Survey software for Singapore

Defect inspection and mould survey apps for Singapore

In Singapore, PropertySurvey Pro is the app for BTO and condo defect inspections, rental handovers and common-property condition records, and DampApp Pro is the app for mould, condensation and ceiling leak investigations. Both work offline and are free to start.

Singapore needs two apps, not one. PropertySurvey Pro records defects in new HDB flats and condominiums, rental handovers and common-property condition; DampApp Pro records the humidity, surface temperatures and leaks behind mould and water stains. Both build the PDF on the phone or tablet, without signal.

Most Singapore homes are flats in high-rise blocks, cooled by air-conditioning and surrounded by warm, humid air all year. That moves the everyday damp problem away from rising damp and towards condensation on chilled surfaces, water leaking through floor slabs from the flat above, and heavy rain driven through window seals and façades. Where an item sits in the block matters as much as where it sits in the room.

The rules that shape a report are few and clear. HDB and private developers each give a one-year defects liability period. BCA regulates building works and runs the periodic structural and façade inspection regimes. In strata developments, the management corporation looks after common property under the Building (Strata Management) Act.

Defect inspectors and new flat and condo owners

BTO and condo defect inspections in Singapore

PropertySurvey Pro is a defect inspection app for new Singapore homes: walk the unit room by room, log each defect with a numbered, captioned photo and a clear location, and hand over a PDF the owner can use when reporting to HDB or the developer.

Timing drives the job. HDB covers newly completed flats with a 1-year Defects Liability Period from the date of key collection, and asks owners to report items within 1 month of key collection and before renovation works begin, so nobody has to work out later whether a defect came from construction or from the renovation. For private projects, URA's guidance says owners can report defects in the unit and the housing project to the developer for rectification within the 1-year defects liability period after collecting the key.

BCA adds two points for condo owners. A defect reported during the DLP stays the developer's responsibility even if it is still unsolved when the period ends, and once the DLP has passed, upkeep of the unit is the owner's. That makes the date on each item, and a follow-up visit that shows what was put right, as valuable as the list itself.

What PropertySurvey Pro records

  • Defects by room with numbered photos and markup (Pro)
  • Unit, room and exact location stated for each item
  • Follow-up visits that show what was rectified
  • Hundreds of photos handled offline
  • Floor plans, with AR room scanning on LiDAR devices

Damp and mould specialists, leak investigators and managing agents

Mould, condensation and ceiling leak surveys

DampApp Pro records why a Singapore ceiling, wall or wardrobe has gone mouldy: air temperature and humidity, surface temperatures, dew point calculated on the device, and the photographs and locations that tie them together.

Air-conditioning is often part of the story. A chilled duct, diffuser or pipe that sits below the dew point of the surrounding air will collect water, and a blocked condensate drain can leak. Record what was running, what could be accessed and which surfaces were below dew point, so the recommendation targets the cause rather than the stain.

Ceiling leaks are the other everyday case. HDB explains that water from the flat above can leak through the concrete floor slab, usually because the waterproof membrane and screed have worn, that this is common in older buildings in toilets and bathrooms, and that untreated leaks can cause mould. Leaks within flats are a shared matter between neighbours, while leaks from common property go to the Town Council. Dated photographs and readings from both flats make that conversation easier.

What DampApp Pro records

  • Dew point and surface temperature margin at each location
  • Moisture readings grid up each wall (Pro)
  • Air-conditioning, condensate and ventilation notes with photos
  • Extractor fans logged by location and working status
  • Weather on the day and radar for recent rain
  • Draft wording from AI Polish, reviewed by you

Property agents, landlords, MCSTs and facilities teams

Rental handovers and MCST condition records

PropertySurvey Pro also produces the condition reports that follow a Singapore home after handover: an inventory when a unit is let, a check-out comparison at the end, and condition records of common property for a management corporation.

For rentals, a room-by-room inventory with photographs at handover, repeated at check-out in the same order, turns a deposit discussion into a comparison of two dated records instead of two memories. Each photo carries its capture time, taken from the image data where it is available.

In strata developments, the management corporation maintains common property under the Building (Strata Management) Act. BCA also requires periodic structural inspections of residential buildings every 10 years and, since 1 January 2022, façade inspections every seven years for buildings more than 13 metres tall once they are over 20 years old. A structural engineer carries out the first and a competent person the second; a condition record in the app sits alongside their work and never replaces it.

What PropertySurvey Pro records

  • Check-in and check-out inventories compared room by room
  • Common property locations and access limits labelled
  • Itemised repair schedule in SGD
  • Stair geometry checked against BCA limits
  • Photo capture times from the image data where available

Rules that shape the report

Laws, standards and regulators in Singapore

Housing & Development Board (HDB)

Defects Liability Period (DLP) for new HDB flats

Newly completed flats have a 1-year DLP from key collection. HDB asks owners to report items within 1 month of key collection and before renovation, through an online request or the Building Service Centre.

Official source

Urban Redevelopment Authority (URA)

Defects liability period for private housing projects

After collecting the key, owners can report defects in the unit and the housing project to the developer for rectification within the 1-year defects liability period.

Official source

Building and Construction Authority (BCA)

Defects Liability Period (DLP) for condo units

Developers must resolve defects reported during the DLP under the sale and purchase agreement, and a defect reported in time stays their responsibility if it is still unsolved after the period.

