Open Arsenal Real Estate Specifications

The real estate related specifications in this ecosystem are designed around a shift away from centralized platforms toward locally hosted, machine-readable property systems that prioritize ownership, transparency, and interoperability. Across the design, property data is no longer treated as portal-dependent content but as structured, self-contained intelligence that can live directly on a website or private server. These systems emphasize deterministic data formats for listings, spatial modeling, and valuation logic, ensuring that real estate information can be consumed consistently by applications, AI systems, and verification layers without relying on proprietary intermediaries. The architectural direction reflects a broader move toward modular infrastructure where each component, whether describing a property, a structure, or its economic context, can be independently validated, versioned, and reused across platforms.

A second core design theme is the integration of cryptographic trust, encryption, and blockchain-aligned verification layers into real estate workflows. Instead of treating property records as static listings, the design embeds auditability through immutable logs, verifiable provenance chains, and tokenized representations of physical space that can map digital units to real-world square-meter or asset-backed equivalents. These systems also introduce blockchain-inspired ownership structures that support fractionalization, transparent transfer histories, and tamper-resistant records, while still allowing hybrid architectures where sensitive data remains encrypted and locally controlled. Combined with secure identity frameworks and verifiable data exchange standards, the result is a real estate infrastructure that behaves less like a marketplace and more like a distributed trust network, where encryption, decentralized verification, and locally hosted control form the foundation for how property intelligence is created, shared, and enforced.

All specifications are released under the GNU Affero General Public License v3.0 or later (AGPL-3.0+) and may be freely used, modified, and distributed with the required attribution provisions outlined in Section 7 of the license. Organizations seeking attribution-free commercial deployment may obtain a Specification Branding License (SBL), with licensing terms and pricing based on the specification category, deployment scope, usage scale, and the size of the network or organization utilizing the specification.

Real Estate Specs

• CasaBot Module Specification
  https://roxanneardary.com/casabot/
  An open-source AI-powered real estate companion that continuously monitors listings, analyzes market trends, and delivers personalized alerts. It assists users in finding ideal properties.

• CommonsHome Module Specification
  https://roxanneardary.com/commonshome/
  An open-source AI-powered platform for home staging, spatial intelligence, and real estate marketing optimization. It transforms property photos into market-ready listings with virtual staging and insights.

• GeoListing Module Specification
  https://roxanneardary.com/geolisting/
  Open Semantic Infrastructure for Real Estate, an AI-powered platform for listing generation, SEO optimization, compliance automation, market intelligence, and semantic property discovery. It streamlines real estate marketing.

• HabitaSense Module Specification
  https://roxanneardary.com/habitasense/
  An open-source AI-powered platform that delivers transparent, data-driven analysis of rental and home ownership markets. It supports market transparency.

• HappyHouse Module Specification
  https://roxanneardary.com/happyhouse/
  An AI-powered home maintenance and property intelligence platform for tracking systems, managing repairs, and predicting maintenance needs. It helps property owners maintain their assets.

• HelixPlan Module Specification
  https://roxanneardary.com/helixplan/
  HelixPlan is an open-source spatial intelligence system that reconstructs accurate architectural floorplans from walkthrough video and minimal dimensional inputs using computer vision, SLAM, and AI-driven spatial reasoning. It generates structured 2D and 3D representations of real-world interiors, including walls, rooms, doors, windows, closets, and stairs, while continuously improving through an open, community-driven development model.

• HouseLens Module Specification
  https://roxanneardary.com/houselens/
  An open-source AI-powered platform that helps buyers and renters analyze property disclosures, verify compliance, and uncover risks before making a real estate decision. It focuses on transparency and informed decision-making in property transactions.

• InspectHome Module Specification
  https://roxanneardary.com/inspecthome/
  An open-source, transparency-first real estate platform that requires full property disclosures, verified documentation, and encrypted user data. It promotes confident home buying.

• LeaseTrack Module Specification
  https://roxanneardary.com/leasetrack/
  An open source AI platform that analyzes U.S. rental markets to identify affordability gaps, ownership patterns, and landlord compliance issues. It focuses on rental market equity and compliance.

• ListingStream Module Specification
  https://roxanneardary.com/listingstream/
  ListingStream is a modular AI-powered platform that enables intelligent product placement within photographs while preserving the original image through strict pixel-level integrity controls. It combines scene understanding, real-time compliance rules, human-in-the-loop approval, and explainable AI to turn visual media into structured, monetizable marketing assets across multiple industries.

• Magistrate Title Services Module Specification
  https://roxanneardary.com/magistrate-title-services/
  An open-source blockchain and AI-powered platform that modernizes real estate title, escrow, and verification systems. It provides secure, transparent title services.

