--- title: "GuyArchitect — Architects & Building Designers | Houzz" canonical_html_url: https://www.houzz.com/professionals/architects-and-building-designers/guyarchitect-pfvwus-pf~688476891 markdown_url: https://www.houzz.com/md/professionals/pf~688476891.md entity_type: LocalBusiness business_name: GuyArchitect category: ["Architects"] image: https://st.hzcdn.com/fimgs/36f36b1001eca405_7703-w400-h400-b0-p0--.jpg address: "1919 1/2 19th Street, SANTA MONICA, California 90404, United States" latitude: 34.0268 longitude: -118.4733 phone: "(310) 393-5148" website: http://www.guyarchitect.com rating: 5 review_count: 7 best_of_houzz_awards: 2 followers: 68 last_updated: 2026-08-21 --- # GuyArchitect Original Houzz profile: [GuyArchitect](https://www.houzz.com/professionals/architects-and-building-designers/guyarchitect-pfvwus-pf~688476891) ## Professional summary - **Primary category:** Architects - **Location:** SANTA MONICA, CA - **Serves:** Los Angeles, Venice, Inglewood, Burbank, Universal City, Santa Monica, Hawthorne, North Hollywood, Woodland Hills, Encino, Sherman Oaks, Culver City, Studio City, Tarzana, West Hollywood, Manhattan Beach, Beverly Hills, Calabasas, Pacific Palisades, El Segundo, Malibu, Marina del Rey, Topanga, Hidden Hills, Bel Air, Brentwood Los Angeles, Hollywood, Playa del Rey - **Houzz rating:** 5.0 out of 5 (7 reviews) - **Best of Houzz:** 2 awards (2017–2021), for Service. ## About ### Houzz Badges - Houzz Influencer - Recommended on Houzz - 1,000 Ideabook Saves I’m Guy Cosman Cass, Architect, AIA, and I’ve been designing custom homes, additions, and remodeling projects from my studio in Santa Monica, California since 2003, (and large projects since 1985). It’s my passion and I’m thrilled to share it with my clients and their families every day. The photos here and on my website (GuyArchitect.com) are the results of working closely with my clients and providing the home design of their dreams. Our designing process is exciting, and there’s a practical side to all of this, too. My services include thoroughly evaluating your home site, establishing a realistic construction budget, finding the best contractors, keeping an eye on the construction progress until the house is complete. I’m excited to hear your ideas, and share with you the joys of good home design. Shoot me an email at guy@guyarchitect or drop me a line and we’ll talk. ### Services Provided - Architectural Design - Building Design - Home Remodeling - Custom Homes - House Plans - New Home Construction - Home Additions - Home Extensions - Kitchen Design - Sustainable Design - Kitchen Remodeling - Energy-Efficient Homes - Floor Plans - Green Building - Bathroom Design - Historic Building Conservation - Basement Remodeling ### Areas Served - Los Angeles - Venice - Inglewood - Burbank - Universal City - Santa Monica - Hawthorne - North Hollywood - Woodland Hills - Encino - Sherman Oaks - Culver City - Studio City - Tarzana - West Hollywood - Manhattan Beach - Beverly Hills - Calabasas - Pacific Palisades - El Segundo - Malibu - Marina del Rey - Topanga - Hidden Hills - Bel Air - Brentwood Los Angeles - Hollywood - Playa del Rey ### Typical Job Cost $100,000 - 5 million The fees are project-based and vary with project scope, size, location, duration, complexity, and uniqueness. Our fees are set at the beginning of a project as either a fixed fee or an hourly fee with an estimated number of hours to complete. The total fee is then divided into the individual phases by percentage of the total fee (for fixed fees). ## Business Details | Field | Value | | --- | --- | | Business Name | GuyArchitect | | Address | 1919 1/2 19th Street, SANTA MONICA, California 90404, United States | | Phone | (310) 393-5148 | | Website | http://www.guyarchitect.com | | License Number | c15811 | | Followers on Houzz | 68 | **Social profiles:** - Facebook — https://www.facebook.com/guyarchitect/ - LinkedIn — https://www.linkedin.com/in/guycass - Blog — www.guyarchitect.com ## Contact - **Houzz profile:** [GuyArchitect](https://www.houzz.com/professionals/architects-and-building-designers/guyarchitect-pfvwus-pf~688476891) - **Website:** http://www.guyarchitect.com - **Phone:** (310) 393-5148 ## Credentials - **Best of Houzz:** 2 awards (2017–2021), for Service. **Affiliations** - [AIA Los