Official source

Building and Construction Authority (BCA)

Building (Strata Management) Act

The law under which management corporations (MCSTs) run strata developments and their common property. BCA publishes strata management guides for MCSTs and owners.

Official source

Building and Construction Authority (BCA)

Periodic Structural Inspection (PSI)

Under the Building Control Act 1989, residential buildings are inspected by a structural engineer once every 10 years and non-residential buildings once every 5 years.

Official source

Building and Construction Authority (BCA)

Periodic Facade Inspection (PFI)

Since 1 January 2022, buildings more than 13 metres tall and over 20 years old need a façade inspection every seven years by a competent person. Landed houses and temporary buildings are exempt.

Official source

Housing & Development Board (HDB)

Preventing and fixing ceiling leaks in HDB flats

HDB guidance on leaks through the floor slab from the flat above, the shared responsibility between flat owners, and reporting leaks from common property to the Town Council.

Official source

On site in Singapore

What surveyors meet on site

  1. Condensation on air-conditioning ducts, diffusers and pipes

    Cold supply air and chilled pipework meet warm, humid room air. Measure the room's dew point and the surface temperature of the wet item, note whether insulation is missing or damaged, and check the condensate drain before blaming the building fabric.

  2. Leaks through the floor slab in bathrooms

    HDB links ceiling leaks to worn waterproof membranes and screed, especially in toilets and bathrooms of older blocks. Photograph the ceiling below and, where the neighbour agrees, the wet area above, so both owners see the same evidence.

  3. Rain through window seals and façades

    Heavy tropical downpours find failed sealant, window frames and façade joints. Record the elevation, the timing of the last heavy rain and whether the source may sit in common property that needs the management's access.

  4. Mould in closed-up units and wardrobes

    A unit left shut without cooling or ventilation, or a wardrobe against a wall that stays damp, can grow mould quickly in humid air. Note how long the unit was closed, the humidity inside and each affected surface.

  5. Construction defect or renovation damage?

    HDB asks for defects to be reported before renovation so the two do not blur. A dated inspection before the contractor starts gives the owner, HDB or the developer a clean baseline.

More guides for Singapore

Run a real survey on the free tier

DampApp Pro and PropertySurvey Pro can be used without an account or card. The free tier supports full offline surveys, watermarked PDF export, 3 free uses a month of each AI tool and a reusable on-device capacity of up to 25 surveys. Export or delete completed work to free a slot.

Pro is optional and adds cloud sync, greater storage, the full AI allowance, premium integrations and white-label branding. Eligible new subscribers start Pro with a free trial. Review the current entitlements, free trials and store prices on the ProSurvey pricing page.

Survey app questions from Singapore

Can I use PropertySurvey Pro for a BTO defect inspection?

Yes. Walk the flat room by room, log each defect with a numbered photo and location, and export the PDF on site. HDB asks owners to report items within 1 month of key collection and before renovation, and takes rectification requests online or at the Building Service Centre in the precinct.

When does the defects liability period end in Singapore?

For a new HDB flat, the Defects Liability Period runs for 1 year from the date of key collection. For private housing projects, URA's guidance describes a 1-year defects liability period after key collection. Check your sale and purchase agreement for the exact terms that apply to your unit.

Is there a free mould inspection app for Singapore?

Yes. DampApp Pro's free tier is a working app, not a demo: offline mould surveys, watermarked PDF reports, 3 free uses a month of each AI tool and up to 25 surveys kept on the phone or tablet. Pro is optional, priced in Singapore dollars in the App Store and Google Play.

Who fixes a ceiling leak in an HDB flat?

HDB treats a leak between flats as a shared responsibility between the upper-floor and lower-floor owners, and leaks from common property as a matter for the Town Council. DampApp Pro does not decide responsibility; it records dated photographs, readings and locations so both owners work from the same evidence.

Does the app replace a PSI or PFI inspection?

No. Periodic Structural Inspections are carried out by a structural engineer, and Periodic Façade Inspections by a competent person appointed by the building owner. PropertySurvey Pro records condition for owners, MCSTs and managing agents alongside that work, not in place of it.

Does it work in basements and new blocks without Wi-Fi?

Yes. Capture, calculations and the PDF all run on the device with no connection, so a basement car park, a riser cupboard or a freshly handed-over block is no obstacle. For Pro subscribers, cloud sync resumes on reconnection.

Can reports show costs in SGD?

Yes. Set your region to Singapore in Settings under Region & Language: report costs switch to SGD, temperatures show in Celsius and your company details pick up the local tax label. If a client needs another currency, override it in Settings.

Not in Singapore? Choose your country

Start your next survey in Singapore free

Download the app that fits your work, run a real survey offline and hand over the PDF on site. Pro is optional, with a free trial first.

Compare prices and free trials on the pricing page.

Choose your store

Download DampApp Pro

Choose the store for your device. The app is free to download and use, with optional paid Pro features.

Download DampApp Pro on the App StoreGet DampApp Pro on Google Play

Choose your store

Download PropertySurvey Pro

Choose the store for your device. The app is free to download and use, with optional paid Pro features.

Download PropertySurvey Pro on the App StoreGet PropertySurvey Pro on Google Play

Choose your store

Download HousingSurvey Pro

Choose the store for your device. The app is free to install. Signing in requires an active HousingSurvey Pro organisation subscription purchased on the web.

Download HousingSurvey Pro on the App StoreGet HousingSurvey Pro on Google Play