--- title: "Leff Construction Design/Build — Design-Build Firms | Houzz" canonical_html_url: https://www.houzz.com/professionals/design-build-firms/leff-construction-design-build-pfvwus-pf~755018885 markdown_url: https://www.houzz.com/md/professionals/pf~755018885.md entity_type: LocalBusiness business_name: "Leff Construction Design/Build" category: ["Design-Build Firms"] image: https://st.hzcdn.com/fimgs/16d3d4030fd7d452_9203-w400-h400-b0-p0--.jpg address: "6791 Sebastopol Avenue, Suite 140, Sebastopol, California 95472, United States" latitude: 38.3941 longitude: -122.8433 phone: "(707) 823-4899" website: http://www.leffdesignbuild.com rating: 4.9 review_count: 27 best_of_houzz_awards: 8 followers: 206 last_updated: 2026-08-07 --- # Leff Construction Design/Build Original Houzz profile: [Leff Construction Design/Build](https://www.houzz.com/professionals/design-build-firms/leff-construction-design-build-pfvwus-pf~755018885) ## Professional summary - **Primary category:** Design-Build Firms - **Location:** Sebastopol, CA - **Serves:** Santa Rosa, Petaluma, Rohnert Park, Windsor, Healdsburg, Cotati, Larkfield-Wikiup, Sebastopol, Roseland, Guerneville, Forestville, Camp Meeker, Penngrove, Graton, Bodega Bay, Occidental, Glen Ellen, Monte Rio, Kenwood, Bodega, Fulton, Dillon Beach, Tomales, Bloomfield, Bennett Valley, Duncans Mills, Oakmont, Valley Ford, Villa Grande - **Houzz rating:** 4.9 out of 5 (27 reviews) - **Best of Houzz:** 8 awards (2015–2023), for Service. ## About ### Houzz Badges - Star Houzzer - Houzz Influencer - Recommended on Houzz - 1,000 Ideabook Saves LEFF Design Build - Celebrating \*\*46 Years\*\* in Sonoma County. Founded in 1978 by David Leff, the company established itself as an early adopter of green and sustainable building processes when it built the first solar multi-family project in Cotati, California. During the 1980’s, David and his father Irwin Leff continued to develop and build environmentally responsible and resource-efficient residential subdivisions. At the same time, they began to increase their focus on building and remodeling for local homeowners. This re-direction brought with it a new set of challenges: how to help clients discover the underlying problems with their home and then design and build a beautiful and functional solution in the most time-efficient, cost-effective and stress-free manner. Meeting this challenge over many years is what has formed the Leff Design Build process and defined their core mission: to make every project a superior client experience. With a ‘one-point-of-contact’ approach, all points of communication and responsibility rest with the Leff team of architects, designers, estimators, project managers and field crew. The team welcomes every client and includes them as an essential element of the process. Communication and accountability between all parties is transparent and consistent. The result: a custom project delivered on time and on budget, and very happy clients. Decades later, Leff Construction Design Build enjoys its nationally recognized reputation for award-winning, whole-home remodeling and new home projects. From historic restorations that preserve existing materials, to new home designs that achieve zero-net energy, LEFF continues to integrate sustainable principals with new technologies that produce beautiful, functional homes that perfectly reflect their owner’s lifestyles. ### Services Provided - Home Remodeling - Custom Homes - New Home Construction - Kitchen Remodeling - Home Additions - Bathroom Remodeling - Kitchen Design - Home Extensions - Bathroom Design - Architectural Design - Building Design - Deck Building - Architectural Drawings - House Plans - Outdoor Kitchen Construction - 3D Rendering - Energy-Efficient Homes - Garage Building - Universal Design - Green Building - Sustainable Design - Porch Design & Construction - Sunroom Design & Construction - Historic Building Conservation - Site Planning - Structural Engineering - Construction Drawings - Custom Cabinets ### Areas Served - Santa Rosa - Petaluma - Rohnert Park - Windsor - Healdsburg - Cotati - Larkfield-Wikiup - Sebastopol - Roseland - Guerneville - Forestville - Camp Meeker - Penngrove - Graton - Bodega Bay - Occidental - Glen Ellen - Monte Rio - Kenwood - Bodega - Fulton - Dillon Beach - Tomales - Bloomfield - Bennett Valley - Duncans Mills - Oakmont - Valley Ford - Villa Grande ### Typical Job Cost $200,000 - 5,000,000 LEFF offers an alternative to the traditional design-bid-build project delivery method (with separate entities, separate