# Horizon ADU: Trusted ADU Builders in Boston

> Horizon ADU designs, permits, and builds accessory dwelling units across Boston, from backyard units to in\-law suites\. We manage the full project start to finish\.

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## Pages
- [How Much Does It Cost to Build an ADU in Boston?](https://horizonadu.com/how-much-does-it-cost-to-build-an-adu-in-boston/)
- [Home](https://horizonadu.com/)
- [About Us](https://horizonadu.com/about-us/)
- [Terms \& Conditions](https://horizonadu.com/terms-and-conditions/)
- [Privacy Policy](https://horizonadu.com/privacy-policy/)

## Posts
- [Garage Conversion ADUs in Massachusetts: Rules, Costs, and Whether Your Garage Qualifies](https://horizonadu.com/blog/garage-conversion-adu-massachusetts/): Financing an ADU has evolved from where it was two years ago, but can still be confusing\. The right product depends on your equity, income, credit, and how you plan to use the space\. This guide breaks down your options so you can walk into that lender conversation knowing what to ask\.
- [Backyard ADU vs\. Home Addition: Which Is Right for Your Property?](https://horizonadu.com/blog/backyard-adu-vs-home-addition-which-is-right-for-your-property/)
- [How Much Does a 900 Sq Ft ADU Cost in Massachusetts?](https://horizonadu.com/blog/how-much-does-a-900-sq-ft-adu-cost-in-massachusetts/): Financing an ADU has evolved from where it was two years ago, but can still be confusing\. The right product depends on your equity, income, credit, and how you plan to use the space\. This guide breaks down your options so you can walk into that lender conversation knowing what to ask\.
- [How to Choose an ADU Builder in Massachusetts](https://horizonadu.com/blog/how-to-choose-an-adu-builder-in-massachusetts/): Financing an ADU has evolved from where it was two years ago, but can still be confusing\. The right product depends on your equity, income, credit, and how you plan to use the space\. This guide breaks down your options so you can walk into that lender conversation knowing what to ask\.
- [Massachusetts ADU Grant Programs in 2026: What's Actually Available](https://horizonadu.com/blog/massachusetts-adu-grant-programs-in-2026-whats-actually-available/): Financing an ADU has evolved from where it was two years ago, but can still be confusing\. The right product depends on your equity, income, credit, and how you plan to use the space\. This guide breaks down your options so you can walk into that lender conversation knowing what to ask\.

## Models
- [696sqft 1 Bedroom 1 Bath](https://horizonadu.com/boston-adu-floor-plans/696sqft-1-bedroom/)
- [550sqft 1 Bedroom 1 Bath](https://horizonadu.com/boston-adu-floor-plans/550sqft-1-bedroom/)
- [850sqft 2 Bedroom 2 Bath](https://horizonadu.com/model/850sqft-2-bedroom/)
- [750sqft 2 Bedroom 1 Bath](https://horizonadu.com/model/750sqft-2-bedroom/)
- [500sqft 1 Bedroom 1 Bath](https://horizonadu.com/model/500sqft-1-bedroom/)

## Regulations
- [Boston](https://horizonadu.com/adu-regulations-boston/boston-state/)
- [Brookline](https://horizonadu.com/adu-regulations-boston/brookline/)
- [Cambridge](https://horizonadu.com/adu-regulations-boston/cambridge/)
- [Newton](https://horizonadu.com/adu-regulations-boston/newton/)
- [Revere](https://horizonadu.com/adu-regulations-boston/revere/)

## Services
- [Garage Conversion ADUs in Greater Boston](https://horizonadu.com/adu-services/garage-conversion/)
- [Backyard Offices \& Studios in Boston](https://horizonadu.com/adu-services/backyard-offices-studios-in-boston/)
- [Detached ADUs in Boston](https://horizonadu.com/adu-services/detached-adus-in-boston/)
- [In\-Law Suites \& Granny Flats in Boston](https://horizonadu.com/adu-services/in-law-suites-granny-flats-in-boston/)
- [Basement ADUs in Boston](https://horizonadu.com/adu-services/basement-adus-in-boston/)

## Categories
- [Uncategorized](https://horizonadu.com/category/uncategorized/)
- [ADU as an Investment](https://horizonadu.com/category/adu-as-an-investment/)

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