Quick Answer
Legacy at Lucas Valley is a community of 28 new single-family homes built by Haven Development in the Marinwood area of San Rafael, in Marin County (94903). Four floor plans run from about 3,081 to 3,769 square feet. Each plan includes a private ADU and solar the homeowner owns. Pricing is in the $3.5M+ range. I am the Broker Ambassador for the community. Call or text me at 415-350-9440 for current pricing and availability.
Key Takeaways
- New single-family homes are rare in Marin County. Legacy at Lucas Valley is 28 homes, and 28 is all the County approved for this site.
- The ADU and the owned solar come with each plan. On a resale home, those are two separate projects.
- The location pairs quick Highway 101 access with open hills right behind the homes.
- Pricing is in the $3.5M+ range. Call me for current pricing and availability.
- I am the Broker Ambassador, not the listing agent. If you want me to represent you, we go together on your first visit.
Legacy at Lucas Valley at a Glance
Fact | Detail |
|---|---|
Community | Legacy at Lucas Valley |
Builder | Haven Development |
Location | Erin Drive and Erin Court, Marinwood, San Rafael, CA 94903 |
Homes | 28 single-family homes |
Floor plans | Four: The Lucas, The Muir I and II, The Reyes, The Tamalpais |
Size | About 3,081 to 3,769 square feet |
Bedrooms | 4 to 5 |
Included with each plan | Private ADU, owned solar, garage pre-wired for EV charging |
Price | In the $3.5M+ range |
Model home | 7 Erin Drive, open Wednesday through Sunday, 10 am to 5 pm |
Broker Ambassador | Kyle Frazier, Imagine Marin, Compass, 415-350-9440 |
Home, plan and model details are per Haven Development, October 2026.
What Is Legacy at Lucas Valley?
Legacy at Lucas Valley is a new-home community of 28 single-family residences in Marinwood, an unincorporated part of San Rafael in the 94903 ZIP code. The builder is Haven Development, a Bay Area homebuilder based in San Ramon. The homes sit on two streets, Erin Drive and Erin Court.
You almost never see a new single-family neighborhood in Marin, and this site shows why. The land is part of the Oakview Master Plan, which the Marin County Board of Supervisors approved in 2005 for a 106-acre property. The plan allowed 28 residences. Nearly two decades passed before the homes were built.
The homes are contemporary: clean rooflines, big windows, stucco and stone exteriors, and decks and terraces that face the hills. I have walked the model, the finished homes and the ones still in framing. From the second-floor terraces, you look straight out at the ridgeline.
For the wider picture of what is being built around the county, see my guide to new homes in Marin County.
What Is a Broker Ambassador, and Why Am I Involved?
A Broker Ambassador introduces a new-home community to buyers and other agents, and represents the buyers who decide to purchase there. That is my role at Legacy at Lucas Valley.
I am not the listing agent. Haven Development's on-site team handles sales, led by Sales Director Michael Brizzolara, and the community is exclusively represented by Compass Development Marketing Group. I am a Compass broker associate as well, so I will walk you through the required agency disclosures before we tour. Pricing, availability and specifications come from Haven and can change.
New construction is familiar ground for me. I have sold Marin real estate for more than 20 years, and I led sales for two earlier new-home communities: The Landing at Hamilton, a 29-home development at Hamilton Field in Novato, and Rudnick Estates. Today I am also the Sales and Marketing Director for Magnolia Village, 20 new townhomes coming to Larkspur.
Builder contracts read differently from the standard resale contract. I have worked with them from the seller's side and the buyer's side.
What Comes Standard in a Legacy at Lucas Valley Home?
Each Legacy at Lucas Valley plan comes with a private ADU, owned solar and a garage pre-wired for EV charging. Haven's feature sheet names the brands, which I appreciate. Here is what buyers ask me about most. Features are per Haven Development, can change, and some vary by plan.
