
Key numbers at a glance
| Public flood hazard map | Does not exist (re-checked 24 Sep 2026) |
|---|---|
| Public InfoBanjir shows | Real-time rainfall and water level; Normal / Alert / Warning / Danger |
| JPS annual flood report | Events by state and district, max duration and depth (869 events, 2020 edition) |
| PRAB warning programme | 38 major river basins, forecasts up to 7 days ahead |
| Local plan basis | Act 172 ss.12-13; draft open for inspection, min 4 weeks to object |
| Slope classes | Kelas I under 15 deg / II 15-25 / III 25 to under 35 / IV above 35 = none |
| Fire policy basic cover | Fire and lightning only; flood, subsidence and landslip are extensions (MSIG, 24 Sep 2026) |
| Landslip position | PIAM: standard policies exclude landslide and landslip (14 Nov 2025) |
Key points in 30 seconds
- There is no public flood hazard map you can search by address. Re-checked on 24 September 2026: Public InfoBanjir still shows only real-time rainfall and water level (Normal / Alert / Warning / Danger), with no historical and no hazard layer. Anyone telling you to “look up your address on the JPS flood map” is describing a tool that does not exist.
- The most useful free official history is the JPS annual flood report (Laporan Banjir Tahunan). The 2020 edition runs state by state across all 15 states and federal territories and logs each event with its date, district, rainfall intensity, maximum flood duration in hours and maximum flood depth in metres – 869 events nationally that year.
- The risk data is used, just not by you. On 22 October 2025 the Deputy Prime Minister said historical flood data and risk areas “have been channelled to the OSC and state technical committees”, and that new drainage must comply with MSMA. So the route for a buyer is to ask the local authority, not to search a portal.
- Hillslope risk does have a published classification. Slope Kelas I (under 15 degrees) to Kelas IV (above 35 degrees, no development allowed); elevation Tahap 1 (above 1,000 m, prohibited) to Tahap 3 (150-300 m, technical committee approval). Which class a lot falls in is a question with a definite answer.
- The insurance gap is the part people get wrong. A basic fire policy covers fire and lightning only; flood, storm and tempest and subsidence and landslip are extensions carrying additional premium (MSIG Malaysia, fire product page, accessed 24 Sep 2026). PIAM states that standard policies exclude landslide and landslip (14 Nov 2025).
- Flood history shows up in transaction volume before it shows up in price. EdgeProp’s analysis records Taman Sri Muda’s median subsale price falling from RM365,000 (2021) to RM340,000 (2022) while transactions fell from 23 to 6 (21 July 2026).
Is there an official flood map for a Malaysian address? No
The conclusion goes first, because too many guides get it wrong: as at 24 September 2026 there is no public, address-searchable flood hazard map for Malaysia. Not hard to find – not available to the public at all.
Hazard maps themselves exist. CIDB’s Construction Industry Standard for Flood Risk Assessment in Malaysia directs assessors to DID’s flood hazard maps for major river basins, alongside DID Hydrological Procedures HP 1 and HP 26 for design rainfall, METMalaysia rainfall records and NAHRIM climate-change factors, working to average recurrence intervals of 5, 10, 20, 50, 100 and 200 years. That standard does not say the maps are publicly available and gives no public access link.
So what follows is not a tool but a method: four independent lines of evidence, cross-checked. Four that agree are worth more than any single map. Four that disagree tell you to keep asking.
| Source | What it tells you | What it cannot tell you |
|---|---|---|
| Public InfoBanjir (JPS) | The current state of the nearest water-level and rainfall stations | History, hazard rating, or anything about your lot |
| JPS annual flood report | Flood events in that district in a given year, with maximum depth and duration | A specific road or a specific taman |
| Local authority / Rancangan Tempatan | Zoning, and whether the plan carries a flood-prone or physical-constraint notation | Nothing standardised – there is no national legend and no duty to mark it |
| Neighbours, management, insurance quotes | What actually happened on that street over the last five to ten years | An official record you can show a bank |
How to use Public InfoBanjir – and what it will not tell you
Public InfoBanjir (https://publicinfobanjir.water.gov.my/, English at ?lang=en) is run by the Department of Irrigation and Drainage (Jabatan Pengairan dan Saliran, JPS/DID).