Angeles](https://www.houzz.com/professionals/schools-and-organizations/aia-los-angeles-pfvwus-pf~1829789113) - [NCARB](https://www.houzz.com/professionals/schools-and-organizations/ncarb-pfvwus-pf~1477640315) ## Reviews **Overall rating: 5.0 out of 5 — 7 reviews** *Aspect averages:* - Work Quality: 50.0 - Communication: 50.0 - Value: 50.0 ### All 7 reviews **★★★★★ — Rebekah Chew, Sept. 2020** > Guy was fantastic to work with, from start to finish. He is detail orientated and thorough. He took the time to carefully consider my kitchen renovation ideas - and rather than deflect the ideas that I had as some architects might do, Guy walked me through the cost implications of certain decisions (e.g. putting in a new kitchen window) and then helped to make these ideas better based on his years of experience. My husband and I were in a rush as we were ready for our contractor to start work, and while Guy did everything he could to ensure the process was as fast as possible, I was really impressed by how thoughtful Guy was in approaching his work to ensure that the final plans would result in the best possible new kitchen. He was also very adaptable to the current COVID situation, and we worked together to ensure that he had all the photos, measurements and details needed to complete his work without a site visit while lockdown measures are in place. Would definitely recommend Guy, and would absolutely use his services again if we need an architect! **★★★★★ — Enid Turner, Dec. 2016** > We used Guy when we gutted the first floor of our house in Bell Canyon. This was our first time remodeling a house and found that he was easy to work with, resourceful and infinitely patient when we changed our minds time and again. We loved the designs he came up with then and a decade later, love them now just as much. If we ever move into another house that needs updating, I will use him again without a hesitation. **★★★★★ — nicktropea1, Dec. 2016** > Guy was great to work with! I had him come > Look at a job at my house that we started without a architect and he saved the day. He > Gave me a bunch of ideas and quickly > Got us our plans and we were able to get the plans were approved over the counter the first day, in the city of Santa Monica! I would recommend anyone I know in need of an architect. > Nick Tropea **★★★★★ — miller\_s1952, Jan. 2016** > I am a residential developer and have done many nice homes in nice areas for a many years. During this time I have had the opportunity to work with many accomplished Architects and designers. > In the process of designing my own home, I called upon several Architects and designers. The design evolved from one Architect to the next and in the end I was not fully satisfied with the plans. However, I was anxious to get my home built, so I began construction. In the middle of foundation work, I realized the plans were a mess and stopped the work. > Guy had just prepared plans for a spec house for me in the Pacific Palisades. I was particularly impressed with the layout of the floor plans and the drawings were well coordinated. He managed to fit everything I requested into a limited area and everything worked and flowed. I received many compliments and praises from my partners and investors. > I asked Guy if he could help me out. He responded quickly and began to clean up the plans. In the process, he made suggestions that would improve the design. We ended up redesigning the entire building and created the kind of home I had always envisioned and was striving for. I was impressed by his ideas and thoroughly enjoyed our design process together. > When my home was completed, it exceeded my expectations. I was so emotionally touched when I first moved in, that it took some time to accept that I was living in such a beautiful space and surroundings. I receive many compliments from everyone that visits. I am so pleased. Guy did a great job and I highly recommend him. > Sincerely, > Steve Miller > President **★★★★★ — mail3696, Jan. 2016** > I met Guy through an interior designer working on the remodel of my home. A couple years later, I contacted Guy to do another remodel on my home and add a guest bedroom suite, rear deck extension and infinity pool & spa over the hillside. > > > > Working directly with Guy turned out to be much better. His design was excellent and he made many improvements. His 3D modeling and renders were very helpful to visualize the design and it gave me a very good idea of how it would ultimately