Williams Island is an 84-acre guard-gated resort community in Aventura at 7000 Island Blvd, and our directory profiles 320 residences across 25 floors, completed in 2008. Our research carries it near $540 per square foot with dues around $1.30 per square foot a month, as of August 14, 2026 — the lowest per-foot estimate of any Aventura address we profile.
What the 84 acres actually contain
Most Miami building guides describe a tower. Williams Island is not one, and reading it as a single address is the first mistake a buyer makes here.
Our profile at /buildings/williams-island describes a guard-gated island resort community of multiple condominium towers wrapped around a marina, a spa, a tennis center and restaurants. The 320 residences and 25 floors in our figures describe the addressed building we profile; the community around it is the product, and it is why the amenity list runs to a resort programme rather than a tower's standard set.
That list, as our profile records it: a resort-style pool deck, a fitness center, a full-service spa, 24-hour concierge, valet parking, a residents' lounge, a children's play room, a business and conference center, on-site dining and a dog park. Residences run from studios to multi-bedroom penthouses across a one-to-five-bedroom range, and our directory's listed range is roughly $550,000 to $8 million.
The community carries the nickname "the Florida Riviera," and the buyer our research describes is a family or second-home owner who wants full-service Intracoastal living rather than a beach address.
The price estimate, and why it is the lowest in Aventura
Our directory research puts Williams Island near $540 per square foot. That is the figure to reconcile against, because it sits below every Aventura comparison we carry.
Our estimate for /buildings/prive-island-aventura, the twin-tower community on an eight-acre private island a few minutes away, is about $900 per square foot across just 160 residences, completed in 2017. That is roughly 67 percent above our Williams Island figure. Our neighborhood research at /neighborhoods/aventura carries the city-wide estimate at $560 per square foot on a $640,000 median condo price, which puts Williams Island a few percent under its own neighborhood.
Three things explain the spread, and none is quality. Scale: 320 residences absorb a resort amenity programme across far more owners than 160 do. Vintage: our figures date the building to 2008 against Privé's 2017, and our HQ Rank scores age at 7.5 here against 9.2 there. Unit size: a community running from studios to five-bedroom penthouses has its per-foot figure pulled down by smaller inventory in a way a three-to-five-bedroom community does not.
Every one of those figures is our directory's research estimate, not a closed comparable sale. Miami does not yet have a live MLS feed on this site, and the residences shown on our building pages are clearly labeled sample listings while that feed is finalized — they are illustrative, not current inventory.
What the dues estimate means each month
Our research carries dues at about $1.30 per square foot per month. Applied to real unit sizes, that is roughly $1,950 a month on a 1,500-square-foot two bedroom and roughly $3,250 on a 2,500-square-foot residence. That is arithmetic on our estimate rather than a figure quoted by the association, and any specific unit's actual assessment should be confirmed before you rely on it.
For a resort community this is a moderate estimate, not a low one, and the comparison that matters is what it buys. Our figure for Privé is about $1.40 per square foot per month for a far smaller amenity set spread across 160 owners; our figure for /buildings/oceana-bal-harbour is $2.00 across 240 residences on 5.5 oceanfront acres. A guard-gated community with a marina, a tennis center, a spa and staffed dining is being run at an estimate close to buildings offering less, which is what 320 residences of scale does to a per-foot number.
Dues are only half the monthly picture in a Florida condo; the more useful half is what the budget funds versus what it defers, and how to read that document is at /blog/reading-a-miami-condo-budget-where-dues-go.
The 2008 vintage, and the diligence it triggers
A 2008 building sits squarely inside the era Florida's post-Surfside rules were written to catch up with, and that makes the paperwork rather than the finishes the real subject of a visit.
