Active
$2,850,000
Est. $17,470/mo

640 Lyons Ln, Longboat Key, FL, 34228

$941/sqft·Sleepy Lagoon Park 2

4 bd5 ba3,030 sqft5 car garageSingle Family
Listed by SEA BREEZE REAL ESTATE LLC· Last updated · MLS# A4674925

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Est. monthly payment
$17,470/mo
Down payment (20%)
$570,000
Property taxes
$1,181/mo
Rate assumed
6.8% · 30 yr
View full breakdown

At a glance

Single family
3 stories · 2026
Waterfront
Canal - Saltwater
Private pool
Heated
5 car garage
9,919 sqft lot
Lot size

New construction · 2026

Different rules apply when you buy new

Build snapshot

Build year
2026
Builder
Ask the team — not on MLS
Community
SLEEPY LAGOON PARK 2
Type
Single Family Residence

True monthly carry

HOA
None / TBD
CDD bond
No CDD disclosed
Builder incentives
Ask — change weekly

What we'll do for you on a new build

Builder contract redlines

Builder contracts favor the builder. We mark up the clauses you should push back on before you sign.

11-month inspection

Your 1-year warranty expires quietly. We book an independent inspection at month 11 — saves $5K+ on average in caught defects.

Verified incentives

We verify the current builder incentives every time we walk a community. Rate buy-downs, design-center credits, closing costs — all itemized.

About this home

Ceiling Fans(s)BalconyOutdoor KitchenRain GuttersBuilt-in OvenCooktopDishwasherDisposal

640 Lyons Ln is a 2026-built home in Sleepy Lagoon Park 2, Longboat Key. Inside you'll find 4 bedrooms, 5 bathrooms, and 3,030 square feet of living space. Listed at $2,850,000 (about $941/sqft), 216 days on market. Flood zone AE - confirm flood insurance requirements with your lender.

From the listing

Virtually Staged. Under Construction. Under Construction. Pre-Construction | Custom Build | Water to Front & Rear A once-in-a-generation opportunity on one of Longboat Key's most extraordinary streets. Lyons Lane is a truly singular address — a quiet, private enclave in North Longboat Key where homes enjoy an exceptionally rare double-water setting, with sparkling canal frontage to the rear and serene, protected wetland and mangrove views to the front. This is island living at its most private and unspoiled. Design Your Dream Home The vision is still yours to shape. The buyer has the rare opportunity to work directly with the architect to customize the layout, finishes, and features of this brand-new custom home before it's complete. From floor plan adjustments to material selections, this is your chance to create a residence that is uniquely and entirely your own without the years of planning that a true ground-up build typically demands. The property sits on a prime lot with water on both sides; the property includes an existing pool ready to be incorporated into your design, along with a private boat dock and lift with direct access to Millar and Sarasota Bays and no fixed bridges to the Gulf of Mexico. For the boating enthusiast, it simply does not get better than this deep water access, protected dockage, and open water within minutes. Lyons Lane — Longboat's Best-Kept Secret Unlike any other street on the island, Lyons Lane offers homes on one side only, with lush native mangroves lining the opposite side — ensuring that your views, privacy, and natural surroundings will never be compromised. It is one of the few locations on Longboat Key where you can wake up to undisturbed natural beauty in every direction while remaining just moments from the finest dining, boutique shopping, and white-sand Gulf beaches the island has to offer. Longboat Key — Florida's Premier Barrier Island. Stretching 11 miles along Florida's Gulf Coast with over 25 miles of combined waterfront between the Gulf of Mexico and Sarasota Bay, Longboat Key is consistently ranked among the most desirable addresses in the country. The island attracts discerning buyers who demand privacy, natural beauty, and world-class amenities — including the legendary Longboat Key Club, with 45 holes of championship golf, a full-service deep-water marina, spa, and beach club. Opportunities like this — a custom home, double waterfront, dock and lift, and the freedom to personalize are extraordinarily rare on Longboat Key. Don't miss your chance to build exactly the island life you've always envisioned

The essentials

Built
2026
Price / sqft
$941
On market
264 days
Annual tax
$14,172
Flood zone
AE
Lot
9,919 sqft
Type
Single Family Residence

Location

640 Lyons Ln
Longboat Key, FL, 34228·34228 - Longboat Key
Type
Single Family Residence
Year Built
2026
Lot
9,919 sqft
Cooling
Central Air
Heating
Electric, Natural Gas
Parking
-
Pool
Gunite, Heated, In Ground, Salt Water, Screen Enclosure
Waterfront
Canal - Saltwater
Days on Market
264
Ceiling Fans(s)
Balcony
Outdoor Kitchen
Rain Gutters
Built-in Oven
Cooktop
Dishwasher
Disposal
Microwave
Range Hood
Refrigerator
Flood Zone AE

Annual Tax (2024)

$14,172

Parcel #

7863600008

Taxes reflect the most recent assessment in the MLS feed. Actual tax owed can vary, so confirm with the county property appraiser before closing.

Subdivision

Sleepy Lagoon Park 2

County

Manatee

MLS Area

34228 - Longboat Key

Lot Size

9,919 sqft

Street Dead-End
Date
Event
Price
8/27/2026
Price change
Source: Stellar MLS #A4674925
$2,850,000+14.2%
$941/sqft
Price change
Source: Stellar MLS #A4674925
$2,495,000-12.3%
$823/sqft
12/21/2025
Listed for sale
Source: Stellar MLS #A4674925
$2,845,000
$939/sqft
Est. monthly payment$17,470/mo
Principal & interest$14,864
Property taxes$1,181
Insurance$1,425
Down payment20% · $570,000
Interest rate6.80%
Loan term

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Property taxes are this home's actual annual bill from the MLS, divided by twelve. Insurance estimated at 0.60%. Rate defaults to 6.8% on a 30-year fixed. Tap a pencil to use your own numbers. Estimates only, not a loan quote.

Offer Insights

Choose an offer strength

List price: $2,850,000
$2.67M – $2.85M
93.8% – 100% of listTops out right at the list price
80% of listList price
22 of the last 43 home closings in 34228 landed at this number or higher (51%). The median one sat 95 days before it went under contract, and this one is on day 264.

Sample: 43 closed home sales in 34228 over the last 8 months, Stellar MLS. A starting point, not a guarantee.

Talk through an offer with our team

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