- What it has: Map, Rainfall and Water Level pages plus a station summary. Water-level stations are classed Normal, Alert, Warning, Danger; rainfall runs from “No Rain” to “Very Heavy: >60mm”.
- What it does not have: a historical flood map, a flood-hazard or flood-prone layer, or any risk rating for a specific lot.
JPS also runs a Flood Forecasting and Warning Programme (PRAB) covering 38 major river basins, able to forecast up to seven days ahead. Read it for what it is: a warning system for a river basin, not a risk rating for a plot of land.
- Find the nearest water-level and rainfall stationsZoom the Map page to the area and note the one or two nearest stations and the river they sit on.
- Come back during the monsoonThe main exposure on the east coast and in the south is the northeast monsoon, roughly November to January. Check repeatedly through that window and you will see how readily that river moves into Alert and Warning.
- Keep the conclusion about the river, not the landStations describe river behaviour. Whether your lot floods depends on ground level, drainage, road height and upstream development – questions only a site visit and the local authority can answer.
- Check whether your state runs its own portalSelangor has Info Banjir JPS Selangor. No equivalent public Johor portal was verified as at 24 September 2026, so Johor buyers lean harder on the annual report and the local authority.
The expensive part is not the repair bill – it is the insurance gap. The fire policy your bank requires covers fire and lightning only, so without a flood extension and a subsidence-and-landslip extension, a flood or a slope failure pays nothing at all. Next is liquidity: EdgeProp’s figures show transactions in one flood-hit township falling from 23 to 6 in a year, which means fewer buyers and more negotiating room when it is your turn to sell. Ten minutes and two insurance quotes before you commit answers both.
Ask Louis directly
Send me the address or the project name and I will check the nearest JPS stations, the district's entries in the annual flood report, and tell you which council to ask about the local plan.
Send me the address and I will tell you which JPS annual report to open, which planning department to write to, and send you a site checklist for water marks and drainage.
What is in the JPS annual flood report (Laporan Banjir Tahunan)?
This is the most useful free official history a Malaysian buyer can get, and the least known. JPS publishes the Laporan Banjir Tahunan, ISSN 2785-910X.
Taking the 2020 edition, which was checked: an executive summary; a chapter for each of the 15 states and federal territories; and an appendix summarising flood occurrences by state. Each entry is an event record – date, location by district, rainfall intensity, maximum flood duration in hours and maximum flood depth in metres. That edition logged 869 flood events nationally (Sarawak highest at 225, W.P. Labuan lowest at 2) and cites an older national estimate of RM1.15 billion in annual flood losses.
What it does not contain: evacuee or evacuation-centre counts, per-event damage costings, and – in the portion checked – flood-affected-area maps.
How to read it: go to the state, find the district (daerah), and look at what was recorded over the last few years – the maximum depth and the maximum duration. The difference between 0.3 m and 1.5 m is the difference between a flooded car and a gutted ground floor. The difference between six hours and three days is the difference between cleaning up and moving out.
Hillslope risk: the classification a buyer can look up, and the part nobody can
Hillside and hill-foot homes carry a separate risk, and a wider insurance gap than flood (next section). The good news is that the planning classification is published, and “which class is this land in” is a question with a definite answer.
