Do I need an API key or to sign up?
No. The server is free, public, and read-only. No authentication is required.
L
Ladu Adu Tools MCP Server
@ladu-dev
基本情報
Ladu Adu Tools MCP Server について
LADU’s MCP server connects AI assistants directly to LA County ADU data. Ask about any address and get a plain-English buildability verdict, the parcel’s zoning and regulatory overlays (hillside, coastal, fire, flood, historic, fault zones), and the governing city’s ADU rules. Qu
Ladu Adu Tools MCP Server の設定
以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。
{
"mcpServers": {
"ladu": {
"url": "https://www.ladu.co/mcp"
}
}
}Ladu Adu Tools MCP Server のツール
10Estimate the total cost to build an ADU in an LA-area city, including construction and permit fees. Returns a cost range, timeline, and plain-text summary.
List all 51 LA-area cities supported by the ADU cost calculator, with their slugs, display names, county, and governing municipality.
Look up the ADU regulatory facts for a specific Los Angeles County property by street address: zoning, lot size, applicable overlays (hillside, coastal, fire, flood, historic, fault, etc.), and the governing jurisdiction's ADU rules (setbacks, max size, max height, parking, permit fees and timeline). Covers all ~2.4M LA County parcels; overlay detail is richest for City of Los Angeles parcels.
Assess whether an ADU can likely be built at a specific Los Angeles County address. Returns a plain-English buildability verdict (likely / possible with caveats / complex), the parcel's zoning and flagged overlay conditions, the governing jurisdiction's ADU rules, the count of permitted ADUs nearby, and a quotable summary. Use this when a user asks 'can I build an ADU at <address>?'.
Get the structured ADU regulations for an LA-area city: setbacks, max size, max height, parking, permit fees, timeline, and city-specific special rules. City-level (no address needed). Use list_cities for valid slugs.
Get ADU permit totals for an LA-area city from LADU's permit database: total permits on record, permits in the most recent full year, year-over-year change, and median permit valuation. Falls back to the LA County aggregate when a city has little city-specific data (the response says which).
Get the year-by-year ADU permit trend (permits and median valuation per year, 2018–present) for an LA-area city or the LA County aggregate. Use for 'ADU growth in <city>' questions.
Find permitted ADUs near a Los Angeles County address (within a radius, default 2 miles). Returns recent permits with their address, year, status, JADU flag, and distance — useful for 'are people building ADUs near <address>?'. Addresses only; no owner information.
Get the distribution (25th percentile, median, 75th percentile) of declared ADU permit valuations for an LA-area city, optionally for a single year. Declared valuation is the applicant's stated construction cost on the permit and is typically lower than all-in project cost — use estimate_adu_cost for a project cost estimate.
Compare the ADU rules of two LA-area cities side by side: max size, height, setbacks, parking, permit fees, and timeline. Returns a row-by-row diff and a summary of the differences. Use list_cities for valid slugs.
概要
What is Ladu Adu Tools?
A free, public, read-only MCP server that provides real ADU (Accessory Dwelling Unit) data for Los Angeles County. It connects any MCP-compatible AI assistant to zoning, regulations, permit statistics, and buildability checks—no API key or signup required.
How to use Ladu Adu Tools?
Add the URL https://www.ladu.co/mcp to your MCP client configuration (e.g., Claude Desktop, Cursor, Cline). Restart the client, and the tools become available automatically. There is no authentication step.
Key features of Ladu Adu Tools
- Check buildability for any LA County address
- Lookup parcel rules, zoning, and overlays
- Get structured ADU rules for 51 cities
- Compare two jurisdictions side-by-side
- Estimate ADU cost and timeline
- Access 19,000+ permitted ADU records (2018–present)
Use cases of Ladu Adu Tools
- Determine whether a specific property can add an ADU
- Compare ADU regulations between two cities
- Estimate project cost and timeline for a planned ADU
- Analyze ADU permit trends and median valuations
- Find permitted ADUs near a given address
よくある質問
What data does the server provide?
It returns property characteristics, zoning, overlay designations, structured city ADU rules, and aggregate permit statistics. It never returns owner names, contact details, or financial information.
How is the server rate limited?
Tool calls are rate-limited per client. When the limit is reached, the server returns HTTP 429 with a `Retry-After` header and a JSON‑RPC `-32000` error.
What cities are covered?
The server supports structured ADU rules for 51 Los Angeles‑area jurisdictions. Use the `list_cities` tool to see the full list.
Where does the permit data come from?
Permit records are sourced from public LA County Assessor and LA City/County Building & Safety records, deduplicated by case number, covering 2018 to the present.
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