---
title: "Budget total : kit + fondation + montage + taxe d'aménagement 2026, avec hypothèses."
method: GET
path: "/api/v1/budget"
tags: ["Calculs"]
---

# Budget total : kit + fondation + montage + taxe d'aménagement 2026, avec hypothèses.

`GET /api/v1/budget`

## Request

- Base URL: `https://chaletiste.fr`
- URL: `https://chaletiste.fr/api/v1/budget`
- Auth: none required

## Query parameters

- `product` string, required
- `foundation` 'dalle' | 'plots' | 'none'
- `assembly` 'pro' | 'self'
- `region` 'idf' | 'hors-idf'
- `surface_taxable` number
- `commune_rate` number
- `department_rate` number
- `main_residence` boolean
- `archeology` boolean

## Response `200`

Estimation

- BudgetResponse
  - `ok` boolean
  - `total_eur` number
  - `range_eur` object
    - `low` number
    - `high` number
  - `lines` object[]
    - `item` string
    - `label` string
    - `amount_eur` number
    - `low_eur` number
    - `high_eur` number
    - `source` string
  - `assumptions` string[]
  - `explanation` string
  - `sources` unknown[]
    - unknown

## Other responses

- `400`: Erreur
- `404`: Erreur

---

[API](https://skmtc.dev/chaletiste/apis/chaletiste-api.md) · [All operations](https://skmtc.dev/chaletiste/apis/chaletiste-api/llms.txt) · [OpenAPI document](https://skmtc.dev/chaletiste/apis/chaletiste-api/revisions/16c87adadc05?raw)