Custom Home Builder in Richmond Hill
Build your custom home in Richmond Hill with Jash Design & Build, a licensed design-build custom home builder registered with Tarion and backed by WSIB coverage, $5 million liability insurance, and BBB A+ accreditation. Since 2009, we have managed custom homes, renovations, additions, commercial projects, and full ground-up builds with one clear standard: do it right the first time
Jash Design & Build Company
Founded in 2009 by Ash Moeini, Jash Design & Build has grown from small renovations into a full-service design-build firm serving residential and commercial clients. Our foundation comes from Ash’s lifelong experience in construction, from learning on job sites in Iran to working on residential, commercial, restoration, and government projects in New York. Over the years, we expanded into restaurant renovations, building 22 Wild Wing locations, followed by law offices, dental and medical spaces, additions, custom homes, and full ground-up builds. Today, we bring that history into every project with strong management, experienced trades, and a do-it-right mindset.

What Our Trusted
Clients Saying
Highly rated by homeowners and property owners across the GTA.



Our Design-Build Services Richmond Hill
Jash Design & Build is a design-build custom home builder in Richmond Hill. From new builds and teardown builds to renovations and additions, we work with only the most trusted contractors and oversee the job from start to finish. Our design-build services in Richmond Hill include the following.

Custom Homes Richmond Hill
We help you design and construct your new-build custom home in Richmond Hill, beginning with an initial site assessment and conversation. From there, we produce a budget. Once you’re happy to proceed, we apply for all relevant permits and build your turnkey custom home.

Semi-Custom Homes Richmond Hill
If you’re looking to expedite the construction time, we build semi-custom homes in Richmond Hill. Using pre-built or modular framing options, we can reduce the costs compared to a custom home while still offering some design flexibility.

Full Home Renovations Richmond Hill
We manage your full home renovation in Richmond Hill. Our team reviews your layout, prepares drawings, helps you choose materials, protects the work area, supervises construction, and keeps you updated. Before handover, we complete a quality review and final walkthrough.

Home Additions Richmond Hill
Build a high-quality Richmond Hill home addition with Jash Design & Build. From the site assessment through supervised construction, progress updates, and a final walkthrough, we ensure your new space is well-built and thoughtfully integrated with your existing home.

Commercial Renovations Richmond Hill
Jash Design & Build specializes in commercial renovations in Richmond Hill. We plan, design and build empty shells for offices, restaurants, dental offices, medical offices, and other professional spaces.
Based on the project scope of work, our team prepares drawings and layouts and coordinates the permits. Throughout the renovation, we coordinate trades, supervise the site, manage communication, and ensure everything moves ahead on schedule. At completion, we carry out quality checks and a final walkthrough.
After construction, we also offer 24/7 commercial property maintenance in Richmond Hill. This includes scheduled repairs, refresh interiors, complete tenant turnover renovations, and help keep offices, restaurants, medical spaces, hotels, gyms, and low-rise buildings ready for daily use.
Why Choose Jash Design & Build
We differentiate ourselves through strong trade relationships, quality workmanship, and a hands-on approach to every project. By focusing on proper planning, clear communication, and client education, we help homeowners and businesses make confident decisions throughout the construction process.

Browse Our Recent Projects
Take a look at some of our recent renovation and construction projects completed across the GTA. From custom homes and additions to full interior remodels, every project is built with attention to detail, quality craftsmanship, and lasting results.
MARYVALE CUSTOM ESTATE
THE ARNOLD ESTATE
ORCHARD GROVE
How Much Does It Cost to Build a Custom Home in Richmond Hill?
The cost of a custom home in Richmond Hill typically comes to between $400 and $500 per square foot. This depends on your lot conditions, home size, design complexity, material choices, finish level, permit requirements, site access, and whether you need demolition, excavation, landscaping, or other additional work.
Serving Richmond Hill & the GTA
We serve the residents and businesses of Richmond Hill and the GTA. Our service area extends beyond the inner city into the surrounding communities. Here is a list of the areas we serve:
- Toronto
- North York
- Vaughan
- Richmond Hill
- Etobicoke
- Mississauga
- Oakville
- Aurora
We also work with clients throughout surrounding GTA communities. If you’re unsure whether we service your area, feel free to reach out.
Schedule Your Feasibility Study
Schedule your feasibility study to explore what’s possible for your Richmond Hill custom home, what fits your budget, and what steps come next. Contact our team today.