# Updates

### February - 2026

* [NTA 8800 Energy Label API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api)
  * Improved model [Energielabel API v2](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-v2-api) is live for houses. (documentation will follow soon)
  * Added energy label prediction for objects not present in the database.
  * New *api\_debug parameter* available for developers.
* [Kadaster Transaction API](https://docs.altum.ai/english/property-valuation-and-market/kadaster-transaction-api)
  * Transaction API v2 is live.
  * Coverage expanded: transactions involving a company or other legal entity as buyer or seller are now included.
  * Response now includes the legal entity that bought or sold the property.
* House Price Index (HPI)
  * New daily House Price Index now available.
  * Prices are indexed to the current day instead of the last day of the month.
  * Used in Transactions API v2 for more precise price indexing.
* [WWS Points API](https://docs.altum.ai/english/financing/wws-points-api)
  * Updated with new calculations aligned with WWS 2026 regulations for independent dwellings.

### January - 2026

* [Market Trend API](https://docs.altum.ai/english/property-valuation-and-market/market-trend-api)
  * Updated average price calculations to use (transactionprice\_indexed) instead of raw prices.
* [Contents Value API](https://docs.altum.ai/english/insurance/contents-value-api)
  * Implemented 2026 calculation rules, including updated requirements for inner surface area.
* House Price Index
  * Updated forecasting models to improve price prediction accuracy.
* [WWS API](https://docs.altum.ai/english/financing/wws-points-api)
  * Redesigned the usage page with a new multi-step dynamic form and persistent "Reuse Input" functionality.
  * Enhanced PDF generation to include pages 2–5 (Intro, Details, Rooms/Facilities, Glossary) with preview and download support.
  * Updated API integration to support new versioned endpoints.
* [Solar Scan API](https://docs.altum.ai/english/sustainability/solar-panel-roof-scan-api)
  * Fully redesigned the results interface with Dutch localization, tooltips, pagination, and improved layout.
* Data:
  * Master Dataset: Expanded statistical data to cover the years 2004–2025.
  * Administrative Dataset: Added the BagID feature.
* Platform & General Updates:
  * Validation: Implemented real-time postcode and house number validation across all major forms, including [AVM](https://docs.altum.ai/english/property-valuation-and-market/avm-api), [Energy Insight](https://docs.altum.ai/english/sustainability/energylabel-insights-api), and [Sustainability](https://docs.altum.ai/english/sustainability/sustainability-api).
  * Performance: Migrated all platform images to AWS CloudFront for automatic optimization and resizing, significantly improving load times.
  * Usage Pages: Deployed new [WOZ value](https://docs.altum.ai/english/property-data/woz-api) and [Move data](https://docs.altum.ai/english/property-data/move-data) pages with improved structure, charts, and Dutch translations.
  * User Management: Introduced a multi-stage email reminder system for unverified users and enhanced login flows.
  * Subscriptions: Enabled Stripe payment activation for Startup plans and updated the subscription UI with Dutch translations.
  * Bug Fixes: Resolved validation issues for sanitary fields in WWS forms and fixed subscription status loading errors.
* [Developer](https://docs.altum.ai/english/developers) Tools:
  * Published a comprehensive [Postman collection](https://docs.altum.ai/english/developers/postman-api-collection) for all Altum APIs on [docs.altum.ai](http://docs.altum.ai).

### December - 2025

* [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api-v2)
  * Deployed the [Sustainability V2 Apartments API](https://docs.altum.ai/english/sustainability/sustainability-api-v2-apartments) and [Delta API](https://docs.altum.ai/english/sustainability/sustainability-api-v2-apartments-delta), enabling queries for apartment addresses and target measures.
  * Added lock\_measures and exclude\_measures functionality, allowing users to lock specific improvement measures or exclude them from calculations for both houses and apartments.
* [Rebuild Value API](https://docs.altum.ai/english/insurance/rebuild-value-api)
  * Introduced an accuracy\_indicator (scale 1-7) to indicate confidence in the predicted rebuild value.
  * Implemented logic to determine the construction material of the wall, floor, and roof based on the build year.
  * Added the new output "accuracy\_indicator" of the rebuild value, explained here [accuracy-indicator](https://docs.altum.ai/english/insurance/rebuild-value-api/accuracy-indicator "mention")
* [AVM API](https://docs.altum.ai/english/property-valuation-and-market/avm-api)
  * Deployed the new AVM 202511 model version.
  * Updated data processing to ensure client-entered features are evaluated within the confidence model.
* [Contents Value API](https://docs.altum.ai/english/insurance/contents-value-api)
  * Upgraded the API to provide over 10 data points, including detailed house information.
* [Satellite Roof Scan API](https://docs.altum.ai/english/sustainability/satellite-roof-scan)
  * Updated the primary image data source from PDOK to Google Maps to improve coverage and quality.
  * Implemented PDOK as a fallback source when Google Maps imagery is unavailable.
* [Market Trend API](https://docs.altum.ai/english/property-valuation-and-market/market-trend-api)
  * Updated average price calculations to utilize transactionprice\_indexed instead of raw transaction prices.
* Data:
  * Master Dataset: Added statistical data (\~100 features) covering the years 2015 to 2025, related to population, energy, and amenities.
* Platform:
  * Integrated Cloudflare Turnstile verification to prevent fake accounts and malicious user activity.