Our HQ Rank gives Williams Island 9.0 on building health and 7.5 on age, an 8.3 on location, 8.8 on views and 9.2 on waterfront, for an overall 8.50. The health score is our research view; it is not a substitute for the milestone inspection report and the structural integrity reserve study, which are the documents that actually govern an older coastal building's assessment risk. What those require and when they are triggered is set out at /blog/miami-condo-milestone-inspection-sirs.
Two other threads matter as much here. The split between the association's master policy and the HO-6 an owner carries is at /blog/miami-condo-insurance-master-policy-vs-ho6, and it is where coastal premium increases land. And glazing on a 2008 building is worth asking about by name, because the high-velocity hurricane zone rules govern it: /blog/miami-condo-hurricane-impact-windows-hvhz. Our profile records floor-to-ceiling impact glass, which is the answer you want, but confirm it for the specific line and floor.
Who the community fits, and who it does not
The fit is a buyer who wants the gate, the marina, the tennis and the concierge as daily infrastructure rather than as a brochure, and does not need to walk to the sand. Aventura Mall and the Turnberry courses are the neighborhood's other anchors, and our guide to the city is at /blog/aventura-condo-guide.
The misfit is the beachfront buyer. Williams Island is Intracoastal, not oceanfront; our waterfront score of 9.2 reflects a marina and water on the community's edges, not 400 feet of sand. Buyers whose brief starts with the beach are comparing against Sunny Isles and Bal Harbour instead, at /blog/sunny-isles-beach-condo-guide and /blog/bal-harbour-condo-guide, and should expect our estimates there to run well above $540 per square foot.
The other misfit wants new construction. Our figures put this at 2008: a mature building with a real maintenance and assessment history — an advantage if you read the documents, a liability if you do not.
Questions buyers ask about Williams Island
How many units does Williams Island have and when was it built?
Our directory records 320 residences across 25 floors, completed in 2008, at 7000 Island Blvd in Aventura, developed by Williams Island Associates. The wider community our profile describes covers 84 guard-gated acres with multiple condominium towers, a marina, a spa and a tennis center.
How much are HOA dues at Williams Island?
Our directory research estimates about $1.30 per square foot per month as of August 14, 2026, which is roughly $1,950 on a 1,500-square-foot residence. That is our estimate rather than a figure quoted by the association, so confirm the actual assessment for any specific unit before relying on it.
Is Williams Island oceanfront?
No. It is a guard-gated Intracoastal island community with a marina, not a beachfront address. Our research scores it 9.2 on waterfront for that setting, while the oceanfront comparison set sits east in Sunny Isles Beach and Bal Harbour, where our per-foot estimates run substantially higher.
How does Williams Island compare with Privé at Island Estates on price?
Our estimates place Williams Island near $540 per square foot against about $900 at Privé — roughly 67 percent apart. The gap tracks scale and vintage: 320 residences from 2008 against 160 from 2017 on an eight-acre private island, with our age scores at 7.5 and 9.2 respectively.
What should a buyer check first in a 2008 Aventura building?
The milestone inspection status and the structural integrity reserve study, then the association's budget and reserve funding, then the insurance layers and the impact glazing. A building with this much history has paperwork that answers questions no listing photograph will.
Verifying any of this before you offer
Every price, dues and score figure above is our own research, labeled as an estimate for that reason, with an as-of date of August 14, 2026. Our citywide report at /market-stats carries a $685,000 median Miami condo sale price as a periodic estimate; Miami's live MLS feed is still pending, so nothing here is a comparable sale or an appraisal.
We are a research directory, not a brokerage. We do not list on the MLS, negotiate offers or close transactions. When you want current availability, the association's budget, or the inspection and reserve paperwork for a specific residence at Williams Island, we introduce you to a licensed partner agent who can request all three.
Written by
Miami Condo HQ
Miami Condo Specialists
Miami Condo HQ is a Miami condo platform — in-depth profiles for the condo buildings we track across Miami, for-sale and for-rent listings, building profiles and Miami market research, and honest, pressure-free guidance for buyers, sellers and investors across South Florida.