look when the construction was completed. > > > > Guy was also very instrumental in resolving some issues that arose with the contractor. His experience and professionalism was evident and I will commission Guy again in the future if I endeavor another project. **★★★★★ — Taddey-Karlin, LLC, Jan. 2016** > I purchased an outdated tract home with intention of remodeling it. I wanted to maximize the ocean view, open up and brighten the dark rooms, raise the ceiling and update the overall design and layout. > > Getting started, I was at a loss of how to deal with the dark kitchen, dining room and living room. Guy created an open concept floor plan for a large kitchen with an island under the existing skylight and a peninsula overlooking the dining area and ocean view. It was a much larger kitchen than I had in mind, but as a result, the kitchen is bright, open and airy, and the ocean view is fantastic. The kitchen is the center piece of my home and functions beautifully for entertaining as well as daily meal preparations. > > I also wanted to raise the ceilings dramatically. However, the Homeowners Association has guidelines limiting the height of the house to protect ocean views of other homes behind mine, and this created a problem. Guy came up with a roof design that maximized the new ceiling height within the exterior height limit without jeopardizing the long-term function of the roof drainage system. He provided many other architectural solutions as well for a comprehensive remodel design. > > The remodeling came out very nice and I am very pleased. > > I’m an interior designer and have built 6 homes for myself and at least 15 for clients. Guy was very instrumental in the design and solving issues that arose during the remodeling. So, when I speak about Guy Cass, I am coming from an informed and knowledgeable place. > Guy is the epitome of integrity and dependability. He does what he says he is going to do and in the time frame he promises. > Creatively, he is one of the best space planners I have met. He is great to work with as he is enthusiastic and obviously enjoys this work. His experience in this field is evident. You can count on him stay true to the nature of a design motif and avoid frivolous or irrelevant details. > > I enjoy him tremendously and look forward to working with Guy many times in the future. > > Sincerely, > > Shawn Taddey > Taddey-Karlin, LLC > Los Angeles, CA **★★★★★ — gt640, Jan. 2016** > I had always admired Guy's obvious architectural talent. Working with him for two years while building our family's dream home helped me realize he is also an artist. Many people confuse these qualities, but it is paramount to find an architect with these skills if you want a home that is connected to your soul. Rarely do I take direction from others when it comes to design, but I was always confident in Guy's visions. > > It is impossible to stand in front of our home and not receive emphatic complements about its presence. Having lived in North Santa Monica for three years now in this home, I would say the public's enthusiasm for the property seems to be cross-cultural, as well as gender and age diverse. Strangers are not shy to share their feelings about the home and I must admit that I enjoy the feedback. > > I could not recommend an architect with more enthusiasm and faith than I can for Guy Cass. We will most certainly see more great designs from him I the future, so I would get on board now before the rest of the world discovers him. ## Selected projects - [Santa Monica Remodel-Addition](https://www.houzz.com/hznb/projects/santa-monica-remodel-addition-pj-vj~1210460) - Location: Santa Monica, CA - Photos: 8 - Description: Project: A major remodel and addition to a small traditional style home built in 1924. Client Requirements: Expand the kitchen and dining room; add a master suite, laundry room, powder room, third bathroom, detached guest unit, third-car garage, and renovate everything in a contemporary design. Challenge: A complete renovation within a limited budget of an older non-conforming house with restrictive zoning step-back building envelope and low height limit, if exceeded, would require the entire bu… - [Hollywood Hills Remodel](https://www.houzz.com/hznb/projects/hollywood-hills-remodel-pj-vj~1949179) - Location: Los Angeles, CA - Photos: 15 - Description: Project: A major remodel and addition to a 1959 tract