The governing document is JPBD’s (now PLANMalaysia’s) 2009 planning guideline for development in hill and highland areas. PLANMalaysia uploaded a current edition on 14 November 2025, but that file could not be opened this session, so I cannot guarantee the thresholds below were not revised. The table is the 2009 classification as published and applied by a state PLANMalaysia office.
| Class | Gradient | Development |
|---|---|---|
| Kelas I | below 15 degrees | permitted |
| Kelas II | 15-25 degrees | permitted |
| Kelas III | 25 to under 35 degrees | may be considered for low-impact recreation with no structures |
| Kelas IV | above 35 degrees | no development allowed |
- Elevation class (tahap ketinggian): Tahap 1, above 1,000 m – prohibited; Tahap 2, 300-1,000 m – prohibited except sustainable logging and low-impact ecotourism; Tahap 3, 150-300 m – permitted with technical committee approval.
- Technical agencies that must comment on a hill or highland application: JMG (Minerals and Geoscience), JKR, JPS and JAS (Environment).
- Caveat: hill land policy is a state matter and several states run their own highland committees, so not every state necessarily applies identical thresholds.
Your council is required to hold a slope inventory
KPKT’s Garis Panduan Pengurusan Cerun di Kawasan Pihak Berkuasa Tempatan, dated 22 February 2021, requires local authorities to hold information on slope ownership in their area; to issue notices to owners of slopes steeper than 25 degrees and more than 10 m high requiring inspection every five years; to set up a slope and retaining-wall inventory system; to build slope-engineering competency; and to ensure complete technical review at approval stage, with JMG named for geological assessment.
JMG's MyGEMS: it exists, and I cannot vouch for it
JMG runs a public geospatial portal, MyGEMS / MINGEOGIS (https://mygems.jmg.gov.my). JMG’s own announcement (12 November 2025) describes it as a national data bank for geospatial mineral and geoscience information, free to the public with no registration for open content, carrying nine thematic data clusters, one of which is geological hazards (bencana geologi), plus interactive maps, story maps, dashboards and a public disaster-reporting module.
Want to see what you can actually buy?
The rules are above; these are the actual homes. Each page lists the projects I am tracking, with published price ranges and the date each figure was checked. Tell me the area on WhatsApp and I will send the current list.
The insurance reality: fire policies exclude flood, standard policies exclude landslip
This is where most buyers are wrong, and where being wrong costs the most directly. The policy your bank requires on a mortgaged property is a fire policy – and its basic cover is far narrower than people assume.
| Policy | Basic cover | Flood | Landslip / subsidence |
|---|---|---|---|
| Fire (bank-required, the one most borrowers hold) | MSIG’s fire page: “the basic perils covered from a Fire policy are fire and lightning only” | Extension, additional premium | Extension (subsidence and landslip) |
| Houseowner (the building) | PIAM: flood, storm, earthquake etc. are part of standard coverage | Standard | PIAM: standard policies exclude landslide and landslip; a separate extension is needed |
| Householder (contents) | Same basis, covering contents rather than structure | Standard | As above |
The two sources, in their own words. MSIG Malaysia’s fire product page (accessed 24 September 2026) states that the basic perils are fire and lightning only, and lists flood, storm, tempest, subsidence and landslip and earthquake among the perils that can be added for additional premium. PIAM, the general insurance association, wrote on 14 November 2025 that “most standard policies exclude natural disasters unless specially extended to cover”, that houseowner and householder policies provide “flood, storm, earthquake, etc protection as part of [their] standard coverage”, and – in the same article – that standard policies exclude landslide and landslip, with homeowners in high-risk areas needing separate extensions.
What does the flood extension cost? PIAM’s own example is “as little as RM14 a month for a building insured for RM200,000”. That is an illustration, not a quotation – real premiums are priced by location and risk, which is precisely what makes them useful to a buyer (see the last section).
For scale: PIAM reported RM933.4 million in flood-related insured losses in 2024 (2023: RM755.4 million), of which RM372.2 million was housing – more than double the previous year. PIAM also notes that more than half of Malaysian households have no fire or home insurance at all.
For a strata parcel, the JMB or MC insures the whole building and the premium sits inside the service charge; your own renovation, fittings and contents are yours to insure. How this fits with MRTA and MLTA is in MRTA, MLTA and home insurance, and the charge mechanism is in maintenance charges and the sinking fund.