contracts, separate work). Instead, the LEFF Design Build Team works under a single contract with you to provide superior design and construction services. We design to your budget. Design Build is proven a more time efficient, cost effective and accountable process. ## Business Details | Field | Value | | --- | --- | | Business Name | Leff Construction Design/Build | | Address | 6791 Sebastopol Avenue, Suite 140, Sebastopol, California 95472, United States | | Phone | (707) 823-4899 | | Website | http://www.leffdesignbuild.com | | License Number | 521133 | | Followers on Houzz | 206 | **Social profiles:** - Facebook — http://www.facebook.com/pages/leff-construction/139183816111967 - X (Twitter) — https://twitter.com/leffconst - LinkedIn — http://www.linkedin.com/company/leff-construction-design-build - Blog — http://www.leffconstruction.com/blog ## Contact - **Houzz profile:** [Leff Construction Design/Build](https://www.houzz.com/professionals/design-build-firms/leff-construction-design-build-pfvwus-pf~755018885) - **Website:** http://www.leffdesignbuild.com - **Phone:** (707) 823-4899 ## Credentials **Certifications & Awards** - 2017 NARI "Remmie" Award-1st Place: Whole House Remodel over $500K; 2017 NARI "Remmie" Award-1st Place: Best Whole House Remodel over $1M; 2017 GuildMaster w/Distinction Award; Remodeling's Big 50; SFBA NARI 2011 and 2013 Remmies 1st place; Design+Build 2012 Design Excellence Award. - **Best of Houzz:** 8 awards (2015–2023), for Service. **Affiliations** - [National Association of the Remodeling Industry](https://www.houzz.com/professionals/schools-and-organizations/national-association-of-the-remodeling-industry-pfvwus-pf~1954795205) - [Rebuilding Together](https://www.houzz.com/professionals/schools-and-organizations/rebuilding-together-pfvwus-pf~814463327) ## Reviews **Overall rating: 4.9 out of 5 — 27 reviews** *Aspect averages:* - Work Quality: 42.0 - Communication: 42.0 - Value: 42.0 ### Reviews **★★★★★ — Ross Bostock, Aug. 2022** > We worked with Leff Construction to design + build our living room addition in Sebastopol. Highly recommend this team: consultative, communicative, reliable, and our end product is fantastic! If you're looking for a headache free construction project, talk with Leff. **Comment from Leff Construction Design/Build:** > We're so pleased that you are enjoying your lovely addition Ross! It was a complete joy to work with you to create a welcoming and beautiful space for you and your sweet new little family. And by the way - BIG congratulations! **★ — billiefaullner58, May 2022** > Beware! We were $8,600 out of pocket before getting an estimate. Very nice people, but wow! > > We have a solarium needing to be replaced/remodeled. We met with Leff because they are design/build so it seemed like a good idea to have one company do the whole thing from design to permit to construction. > > At the initial meeting we were asked what our budget was. We had no idea what a project like this would cost. We said that our neighbor up the street just did an addition (acting as his own contractor) for under $100K so we were hoping the thing would cost less than $150K. We were told it would likely be closer to $200K. A guy came out to take measurements which were entered into a CAD file. > > We saw some nice looking sketches that were done in CAD and eventually told that the total price for design, plan, and building the new solarium would be $350K - $400K. At this point we were out $8,600 so we said, thanks and asked for the CAD files (thinking that at least having the measurements in CAD could help save money with the next contractor). We were told, "Sorry, that's intellectual property." > > We now have a new contractor with an excellent reputation who charged us $zero for a cost estimate of $60K - $80K. **★★★★★ — Byron Rouda, Dec. 2021** > They are very honest and straightforward. Project came in on budget and on time. Entire team very pleasant and helpful. > > Byron Rouda > 120 Hoff Rd., > Kenwood, Ca. **Comment from Leff Construction Design/Build:** > Thank you so much, Byron, for being a very valued client! We really enjoyed working on your project and hope you love it as much as we do!! Enjoy, and Happy Holidays!! Elaine@LEFF **★★★★★ — Byron Rouda, Nov. 2021** > Remodel came in on time and within budget. Entire Leff team very professional and courteous. Always explained everything in detail with no surprises. > Byron Rouda - 120 Hoff Rd., Kenwood **★★★★★ — ckasulka, March 2021** > The Leff Team converted a old shed in my backyard into a livable oasis. From concept to