Sentinel Lake
Homes for Sale in Marietta, GA
All 337 homes for sale in Marietta, GA · median $480,000 · 58 homes for sale in 30068
True comps, carrying-cost math, and listings before the portals.
Photo courtesy of Ashley Riley · via Georgia MLS
Over the 12 months ending 2026-09-20, 3 recorded sales closed at a median of $995,000, $194 per square foot, a median 13 days on market, sellers accepting 101% of original asking (+3% versus the prior year). Homes listed or recently sold were built 1989–1990. At the median price and Cobb County's 2025 rate of 27.16 mills, annual property tax runs about $10,810.
| Location | Marietta, Cobb County, GA · ZIP 30068 |
|---|---|
| Amenities listed by sellers | Clubhouse, Pool, Tennis Court(s), Lake, Playground, Swim Team |
| Sale prices, last 12 months | $995,000 median across 3 closed sales · $194 per sq ft · +2.6% vs the prior 12 months |
| Days on market (closed sales) | 13 median |
| For sale right now | 0 active, 0 pending |
Data as of September 20, 2026. Listing data © 2026 Georgia MLS (GAMLS). Information is deemed reliable but is not guaranteed. Market figures describe homes, not residents. Cite as: Momentum Realty, “Sentinel Lake key facts,” movewithmomentum.com/neighborhoods/sentinel-lake, data as of September 20, 2026.
Last 30 days in Sentinel Lake: 1 closed sale (median $995,000). As of September 20, 2026, Listing data © 2026 Georgia MLS (GAMLS). Information is deemed reliable but is not guaranteed.
Sentinel Lake's numbers this snapshot come from a thin trading window — three closings — so treat the $995,000 median as a directional read rather than a settled market line. What it does tell you: this is a higher price-point pocket of Marietta, and the per-square-foot figure of $194.07 suggests the value here is coming from larger floor plans rather than a premium finish-per-foot story.
A 13-day median days-on-market is the more reliable signal in a small sample — homes that come to market priced correctly are not sitting. For sellers, that argues for pricing tight to recent comparables rather than testing the ceiling. For buyers, it means moving with a clear offer strategy in hand rather than treating this as a browse-and-decide situation.
Sentinel Lake right now
🟡 Still climbing. The trailing-12-month median ($995K) is up 2.6% from the prior 12 months ($970K). With about 4 sales a year, a single closing can swing this number, so read the level and the decade, not one year's move.Momentum Research, record-level Georgia MLS closed sales, 12-month windows ending September 20. Confidence: Low (3 and 5 sales in the two windows).
What's unique here: the median sale price is about 2x the typical Cobb County sale ($995K vs $430K, trailing 12 months, Georgia MLS records).
Jump to: Price history & scorecard · Homes for sale · Schools · FAQ
· Updated September 21, 2026 · Live data: Georgia MLS, refreshed twice daily · MLS facts carry their source; interpretation lines are Momentum Research · Data sources & freshness
Nearby homes for sale
No active listings inside Sentinel LakeHomes for Sale in Marietta, GA right now. These are the 6 closest homes on the market, by straight-line distance from the community's center; some may sit just outside its boundary.
Listing data from the MLS feeds named on each listing page; deemed reliable but not guaranteed. Refreshed nightly.
The 60-Second Overview
Sentinel Lake market snapshot (as of September 20, 2026): the median sale price is about $995K ($194 per sq ft over the trailing 12 months of closed sales), and a median 13 days on market for closed sales. The trailing-12-month median is up 3% from the prior 12 months, computed from record-level Georgia MLS closed sales (3 closings in the current window).
In ZIP 30068 (Marietta), 218 homes closed in the last 12 months at a median of $668K ($235/sq ft), down 3.9% year over year, with a median 24 days on market. Right now 18 active and 10 pending listings put supply at about 3.6 months — a balanced market. See the live ZIP 30068 housing market.
Georgia MLS sales records identify 14 homes in Sentinel Lake that have changed hands since 2023, built between 1970 and 2021 (median 1990), with a median living area of about 5,284 sq ft and a typical 5-bedroom, 5-bath layout; 100% are single-family homes. Source: Georgia MLS closed-sale history compiled by Momentum Research; counts reflect homes with a recorded MLS sale, not every home in the community. Georgia has no statewide parcel roll comparable to Florida’s DOR file, so ownership and homestead shares are not shown.
Sentinel Lake sits in Cobb County within Marietta, trading at a median of $995,000 on a small but fast-moving set of recent closings — homes here have been going under contract in under two weeks.
The setting & the homes.
