What does Denver Water's 2026 tap fee cost a 480 sq ft backyard cottage (ADU) against a house?

What it found

From Denver Water’s own 2026 schedule: an ADU pays a flat $2,170 inside Denver from 1 July 2026 ($2,055 before), against $5,400 for a house charged on 2,000 sq ft, 60% less. Per floor sq ft the ADU is dearer ($4.52 against $2.70). Denver Water’s share is small beside house-market’s $16,930 “water and sewer SDC”, leaving about $12,000 for sewer and other items. Denver DOTI’s own 2026 sewer schedule ($6,480 per residential unit, plus $575 application and inspection) puts an ADU that shares the house’s water tap at about $2,745 for water and sewer permits together, and one needing its own tap at up to $9,225 (an upper-bound reading: DOTI publishes no ADU amount); about $5,500 of house-market’s figure stays unexplained. Two utilities only; the page does not say whether the rate applies to lot or floor area.

A figure from its own output

Paper, code and results

• README and method
• Experiments and results
• Code
• Tests

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Proper scoring & elicitation28Effort & peer prediction9Verification games & slashing19Detection & tolerances14Markets as routers13Prediction-market design9Paying contributors8Decentralised training systems23Digital twins & sim-to-real164LLM chip design loops40Robot manufacturing loops53Ambient AI assistant46Self-replicating manufacturing34Simulation-first design64Engineered clothing45Task-specific AI accelerators40Algorithmic chip-design loops42Open-source purpose-built robots44The software-engineering loop43Adversarial human imitation41Open-source residential construction41Autonomous multi-angle capture34Sensing, imaging and 3D31Energy supply and dense energy storage39Robot societies among people31Agentic co-design of low-cost robots27Laundry-hanging robots25Machine learning on qualitative data23Robots on the building site27Civilizations & group psychology1History & human sciences1

Produced with AI assistance (Claude). Results are from the code in this repository and are simulated or stylised unless the abstract says otherwise; nothing here implies affiliation with or endorsement by any lab, researcher or company cited. MIT licensed.