completion they took care of everything from working with the city for permits, building everything to code, all the details for a smart design plan, project management and some of the finest craftsmanship I’ve ever seen during construction. It was a complete transformation and I couldn’t be more pleased on how it turned out. The team was terrific to work with. They came up with so many smart ideas that were so much better than I could have dreamed of. I am a raving fan and couldn’t feel more proud to give them such a glowing review. If I could give them more than 5 stars I would. **★★★★★ — HU-384211857, Aug. 2020** > Our home remodel turned out beautifully. Leff did an addition for us, remodeled the kitchen, added 2 fireplaces & replaced the roof, doors,, windows and flooring on a home that needed some serious TLC. The result was so breathtaking, we feel like we live in a design magazine. We highly recommend them. **★★★★★ — David Joslyn, Feb. 2020** > Leff Construction rebuilt our home after we lost it in the Tubb's fire of 2018. The bid was accurate (very important for financing), The project management was excellent--I don't think there was ever a week that crew and subcontractors weren't here. In short, they got the job done with efficiency and incredibly high quality. The design team was excellent. I can honestly say that there is not one thing about our beautiful new home that I would change. Thank you Leff Construction!! **★★★★★ — Erin Nathan, Dec. 2019** > Leff did a fantastic job on my addition and remodel. They did high quality work, on schedule and within budget. Great communication throughout! Highly recommended!! **★★★★★ — Janet Tonkin, July 2019** > I was very happy with the whole process of dealing with LEFF. They helped me get new bathrooms that are really lovely. Michele, Candice and Heather were all very helpful. **★★★★★ — User, April 2018** > I have had the opportunity to work with the Leff team on multiple projects and am consistently impressed with their professionalism, commitment to quality, and team approach to projects. **★★★★★ — Buford Garrett, Feb. 2018** > They turned a 70's bathroom and kitchen into a unreal ( Awesome) remodel . The walk in shower is like going to a spa............ **Comment from Leff Construction Design/Build:** > We're so glad you like it!! We really enjoyed transforming the kitchen and bath to exactly what you wanted and are very happy you're happy! Cheers!! from Team LEFF **★★★★★ — Andrea Coburn, Sept. 2017** > We hired Leff Construction for a whole home remodel. We were looking for a design team, architect, engineer, and a contractor under one umbrella to look at the project as a whole, help us evaluation cost, and stay realistic with our remodel and design choices. They exceeded our expectations throughout the project. Leff has a very talented staff that is responsive and puts the client first. We never felt like we were alone in the process. Not only that, the quality of the work and the attention to detail are exceptional. We are so pleased with our home. It's more beautiful than we even imagined or could have obtained with another team. Thank you, Leff team! **Comment from Leff Construction Design/Build:** > THANK YOU, Andrea! It was our pleasure to work with you! > > We are so happy you love your new remodel...it does look beautiful! (I'll be posting the photos soon). > > Congratulations and thank you for being a very valued LEFF client. > > Sincerely, > Elaine Lucia > Marketing Director > LEFF Construction Design Build ## Selected projects - [The Refined Pour](https://www.houzz.com/hznb/projects/the-refined-pour-pj-vj~7614194) - Location: Not specified - Photos: 8 - [Glen Ellen Whole Home Transformation](https://www.houzz.com/hznb/projects/glen-ellen-whole-home-transformation-pj-vj~6360840) - Location: Not specified - Photos: 21 - [New Custom Fire Rebuild in Santa Rosa California](https://www.houzz.com/hznb/projects/new-custom-fire-rebuild-in-santa-rosa-california-pj-vj~6300201) - Location: Not specified - Photos: 19 - [Award Winning Lake Sonoma Family Retreat](https://www.houzz.com/hznb/projects/award-winning-lake-sonoma-family-retreat-pj-vj~6312359) - Location: Not specified - Photos: 15 - [Contemporary New Home in Glen Ellen, Sonoma Wine Country, CA](https://www.houzz.com/hznb/projects/contemporary-new-home-in-glen-ellen-sonoma-wine-country-ca-pj-vj~2326925) - Location: Glen Ellen, CA - Photos: 13 - [Kenwood Wine Country Kitchen Remodel](https://www.houzz.com/hznb/projects/kenwood-wine-country-kitchen-remodel-pj-vj~6306193) - Location: Not