QGIS
QGIS.org association · GIS & mapping
Open-source desktop GIS for viewing, editing, analysing and publishing vector and raster geodata, extensible with Python plugins
GPL-2.0-or-laterOpen sourceFreeLocalBroken
Real estate valuation & property data
Appraisal, hedonic modelling, listings and property registries.
6 tools
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RSMeans Data
Gordian · Construction estimating & quantity surveying
Gordian's construction cost database of unit prices, assemblies and square-foot models with location factors, sold online and in annual books
ProprietaryPaidEnterpriseNov 2, 2026
Rôle d'évaluation foncière (Québec)
Gouvernement du Québec — Ministère des Affaires municipales et de l'Habitation · Real estate valuation & property data
Québec's municipal property assessment rolls: per-unit values and building attributes published by municipalities and as open data by the MAMH
CC-BY-4.0FreeNov 2, 2026
Centris.ca
Centris Corporation inc. · Real estate valuation & property data
Québec's broker-fed real estate listings portal operated by Centris, with for-sale and rental listings, price statistics and a broker directory
ProprietaryFreeNov 2, 2026
Registre foncier du Québec en ligne
Gouvernement du Québec — Ministère des Ressources naturelles et des Forêts · Real estate valuation & property data
Official online access to Québec's land register: index of immovables, registered deeds and rights by lot number, run by the provincial government
ProprietaryUsage-basedNov 2, 2026
REALTOR.ca
REALTOR.ca Canada Inc. (Canadian Real Estate Association) · Real estate valuation & property data
Canada's national consumer portal for MLS listings, operated by CREA's REALTOR.ca Canada Inc., with licensed data syndication through the DDF
ProprietaryFreeNov 2, 2026