• MindLedger for Real Estate Module Specification
  https://roxanneardary.com/mindledger-for-real-estate/
  MindLedger for Real Estate is a modular, open-source real estate operating system that unifies CRM, listings, marketing, analytics, compliance, and accessibility into a single intelligent platform. It uses a dual-AI architecture to support both agent operations and public-facing services, enabling automation, customization, and continuous system evolution.

• NeighborhoodGraph Module Specification
  https://roxanneardary.com/neighborhood-graph/
  An open-source civic intelligence platform that transforms housing, land, infrastructure, and community data into an interactive knowledge graph. It explores neighborhood evolution over time.

• Nexa Module Specification
  https://roxanneardary.com/nexa/
  Nexa: Continuity Engine is a generational wealth operating system that structures and governs long-term financial systems using programmable trust logic, lifecycle rules, and multi-trust network architecture. It enables simulation and management of inheritance, assets, and governance across decades to support sustained wealth continuity across generations.

• OpenProperty Module Specification
  https://roxanneardary.com/openproperty/
  An open-source real estate transparency platform that uses AI to verify disclosures, permits, and compliance for buyers, renters, and sellers. It aims to build trust through verifiable property information.

• ParcelPlanner Module Specification
  https://roxanneardary.com/parcelplanner/
  An open-source property intelligence platform that helps users determine what can legally be built, modified, or developed on a parcel of land using official zoning laws. It supports informed development decisions.

• PlotLedger Module Specification
  https://roxanneardary.com/plotledger/
  An open-source AI platform that unifies large land parcel data, zoning laws, permits, and ownership records into a single national intelligence system. It provides comprehensive parcel insights.

• PropIntel Module Specification
  https://roxanneardary.com/propintel/
  An open-source, AI-driven property intelligence platform that tracks ownership, notices of default, liens, foreclosures, and title history across the United States. It delivers comprehensive property history data.

• RecordMesh Module Specification
  https://roxanneardary.com/recordmesh/
  A modular AI platform that converts jurisdiction-aware legal intent into real property instruments and county-ready recording packets for real estate filing systems. It automates property documentation.

• SignalParcel Module Specification
  https://roxanneardary.com/signalparcel/
  An open-source system that maps land ownership, operators, and licensing relationships using verified public records. It supports transparent land and property analysis.

• SignalTruth Module Specification
  https://roxanneardary.com/signaltruth/
  An open-source commercial real estate intelligence system that transforms public records into a structured, confidence-scored property graph with ownership, market, legal, and completeness analysis. It delivers detailed CRE insights.

• TownIntel Module Specification
  https://roxanneardary.com/townintel/
  Tracks rental registrations, landlord certifications, and census discrepancies at the town level with analytics and predictive insights. It aids in rental market oversight and compliance.

• TrustLens Module Specification
  https://roxanneardary.com/trustlens/
  An open-source AI-powered platform that helps sellers prepare fully transparent, disclosure-ready property listings before going to market. It supports better compliance and buyer confidence.

• UrbanLayer Module Specification
  https://roxanneardary.com/urbanlayer/
  An open-source municipal infrastructure platform for zoning, permitting, GIS analysis, and AI-powered regulatory automation. It supports property development and urban planning.

• ValueGrid Module Specification
  https://roxanneardary.com/valuegrid/
  An open-source property intelligence platform that provides transparent valuation models, environmental risk analysis, and a publicly verifiable National Property Ledger. It enhances data-driven real estate decisions.

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Specification Branding License (SBL)

Buy the Basket: https://roxanneardary.com/real-estate-specifications/

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License & Notice Requirements

Open Arsenal Real Estate Specifications are released under the GNU Affero General Public License v3.0 or later (AGPL-3.0+).
By contributing to any project, you agree that your contributions will also be released under this license.

Please note the following:

• All contributions must comply with the AGPL-3.0+ terms.
• Under Section 7 of the license, all redistributions, forks, and derivative works must preserve attribution to:
  Roxanne Ardary and roxanneardary.com.
• Open Arsenal specificiations are free to use with attribution. A Specification Branding License can be negotiated upon request.
• The project's notice.md file tracks attribution requirements and contributor acknowledgments.
  Any update that adds new contributors or modifies attribution should also update notice.md.
• When submitting a pull request, ensure that any new files maintain the attribution headers where applicable.
• Network-deployed versions of this software must also remain fully AGPL-3.0+ compliant, including exposure of source code modifications when applicable under the license.

For full legal details, please refer to the AGPL-3.0+ license and the project's notice.md file.

Open Arsenal Hub
https://github.com/openarsenalspecs/Open-Arsenal