### November - 2025

* [Rebuild Value API](https://docs.altum.ai/english/insurance/rebuild-value-api)
  * Added six new output fields regarding construction materials and their probabilities: wall\_material, wall\_material\_probability, floor\_material, floor\_material\_probability, roof\_material, and roof\_material\_probability.
* [AVM API](https://docs.altum.ai/english/property-valuation-and-market/avm-api)
  * New AVM Model created and deployed to improve the accuracy and reliability of the API.

### October - 2025

* [AVM API](https://docs.altum.ai/english/property-valuation-and-market/avm-api)
  * Fixed data processing issues
* [Sustainability Subsidy API](https://docs.altum.ai/english/sustainability/sustainability-subsidy-api)
  * Replaced customized scrapers with agentic scrapers built on Selenium and BeautifulSoup.
* [WWS Points API](https://docs.altum.ai/english/financing/wws-points-api)
  * Updated the WWS endpoint to /wws/01012024 (backward compatible).
* [Energylabel Insights API](https://docs.altum.ai/english/sustainability/energylabel-insights-api)
  * Implemented UI improvements, including enhanced styling and Dutch translations.
* Platform & General Updates
  * Authentication: Added support for Google and LinkedIn authentication via OAuth.
  * Interactive Reference Usage Page: Deployed a new multi-step form with property identification, search criteria, and enhanced results display.
  * Functionality: Enabled "Reuse input" functionality across all APIs, ensuring form data is restored properly.
  * Bug Fixes: Improved address data and coordinate handling, and fixed form validation for postcode and house number fields.

### September - 2025

* [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api)
  * Launched the new [delta](https://docs.altum.ai/english/sustainability/sustainability-api-v2-delta) endpoint to calculate the impact of specific sustainability measures on a property.
  * Added support for input filters for RVO measures.
  * Reduced latency by approximately 100–200ms across all endpoints.
* [Solar Panel Roof Scan API](https://docs.altum.ai/english/sustainability/solar-panel-roof-scan-api)
  * Updated the API response to include the creation date of the satellite images used for detection.
* [Developer](https://docs.altum.ai/english/developers) Tools
  * Released a comprehensive Postman collection for all APIs, including production and sandbox environments, OpenAPI specifications, and direct documentation links.

### August - 2025

* Added WWS version 1-1-2025

### July - 2025

* EPOnline version update from V4 to V5 for [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api), [NTA 8800 Energylabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api), [Rebuild Value API](https://docs.altum.ai/english/insurance/rebuild-value-api) and  [Energy & Climate API](https://docs.altum.ai/english/insurance/energy-and-climate-api).
* Platform updates: 
  * Added Autosearch API
  * Added PDF to Rebuild API result page
  * Optimized platform for larger screens

### June - 2025

* Platform updates:
  * Renewed interactive onboarding
  * Added free EPC API
  * Security upgrades
  * Updated NTA 8800 PDF
* [AVM API](https://docs.altum.ai/english/property-valuation-and-market/avm-api) accuracy improved
* [Photo Labelling API](https://docs.altum.ai/english/property-valuation-and-market/photo-labelling-api) now accepts larger image sizes
* [Content Value API](https://docs.altum.ai/english/insurance/contents-value-api) has been improved and new inputs have been added
* 2FA Changes
  * 2FA now works for social login users
  * Updated security on OTP code
  * Password confirmation on disabling 2FA for more security

### May - 2025

* AVM+ API has improved accuracy on predictions
* Improvements to our dataset for better predictions for [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api) and [NTA 8800 Energylabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api)