What to look for on site, and who to ask (water marks, thresholds, pump rooms, drains)
Once the three official lines are exhausted, the rest of the answer is on the ground. None of it needs permission – only that you show up and open your mouth.
Physical evidence you can see
- Water marks. Basement car park columns and skirtings, lift lobbies, the door frames of the substation and the pump room, the rust line at the bottom of a shop’s roller shutter. The height of the mark is the historical water level.
- Raised thresholds. A front door, garage or shopfront threshold that has clearly been built up, or a door frame with slots and bolt holes for a flood barrier.
- Equipment mounted high. Meter boxes, distribution boards, condenser units and water heaters installed unusually high; gensets and pump rooms built on plinths.
- Ground raised after the fact. A driveway, courtyard or corridor noticeably higher than the neighbour’s, or with an added layer of finish.
- Drainage. How wide are the drains (longkang) behind the house and along the road? Silted or choked with weeds? Is there a sump and a pump? Where does the rainwater actually go?
- Levels. Stand at the door: is your land above or below the road? Where is the low point of the whole taman? The low point floods first.
- On a hillside, also: cracks, seepage or bulging in retaining walls; weep holes that run all year; fresh fill on the slope above; diagonal cracks inside the house and doors or windows that have started to bind – signs of movement.
Ask about a specific date, never "does it flood here"
“Does it flood here?” invites a polite deflection. A date does not: “during the heavy rain at the end of last year, did this street flood? How high did it get?”
| Who | What to ask |
|---|---|
| Neighbours of five years or more | When it last flooded, how deep, how long it took to drain, whether anyone was evacuated |
| Management office / JMB / MC | Has the basement car park flooded; how often the pumps are replaced; whether any flood-proofing was installed; whether a special levy was raised for it; when the basement and facade waterproofing was last done |
| The coffee shop and the sundry shop at the corner | They have been on that street longest and have no stake in your transaction. This is the one I use most |
| Security guards and the refuse truck crew | Which roads become impassable in heavy rain, and which corner ponds first |
| Insurers | Take the address to two companies and ask for a flood-extension premium. An unusually high quote, or a refusal, is the market doing your risk assessment for you |
Should you buy a house that has flooded? Financing, premiums and resale
Financing
No published bank policy stating that flood history reduces the margin of finance or raises the rate could be found, so this article does not claim one. What can be said honestly is the mechanism: banks lend against valuation, and the valuer inspects the property. Water marks, post-flood patching, damp and mould feed into the valuer’s view of condition and marketability, and that lands in the valuation. If the valuation comes in below the price, the shortfall comes out of your own pocket. How valuation works is in property valuation and transacted prices, and margin rules are in loan margin and the third-property rule.
Insurance pricing
Flood extensions are priced by risk. The same policy on two streets in the same town can cost very differently. That is useful to a buyer: get a quote against the address before you pay a deposit. A high premium, heavy conditions or an outright refusal is a professional risk assessment someone else has done for you, for free.
Resale: volume moves before price does
There is real Malaysian data here, and two analyses give slightly different pictures. Both are set out below.
- EdgeProp, 21 October 2024 (using EdgeProp’s EPIQ transaction data for 2019-2023 alongside NAPIC): after the December 2021 flood, non-landed property in Taman Sri Muda fell 18.6% to RM179,000 (RM216 psf) in 2022, a 14.3% drop per square foot from the 2021 peak; landed property fell to RM332,000 (RM298 psf). Over the same period landed property in the unflooded Seksyen 26, 27 and 28 of Shah Alam rose from RM564,000 in 2021 to RM887,000 in 2022.
- EdgeProp, 21 July 2026 (follow-up analysis): Taman Sri Muda’s median subsale price fell from RM365,000 in 2021 to RM340,000 in 2022, with transactions dropping from 23 to 6. But other townships with flood histories behaved differently – Taman Sentosa’s median subsale price still rose from RM360,000 in 2016 to RM465,000 in 2025.
