Keystone DCS Inc.

Keystone DCS Inc. Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Keystone DCS Inc., Construction Company, 17272 Newhope Street, Ste K, Fountain Valley, CA.

Keystone DCS provides three core products and services: development of real estate, construction for residential, commercial, and remodeling, and real estate services including investment opportunities financing, and property management.

⚓️ Garnet | Balboa Island (EXTERIOR)We’re excited to present an updated look at our beautiful property on Balboa Island’...
06/11/2026

⚓️ Garnet | Balboa Island (EXTERIOR)

We’re excited to present an updated look at our beautiful property on Balboa Island’s very own Garnet Ave.

Sold in July 2025, this home encompasses 2,320 square feet, 3 bedrooms, 5 bathrooms, and a spacious floor plan throughout. Highlighted here are views of the stunning roof deck and outdoor patio areas, personalized bathroom designs, and a curated selection of finishes, materials, and colors.

We’re extremely proud of this home, as well as our other completed projects on Balboa Island as part of our Keystone Coastal collection.

Interested in building or renovating a home like this? Reach out today to discuss your project with our talented team!

📍 Balboa Island (Newport Beach)
📞 (714) 763-0302
🔗 keystonedcs.com

⚓️ Garnet | Balboa IslandWe’re excited to present an updated look at our beautiful property on Balboa Island’s very own ...
06/11/2026

⚓️ Garnet | Balboa Island

We’re excited to present an updated look at our beautiful property on Balboa Island’s very own Garnet Ave.

Sold in July 2025, this home encompasses 2,320 square feet, 3 bedrooms, 5 bathrooms, and a spacious floor plan throughout. Highlighted here are views of the stunning roof deck and outdoor patio areas, personalized bathroom designs, and a curated selection of finishes, materials, and colors.

We’re extremely proud of this home, as well as our other completed projects on Balboa Island as part of our Keystone Coastal collection.

Interested in building or renovating a home like this? Reach out today to discuss your project with our talented team!

📍 Balboa Island (Newport Beach)
📞 (714) 763-0302
🔗 keystonedcs.com

✨Apolena | Balboa IslandShowcasing our brand-new modern Cape Cod custom home built by Keystone Coastal in 2024! Situated...
04/29/2026

✨Apolena | Balboa Island

Showcasing our brand-new modern Cape Cod custom home built by Keystone Coastal in 2024! Situated in a highly desirable location on Apolena Ave on Balboa Island. This stunning home features 3 bedrooms, including a large JADU, 4.5 baths, a spacious front patio with firepit, a gourmet kitchen with island, Thermador appliances, a primary suite with private balcony, a spectacular roof deck including covered loggia, as well as an elevator for all 3 levels. Located just a few doors from the South Bayfront, this home provides incredible views of Newport Bay, Pavilion, and Fashion Island. This thoughtfully-designed custom home combines contemporary luxury with timeless coastal architecture, making for one of the most exceptional homes among Southern California’s highly desirable locations.

Stay tuned for more of our projects by / .coastal

📍 Balboa Island, Newport Beach
📞 (714) 763-0302
🔗 keystonedcs.com

✨Apolena | Balboa Island (EXTERIOR)Showcasing our brand-new modern Cape Cod custom home built by Keystone Coastal in 202...
04/29/2026

✨Apolena | Balboa Island (EXTERIOR)

Showcasing our brand-new modern Cape Cod custom home built by Keystone Coastal in 2024! Situated in a highly desirable location on Apolena Ave on Balboa Island. This stunning home features 3 bedrooms, including a large JADU, 4.5 baths, a spacious front patio with firepit, a gourmet kitchen with island, Thermador appliances, a primary suite with private balcony, a spectacular roof deck including covered loggia, as well as an elevator for all 3 levels. Located just a few doors from the South Bayfront, this home provides incredible views of Newport Bay, Pavilion, and Fashion Island. This thoughtfully-designed custom home combines contemporary luxury with timeless coastal architecture, making for one of the most exceptional homes among Southern California’s highly desirable locations.

Stay tuned for more of our projects by / .coastal

📍 Balboa Island, Newport Beach
📞 (714) 763-0302
🔗 keystonedcs.com

✨Apolena | Balboa Island (INTERIOR)Showcasing our brand-new modern Cape Cod custom home built by Keystone Coastal in 202...
04/29/2026

✨Apolena | Balboa Island (INTERIOR)

Showcasing our brand-new modern Cape Cod custom home built by Keystone Coastal in 2024! Situated in a highly desirable location on Apolena Ave on Balboa Island. This stunning home features 3 bedrooms, including a large JADU, 4.5 baths, a spacious front patio with firepit, a gourmet kitchen with island, Thermador appliances, a primary suite with private balcony, a spectacular roof deck including covered loggia, as well as an elevator for all 3 levels. Located just a few doors from the South Bayfront, this home provides incredible views of Newport Bay, Pavilion, and Fashion Island. This thoughtfully-designed custom home combines contemporary luxury with timeless coastal architecture, making for one of the most exceptional homes among Southern California’s highly desirable locations.