### April - 2025

* Introduced the [EPC API](https://docs.altum.ai/english/sustainability/epc-api)
* Introduced the [Contents Value API](https://docs.altum.ai/english/insurance/contents-value-api)
* [Interactive Reference API](https://docs.altum.ai/english/property-valuation-and-market/interactive-reference-api):
  * A new binary input has been added (include\_listings)
  * Added Source as an output
* [Move Data API](https://docs.altum.ai/english/property-data/move-data):
  * Description feature added to API
  * Improved sorting of value's to show the sold status when present

### March - 2025

* [AVM](https://docs.altum.ai/english/property-valuation-and-market/avm-api) and [AVM+](https://docs.altum.ai/english/property-valuation-and-market/avm+-api) API have been clearly distinguished
* [Listing Price API](https://docs.altum.ai/english/property-valuation-and-market/listing-price-api) has been added to the platform
* [AVM](https://docs.altum.ai/english/property-valuation-and-market/avm-api) data set has been updated and has more coverage now
* Date picker added to the [AVM](https://docs.altum.ai/english/property-valuation-and-market/avm-api), [AVM+](https://docs.altum.ai/english/property-valuation-and-market/avm+-api) and [Listing Price API](https://docs.altum.ai/english/property-valuation-and-market/listing-price-api) page
* Added 2FA function, and improved on security measures
* [Energylabel Insights API](https://docs.altum.ai/english/sustainability/energylabel-insights-api) has improved loading times, less memory usage. Went from 33k stratifications to 166k stratifications
* Implement API filtering based on usage plans

### February - 2025

* Introduce new API sorting based off of subscription plan
* Fixed an issue with Image not returning correcting in ObjectData Page
* Expanded our database for more accurate predictions

### January - 2025

* Enhanced security measures on the platform for user safety
* [AVM API](https://docs.altum.ai/english/property-valuation-and-market/avm-api) - Fixed an issue with not accepting 0 as an outersurface area input
* Authentication
  * Added rate limiting for login and password reset attempts
    * Login route: 5 attempts per 15 minutes
    * Password reset routes: 3 attempts per hour
  * Standardized error messages to prevent user enumeration
  * Removed reset token from API responses
  * Added proper token expiration checks
  * Invalidate tokens after use
* Application Security
  * Enhanced Content Security Policy (CSP) headers
  * Implemented strict CORS configuration
  * Added secure session and cookie settings
  * Enabled HSTS (HTTP Strict Transport Security)
  * Added XSS protection and other security headers
  * Configured secure cookie settings with SameSite and HttpOnly flags

### December - 2024

* Two new 400 error responses have been added in the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api) when the user does not provide the required parameters of a custom cost or an improvement cost.
  * "detail": "For a given custom cost make sure the parameter 'value' is provided."  
  * "detail": "For a given improvement cost make sure all four parameters: 'material', 'work', 'saving\_material' and 'saving \_work' are provided." 
* Added BENG1 current and potential outputs in the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api).
* Added "current\_estimated\_BENG1\_score" output. This output display the current estimated BENG1 score in the [NTA 8800 Energylabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api).
* Added a correction for the calculated yearly gas consumption, based on statistical averages of houses in the Netherlands. For the features "gas\_usage" in the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api) and "estimated\_gas\_usage" in the [NTA 8800 Energylabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api).
* Updated [AVM API](https://docs.altum.ai/english/property-valuation-and-market/avm-api) to the newest model with improved accuracy.
* New version of [WWS points API](https://docs.altum.ai/english/financing/wws-points-api) published.
* Optimization and improvement of search algorithm of [Autosuggestion API](https://docs.altum.ai/english/property-data/auto-suggest-api).
* Image URLs of houses for sale added to [Autosearch API](https://docs.altum.ai/english/property-data/autosearch-api).
* Two new accepted house types in the [Interactive Reference API](https://docs.altum.ai/english/broken-reference). The input houseaddition also accepts both capital and low letters.
* Updated [AVM+ API](https://docs.altum.ai/english/property-valuation-and-market/avm+-api) to the newest model with significantly improved accuracy.

### November - 2024

* The "target\_label" input has been removed from the criteria for applying additional measure information for [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api).
* Added the "renovation\_year" input in the [WWS Points API](https://docs.altum.ai/english/financing/wws-points-api) documentation.
* Removed the "source" input from the [Energy & Climate API](https://docs.altum.ai/english/insurance/energy-and-climate-api).

