About us

Advice and Reporting - Building and Building Envelope Defects including:

  • Building Waterproofing (Lic 298282C)

  • Ceramic Tiling, Natural Stone, Hard Floor Finishes and Concrete

  • Building Condition Audits


The Principal of PRNC, Peter Ralf Nissen has over 25 years of experience in Architectural Engineering and Building Diagnostics in Australia (Check NSW Licence history) and Europe. He is qualified Dipl.Ing. (Diplom-Ingenieur), Chartered Architect AKNW No. 103407 Germany, Australian Institute of Project Management No. 46651, Tile and Tiling Industry Association and ASAA Australian Stone Advisory Association member 18281.

Peter received numerous awards for providing expertise in waterproofing technology and detailing, hard floor finishes and slip resistance.

Recently, Peter was responsible for providing technical advice for a globally unique situation for a major multi-billion urban coastal development project 10m below the water level of the harbour in Sydney. For the commercial international towers T1, T2 and T3, the residential harbour side development of R9, R10 and the 34,000m2 basement he provided waterproofing specifications and detailing for the teams.

At Lendlease, Peter was one of the major resources in providing architectural engineering, technical waterproofing, design peer reviews, training and general defect cause finding expertise. He provided advice for many projects for defect prevention for over eight years. Over this time he provided specialist remedial and design advice in his fields of expertise for all major commercial, residential, CLT timber, health and retail projects for Lendlease in Australia and projects overseas.

For the City of Sydney Peter project managed major inner city complex refurbishment and heritage restoration projects.

Earlier in his career Peter was principal of an Architectural Firm in Berlin and Brandenburg, Germany, specialising in heritage restoration, residential high rise refurbishment and construction of new buildings signing for all architectural and many structural applications for approval by authorities.

As construction engineer and deputy manager of the general maintenance department of Thyssen Krupp, Duisburg Germany, he managed roof maintenance, waterproofing, industrial corrosion protection, road construction and general industrial refurbishment works of 4 departments.

Peter is passionate about collaborating with clients and stakeholders to analyse and resolve most complex issues, resulting in best practice and defect free construction.


After a complimentary scope definition, our independent services can include:

Building defect diagnostic and remedial advice

Analysis and comprehensive reporting on building and building envelope defects to clients requirements, using experience combined with useful technology such as thermal imaging and DJI drone (CASA ARN 1044894) if required.

Timber technology

Defect prevention, design for durability advice, condensation thermal risk assessments for existing buildings and advice on general timber durability issues.




Copyright ©2015 by Peter Ralf Nissen Consulting
All Rights Reserved

Building Waterproofing (Lic 298282C)

Defect inspections, cause finding, reporting and independent remedial advice for home owners and building managers
Waterproofing detailing, project peer group reviews and advice for engineers, architects and builders
Advice on causes and prevention of dampness in buildings
Condensation risk assessments, thermal imaging inspections and leak detection
Drone viewing and documentation if required
Waterproofing training sessions for groups and workshops as required.

Ceramic tile, tiling, natural dimension stone, hard floor finishes and concrete

Advice ranging from natural dimension stone finishes, detailing, selection and defect advice to causes finding and resolutions for ceramic floor finishes performance and defect issues.

Slip resistance

Advice on slip resistance for commercial and private clients

Expert Witness

Expert Witness Services (Useful Information)