Stay tuned for more of our projects by / .coastal

📍 Balboa Island, Newport Beach
📞 (714) 763-0302
🔗 keystonedcs.com

03/25/2026

🏘️ Project Spotlight: Back in 2024, Keystone completed Lightbreeze, a distinctive collection of 15 custom single-family homes in Huntington Beach.

Each residence ranges from 4,700 to 6,600 square feet and features spacious custom design elements, premium appliances, and quality materials throughout thoughtfully planned floor plans that maximize both functionality and comfort. Pictured here are videos of the stunning homes located just 3 miles from the beach in an upscale, quiet neighborhood.

This is just one of our many tract homes featured throughout Orange County, built from the ground up while maintaining the custom quality and attention to detail that buyers expect. This intimate community represents the full scope of what Keystone Coastal and Keystone DCS delivers.

Currently accepting inquiries on current and future project plans!

Interested in discussing your residential development project?

Contact us today!🔨

03/06/2026

🚧 Under Construction Update: Barnstable, Huntington Harbour

Back with an update on our in-progress custom residence in Huntington Harbour, featuring 5 bedrooms, 5.5 bathrooms, and 4,104 square feet of thoughtfully designed living space.

This home is part of our Keystone Coastal Collection and showcases custom architectural elements with quality finishes throughout a well-proportioned floor plan.

The design balances family living with formal entertaining spaces, incorporating refined construction details suited for the harbour location.

Huntington Harbour remains one of Southern California’s premier waterfront communities, and this project represents the kind of custom coastal construction that we strive to deliver in meeting the expectations that buyers in premium Orange County locations know and love.

Stay tuned to follow along in our progress, and reach out to discuss how we can help realize your own custom build! ⚓

03/06/2026

Revisiting Keystone DCS’ completed project located in Stanton, this tract consisting of 11 homes, a 4-bedroom & 4-bathroom layout, and ranging from 1,630 to 2,334 square feet. This development was designed with first-time homebuyers and downsizing families in mind, featuring three distinct floor plans at the Stanton and Garden Grove border.

Each home included first-floor bedroom suites, contemporary upgraded kitchens with modern appliances, 10-foot ceilings, and maintained front yard landscaping within an intimate community setting.

Stay tuned for more projects built by Keystone DCS Inc.

02/27/2026

Looking back at one of our successful tract developments:

Keystone DCS built 12 single-family detached homes on St Anna Place in Fountain Valley, each featuring 4 bedrooms and 4-4.5 bathrooms. This boutique residential project showcases our quality construction that fits the character of established neighborhoods like this one here.

Located near highly rated schools, Mile Square Regional Park, and Bella Terra shopping, with convenient access to major employment centers and John Wayne Airport, St Anna Place was designed for the family-oriented buyers that Fountain Valley attracts.

St Anna Place is a good example of our residential tract work in Orange County. If you’re considering a similar development or have questions about our construction capabilities, reach out to Keystone DCS. 🔨

🚧 Under Construction (Garfield Ave, Huntington Beach)We’re building something exceptional on a rare 40,000+ square foot ...
02/18/2026

🚧 Under Construction (Garfield Ave, Huntington Beach)

We’re building something exceptional on a rare 40,000+ square foot lot in one of Huntington Beach’s most desirable neighborhoods as part of our Keystone Coastal division—a completely custom single-family home designed for luxury living at scale.

This residence will feature 9 bedrooms, 9.5 bathrooms, and amenities that rival a private resort: full golf simulator, dedicated movie theater, Olympic-sized pool, and sauna room.

Located minutes from Huntington Beach Pier, world-class surf breaks, Pacific City shopping and dining, and top-rated schools, this property combines premier coastal access with estate-level privacy. The expansive lot size is virtually unheard of in this area, allowing us to create an entertainer’s paradise with room to breathe.

We’re beyond excited about this project and how it showcases capability to execute high-end custom builds with complex features and premium finishes from foundation to completion.

Interested in discussing your own custom home project? Contact Keystone DCS today. ✉️

Address

17272 Newhope Street, Ste K
Fountain Valley, CA
92708

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+17147913772

Website

Alerts

Be the first to know and let us send you an email when Keystone DCS Inc. posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category