### October - 2024

* A new market status feature was added to the [Autosearch API ](https://docs.altum.ai/english/property-data/autosearch-api)output.
* Sandbox fixes to [Autosuggest API](https://docs.altum.ai/english/property-data/auto-suggest-api) V1 and V2.
* Added "points" output per measure in [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api). These points are being used to calculate the "comfortscore". See [Comfortscore](https://docs.altum.ai/english/sustainability/sustainability-api/comfort-score) page.
* Updated [AVM+ API](https://docs.altum.ai/english/property-valuation-and-market/avm+-api) to the newest model with more stable predictions.
* Added Outer Surface Area as input to  [AVM+ API](https://docs.altum.ai/english/property-valuation-and-market/avm+-api).

### September - 2024

* EPOnline version update from V3 to V4 for [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api), [NTA 8800 Energylabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api) en [Rebuild Value API](https://docs.altum.ai/english/insurance/rebuild-value-api).
* Updated [AVM API](https://docs.altum.ai/english/property-valuation-and-market/avm-api) to the newest model with improved accuracy.
* Free [property description generator](https://mopsus.altum.ai/property-description) added to the Platform.
* Improvements made to the [Analytics page](https://mopsus.altum.ai/dashboard/analytics) in het Platform.

### August **- 2024**

* Updated [AVM API](https://docs.altum.ai/english/property-valuation-and-market/avm-api) to the newest model with improved accuracy.
* Updated [AVM+ API](https://docs.altum.ai/english/property-valuation-and-market/avm+-api) to the newest model with improved accuracy.
* Changes in "exclude\_measure" input of [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api). Values \[1001, 1002, 2001, 2002] are now available, value \[8009] is removed.
* In [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api) the calculation of the current measures has been updated to incorporate additional measure information for better accuracy.

### **July - 2024**

* v2 is about 3x faster than v1, offering significantly improved response times.
* v2 has a slightly different data structure compared to v1.
* Data Retrieval:
  * v2 data is retrieved from BAG in Mongo.
  * v1 data is retrieved from Elastic Search.
* Removed the time\_for\_sale as input and output from the Interactive Reference API. Also, if you use one or more from the strict inputs, the API might return less than 3 reference houses.
* Added a new Sustainability flow in the Platform.
* Launch of the [WWS Points API](https://docs.altum.ai/english/financing/wws-points-api), which relates το the rental price of a property.
* Changes implemented in the Sustainability API:
  * User value for solar panel input is now correctly included in the calculation of the results per measure.
  * The calculation of the generated electricity from PV panels in the results per measure has been adjusted.
  * A bug in the calculation of the gas costs has been resolved.
  * HRe/CHP boiler has been removed as an option for installation measure.

### **June - 2024**

#### Launch of Platform 2.0, including a redesign of the dashboard

* New and Improved analytics page (Platform page).
* Added [Autosuggest API](https://docs.altum.ai/english/property-data/auto-suggest-api): Users can now access the autosuggest API from the platform usage page.
* Added Solarscan API: Users can access the Solarscan API from the platform usage page.
* Added Rebuild API: Users can also access the Rebuild API from the platform.
* Added RentalReference API: Users can now access the RentalReference API from the platform.
* The adjusted value for gas consumption now also applies to the output 'Result per Measure' in the case of a hybrid heat pump.
* The[ Location Data API](https://docs.altum.ai/english/property-data/location-data-api/changelog) has been updated with an increased coverage in the AveragePricePerSquareMeter and in AverageTransactionPrice features.
* Fixed bug in handling custom input WP solar panels causing incorrect results.
* Adjusted the calculation factor to calculate energy output of solar panels on BENG2. Lowered from 4.756 to 4.21 to better match local solar input/m2.
* Fixed bug in the calculation of the "parcel\_value" and increased its coverage [Rebuild Value API](https://docs.altum.ai/english/insurance/rebuild-value-api).
* Added three new inputs for improved search of references in the [Rental Reference API](https://docs.altum.ai/english/financing/rental-reference-api).
* Fixed a bug in the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api) where correction for gas consumption based on delivered value was not applied in the case of a hybrid heat pump. 
* Launch of [Platform](https://docs.altum.ai/english/platform) 2.0, including redesign of the dashboard.
* Launched Alpha version 4 of the [AVM+ API](https://docs.altum.ai/english/property-valuation-and-market/avm+-api) with a 20.3% improvement in accuracy for valuations with a <10% margin of error.
* Updated AVM+ API to the newest model with improved accuracy.
* Added "measures\_method" output in [NTA 8800 Energielabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api). This output indicates the method used to determine the measures. Fixed bug related to "build\_year" and "living\_room\_windows" mismatch.
* Bugs resolved with input gas and impact on hybrid heat pump calculationd and the calculation of solar panel watt peak input in [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api).
* Fixed bug occurring when outersurfacearea feature was missing in the [AVM+ API](https://docs.altum.ai/english/property-valuation-and-market/avm+-api).

