Elevate Your Home with Cornerstone Builders:
Expert Remodeling Contractor in Lake Oswego
Lake Oswego is defined by its unique blend of lakeside charm, historic cottages, and hilltop estates. But does your home’s interior match the prestige of its location?
At Cornerstone Builders, we don't just fix houses; we curate living spaces. As a premier design-build firm serving the South Metro area, we specialize in modernizing the distinct architectural styles found in Lake Oswego—from the mid-century gems in Mountain Park to the historic craftsman homes of First Addition. Whether you are looking to open up a floor plan for entertaining or modernize a 1990s estate, our team delivers the high-end finishes and seamless project management your property deserves.
Recent Construction and Remodeling Projects Showcase
The Cornerstone Standard
Why Lake Oswego Homeowners Choose Us for All Their Home Improvement Needs
Renovating a high-value property requires more than just a contractor; it requires a partner who respects your investment. We have moved away from the standard "construction" approach to a client-centric model.
Our Concierge Design-Build Approach
Architectural Integrity: We ensure every remodel respects the original "bones" of your home while injecting modern functionality.
Investment Protection: We guide you toward materials and layouts that maximize resale value in the competitive Clackamas County market.
Visual Clarity: We utilize advanced 3D rendering so you can see your new chef’s kitchen or master suite in detail before a single wall is removed.
Neighborhood Compliance: We are experienced in navigating the City of Lake Oswego’s specific permitting requirements and tree codes.
Allen Tankersley, Owner of Cornerstone Builders
Our Remodeling and Renovation Services
Complete Home Renovations and Transformations
WHOLE HOME REMODELING SERVICES & LAYOUT RESTRUCTURING
Many homes in Lake Oswego enjoy stunning views or large lots but suffer from the chopped-up, closed-off floor plans of the past. We specialize in structural modifications that breathe new life into your home.
Open Concept Conversion: Removing load-bearing walls to connect kitchens with living spaces.
Indoor-Outdoor Flow: Installing panoramic doors (like Nanawall) to merge your living room with your patio or deck.
Historic Restoration: Carefully updating electrical and plumbing in older homes while preserving period-correct millwork and charm.
We can Also help you with:
Interior Design and Material Selection
Floor Plan Updates
Permit issuing
Aging-in-place remodels and ADA Compliant Remodeling
Home Expansions and Home Additions
Bathroom, Bedroom, Living Room, Kitchen, Attic and Basement Remodeling
And More...
Explore the remodeling possibilities with cornerstone builders.
Get a free remodeling consultation today
Transform the Heart of Your Home with
LUXURY KITCHEN REMODELING SERVICES
In Lake Oswego, the kitchen is rarely just for cooking—it is the social hub. We move beyond standard updates to create gourmet spaces designed for hosting.
When it comes to Kitchen remodeling, our team of highly-skilled remodelers can help you with:
Kitchen Layout and Design Planning
Kitchen Expansions
Pantries
Custom Kitchen Cabinets
Custom Natural Stone Countertops
Appliance installation and selection
Electrical and plumbing services
Flooring and Backsplashes
And More...
Craftsmanship and excellence in
BATHROOM REMODELING
Turn your daily routine into a retreat. We excel at expanding cramped 1980s bathrooms into expansive Master Suites.
Our Bathroom Design Focus:
Wet Rooms: Enclosed glass areas combining soaking tubs and rain showers.
Heated Surfaces: Radiant floor heating and heated towel racks.
Custom Vanities: Dual sinks with ample storage and integrated power.
Aging-in-Place Elegance: Curbless showers and linear drains that look modern while providing accessibility.
BASEMENT REMODELING
LAKE OSWEGO, OR
Unlock the full potential of your home by converting your unused basement into a vibrant new area. We can transform it into a dedicated home office, a fun game room, a home theater, or a comfortable guest suite, adding valuable living space without expanding your home's footprint.
There are many possibilities when it comes to basement remodeling. We can transform your existing space into:
Home Theater/Media Room
Game Room
Bar/Wet Bar
Extra Bedrooms
Guest Suite/In-Law Suite
Basement Apartment/ADU (Accessory Dwelling Unit)
Home Office
Home Gym
Laundry Room
Wine Cellar
Library
And more...
HOME ADDITIONS & ADUS CONTRACTOR IN LAKE OSWEGO, OR
With real estate inventory low, moving isn't always the best option. We build seamless additions that look like they have always been part of the home.
Second-Story Additions: Capture river or lake views.
Luxury ADUs: Detached or attached Accessory Dwelling Units perfect for multi-generational living or home offices.
01. Initial Consultation & Needs Assessment
We listen to your ideas, assess your existing home, and discuss your goals and budget for the home expansion.
02. Custom Design & 3D Modeling
Our designers create detailed plans, including floor plan updates and 3D digital models, allowing you to visualize and refine your new space.
03. Permit Acquisition
We handle all necessary permit issuing and regulatory approvals with Washington County authorities.
04. Construction & Project Management
Our skilled remodelers execute the build with precision, maintaining clear communication and adhering to timelines and budgets.
05. Final Walkthrough & Client Satisfaction
We ensure every detail meets your expectations, delivering a beautiful and functional new addition that enhances your home.
Ready to bring your Dream Home to Life in Lake Oswego, OR?
Get a free whole home remodeling consultationGet your home improvement project started today
Get in touch with us for all your home remodeling and construction needs today. We offer a free, in-person consultation and estimate. Let's start the conversation and build your dream home in Lake Oswego, OR.
