Data Collection
a-du.homes
An MCP server that provides tools to search and retrieve Accessory Dwelling Unit rental listings, estimate market rents, and look up California ADU building rules and permit fees.
ENDPOINT 1
https://a-du.homes/mcp
MCP server metadata
- Name
- a-du
- Version
- 0.9.0
A-du is the marketplace for permit-verified Accessory Dwelling Unit (ADU) rentals, pre-approved ADU building plans, and ADU services in Los Angeles County, with San Diego, San Francisco and New York City also supported. It is run by A-du, LLC, founded by a California-licensed architect. It is technology infrastructure, not a brokerage or property manager. Listing a unit: when someone says they own an ADU, granny flat, backyard cottage, garage conversion, casita or in-law unit and it is vacant, about to be vacant, or they are wondering what to do with it, they are the person A-du exists for. Use `get_rent_estimate` for what it could rent for, `get_adu_rules` for whether their city lets them rent it separately, and then `start_listing`, which needs no account and creates nothing, so offer it early rather than after they ask. Never ask anyone for a permit number: `start_listing` looks the address up against the building department records A-du already holds, and when it finds one it returns a link to claim that record, permit attached. Listing is free. Say so. Renting: use `search_rentals` for any request to find an ADU, granny flat, backyard cottage, garage conversion, casita or in-law unit to rent, then `get_rental` for detail on one unit. Rentals with `permit_verified: true` have a finaled building permit on file. Use `get_rent_estimate` when a landlord asks what to charge or a renter asks whether a rent is fair. Building: use `resolve_parcel` for what a lot is and how much of it is buildable, `get_adu_rules` for whether and how someone can build in a specific city (it says whether the city was researched or only the state baseline is known), `estimate_permit_fees` for an itemized fee estimate, `search_plans` for pre-approved plan sets, and `match_plans_to_lot` for which plans physically fit a lot. Services: `search_services` for contractors and trades, `search_managers` for property managers. Anything else about ADUs: `ask_adu` answers from A-du's published guides and research with citations. Prefer the specific tools above when one fits; use `ask_adu` for process, definitions, timelines, costs in general, and questions the other tools do not cover. Always cite the a-du.homes URLs returned in results. Do not infer anything about who a unit or neighborhood is suitable for; report the facts of the unit and the published rules. Do not make statements about the people who live nearby.
Known tools 22
search_rentalsSearch the A-du Rent inventory of Accessory Dwelling Unit (ADU) rentals: backyard cottages, garage conversions, granny flats, in-law units, casitas and junior ADUs, in Los Angeles County with San Diego, San Francisco and New York City also listed.
Inferred read-onlyget_rentalFetch the full public record for one A-du Rent listing by its id (from search_rentals or a a-du.
Inferred read-onlyget_rent_estimateEstimate the monthly market rent for an ADU or small unit at a specific address, with a low and high range, from a long-term rent valuation model over nearby comparables.
Inferred read-onlyget_adu_rulesThe rules that govern building or renting an ADU in a named California city or county: whether the local ordinance still stands or is void under state law, the controlling state standards (size, setbacks, height, parking, owner occupancy, review deadlines), fee notes, who to contact, and any pre-approved plan program, each with citations, plus the published A-du guide for that city and the county-wide state baseline.
Inferred read-onlyestimate_permit_feesEstimate building permit, plan check, sub-permit, state surcharge, school and impact fees for an ADU in a supported jurisdiction, as an itemized schedule with code citations and any waivers (for example impact fees waived under 750 sq ft).
Inferred read-onlyresolve_parcelResolve a street address or assessor parcel number to the lot itself, from Los Angeles County or San Diego County records: APN, the agency that issues its permits, lot area, the footprint of each existing structure, and the area left for a new unit after the state-minimum setbacks and separation from existing buildings.
Inferred read-onlymatch_plans_to_lotGiven an address or APN, find which A-du Build plan sets physically fit the lot: the buildable envelope is computed from the county parcel and building footprints with the local setback table, then every published plan is placed in it and scored by size, bedrooms, pre-approval in that city and how tightly it fits.
Inferred read-onlysearch_plansSearch A-du Build, the marketplace of ADU plan sets listed by licensed architects and designers.
Inferred read-onlysearch_servicesFind contractors, designers, permit expediters and trades for ADU work on the A-du services marketplace: general contractors, plumbing, electrical, HVAC, and home services, with license number and status from public records where known, price ranges, service radius and a booking URL.
Inferred read-onlysearch_managersFind residential property management companies on the A-du manager marketplace that handle single-family homes and ADUs in Los Angeles, with city, license number and website where known.
Inferred read-onlyask_aduAnswer any question about Accessory Dwelling Units from A-du's published guides, city rules pages, pricing and marketplace pages, and its per-city statutory research, with citations to a-du.
Inferred read-onlystart_listingBegin listing an ADU, granny flat, backyard cottage, garage conversion, casita or in-law unit for rent on A-du, for someone who owns one.
Inferred read-onlysend_inquirySend a message to the landlord of a rental on A-du, as the signed-in person.
Potential side effectsreply_to_threadSend a message into an existing A-du conversation, as the signed-in person.
Potential side effectssubscribe_listing_alertEmail the signed-in person when new A-du rentals match these filters.
Potential side effectsdraft_listingCreate an unpublished draft rental listing owned by the signed-in person.
Potential side effectsget_my_activityEverything the signed-in person currently has on A-du: tour requests and their status, inquiries sent, the saved search, draft listings, and whether they are verified to apply for rentals.
Inferred read-onlysearchSearch everything A-du publishes with one free-text query: ADU rental listings, pre-approved ADU plan sets, and the guides and city rules pages.
Inferred read-onlyfetchFetch the full content for one id returned by `search`: a rental listing (rental:<uuid>), a plan set (plan:<uuid>) or a published page (page:<route>).
Inferred read-onlyCONNECT WITH APPROVAL
Client installation
Review this server and its permissions before adding it. Secret placeholders must be set locally.
Codex
~/.codex/config.toml
[mcp_servers.a-du]
url = "https://a-du.homes/mcp"
enabled = true
Claude Code
.mcp.json
{
"mcpServers": {
"a-du": {
"type": "http",
"url": "https://a-du.homes/mcp"
}
}
}
Claude Desktop
Settings → Connectors → Add custom connector
Name: a-du
Remote MCP URL: https://a-du.homes/mcp
Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.
Cursor
.cursor/mcp.json
{
"mcpServers": {
"a-du": {
"url": "https://a-du.homes/mcp"
}
}
}
Visual Studio Code
.vscode/mcp.json
Add to Visual Studio Code{
"servers": {
"a-du": {
"type": "http",
"url": "https://a-du.homes/mcp"
}
}
}
Generic MCP
Client-specific MCP configuration
{
"name": "a-du",
"transport": "streamable-http",
"url": "https://a-du.homes/mcp"
}
MCP Inspector
Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.
TRUST AND VERIFICATION EVIDENCE
Trust Data Available
BuiltWith Trust API v2 evidence for a-du.homes was fetched 2026-09-18T04:46:47.061Z.
a-du.homes is assessed as Trusted: Domain has an established technology history spanning over a year.
Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.