home on a city view property located in the coveted bird streets of the Hollywood Hills, Client Requirements: Maximize views, remodel and enlarge all spaces, add a guest bedroom suite, increase outdoor space, add infinity pool and spa for indoor/outdoor entertaining, transform tract style home to a luxurious Hacienda style with a contemporary flair. Challenge: Acquire more space for the 985 sq. ft. guest bedroom suite addition and larger rear… - [Pacific Palisades Residence](https://www.houzz.com/hznb/projects/pacific-palisades-residence-pj-vj~513587) - Location: Pacific Palisades, CA - Photos: 16 - Description: Project: A new two-story home on a vacant hillside ocean view property. Client Requirements: A Spanish style home with ocean views from all significant rooms and as much on-site parking as possible for guests; no street parking allowed. Challenge: A complete redesign and style change to fit within the pre-approved Coastal Commission maximum building envelope with a dogleg footprint on a sloping site and a height limit that follows the sloping land. (property was acquired with a Coastal Commissio… - [Malibu Remodel](https://www.houzz.com/hznb/projects/malibu-remodel-pj-vj~282300) - Location: Malibu, CA - Photos: 15 - Description: Project: A comprehensive remodel and small addition to a 1960’s tract house on an ocean view property in Sunset Mesa, Malibu. Client Requirements: Maximize panoramic ocean views with high ceilings, bright, open and large spaces for entertaining, and update in a contemporary style. Challenge: Raise roofs for higher ceilings within height restriction imposed by the Homeowner Association guidelines to protect neighbor’s views. Design Solution: A gabled flat roof with minimum slope and gutters runni… - [Brentwood Residence](https://www.houzz.com/hznb/projects/brentwood-residence-pj-vj~282267) - Location: Los Angeles, CA - Photos: 12 - Description: Project: A new two-story Spanish style residence on a half-size corner lot in Brentwood. Client Requirements: Large and open plan kitchen, family room, and nook; 10' high ceilings, large master suite with several rooms for gym, library, two walk-in closets, large 12' tall garage for three car lifts and space for restoring vintage sports cars. Challenge: A complete redesign of plans of a previous designer on a fast-track process to minimize the significant delay caused by stopping construction du… [See all 5 projects](https://www.houzz.com/professionals/architects-and-building-designers/guyarchitect-pfvwus-pf~688476891) ## Ideabooks - [Wish List](https://www.houzz.com/ideabooks/62407409/list/wish-list) — 7 ideas [See all 1 ideabook](https://www.houzz.com/ideabooks/users/guyarch) ## Community Q&A **Q: Love the tub.** *(in Photo Questions)* Could you tell me the name of this tub please? A: I'm sorry for my late reply. I'm also sorry I don't know the name of the tub. It was ordered by my clients partner several years ago. **Q: Painting?** *(in Photo Questions)* Who is the artist? Thx A: Sorry, I don't know. It belongs to the owner. **Q: Hi- love this room - is the dining room table custom or from a store?** *(in Photo Questions)* Dining room table A: Hello, Thank you for your compliment and question. I wouldn't want to disturb the owner to ask where he bought his dinning table. Since it is made from two thick solid hardwood planks with bowtie butterfly keys to control the live edge cracks, it is a custom made table. Some stores sell custom made furniture. If you Google "live edge table", you might find many. I see Etsy.com sells them. To get the rectangular shape like this table, the "live edge" would be cut off. I hope this helps you find the table you are seeking. **Q: Could you please tell me the color used on the beams? Thank you.** *(in Photo Questions)* A: I'm sorry, the interior designer selected the color some time ago, so I don't have knowledge of the color. **Q: Where can I find towel warmer?** *(in Photo Questions)* Towel warmer info please A: To be honest, I'm not very familar with the details of towel warmers. It might be helpful to go to a local showroom at a Fergeson's or similar and talk with a salesperson. **Q: Love the light fixtures on the posts and by the front door! Source?** *(in Photo Questions)* A: Hello Nancy, My client bought them at Lantern Masters in Calabasas, CA --- *Source: Houzz professional profile. Reflects the profile as of 2026-08-21.*