Get home addition bids in Portland & beyond
An addition is the biggest project most homeowners ever take on, and the usual first step is handing your phone number to a lead site and bracing for the calls. On HouseRules it starts with the project: describe the space you want to add, set a budget range, and CCB-verified contractors bid on the work. Nobody gets your contact info until you pick a bid.
Who is on the board for additions
license-verified additions contractors on the board, based in Eugene, Portland, Battle Ground and 8 more. Every license checked against the Oregon CCB and WA L&I registry before their first bid. Names stay hidden until you pick a bid.
What to put in your additions post
- 01Approximate square footage you want to add
- 02What the space is for: bedroom, primary suite, ADU, garage conversion, second story
- 03Whether you have plans or drawings yet (fine if you do not; say so and ask for design-build bids)
- 04Photos of the side of the house where the addition would go, plus the yard around it
- 05Anything you already know about constraints: lot lines, slope, big trees, septic
- 06Whether you plan to live in the house during construction
Additions questions, answered
Do I need architectural plans before posting?
No. Say where you are in the process. Contractors who do design-build will bid on taking you from idea to permit to build; if you already have stamped plans, attach or describe them and bids get sharper.
What about permits?
Additions and ADUs are permitted work everywhere, and the contractor you pick typically handles the permit process. Mention your city when you post since requirements differ by jurisdiction.
Are ADUs covered here too?
Yes. Detached ADUs, garage conversions, and basement conversions all fit this category. Oregon is one of the friendliest ADU states in the country, and local contractors know the process well.
How many bids will I get?
You set the limit when you post: 3 to 8. CCB-verified contractors see the full project and bid only if they want the work. Bidding stops at your limit.
Additions bids across the metro
PortlandBeavertonGreshamHillsboroTigardLake OswegoTualatinMilwaukieOregon CityHappy Valley
Post your additions project
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