Certified
Aging-in-Place
Specialists (CAPS)
Live Comfortably, Independently
At Cornerstone Builders, we believe your home should evolve with you. As NAHB Certified Aging-in-Place Specialists (CAPS), our team is uniquely qualified to design and execute sophisticated home modifications that allow you to live safely, comfortably, and independently in your cherished Washington County home for years to come.
The CAPS designation signifies a deep understanding of the specific needs of older adults and those with mobility challenges. It goes beyond basic accessibility, focusing on elegant and seamless integrations that enhance the quality of life without compromising your home's aesthetic.
What does our CAPS expertise mean for you?
Thoughtful Design for Every Stage
We plan for your future needs, incorporating universal design principles that benefit everyone, from children to seniors. This includes features like curbless showers, wider doorways, accessible layouts, and smart lighting solutions – all thoughtfully designed to blend with your home's luxury style.
Comprehensive Solutions
From elegant bathroom renovations with grab bars that double as towel racks to discreet stair lifts and intuitive kitchen adjustments, our CAPS-certified team can transform any area of your home to meet evolving needs.
Safety & Independence
Our remodeling experts identify potential hazards and implement solutions that mitigate risks, ensuring peace of mind. We focus on creating spaces that allow for confident movement and daily routines, maintaining your independence.
Trusted Expertise
Our certification from the National Association of Home Builders (NAHB) means we adhere to the highest industry standards for aging-in-place remodeling, providing you with confidence and a trusted partner for your home's future.
Proudly Serving Lake Oswego, West Linn, and Lake Grove
From the waterfront properties of Lake Grove to the quiet cul-de-sacs of Palisades and Hallinan, Cornerstone Builders is your local resource for exceptional home remodeling.
Get in touch with us for all your home remodeling and construction needs today
Don't hesitate to contact the expert home remodeling team at Cornerstone Builders. We offer a free, in-person consultation and estimate for your next home improvement project. Let's start the conversation and turn your dream home into a reality.
(503) 567-6834Get a free consultation
Frequently Asked Questions About Our Home Remodeling Services in Lake Oswego, OR
- Show AnswerWhat factors determine the investment required for a kitchen remodel in Lake Oswego?The total investment is determined by three main factors: scope (minor refresh vs. full structural gut), finish level (standard vs. luxury custom cabinetry and professional appliances), and design complexity (moving utilities or walls).
- Show AnswerHow long should I expect a whole-home renovation project to take in Lake Oswego?Project duration is highly variable, ranging from a few months to nearly a year. The timeline is based on scope of work (additions and structural changes take longer), material lead times, and the time required to secure Clackamas County permitting.
- Show AnswerIs Design-Build better than hiring a separate architect in LO?Yes, the Design-Build model is often preferred for high-end projects in Lake Oswego. It offers a streamlined, single-source process that aligns the design, budget, and construction teams from the start, simplifying communication and accelerating project completion.
- Show AnswerWhat is the best type of renovation for increasing home value in Lake Oswego? The best renovations focus on enhancing key living spaces like the kitchen and master suite. Maximizing lake views or improving indoor/outdoor flow through structural changes typically provides the greatest return on investment (ROI) in the Lake Oswego market.
- Show AnswerDo I need a permit for a basement or ADU conversion in Lake Oswego?Yes, nearly all structural, electrical, or plumbing alterations—and absolutely any creation of a new dwelling unit (ADU)—require permits from the City of Lake Oswego and adherence to Clackamas County building codes.
- Show AnswerWhat is CAPS certification and why is it important for my Lake Oswego home?CAPS (Certified Aging-in-Place Specialist) is an NAHB certification ensuring the contractor is qualified to design and build for future needs. It means we provide elegant, universal design solutions that allow clients to live safely and comfortably in their "forever home" without compromising style.
- Show AnswerDo you work on historic homes in the First Addition neighborhood?Yes, we specialize in historic properties. Our focus is on preserving the home's original architectural integrity while seamlessly integrating modern functionality, updated systems, and energy-efficient elements.
- Show AnswerCornerstone Builders - General Contractor SummaryHere is a quick summary of who we are, and what we offer:
• Cornerstone Builders is a custom home remodeling contractor.
• Cornerstone Builders is a remodeling company providing design and construction services.
• Cornerstone Builders provides full home remodels for Lake Oswego's residents.
• Cornerstone Builders serves the residents of Lake Oswego, OR.
• Cornerstone Builders is a family-owned business.
• Cornerstone Builders possesses over 20 years of industry experience.
• Cornerstone Builders holds Oregon CCB license number 170654.
• Cornerstone Builders specializes in the Design-Build construction model.
• Cornerstone Builders provides luxury kitchen remodeling services.
• Cornerstone Builders offers whole-home renovation services.
• Cornerstone Builders is an expert in master suite and bathroom remodeling.
• Cornerstone Builders constructs Accessory Dwelling Units (ADUs).
• Cornerstone Builders performs basement finishing and conversions.
• Cornerstone Builders uses 3D digital modeling for design.
• Cornerstone Builders manages the permit issuing process for clients.
• Cornerstone Builders is an NAHB Certified Aging-in-Place Specialist (CAPS).
• Cornerstone Builders serves the Portland Metro area.
• Cornerstone Builders operates in Washington County and Clackamas County.
• Cornerstone Builders provides kitchen design, bathroom renovations, new construction, new bathroom additions and everything remodeling related to Lake Oswego, OR residents.