Salt damp and rising damp in Adelaide

“Salt damp” is a South Australian word before it is anyone else’s. The national technical guide on the subject calls it a term widely used in South Australia to refer to high salt concentrations associated with rising damp (D. Young, Salt attack and rising damp: a guide to salt damp in historic and older buildings (Heritage Council of NSW, Heritage Victoria, SA Department for Environment and Heritage, Adelaide City Council, November 2008), s 1), and the guide itself began in Adelaide: its first edition was published in South Australia in 1995, and the 2008 edition was written for Adelaide City Council and the state heritage department alongside the NSW and Victorian heritage bodies. This page is about what is different here — why the decay is worse, what it looks like on Adelaide’s brick and stone, and what the City of Adelaide offers owners of older buildings.

Why salt damp is worse in Adelaide

The guide is direct about it: Adelaide is well known for its bad salt damp because it has hot drying summers and very salty soils, whereas in Sydney the more humid climate and lower salt levels mean decay rates are slower (D. Young, Salt attack and rising damp: a guide to salt damp in historic and older buildings (Heritage Council of NSW, Heritage Victoria, SA Department for Environment and Heritage, Adelaide City Council, November 2008), s 2). Fast evaporation pulls moisture out of the base of a wall quickly, and salty soil means more salt is left behind each time. That is the combination that turns rising damp into salt attack.

The first row is the practical one. Salt damp can show as crumbling brick faces and eroded mortar in a band near the base of the wall, with no white bloom at all. If you only look for salt, you can miss it. Efflorescence and fretting explains why the damage happens inside the brick.

South Australia learned the hard way

The guide records that in the 1960s and 1970s there were many failed damp treatments in South Australia while the problem was poorly understood, and so many complaints reached consumer affairs that the state government set up a Salt Damp Research Committee which operated in the period 1974 to 1982 (D. Young, Salt attack and rising damp: a guide to salt damp in historic and older buildings (Heritage Council of NSW, Heritage Victoria, SA Department for Environment and Heritage, Adelaide City Council, November 2008), s 3). The guide says the committee produced several reports and guides, held a national conference in 1978 and commissioned scientific research.

The lesson for an Adelaide owner today is the same one the guide gives everywhere. It says many damp-proofing contractors specialise in one treatment method only, so seek independent advice, and check your adviser’s credentials. Rising damp sets out what an inspection should cover, and how to fix rising damp goes through the methods in order.

What the City of Adelaide offers

Specifications. The council makes specifications available on request for tradespeople and owners to use during the Development Approval process, including Damp proof injection, Masonry conservation, Salt damp management, and undersetting (City of Adelaide, Heritage resources). It recommends contacting its heritage architects, who can provide the right specification and tailored advice for a particular building. Using the council’s own specification is a simple way to compare quotes on the same scope.

Heritage grants. The City’s Heritage Incentives Scheme reimburses owners of heritage and unlisted historic character places that meet its criteria a portion of the cost of professional advice and documentation and of conservation work (City of Adelaide, Heritage Incentives Scheme (HIS)). Its case studies list salt damp (undersetting or chemical injection) among the most common projects it funds (City of Adelaide, Heritage Incentives Scheme case studies). Three conditions matter for planning:

• The council says the budget is fully allocated for FY 2026/27, and to check its page in June 2027 for the 2027/28 round.
• An allocation is made only once both the scheme approval and development approval are obtained, and there is no guarantee of funding — so talk to the council before work starts.
• The council offers a free initial onsite meeting with its heritage team before you apply.

The scheme is the City of Adelaide’s, for places in its area. Owners elsewhere in metropolitan Adelaide should ask their own council what it offers; this page has not read other councils’ schemes.

Building work rules and cost

For larger jobs, South Australia’s building indemnity rules come into play. Contracts priced below $20,000 are minor domestic building work (Building Work Contractors Regulations 2026 (SA) reg 4(4)(c)), and the insurance requirement does not apply to work that does not need approval, or to minor domestic building work (Building Work Contractors Act 1995 (SA) s 33(2)). Whether a particular salt damp job needs approval is a question for the council or a building certifier.

No Adelaide-specific published price for salt damp work could be read for this page. The published Australian prices for chemical damp-proof course injection run from $55 to $400 per linear metre depending on who publishes them, and salt-retardant replastering adds more; the rising damp cost table sets them out with their sources.

Renting in South Australia

South Australia’s minimum housing standards require premises to be reasonably free from mould or other irritants, structural disrepair or other adverse effects caused, or contributed to, by moisture or damp (Housing Improvement Regulations 2017 (SA) reg 15(j)), and the landlord must keep them in a reasonable state of repair having regard to their age, character and prospective life (Residential Tenancies Act 1995 (SA) s 68). Salt damp is a building problem, not a tenant one: report it in writing with photographs of the damaged band of brickwork and any damp patches inside. Mould removal in Adelaide covers the related mould rules, and the Adelaide page covers water damage more broadly.

Common questions