Expert articles on existing buildings, energy, law and technology.
How portfolio holders quantify the maintenance backlog methodically: condition grades per component group, cost estimation to DIN 276, key figures for boards and banks.
Read more →Investment planning (Wirtschaftsplanung) for housing portfolios as a rolling annual cycle: quarterly logic, roles and interfaces, the data basis and the typical errors of carried-forward budgets.
Read more →Which inspection and safety duties affect holders of residential property in Germany — from lifts to tree inspection. With obligations table, intervals and legal bases.
Read more →Infrared-reflective nano coatings promise insulation performance without insulation thickness. What the new operating principle can do, what trade bodies criticise and which field trials are under way.
Read more →The 12 most common hidden defects when buying a house in NRW – with refurbishment costs, detection markers and inspection advice from an AKNW chartered architect.
Read more →Energy consulting in Düsseldorf: fee ranges, 50% BAFA subsidy, iSFP bonus and realistic timeline – explained transparently by an AKNW chartered architect.
Read more →Individual refurbishment roadmap (iSFP) 2026: structure, 50% BAFA subsidy, 5% implementation bonus, sequencing logic – explained by an AKNW chartered architect.
Read more →Buyer support or building surveyor? Clear separation of tasks, costs, liability and report formats – decision guide from an AKNW chartered architect in Düsseldorf.
Read more →German Building Energy Act (GEG) 2024/2026: which refurbishment duties apply when, which exceptions exist and when an ownership change triggers the 2-year deadline.
Read more →Building drone surveys 2026: workflow from pre-flight check to report, EU drone law (A1/A2/A3), marking duties, insurance and realistic costs.
Read more →TDD in line with the RICS standard: three depth levels, mandatory content, report structure, fee ranges – the standard reference for asset holders and investors.
Read more →CAPEX planning for residential portfolios: methodology to AHO/DIN 276, BKI 2025 rates per component, 10-year investment plan – for asset holders and asset managers.
Read more →Building thermography 2026: operating limits, weather conditions under DIN EN 13187, typical findings, costs – and when an image is NOT meaningful.
Read more →Market value appraisal, short appraisal and building condition analysis compared: occasions, mandatory content, costs and legal effect – decision guide for owners.
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