Grand Oaks Homes for Sale in Saint Augustine, FL

Grand Oaks sits in a competitive, top-rated St. Johns County new-construction market, and it is positioned as a relatively accessible way into the district. The confirmed active pricing is in Summer Bay at Grand Oaks, where homes start around $343,990 and most models run from the high-$300,000s into the mid-$400,000s. The average Summer Bay home price has run in the low-to-mid $380,000s. All-ages pricing in the broader community varies by builder, plan, and phase, so confirm current numbers directly.

Several factors shape the real cost. Lot premiums for conservation, lake, and park-view homesites add to the base. Design-center upgrades move the number quickly. Builder incentives are active in the current rate environment, with rate buydowns and closing-cost contributions on select homes, so comparing homes and asking about incentives pays off. And buyers should confirm the full fee structure, the HOA dues and whether a CDD assessment applies, since a community of this scale and amenity depth may carry one.

In a new community like Grand Oaks, builder pricing, incentives, lot selection, and your representation matter more than resale comps, which is where an agent who knows the community pays off. We track the current sold-to-list and days-on-market picture for the corridor and bring it to the table so your offer reflects the real market, not a builder's list sheet.

Grand Oaks is a phased master plan, so the buying decision starts with which neighborhood and life stage fits, and with confirming the current active builders and inventory.

The confirmed active new-construction anchor is Summer Bay at Grand Oaks, a gated 55-plus active-adult neighborhood by Pulte, now open and selling. It offers single-family homes on 40-, 50-, and 65-foot homesites designed around conservation, lake, and park views, with open-concept floor plans and designer options. As of 2026, pricing runs from roughly $343,990, with popular models in the high-$300,000s to mid-$400,000s (for example, plans around 1,580 to 1,860 square feet). Summer Bay has its own gated entry and exclusive amenities, including a resort-style pool, pickleball and bocce courts, an outdoor firepit and fireplace, and a community garden, on top of access to the broader community.

The broader Grand Oaks community also offers all-ages single-family new homes. Because it is a phased master plan in an active St. Augustine new-construction market, the specific builders and neighborhoods open at any given time change as phases release. Rather than rely on a fixed list, confirm the current active all-ages builders, available plans, and inventory at Grand Oaks before you visit, which is exactly the kind of up-to-date legwork your agent should do for you.

Like most new communities, Grand Oaks carries both quick-move-in homes (already under construction or complete, faster to close, less customization) and to-be-built homes (choose the plan, lot, and finishes, more personalization but a longer timeline, typically several months). Builder incentives in 2026 have included rate buydowns and closing-cost help on select quick-move-in homes, so it pays to ask which incentives apply to which homes.

Amenities are a centerpiece of Grand Oaks, with a deep package planned and built across the community plus dedicated amenities for the 55-plus neighborhood.

The Grand Oaks amenity plan is extensive: a clubhouse and amenity center with a pool and pool house, a splash park, playgrounds, a party pavilion, sports courts, tennis and pickleball courts, a dog park, walking paths, and recreational features such as a rose garden, croquet lawn, lawn bowling area, and a sports field for soccer and football. Roughly 30 percent of the community is kept as preserve, recreation, and open space, woven through with natural areas, ponds, and existing trees.

Summer Bay at Grand Oaks has its own gated, exclusive amenities for the active-adult lifestyle, including a resort-style pool, pickleball and bocce ball courts, an outdoor firepit and fireplace, and a community garden, designed to keep residents social and active. Summer Bay residents get this dedicated package on top of the broader Grand Oaks community amenities.

The planned town-center component, on-site restaurants, shops, boutiques, and office space, is what sets Grand Oaks apart over the long term. As the commercial element fills in, residents will be able to walk or take a short drive to dining, shopping, and services without leaving the community, a live-work-play convenience that is still relatively rare in the area. For buyers willing to grow with the community, that future walkability is a meaningful draw.

Grand Oaks is close to solid shopping and dining today and is planned to add its own on-site town center over time. The World Golf Village area nearby offers restaurants, shops, golf, and entertainment, and the St. Augustine Premium Outlets (about 10 to 15 minutes away) provide major outlet shopping, with grocery stores and everyday services along the corridor.