specified - Photos: 8 - [Sonoma County Oakmont Fire Rebuild](https://www.houzz.com/hznb/projects/sonoma-county-oakmont-fire-rebuild-pj-vj~6307399) - Location: Not specified - Photos: 18 - [Santa Rosa Light and Bright Kitchen Remodel](https://www.houzz.com/hznb/projects/santa-rosa-light-and-bright-kitchen-remodel-pj-vj~6343028) - Location: Not specified - Photos: 9 - [Sebastopol Remodel and Addition](https://www.houzz.com/hznb/projects/sebastopol-remodel-and-addition-pj-vj~6304767) - Location: Not specified - Photos: 10 - [Award-Winning Victorian Remodel in Petaluma, CA](https://www.houzz.com/hznb/projects/award-winning-victorian-remodel-in-petaluma-ca-pj-vj~3901391) - Location: Sebastopol, CA - Photos: 20 - [Santa Rosa Oakmont Hillside Universal Design Whole Home Remodel](https://www.houzz.com/hznb/projects/santa-rosa-oakmont-hillside-universal-design-whole-home-remodel-pj-vj~2402890) - Location: Santa Rosa, CA - Photos: 20 - Description: UNIVERSAL DESIGN NEEDS: The clients had specific goals in addition to the increase in floor area. In anticipation of their own aging and that of their friends, the home had to be made completely barrier-free for themselves and their less mobile or wheelchair-bound friends and family members. To accommodate overnight visitors, a guest suite was designed and built in the new lower-level. Because the main living areas did not allow a full view of the outside views, the design included rebuilding th… - [Santa Rosa Bennett Valley Whole Home Remodel](https://www.houzz.com/hznb/projects/santa-rosa-bennett-valley-whole-home-remodel-pj-vj~2402877) - Location: Santa Rosa, CA - Photos: 16 - Description: The owners of this 4673 sq.ft. home – built in 1968 – purchased it while living in Indiana; they planned to renovate the house before relocating to the new state for their retirement. The home is nestled among trees on a hillside bordering a state park; a valley and distant mountains make for a stunning vista. Hiking, golf and many trails surround this property, which made it a perfect location for the active, healthy lifestyle the clients wanted to share with family, friends and their dogs. To… - [Sonoma Coast Whole Home Remodel, Bodega Bay, CA](https://www.houzz.com/hznb/projects/sonoma-coast-whole-home-remodel-bodega-bay-ca-pj-vj~1816029) - Location: Bodega Bay, CA - Photos: 19 - Description: This multi-level vacation home in the small, northern California coastal town of Bodega Bay, is where the owners (married for 40 years and recently retired) "come to relax." They wanted a comfortable, beautiful space to welcome family. High on a hill overlooking Doran Beach, each room offers a view of the sky, the hills, the beach, or the ocean. The Leff Design Build Team spends the design and planning phase focusing in on client needs. Listening deeply, they help clients discover underlying pro… - [Whole Home Remodel in Healdsburg, Sonoma County, CA](https://www.houzz.com/hznb/projects/whole-home-remodel-in-healdsburg-sonoma-county-ca-pj-vj~2009216) - Location: Healdsburg, CA - Photos: 14 - [New Custom Home, Open and Spacious, in Occidental, Sonoma County, CA](https://www.houzz.com/hznb/projects/new-custom-home-open-and-spacious-in-occidental-sonoma-county-ca-pj-vj~84986) - Location: Occidental, CA - Photos: 5 - [Sonoma County Whole-Home Remodel, Sebastopol, CA](https://www.houzz.com/hznb/projects/sonoma-county-whole-home-remodel-sebastopol-ca-pj-vj~2047389) - Location: Sebastopol, CA - Photos: 17 - [Whole Home Remodel in the Redwoods, Santa Rosa, Sonoma County, CA](https://www.houzz.com/hznb/projects/whole-home-remodel-in-the-redwoods-santa-rosa-sonoma-county-ca-pj-vj~2326965) - Location: Santa Rosa, CA - Photos: 6 - [Guerneville Contemporary Kitchen Remodel](https://www.houzz.com/hznb/projects/guerneville-contemporary-kitchen-remodel-pj-vj~2402862) - Location: Guerneville, CA - Photos: 7 - Description: The owners of the home reside in a major metropolitan city; they purchased this property in a rural, river town as a weekend retreat. The couple entertain regularly, and both love to cook. The original kitchen layout sectioned the kitchen in half, with one side of the room for a dining table. This left little space for two people to cook together. The clients desired an open kitchen plan that would allow both of them to create meals and entertain without being separated from guests. The fireplac… - [Award-Winning, Contemporary New Home in Geyserville, Sonoma County, CA](https://www.houzz.com/hznb/projects/award-winning-contemporary-new-home-in-geyserville-sonoma-county-ca-pj-vj~85013) - Location: