PurposeTo critically assess the reconstruction process's outcomes four months after a wildfire disaster in Vi & ntilde;a del Mar, Chile, comparing the governmental reconstruction plan and the actual rebuilding efforts by the dwellers.Design/methodology/approachA geographic information system (GIS)-based analysis to deliver a spatial-based comparison of (1) the cadastre of damaged dwellings; (2) the Ministry of Housing and Urbanism's (MINVU) reconstruction plan and (3) the actual reconstruction that has been carried out by the dwellers themselves up to November 2023 (as surveyed through fieldwork and drone flights).FindingsAround 307 dwellings (97.7% of the 314 examined households) had been rebuilt by November 2023, all through the dwellers' self-reconstruction efforts, except for two houses delivered by MINVU. Around 105 of these dwellings (34.2%) were granted a reconstruction subsidy by MINVU, while 155 (49.4% of the sample of 314 dwellings) were rebuilt without this aid. Also, 47 houses were rebuilt by dwellers in areas deemed "non-rebuildable" due to their high-risk levels.Originality/valueWe use a mixed-methods approach to examine disruptions between planned reconstruction and actual rebuilding processes following a wildfire disaster in areas with significant informality.