Average Portland Addition Costs
Source: Remodeling Magazine
master suite addition midrange
Add 24x16-foot master bedroom suite over crawlspace
Include walk-in closet/dressing area, freestanding soaker tub, separate 3x4- foot ceramic tile shower, and double-bowl vanity with solid-surface countertop
Carpet the bedroom floor; put tile in bath
Paint walls, ceiling, and trim. Install general and spot lighting, exhaust fan
master suite addition upscale
Add 32x20-foot master bedroom suite over crawlspace
Add spacious sleeping area with lounging/sitting area adjacent to large master bath
Custom bookcases and built-in storage
High-end gas fireplace with stone hearth and custom mantle
Walk-in closet/dressing area with natural light, mirrors, and linen storage
Bathroom includes walk-in shower with dual-shower system, stone walls and floor, and custom frameless glass enclosure
Freestanding soaker tub
Two sinks in separate custom vanities with stone countertops and large mirrors
Partitioned area for luxury one-piece toilet
Outside the bath, add 5-foot-long hospitality center with bar sink, undercounter refrigerator, custom cabinetry, stone countertop, and microwave
Include soundproofing, in-floor heating, custom wall finishes and hardware, general and spot lighting, and high-end lighting controls
bathroom addition midrange
Add 6x8-foot bathroom over crawlspace with poured concrete walls
Cultured-stone vanity top with molded sink; standard chrome faucets
30x60-inch white fiberglass tub/shower with ceramic tile surround
Single-lever temperature and pressure-balanced faucet
White low-profile toilet
General and spot lighting; electrical wiring to code; mirrored medicine cabinet; linen storage closet or cabinet; painted trim
Ceramic tile floor
bathroom addition upscale
Add new 100-square-foot master bath to existing master bedroom over crawlspace
Include 42x42-inch neo-angle shower with ceramic tile walls, accent strip, recessed shower caddy, body-spray fixtures, and frameless glass enclosure
Freestanding soaker tub with high-end faucets
Stone countertop with two sinks; two mirrored medicine cabinets with lighting
Compartmentalized commode area with one-piece toilet and a humidistat-controlled exhaust fan
Matching ceramic tiles on the floor, laid on diagonal with ceramic tile base molding
General and spot lighting and waterproof shower fixture
Cabinetry has custom drawer base, wall cabinets
Electric in-floor heating
Case Study 1: Master bath and living room
- Master suite addition on the main floor
- Exposed-beam patio
- Front porch addition
- Larger living room
- Concrete patio, hot tub space and walkways
- New flooring throughout the main level of the home
- Cost: $359,103
Case Study 2: Addition and Kitchen remodel
- Additional SF
- Deck with timber framed patio cover
- Completely new kitchen with gas range
- New flooring throughout home
- Hot tub deck, screen and hookup
- Cost: $269,457
The value of an addition
Studies show homeowners can realize nearly a 70% return on their investment for adding a master suite and up to a 75% return for bathroom additions.
A professionally built addition not only gives you more square footage, it enhances the long-term value of your home.
"We couldn't be more happy with the finished product. We have been enjoying our new living space for a full year now and love it just as much as the day it was completed!"
Robert and Diane / SW Portland Kitchen Remodel
"We are thrilled, and the work is above our expectations! We're extremely happy with the quality and the processes Lamont Bros. had in place to complete our goals. All workers were friendly, polite, communicated effectively, were here on time, and conveyed the status of the job at all times."
Mark and Wilda / Oregon City Portland Kitchen & Bathroom Remodel
"I wish I could leave a higher rating than 5 stars! These guys set the bar extremely high in terms of customer service and quality work. Joseph is incredibly knowledgeable and helpful and helped me do some structural analysis on my house. Everyone I've worked with at Lamont Bros. is awesome! I will definitely use these guys again!"
Dan / SE Portland Multiple Projects
"After working with Joseph & his crew from the Lamont Bros., we are enjoying a beautiful new kitchen. We appreciated the design process & the hard-working team who completed our work. Special kudos to Rebecca who painstakingly mounted our tile back splash -- first thing everyone notices!"
Kathy / SE Portland Kitchen and Outdoor Space
"We had a tree fall on our house at the worst possible time of year. We contacted Lamont Bros. and they responded immediately. We had a quote in a very reasonable time frame, and they dealt with all the insurance issues. Lamont Bros. managed to get the job done when they said it would be done. And done right the first time."
Dan / Clackamas County Structural Repair
"After looking for a good local company to add a craft room to our ranch style home, we found Lamont Bros and couldn't be happier with the quality of the work and performance of the crew. The design Joseph came up with was better than we hoped for. We highly recommend this company to anyone looking for a good fair deal. Thank you Joseph and crew!"