Aerial and on-site photos of Sentinel Lake. Swipe to explore the community.
Swipe or use the arrows → tap any photo to enlarge
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Sentinel LakePhotos from Georgia MLS listings in Sentinel Lake; content deemed reliable but not guaranteed.
Who Sentinel Lake is best for.
Best for
- Targeting a near-$1M price point in Cobb County and prioritizing overall square footage.
- Ready to move quickly once a well-priced listing appears, given the sub-two-week days-on-market pace.
- Comfortable making a decision from a thin comparable set and verifying amenities independently.
Probably not for
- Needing a documented list of community amenities before making an offer.
- Wanting a wide selection of active comparables to study before deciding on price.
- Working with a firm ceiling well under the current median price point.
Sentinel Lake on the map.
Every active, pending, and recently sold home, plotted. Toggle the layers and tap a home for the details.
Listing locations from Georgia MLS. Map data © OpenStreetMap, tiles © CARTO.
The Sentinel Lake buying strategy.
If we were buying in Sentinel Lake today, this is the order of operations we would run for our clients.
Underwrite the condition first. Price the roof, HVAC, and systems honestly before judging any list price; condition swings value here more than square footage alone.
Match the home to real comps. Recent sales of similar condition and lot, not the asking price, tell you what a home is worth.
Move deliberately, not desperately. Neither side has a decisive edge, so a well-prepared, fairly-priced offer wins without overpaying.
Line up financing and inspection early. A pre-approval and an inspection plan let you act fast and negotiate from evidence.
Keep an agent in your corner. The listing agent works for the seller; we represent you and prepare a hand-built valuation before any offer in Sentinel Lake.
Reading a Thin but Fast Market
With only three closings in the current window, Sentinel Lake does not yet have the volume to support a confident price range or a trend line. What the data does support is the pace: a 13-day median days-on-market at a near-$1M price point is quick, and it tells you that whatever is listing correctly is not lingering.
The per-square-foot figure — $194.07 — is worth sitting with. At this price point, that number points to homes with substantial square footage rather than a premium-finish story driving the median up. No community amenities are currently identified from MLS listings, so any pool, gate, or clubhouse claims should be verified directly rather than assumed from the name or area.
The location and the amenities are priced into every listing in Sentinel Lake. The deal is won or lost on condition, the comps, and the renovation math.
Why work with Momentum here
A market with only a handful of recent closings is exactly where a generic online estimate falls apart — there is not enough volume for an algorithm to price it well. We work directly from the current listing set and closed data, size up what is actually driving the median before you commit to a number, and move fast on paperwork when a property this level of demand requires a same-day offer.
Sentinel Lake in 15 seconds.
HOA, CDD & Fees
- HOA status not on record. Verify any dues before you offer
- Any club/amenity membership is billed separately
Confirm the current HOA dues, exactly what they cover, and any CDD bond or special assessment for a specific address before you offer.
Tools for a Sentinel Lake buy.
Free calculators to pressure-test the real cost before you tour.
Selling here is won on condition and pricing to real comps, not an automated estimate. The right number comes from closed Sentinel Lake sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in Sentinel Lake, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your Sentinel Lake home worth?
Get a no-obligation home value based on real comparable sales in Sentinel Lake, not an automated guess. Tell us about your home and we will personally prepare your numbers and a pricing strategy. No obligation, no spam.
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Frequently Asked Questions
What is the median home price in Sentinel Lake?
How long do homes in Sentinel Lake take to sell?
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Where is Sentinel Lake, and what county is it in?
Should you buy in Sentinel Lake?
An honest fit check. We will tell you when it is not your community.
Data sources & freshness
| Live listings | Georgia MLS, refreshed twice daily (last: September 21, 2026) |
| Community market stats | Georgia MLS closed sales, 12-month windows ending September 20, 2026 |
| Under-contract shares | Georgia MLS records, as of 2026-09-20 |
| Historical depth | Closed-sale records back to 2023 (14 transactions analyzed) |
Verify the primary sources yourself: Georgia DOR · U.S. Census · FEMA flood maps.
Momentum Research figures are our own analysis of Georgia MLS records; MLS data is deemed reliable but not guaranteed. Methodology: how Momentum market scores are computed. Market metrics describe homes for sale and recent sales, not residents.
Own a home here?
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The numbers on this page move markets in the aggregate. The number that matters to you is what a buyer pays for your address. Momentum will price yours against live local comps — a real number, not an algorithm’s guess.
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See how Sentinel Lake fits the bigger picture — live prices, inventory, and Momentum Scores:
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