Category | What is included |
|---|---|
ADU | Private accessory dwelling unit with its own entrance. Layout varies by plan. |
Solar | Solar panels installed and fully owned by the homeowner. No lease. |
EV charging | Garage pre-wired with a 220V electric vehicle charging circuit. You add the charger. |
Windows and doors | Complete Andersen window and patio door package |
Construction | 2x6 exterior walls for added insulation. Stucco with concrete-based siding and stone veneer, per plan. |
Kitchen | Thermador appliance package (refrigerator optional), quartz countertops with a 1½-inch mitered edge, shaker cabinets with soft-close, Kohler sink and faucet |
Primary bath | Freestanding Kohler tub, frameless glass shower, Daltile large-format tile, quartz vanities |
Technology | Keyless entry, wired Nest doorbell, CAT6 and RG6 wiring to all bedrooms and the great room, wifi garage door opener with battery backup |
Efficiency | LED lighting throughout and an 80-gallon electric water heater |
Why does the ADU matter?
The ADU is the first thing buyers ask me about. It has its own entrance. Use it as guest quarters, a home office or a separate space for extended family. It is permitted and built with the house, so there is no second construction project after closing.
Why does owned solar matter?
Many solar systems are leased or financed through a power-purchase agreement. A third party owns the panels, and the buyer inherits the contract. At Legacy, the homeowner owns the system.
Battery storage is an upgrade. One of the homes I toured has a Tesla Powerwall installed.
What can buyers personalize?
That depends on timing. The earlier in construction you buy, the more you can choose. Haven's Design Studio offers options for cabinets, countertops, hardwood flooring and appliance packages. Select homes also include an elevator.
What Floor Plans Does Legacy at Lucas Valley Offer?
Legacy at Lucas Valley offers four floor plans, from about 3,081 to 3,769 square feet, with 4 to 5 bedrooms. Every plan has a two-car garage.
Plan | Approx. sq ft | Stories | Bedrooms | Baths |
|---|---|---|---|---|
The Lucas | 3,081 | 2 | 4 | 4 |
The Muir I and II | 3,198 to 3,721 | 2 | 4 to 5, plus loft | 4.5 |
The Reyes | 3,688 to 3,692 | 3 | 5, plus flex room | 4, optional half bath |
The Tamalpais | 3,769 | 2 | 4, plus loft and office | 4.5 |
Source: Haven Development, October 2026. Square footage is approximate.
The Reyes is the only three-story plan. The Tamalpais is the largest and adds a dedicated office. Which plans are offered on which homesites changes as homes sell, so ask me for the current picture.
Why Does New Construction Matter in Marin County?
A new home at this price gives you a finished house instead of a renovation budget. Much of the resale housing near Legacy at Lucas Valley, in Marinwood, Lucas Valley and Terra Linda, was built from the 1950s through the 1970s. Those neighborhoods have real appeal. But a 60-year-old house often needs a roof, windows, wiring or plumbing, plus the kitchen and baths the buyer plans to redo. That work starts after closing, and the buyer pays for it.
Here is what changes with a new home:
- Everything is new on day one. The roof, the systems, the windows and the appliances all start their life with you.
- It is built to current code. That includes California's current energy standards, which is where the solar, the insulation and the efficient lighting come from.
- The big upgrades are already done. Owned solar, EV wiring and a permitted ADU are each a separate project on most resale homes.
- It comes with a builder warranty. Ask for the terms in writing. I review them with my buyers.
- The layout fits how people live now. Open great rooms, a primary suite with a walk-in closet, office space and indoor-outdoor living are designed in. They are not added on later.
The demand is there. In the third quarter of 2026, San Rafael's open-market single-family sales rose 36.6% from a year earlier, to 127. The median price rose 15.4% to $1,650,000, per BAREIS MLS. Sales at Legacy at Lucas Valley picked up sharply over the same stretch. My Q3 2026 Marin market report has the full breakdown.
There are trade-offs, and you should hear them from me. Landscaping takes a few years to fill in. If you buy a home that is still under construction, your move-in date depends on the builder's schedule. Legacy also has a homeowners association. I will get you the current dues and what they cover.