Geyserville, CA - Photos: 8 - Description: Award-winning contemporary new home in Geyserville. - [Santa Rosa Whole House Remodel and Universal Design](https://www.houzz.com/hznb/projects/santa-rosa-whole-house-remodel-and-universal-design-pj-vj~1230824) - Location: Santa Rosa, CA - Photos: 42 - Description: This Colonial style house was built in 1980 with little to no prior remodeling. The goal for the first level of the house was to open up the divided rooms to create more of a great room feeling. After removing some walls and reconfiguring the layout, the kitchen, formal dining room and family room are now working together as one wonderful entertaining space. The home is open, brighter and welcoming without losing the definition of each room. After remodeling the lower story the prior year, the h… [See all 28 projects](https://www.houzz.com/professionals/design-build-firms/leff-construction-design-build-pfvwus-pf~755018885) ## Ideabooks - [Toilet Cabinet](https://www.houzz.com/ideabooks/95307870/list/toilet-cabinet) — 6 ideas - [Spring 2017 - Pop of Color](https://www.houzz.com/ideabooks/80051388/list/spring-2017-pop-of-color) — 38 ideas - [Black](https://www.houzz.com/ideabooks/70111123/list/black) — 5 ideas - [Black Windows and Doors](https://www.houzz.com/ideabooks/67988201/list/black-windows-and-doors) — 6 ideas - [Islands](https://www.houzz.com/ideabooks/67987517/list/islands) — 7 ideas - [Storage - Closets](https://www.houzz.com/ideabooks/70111142/list/storage-closets) — 3 ideas - [Shower and Bath - Niches](https://www.houzz.com/ideabooks/68026381/list/shower-and-bath-niches) — 14 ideas - [Shower and Bath - Frameless Surround](https://www.houzz.com/ideabooks/67987823/list/shower-and-bath-frameless-surround) — 11 ideas - [Mudrooms](https://www.houzz.com/ideabooks/68026288/list/mudrooms) — 6 ideas - [Bars](https://www.houzz.com/ideabooks/74511930/list/bars) — 4 ideas - [Bath - Stand alone tub](https://www.houzz.com/ideabooks/69568981/list/bath-stand-alone-tub) — 7 ideas - [Full Backsplash](https://www.houzz.com/ideabooks/68067844/list/full-backsplash) — 6 ideas - [Tile - Geometric](https://www.houzz.com/ideabooks/67737544/list/tile-geometric) — 17 ideas - [Powder Room](https://www.houzz.com/ideabooks/68074947/list/powder-room) — 6 ideas - [Ceiling- Coffered](https://www.houzz.com/ideabooks/67988098/list/ceiling-coffered) — 3 ideas - [Covered Patio](https://www.houzz.com/ideabooks/73401698/list/covered-patio) — 5 ideas - [Home Library](https://www.houzz.com/ideabooks/72170798/list/home-library) — 4 ideas - [Tile - Playful](https://www.houzz.com/ideabooks/68067367/list/tile-playful) — 4 ideas - [Dine](https://www.houzz.com/ideabooks/70677285/list/dine) — 5 ideas - [Stepped Cabinetry](https://www.houzz.com/ideabooks/67987893/list/stepped-cabinetry) — 1 idea [See all 68 ideabooks](https://www.houzz.com/ideabooks/users/leffdesignbuild) ## Community Q&A **Q: How big is this house? How many bedrooms/baths?** *(in Photo Questions)* A: 1 bedroom, 1.5 baths **Q: Design concept** *(in Photo Questions)* Is this a Custom Studio Shed? A: Hi Susan, Thank you for your inquiry. It is not a Studio Shed. This is a custom home we designed and built with the clients. But I can see the similarities. Rae and the LEFF Design Team **Q: island** *(in Photo Questions)* could you provide the island dimensions, please? Like the warm woods without being too dark. A: The wood species is lovely, isn't it? We loved working on this project. Here are the dimensions for the island: The island is 109” long x 39” deep with a maximum depth of 52” deep at center of raised arched countertop. The lower cabinets are a standard height of 36” a.f.f. with the upper raised counter top set at a height of 42” a.f.f. Thank you so much for your question. Rae Petenes and the LEFF design team **Q: Floors, stained concrete or crete with colorant throughout?** *(in Photo Questions)* A: Good Morning! We used a natural sealant with just a little bit of gray pigment on the concrete flooring throughout this amazing home. I hope this helps. Rae **Q: Contemporary Home** *(in Photo Questions)* What is the dark exterior made of? A: Hi Linda, We don't work down in your area so do not have any referrals there. You may try Googling that system or contacting the manufacturer and they most likely refer you to an installer in your area. Elaine **Q: Where is the Side Table from?** *(in Photo Questions)* A: I'd like to know about the side table, too!! It's exactly what I am looking for. --- *Source: Houzz professional profile. Reflects the profile as of 2026-08-07.*