U.S. single-family construction — research vault https://vault.sprava.ai Last 10 notes on U.S. single-family construction — research vault Quartz -- quartz.jzhao.xyz Actors overview https://vault.sprava.ai/Actors-overview https://vault.sprava.ai/Actors-overview Sat, 11 Apr 2026 23:42:38 GMT Architecture firms and consultants https://vault.sprava.ai/Actors/Architecture-firms-and-consultants https://vault.sprava.ai/Actors/Architecture-firms-and-consultants Sat, 11 Apr 2026 23:42:38 GMT Builder and general contractor https://vault.sprava.ai/Actors/Builder-and-general-contractor https://vault.sprava.ai/Actors/Builder-and-general-contractor Sat, 11 Apr 2026 23:42:38 GMT City county and state authorities (AHJ) https://vault.sprava.ai/Actors/City-county-and-state-authorities-(AHJ) https://vault.sprava.ai/Actors/City-county-and-state-authorities-(AHJ) Sat, 11 Apr 2026 23:42:38 GMT Owner and sponsor https://vault.sprava.ai/Actors/Owner-and-sponsor https://vault.sprava.ai/Actors/Owner-and-sponsor Sat, 11 Apr 2026 23:42:38 GMT Subcontractors and trade contractors https://vault.sprava.ai/Actors/Subcontractors-and-trade-contractors https://vault.sprava.ai/Actors/Subcontractors-and-trade-contractors Sat, 11 Apr 2026 23:42:38 GMT Vendors suppliers and distributors https://vault.sprava.ai/Actors/Vendors-suppliers-and-distributors https://vault.sprava.ai/Actors/Vendors-suppliers-and-distributors Sat, 11 Apr 2026 23:42:38 GMT Appendix - Extracted text blocks https://vault.sprava.ai/Appendix/Appendix---Extracted-text-blocks https://vault.sprava.ai/Appendix/Appendix---Extracted-text-blocks Sat, 11 Apr 2026 23:42:38 GMT Appendix - File manifest https://vault.sprava.ai/Appendix/Appendix---File-manifest https://vault.sprava.ai/Appendix/Appendix---File-manifest Sat, 11 Apr 2026 23:42:38 GMT Appendix - Raw structured export https://vault.sprava.ai/Appendix/Appendix---Raw-structured-export https://vault.sprava.ai/Appendix/Appendix---Raw-structured-export Sat, 11 Apr 2026 23:42:38 GMT