One more point for longtime California homeowners. If you are 55 or older and selling your primary residence, Prop 19 may let you move your property tax base to a new home. My Prop 19 guide and calculator explains how it works. It is not tax or legal advice, so confirm your numbers with a CPA.
Where Is Legacy at Lucas Valley, and What Is Nearby?
Legacy at Lucas Valley sits at the east end of the Lucas Valley corridor in Marinwood, about a mile from Highway 101. From 101, take the Lucas Valley Road exit and head west. Turn right on Las Gallinas Avenue, then right on Erin Drive. The model home is at 7 Erin Drive.
You get two things here that rarely come together in Marin: quick freeway access and open hills behind your house.
- Open space. Oak-studded hillsides rise directly behind the community. Lucas Valley Road continues west past the Big Rock trailhead and Lucas Valley Open Space Preserve toward Nicasio and West Marin.
- Marinwood. The Marinwood Community Center, with its pool and park, is close by on Miller Creek Road.
- Terra Linda and Northgate. Shopping, services and Kaiser Permanente's San Rafael Medical Center are a short drive south.
- Marin Civic Center. The Frank Lloyd Wright-designed Civic Center, its farmers market and the SMART train station are a few minutes down 101.
- Downtown San Rafael. Restaurants, the Rafael Film Center and the Transit Center are a few exits south.
- Schools. The community is within the Miller Creek School District. Confirm school assignments directly with the district.
Views depend on the homesite. Many look out to the surrounding ridgelines. Walk the specific lot before you choose.
For more on the area, see my San Rafael guide and Lucas Valley Living in San Rafael.
How Much Do Homes at Legacy at Lucas Valley Cost?
Homes at Legacy at Lucas Valley are priced in the $3.5M+ range. The price of a specific home depends on the plan, the homesite and the finishes.
Builder pricing and availability move as homes sell and new homes are released. So I am not publishing a price list or current listings here. Call or text me at 415-350-9440 and I will send you what is current.
If you are weighing Legacy against a resale home, I will pull BAREIS MLS data on recent closed sales in Lucas Valley, Marinwood and Terra Linda. Make that comparison with real numbers.
How Do You Tour Legacy at Lucas Valley?
Call me before your first visit. Haven's cooperating-broker terms require a buyer's agent to accompany the buyer on the first visit and register them. If you want me to represent you, we go together the first time. I want to be there with you anyway. I can point out things on site that a brochure will not.
- Reach out. Call or text 415-350-9440, or email [email protected]. Tell me your timing and what you need in a home.
- Tour with me. We walk the model home at 7 Erin Drive and the homesites. The model is open Wednesday through Sunday, 10 am to 5 pm, per Haven.
- Get current numbers. I confirm pricing, availability and any incentives with Haven's sales team, and I bring the resale comparison.
- Decide with representation. If Legacy is the right fit, I represent you through the contract, the design selections, the walkthroughs and the closing.
I am also publishing a video introduction to Legacy at Lucas Valley on my YouTube channel.
Tell me your timeline and what you need in a home, and I will send you current pricing and availability for Legacy at Lucas Valley.
Kyle Frazier | 415-350-9440 | [email protected]
Legacy at Lucas Valley: Frequently Asked Questions
Where is Legacy at Lucas Valley located?
Legacy at Lucas Valley is on Erin Drive and Erin Court in the Marinwood area of unincorporated San Rafael, in Marin County, ZIP code 94903. It is about a mile west of Highway 101 at the Lucas Valley Road exit. The model home and sales office are at 7 Erin Drive.
Who is building Legacy at Lucas Valley?
The builder of Legacy at Lucas Valley is Haven Development, a Bay Area homebuilder based in San Ramon (CSLB License #1057489). Haven's on-site sales team is led by Sales Director Michael Brizzolara. The community is exclusively represented by Compass Development Marketing Group.
How many homes are at Legacy at Lucas Valley?
Legacy at Lucas Valley has 28 single-family homes in total, on Erin Drive and Erin Court. The number comes from the Oakview Master Plan, which the Marin County Board of Supervisors approved in 2005. That plan allows 28 residences on this site.