**May - 2024**

* Added context on the operating assumptions of heat pumps to [Sustainability measures](https://docs.altum.ai/english/sustainability/sustainability-api/measures).
* Fixed several [Sandbox](https://docs.altum.ai/english/developers/sandbox) inconsistencies.
* Removed the features: 'natural\_system\_sub\_class\_copy', 'agricultural\_area\_copy' from the output of [Energy & Climate API](https://docs.altum.ai/english/insurance/energy-and-climate-api).
* Added two new outputs in the [Rebuild Value API](https://docs.altum.ai/english/insurance/rebuild-value-api), “parcel\_value” and “building\_value”. “parcel\_value” is the ground price based on the “outer\_surface\_area” and “building\_value” is the “woz\_value” minus the “parcel\_value”.
* Changed the names of the output features in the “Output Interpretation” page of the [AVM+ API](https://docs.altum.ai/english/property-valuation-and-market/avm+-api).
* Added two new inputs in the [Rental Reference API](https://docs.altum.ai/english/financing/rental-reference-api) for higher client interaction with the product.

**April - 2024**

* Fixed a bug in the preprocessing of the 'Volume' feature of the target house, on the [AVM+ API](https://docs.altum.ai/english/property-valuation-and-market/avm+-api).
* New optional parameter “replace\_windowframes” - used to add extra improvement costs per glass related codes 50002, 50003, 50103, 50203 when replacing glass and window frames. The costs can be seen in the PDF at [cost table](https://docs.altum.ai/v/english/apis/sustainability-api/cost-table-input) in the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api). Activate with "replace\_windowframes" : 1.

**March - 2024**

* Launch beta [Solarpanel roof scan API](https://docs.altum.ai/english/sustainability/solar-panel-roof-scan-api) - discover the maximum capacity and yield of solar panels per surface area or the ideal location for a chosen number of panels.
* Fixed issue with occasional inconsistent results caused by inconsistent processing of the new cost table in the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api).
* Addition of correction for reconstruction value on number of solar panels and type of energy label in the [Rebuild Value API](https://docs.altum.ai/english/insurance/rebuild-value-api).

**February - 2024**

* Added “definitive\_BENG2 score” output. This output display the definitive BENG2 score [NTA 8800 Energielabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api).
* Implemented a data-driven approach by utilizing known information to enhance the accuracy of the estimated measures  [NTA 8800 Energylabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api).
* Made actions for giving a better output for the housetype feature in [AVM+ API](https://docs.altum.ai/english/property-valuation-and-market/avm+-api).&#x20;
* Fixed the “valuation\_date” feature to always have as default value: today, in [AVM API](https://docs.altum.ai/english/property-valuation-and-market/avm-api) and [Interactive Reference API](https://docs.altum.ai/english/property-valuation-and-market/interactive-reference-api).
* Added two extra outputs to [Rental Reference API](https://docs.altum.ai/english/financing/rental-reference-api), the price\_per\_sqm2 and the collection\_date per reference object.
* Upgrade the [Rental Reference API](https://docs.altum.ai/english/financing/rental-reference-api). Make it more interactive and added a weight system.

**January - 2024**

* Added “protected\_cityviews” and “protected\_cityview\_names” features to the output of the [Housing features API](https://docs.altum.ai/english/property-data/housing-features-api).
* Added one more 400 Bad Request as response on the output of the [Housing features API](https://docs.altum.ai/english/property-data/housing-features-api).
* The costs of the measures have been variable since January 1, 2024 according to the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api).
* Launch of the [Rental Reference API](https://docs.altum.ai/english/financing/rental-reference-api) and [Rebuild value API](https://docs.altum.ai/english/insurance/rebuild-value-api).