Historic downtown St. Augustine, about 20 to 25 minutes south, adds its renowned dining, boutiques, and historic charm, and the St. Johns Town Center is reachable to the north. The long-term differentiator is Grand Oaks' planned on-site restaurants, shops, and boutiques, which, as they fill in, will give residents walkable dining and retail within the community. For a community in the growing World Golf Village area, the current access plus the future town center make for a strong shopping and dining outlook.

A few things that consistently come up once buyers get serious about a phased, mixed-use community like Grand Oaks.

The mixed-use town center, on-site restaurants, shops, and offices, is part of the long-term value, but it arrives in phases. Ask where the commercial component and remaining amenities stand and what the timeline is, so your expectations match reality on the day you move in.

Summer Bay at Grand Oaks by Pulte is the clearest active new-construction opportunity here, gated, amenity-rich, and now selling from the mid-$300,000s. If you are 55 or over and want a low-maintenance home in a top school county near St. Augustine, it belongs on your list, and the broader Grand Oaks amenities come with it.

A community this size and amenity-rich may carry a CDD on top of HOA dues. Confirm whether a CDD applies to the specific home and lot, the HOA dues, and the post-first-year tax reset, so the true monthly is clear before you commit.

Because Grand Oaks releases in phases, the all-ages builders and neighborhoods open at any moment change. Do not assume a fixed roster, confirm who is building, what plans are available, and which incentives apply right now. An agent who tracks the community will have the current picture.

St. Johns County flooding concentrates near the Intracoastal, the coast, and the creeks and marshes, while many inland master-planned communities sit in lower-risk zones.

The reliable move is to pull the FEMA flood designation for the exact Grand Oaks address before you write an offer, since two homes in the same area can fall in different zones. A home in Zone X can cost far less to insure than one near water in Zone AE. Get a bindable flood and homeowners quote during your inspection period, so the cost is in your monthly math before you commit, not after.

St. Johns County is well served by AT&T (fiber in most newer communities) and Xfinity (Comcast), though fiber availability still varies by street. If working from home matters, confirm the options, and fiber in particular, at the specific Grand Oaks address rather than assuming.

St. Johns County total millage varies by district, and CDD assessments are common in the master-planned communities, which adds to the all-in cost on top of the millage. The Florida homestead exemption for 2026 is 51,411 dollars for those who qualify, and the deadline to file a new homestead exemption is March 1.

The trap to plan for is the post-sale reset: when you buy, the Save Our Homes cap from the previous owner ends and the assessed value resets to the new just value, so your second-year tax bill is often higher than the seller current one. Budget the true number, and confirm whether the specific home carries a CDD or other assessment that is billed separately from the millage and is not reduced by the homestead exemption.

Most buyers weighing Grand Oaks are comparing it with the other St. Augustine and St. Johns master plans. Here is the honest shorthand. Against TrailMark in the same World Golf Village area, both share top St. Johns schools, but TrailMark leans into outdoor recreation, with miles of trails and a Six Mile Creek kayak launch, while Grand Oaks leans into a mixed-use town-center plan and a strong, actively selling Pulte 55-plus anchor in Summer Bay; the right fit comes down to whether you want trails or a town center, and all-ages or 55-plus. Against the larger SilverLeaf master plan nearby, Grand Oaks trades sheer scale and a longer amenity build-out for a more contained plan and its town-center concept. And against established World Golf Village neighborhoods, Grand Oaks offers newer construction and incentives in exchange for living through the phased build-out. The honest summary: Grand Oaks wins on its mixed-use town-center vision and its 55-plus Summer Bay option, and asks buyers to be comfortable that the commercial component and some amenities arrive over time.

Grand Oaks fits the buyer who wants newer construction in the top-rated St. Johns district near St. Augustine, the active adult drawn to Summer Bay's gated, low-maintenance, amenity-rich enclave by Pulte, and the buyer who values a mixed-use town-center vision and is comfortable growing with a phased community. It also fits the buyer who wants builder incentives and the leverage of representation at the builder's table. It does not fit the buyer who needs a finished town center and full amenities on move-in day, the buyer who wants resale price history rather than a new-construction read, or the buyer who must be minutes from the beach, since the Atlantic is a 30-plus-minute drive. And anyone buying here should confirm whether a CDD applies and budget the new-build tax reset before they commit.