What floor plans does Legacy at Lucas Valley offer?
Legacy at Lucas Valley offers four floor plans: The Lucas, The Muir I and II, The Reyes and The Tamalpais. They range from about 3,081 to 3,769 square feet with 4 to 5 bedrooms, per Haven Development. Every plan has a two-car garage. The Reyes is the only three-story plan.
Do homes at Legacy at Lucas Valley include an ADU?
Yes. Each of the four floor plans at Legacy at Lucas Valley includes a private accessory dwelling unit with its own entrance. The ADU is permitted and built with the house. Layouts vary by plan, so ask me which ADU configuration comes with the home you are considering.
Is the solar at Legacy at Lucas Valley owned or leased?
The solar at Legacy at Lucas Valley is owned. Per Haven's feature sheet, the solar panels are installed and fully owned by the homeowner. There is no solar lease or power-purchase agreement for the buyer to take over. Battery storage is available as an upgrade.
Are the garages at Legacy at Lucas Valley ready for EV charging?
Yes. Per Haven's feature sheet, each garage at Legacy at Lucas Valley is pre-wired with a 220-volt electric vehicle charging circuit. The circuit is in place when you move in. You choose and add the charging unit that fits your car.
How much do homes at Legacy at Lucas Valley cost?
Homes at Legacy at Lucas Valley are priced in the $3.5M+ range. The price of a specific home depends on the plan, the homesite and the finishes. Builder pricing changes, so I do not publish a price list. Call or text me at 415-350-9440 for current pricing.
Are homes currently available at Legacy at Lucas Valley?
Availability at Legacy at Lucas Valley changes as homes sell and as Haven releases new homes, so I do not publish current listings or a count. Call or text me at 415-350-9440, or email [email protected], and I will confirm what is available now.
Is there an HOA at Legacy at Lucas Valley?
Yes. Legacy at Lucas Valley has a homeowners association. Dues and what they cover can change, so I do not publish a figure. Contact me and I will get you the current dues, the budget and the governing documents before you write an offer.
Can I use my own agent to buy at Legacy at Lucas Valley?
Yes. Haven Development cooperates with buyer's agents at Legacy at Lucas Valley. Its terms require your agent to accompany you on your first visit to the community and register you. If you want me to represent you, call me before you visit and we will go together.
What does a Broker Ambassador do?
A Broker Ambassador introduces a new-home community to buyers and other agents, and represents the buyers who decide to purchase there. I am the Broker Ambassador for Legacy at Lucas Valley. I am not the listing agent. Haven Development's sales team handles sales, pricing and availability.
When is the Legacy at Lucas Valley model home open?
The Legacy at Lucas Valley model home at 7 Erin Drive in San Rafael is open Wednesday through Sunday, 10 am to 5 pm, per Haven Development. Hours can change. Call or text me at 415-350-9440 to schedule a private tour.
Can buyers choose their own finishes at Legacy at Lucas Valley?
Often, yes. Depending on the stage of construction, buyers at Legacy at Lucas Valley can personalize finishes through Haven's Design Studio. Options include cabinets, countertops, hardwood flooring and appliance packages. The earlier in construction you buy, the more you can choose.
Related Reading
- New Homes in Marin County: The Complete 2026–2027 Guide
- Marin Housing Market Q3 2026: The $340,000 Gap and the Day-14 Line
- San Rafael neighborhood guide
- Lucas Valley Living in San Rafael
- Prop 19 in Marin County: guide and tax calculator
- Kyle Frazier on YouTube
Kyle Frazier is a Broker Associate with Compass (DRE #01405738) and serves as Broker Ambassador for Legacy at Lucas Valley. He is not the listing agent. Legacy at Lucas Valley is built by Haven Development (CSLB Lic. #1057489) and is exclusively represented by Compass Development Marketing Group. Pricing, plans, features and availability are provided by Haven Development, are subject to change without notice and should be verified before you rely on them. Square footage is approximate. This article is not an offer to sell. Equal Housing Opportunity.