**December - 2023**

* Added climate data in the output of the [Energy & Climate API](https://docs.altum.ai/english/insurance/energy-and-climate-api).
* Added “floor\_surface”, “flat\_roof\_surface”, “pitched\_roof\_surface”, “wall\_surface”, “glass\_living\_room\_surface”, “glass\_bedrooms\_surface” outputs to the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api).
* New cost table for improving measures will become active on January 1, 2024, but can now also be included with every request in the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api/cost-table-input) .
* The [Credit API](https://docs.altum.ai/english/developers/credit-api) has been launched for paid users to request the latest status of consumed API credits free of charge.
* Number of inhabitants is added as an input to the [NTA 8800 Energielabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api).
* Platform updated with new sign up flow and updates to the [Sustainability, AVM, Energy label and Building geometry pages](https://docs.altum.ai/english/platform/changelog).
* Added “city\_heating” usage current and potential outputs.  These outputs display the yearly heat consumption in GJ to the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api).
* Added “estimated\_city\_heating\_usage” output. This output display the yearly heat consumption in GJ to the [NTA 8800 Energylabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api).

**November - 2023**

* Addition of unlimited subscriptions for Sustainability API and Energylabel API to the [Platform](https://mopsus.altum.ai/#/).
* Results for [Sustainability API ](https://docs.altum.ai/english/sustainability/sustainability-api)now show electricity savings per measure next to gas savings as “electricity\_savings”.
* Platform additions with new onboarding flow for users, new onboarding questions to know customers' intent and modification of the API page to fit current design.
* A new endpoint for the[ AVM+](https://docs.altum.ai/english/property-valuation-and-market/avm+-api) is available, a faster, more accurate and better coverage market value calculation for residential properties.
* A new endpoint for a combination of location data, amenities and BAG is available in the [Location data API](https://docs.altum.ai/english/property-data/location-data-api), the current Location, Amenities and BAG API will deprecate per 1st of February 2024.
* Fixed an issue with “custom\_costs” not being processed properly in the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api).

**Oktober - 2023**

* Taxes added to the output of the [Object data API](https://docs.altum.ai/english/property-data/housing-features-api).
* Added option to input current Watt-peak output of solar panels instead of total number of solar panels in m2 to the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api) and [NTA 8800 Energy label API](https://docs.altum.ai/english/sustainability/sustainability-api).
* Added current CO2 to the output of the[ NTA 8800 Energy Label API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api).
* Total wall size and shared wall size in m2 added to output of the [Object geometry API](https://docs.altum.ai/english/sustainability/building-geometry-api).
* Ecovalue market value increase is added to output of the [Energy insights API](https://docs.altum.ai/english/sustainability/energylabel-insights-api).
* [Platform](https://mopsus.altum.ai/#/dashboard/startpagina) dashboard is optimized with an improved overview of the subscriptions.
* Unlimited usage subscriptions are added to the [Platform](https://mopsus.altum.ai/#/dashboard/startpagina) for the AVM API and Interactive Reference API.

**September - 2023**

* Added new pricing plans to the [Platform](https://mopsus.altum.ai).
* All [Platform](https://mopsus.altum.ai) product usage pages redesigned.
* [AVM report](https://mopsus.altum.ai/#/avm) added to the output of the AVM product in the Platform.
* [Platform](https://mopsus.altum.ai/#/dashboard/abonnement) customers can now use their previous payment method when creating or updating their plan.
* Deploy of new Energy insights API to retrieve insights of energy label change in terms of sale duration, price difference of asking price v.s. transaction price.
* Request current estimated Energy label with BAG ID in the [NTA 8800 Energylabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api).
* Influence of energylabel on marketability of a property now available with the [Energy insights API](https://docs.altum.ai/english/sustainability/energylabel-insights-api) (beta).
* Addition of Ventilation as measure to the input and output of the [NTA 8800 Energylabel API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api).
* Coverage of house-types has increased to serve more houses with sustainability advice in the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api).

**Augustus - 2023**

* Request sustainability advice with a BAG ID in the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api).
* Request energylabels & climate data with a BAG ID in the [Energy & Climate API](https://docs.altum.ai/english/insurance/energy-and-climate-api).
* Fix of house number additions in the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api).
* Adding improved logic for estimating current measures in the [Energy Label API](https://docs.altum.ai/english/sustainability/nta-8800-energylabel-api).
* Adding GeoJSON polygons to the output of the [Object geometry API](https://docs.altum.ai/english/sustainability/building-geometry-api).
* [Platform](https://mopsus.altum.ai/#/) added a weekly analytics e-mail and management of e-mails in Account settings.
* Update of PDF output of the [Sustainability API](https://docs.altum.ai/english/sustainability/sustainability-api) in the Platform.