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Your Trusted Residential Architecture Firm in Rancho Cucamonga
Cummins Architecture is a boutique architecture firm dedicated to delivering custom design and engineering solutions for residential remodels, additions, and auxiliary dwelling units. Founded with a commitment to excellence, our team brings over 35 years of combined industry experience to every project. Located in Rancho Cucamonga, CA, we specialize in creating functional, sustainable, and aesthetically compelling spaces tailored to each client's unique vision. Our portfolio includes over 100 successfully completed projects across Southern California, spanning Los Angeles, San Bernardino, and northern San Diego Counties.

We prioritize client collaboration, ensuring every design reflects individual needs while maintaining structural integrity and environmental responsibility. Our fee structure is transparent and tied to project complexity, with a focus on quality outcomes that exceed expectations. We offer no-cost initial consultations to help clients explore their ideas and develop actionable plans. Through a combination of innovative design, technical expertise, and regional knowledge, we transform architectural concepts into enduring realities.
Services
Residential Architecture Commercial Architecture Sustainable Design Interior Design Urban Design
Highlights and features
  • We offer 35+ years of specialized residential architecture experience
  • Our client-centric process prioritizes individual design preferences
  • We serve all major Southern California counties with local expertise
  • We provide comprehensive project support from concept to completion
  • Our transparent fee structure aligns with project scope and complexity
Services
Residential Architecture
Specializing in custom residential architecture, we create personalized living spaces that reflect homeowners' lifestyles. Our services include remodels, additions, and auxiliary dwelling units across Southern California. With over 100 completed projects, our team combines functionality with aesthetic appeal while maintaining strict adherence to building codes and sustainability standards. This service addresses diverse residential needs from single-family homes to multi-unit developments.
Sustainable Design
We integrate energy-efficient solutions that reduce environmental impact while enhancing building performance. Our sustainable design approach incorporates passive solar principles, eco-friendly materials, and LEED-compliant practices. This service helps clients achieve energy savings without compromising design integrity or construction quality, ensuring modern homes meet contemporary environmental standards while maintaining long-term value.
Interior Design
Our interior design service creates thoughtfully curated spaces that balance aesthetics with everyday functionality. We develop customized layouts for kitchens, bathrooms, living areas, and commercial interiors that maximize usability while reflecting personal style. The service includes material selection, lighting design, and spatial organization to create environments that support occupants' lifestyles and work patterns.
Commercial Architecture
We design commercial spaces that optimize functionality while creating inviting environments for businesses. This service addresses specific operational requirements for retail locations, office buildings, and corporate headquarters. Our approach combines brand representation with practical space planning to create commercial properties that enhance productivity, meet zoning requirements, and deliver long-term investment value through quality design execution.
Urban Design
Our urban design service focuses on creating cohesive, sustainable communities through strategic planning. We develop comprehensive plans for mixed-use developments, residential complexes, and public spaces that enhance livability while addressing infrastructure needs. This service integrates architectural vision with environmental considerations to shape functional, aesthetically pleasing urban environments that meet current and future community requirements.
Questions
What architectural services do you specialize in?
We specialize in residential architecture including remodels and additions, commercial building design, sustainable architecture, interior design, and urban planning projects across Southern California.
How are your architectural fees structured?
Our fees are typically 10-15% of the construction budget, adjusted based on project complexity and scope. This percentage-based structure aligns our compensation with your project's scale and requirements.
What areas do you serve?
We provide architectural services throughout Southern California, including Los Angeles, San Bernardino, and northern San Diego Counties.
What experience does your team have?
Our team collectively has over 35 years of architecture experience and has successfully completed more than 100 projects across residential and commercial sectors.
Do you offer consultation services?
Yes, we provide no-cost initial consultations through phone, in-office, or on-site meetings to discuss your project requirements and develop tailored design solutions.
Reviews (7)
Steve W.
May 17, 2021 Report
I have waited a long time to complete this review. Please stay away from this firm. I have been working with them for 14 months it started out good but has ended horrible. I had to fight with Dale to get the package submitted before year end and when his son finally did it was sent to the wrong department Building and safety. The city charged me a fee that should have came at a later date. After the new year 2021 my project was sent out for corrections, at the same time Dale said we needed to submit to the planning department which should have been the first department. He also said that the out
Barbara G.
Sep 25, 2020 Report
B E W A R E - The unprofessionalism, lack of knowledge for Claremont codes, many many errors on his part, does not double check work even after having mistakes pointed out by the city, etc.. My husband and I went to his home for a consultation and he seemed nice enough, presented all he would do, so we decided to hire him and paid the deposit. We paid him as we went and he's been paid in full. This has been a slow process at which one point he went missing in action, he moved his residence and did not notify us nor the city as to where to contact him. After repeated calls (which his phone
Zabdiel B.
Jan 29, 2020 Report
I was remodeling an apartment complex in the City of Ontario and decided to use Cummins Architecture. He was available next day for a walk through and had a bid ready next day! Plans were kept at the original timeline despite all the changes I kept making. I appreciate their patience! He even went with me to submit my permits to the city and checked in until the city gave me final approval. Not only would I use this company again but I am using them in another remodel! Can't say enough good things they helped me with many aspects of renovations I wasn't familiar with.
Chad Hammons
Aug 13, 2017 Report
Alec, Jon & Dale made my project easy. They were always available for questions or concerns that arose during construction.
Asha Jayasinghe
May 27, 2017 Report
These guys are the best! Very detailed from start to finish. Dale and Doug were a pleasure to work with, I would highly recommend them for any construction or architectural needs.
Layne D.
Aug 15, 2016 Report
Dale's professionalism and expertise were second to none! The quality of his service rendered, his attention to detail and the service of his staff are highly recommended to anyone looking for architectural needs and services!
Joe S.
Jun 03, 2016 Report
First let me clarify its $250 for Cummins to come to your house and "check out" what your planning on building. The free consultation is when you go to their office. I paid the $250. So after dealing with Dale Cummins, the owner, I can say he is an over priced full of himself architect. All I wanted was a detached garage built in my backyard. Nothing fancy but a high ceiling. When it costs $10,000 for just plans that's when I have a problem. Remember it's basically a box with a roof on it, no kitchen, no bathroom and no windows. When I declined his services, his response was