In that same 2026 piece, Associate Professor Nor Eliza Alias of Universiti Teknologi Malaysia notes that higher flood risk “should be reflected in lower property values”, while in established urban areas engineering measures and planning controls often contain the risk so values hold; and Eddy Wong of Nawawi Tie Leung observes that buyers “will negotiate on anything and everything”, flood history included, and that the recency bias after a flood dissipates with time.
Related questions
How much does flood cover cost on a house in Malaysia?
PIAM’s own example, published 14 November 2025, is “as little as RM14 a month for a building insured for RM200,000”. That is an illustration rather than a quotation – real premiums are priced by location and risk, and can differ sharply between two streets in the same town. The practical move is to take the address to two insurers before you pay a deposit; the quote is a free risk assessment. Ask for flood and for subsidence and landslip to be listed by name on the endorsement.
Does a developer have to tell me the land is flood prone?
No rule requiring a developer to volunteer flood-prone status was found. What is certain is that flood risk is now part of the technical assessment: on 22 October 2025 the Deputy Prime Minister said historical flood data and risk areas have been channelled to the One Stop Centre and state technical committees, and that new drainage must comply with MSMA. So put the question to the council: did this project’s OSC approval include a flood technical assessment? Other developer checks are in developer background checks.
How do I check flood risk for a project that is not built yet?
There is no unit to walk, so check three other things. One: the JPS annual flood report entries for that district over the last few years. Two: ask the local authority for the site’s zoning and any constraint notation on the local plan, whether the OSC approval included a flood technical assessment, and whether the drainage is designed to MSMA. Three: visit the site and the roads around it, ideally within an hour of heavy rain, and ask nearby completed neighbourhoods what the last five years looked like.
Is there a flood information portal for Johor?
None was verified. Selangor runs its own state portal, Info Banjir JPS Selangor, but no equivalent public Johor portal was found as at 24 September 2026. Johor buyers therefore rely on the national Public InfoBanjir for the nearest stations, the JPS annual flood report for district records, and direct enquiries to the planning departments of MBJB, MBIP, MBPG or MPKu – plus a request to JPS Johor for the basin’s flood hazard map.
Frequently asked questions
Is there an official flood map I can check for a Malaysian address?
No. As at 24 September 2026, the official portal – Public InfoBanjir, run by JPS/DID – carries real-time rainfall and water level only (Normal, Alert, Warning, Danger). There is no historical flood layer and no address-searchable flood hazard layer. Hazard maps exist: CIDB’s flood risk assessment standard directs professionals to DID’s basin hazard maps, but that standard does not say they are public and gives no access link. Buyers are left with indirect checks – the annual flood report, the local plan, neighbours and insurance quotes.
How do I check whether an area is flood prone (kawasan banjir) in Malaysia?
Four steps. First, open the JPS annual flood report and read the entries for that district – maximum depth and maximum duration. Second, ask the local authority’s planning department for the lot’s zoning under the current Rancangan Tempatan and whether the plan carries any flood-prone or constraint notation. Third, go on site and look for water marks, raised thresholds and pump rooms, and ask long-standing neighbours about a specific date. Fourth, get a flood-extension quote from two insurers – the price itself is a risk signal.
Does fire insurance cover flood in Malaysia?
Essentially no. MSIG Malaysia’s fire product page (accessed 24 September 2026) states that “the basic perils covered from a Fire policy are fire and lightning only”, and lists flood, storm and tempest, subsidence and landslip and earthquake among the perils that can be added for additional premium. PIAM says the same in general terms: most standard policies exclude natural disasters unless specially extended, with its own example of a flood extension at “as little as RM14 a month for a building insured for RM200,000”. The bank-required policy is usually the fire policy, so the extension is on you to ask for.
Is landslide or landslip covered by a houseowner policy in Malaysia?
Not as standard. PIAM stated on 14 November 2025 that standard policies exclude landslide and landslip, and that homeowners in high-risk areas need separate extensions. This is the point most articles miss: houseowner and householder policies do include flood, storm and earthquake as standard, but landslip is not among them. The result is that a hillside house can be insured for fire and for flood and still carry no cover for the risk that actually threatens it. Ask for subsidence and landslip to be listed by name on the endorsement.
What should I check before buying a hillside property in Malaysia?
Check the classification, then check the site. Under PLANMalaysia’s hill and highland planning guideline, slope Kelas I (under 15 degrees) and Kelas II (15-25) are developable, Kelas III (25 to under 35) may only be considered for low-impact use with no structures, and Kelas IV (above 35) allows no development. Elevation Tahap 1 (above 1,000 m) is prohibited and Tahap 3 (150-300 m) needs technical committee approval. Ask the council which class the land is in and whether approval went through a hill technical committee, then inspect retaining walls for cracks and seepage, weep holes, fresh fill and diagonal cracks indoors.
Should I buy a house that has flooded before?
You can, provided it is priced in. On financing, no published bank policy linking flood history to margin or rate could be found, but banks lend against valuation and a valuer sees water marks and patching. On resale, EdgeProp’s analysis records Taman Sri Muda’s median subsale price falling from RM365,000 in 2021 to RM340,000 in 2022 while transactions fell from 23 to 6 – volume moves first. Yet Taman Sentosa, also with a flood history, still rose from RM360,000 (2016) to RM465,000 (2025). Get an insurance quote before you commit, and negotiate for the liquidity risk, not just the repairs.
Sources & verification
- Public InfoBanjir — Jabatan Pengairan dan Saliran (JPS/DID) Malaysia, real-time rainfall and water level
- JPS — Laporan Banjir Tahunan 2020 (Annual Flood Report, ISSN 2785-910X)
- JPS — Laporan Banjir Tahunan 2021
- Malay Mail — DPM Fadillah: flood risk now a key factor in approving new housing projects (22 Oct 2025)
- Town and Country Planning Act 1976 (Act 172) — ss.12-13 on local plans and public inspection
- PLANMalaysia — Rancangan Tempatan portal
- PLANMalaysia@Terengganu — Permohonan Tanah Tinggi dan Lereng Bukit (slope and elevation classes)
- KPKT — Garis Panduan Pengurusan Cerun di Kawasan Pihak Berkuasa Tempatan (22 Feb 2021)
- JMG — MINGEOGIS / MyGEMS geospatial portal announcement (12 Nov 2025)
- PIAM — Stronger Storms Ahead: How Malaysians Can Prepare for the Monsoon (14 Nov 2025)
- MSIG Malaysia — Fire insurance product page, basic perils and extensions (accessed 24 Sep 2026)
- CIDB — Construction Industry Standard for Flood Risk Assessment in Malaysia (draft)
- EdgeProp — Flood risk does not always sink property values (21 Jul 2026)
- EdgeProp — Rising waters, falling prices? Impact of floods on Selangor's property prices (21 Oct 2024)
- Info Banjir JPS Selangor — a state-level flood portal
Verified: 2026-09-20. This guide is general information, not legal, tax or financial advice. Rules and rates change — confirm in writing with your lawyer, bank or the relevant authority before you sign.
More in this stage
Louis Koh
11 years in Malaysian property · Johor Bahru & Kuala Lumpur · English & 中文
I help local buyers and cross-border buyers from Singapore with new and subsale property. Every figure in these guides is sourced; when a rule changes, I update the page and date it.
Stuck on this step? Ask me directly
Send me your situation — new or subsale, budget, state, and where you are in the process — and I will tell you what to do next and what to watch for.
Send me the address and I will tell you which JPS annual report to open, which planning department to write to, and send you a site checklist for water marks and drainage.
Louis Koh · 11 years in Malaysian property · +60 10-906 6685 · replies 9am–10pm MYT