Thornbrook
Homes for Sale in Marietta, GA
All 337 homes for sale in Marietta, GA · median $480,000 · 150 homes for sale in 30066
True comps, carrying-cost math, and listings before the portals.
Photo courtesy of Renita Brown · via Georgia MLS
As of September 2026, Thornbrook in Marietta, GA has 2 homes for sale. Over the 12 months ending 2026-09-20, 3 recorded sales closed at a median of $492,500, $181 per square foot, a median 9 days on market (+8% versus the prior year). Homes listed or recently sold were built 1995–2020. At the median price and Cobb County's 2025 rate of 27.16 mills, annual property tax runs about $5,350.
| Location | Marietta, Cobb County, GA · ZIP 30066 |
|---|---|
| Home types (current listings and sales) | single-family 100% |
| Amenities listed by sellers | Pool, None, Tennis Court(s), Park, Playground, Boat/Camper/Van Prkg |
| Sale prices, last 12 months | $492,500 median across 3 closed sales · $181 per sq ft · +8.0% vs the prior 12 months |
| Days on market (closed sales) | 9 median |
| For sale right now | 2 active, 1 pending · median asking $417,500 · 3.4 months of supply |
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, “Thornbrook key facts,” movewithmomentum.com/neighborhoods/thornbrook, data as of September 20, 2026.
Last 30 days in Thornbrook: 2 new listings (median asking $417,500), 1 under contract right now. As of September 21, 2026, Listing data © 2026 Georgia MLS (GAMLS). Information is deemed reliable but is not guaranteed.
Thornbrook's most recent read comes from a thin slice of activity — just three closings feed this snapshot, so treat the numbers as directional rather than a fully seasoned trend line. Within that window, the median sale landed at $492,500, working out to $181.06 per square foot, which tells you pricing here is doing real work per foot rather than trading on scale alone.
The standout figure is the 9-day median days on market. That kind of turnaround signals homes are being priced to move and buyers are acting quickly once something suitable hits the list. For a seller, that argues for pricing at or near recent comps rather than testing the market high. For a buyer, it means having financing and a decision ready before you tour, because a well-priced listing here is not likely to sit.
Thornbrook right now
🟡 Balanced market. 3.4 months of supply and 33% of the inventory already under contract put buyers and sellers on roughly even footing.Why it matters: months of supply is how long today's inventory would last at today's sales pace; under-contract share is the portion of homes for sale that already have a buyer.Momentum Research analysis of Georgia MLS records, as of September 20, 2026. Confidence: Medium (3 active and pending listings, 3 closed sales in 12 months).
🟢 Still climbing. The trailing-12-month median ($492K) is up 8.0% from the prior 12 months ($456K). 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 7 sales in the two windows).
Jump to: Price history & scorecard · Homes for sale · Schools · FAQ
· Updated September 22, 2026 · Live data: Georgia MLS, refreshed twice daily · MLS facts carry their source; interpretation lines are Momentum Research · Data sources & freshness
The 60-Second Overview
Thornbrook market snapshot (as of September 20, 2026): the median sale price is about $492K ($181 per sq ft over the trailing 12 months of closed sales), a median 9 days on market for closed sales, and 3.4 months of supply, a balanced market. The trailing-12-month median is up 8% from the prior 12 months, computed from record-level Georgia MLS closed sales (3 closings in the current window).
In ZIP 30066 (Marietta), 444 homes closed in the last 12 months at a median of $408K ($193/sq ft), up 0.5% year over year, with a median 25 days on market. Right now 104 active and 28 pending listings put supply at about 4.6 months — a balanced market. See the live ZIP 30066 housing market.
Georgia MLS sales records identify 14 homes in Thornbrook that have changed hands since 2023, built between 1995 and 1998 (median 1997), with a median living area of about 2,415 sq ft and a typical 4-bedroom, 2.5-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.
Thornbrook is a Marietta community in Cobb County where recent activity has been light but decisive, with homes selling close to list and quickly once they come to market.
The setting & the homes.
Aerial and on-site photos of Thornbrook. Swipe to explore the community.
Swipe or use the arrows → tap any photo to enlarge
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ThornbrookPhotos from Georgia MLS listings in Thornbrook; content deemed reliable but not guaranteed.
Who Thornbrook is best for.
Best for
- Moving quickly once a home is under contract, with financing pre-arranged.
- Prioritizing per-square-foot value in a Cobb County location over clubhouse-style amenities.
- Comfortable making a pricing decision from a small but consistent set of recent comps.
Probably not for
- Needing a wide selection of active listings to compare before deciding.
- Requiring confirmed shared amenities like a pool or clubhouse as part of the purchase.
- Preferring a slower, more deliberate offer timeline without competitive pressure.
Homes For Sale Right Now in Thornbrook
Live MLS inventory for Thornbrook. Every active listing, what is under contract right now, and the last 12 months of closed sales, refreshed twice a day. Closed comps beat an algorithm's guess every time.
Active and pending Thornbrook listings as of 2026-09-21, priced high to low. Listing data © 2026 Georgia MLS (GAMLS). Information is deemed reliable but is not guaranteed. 
Tap any home to ask about it.
Every Home for Sale in Thornbrook Right Now (3)
All 3 active and pending Thornbrook listings with a detail page, newest first, refreshed twice a day from the MLS.
- 1049 Swaying Pines Trace · $450,000 · 3 bd / 2.5 ba · listed Sep 17, 2026 · listed by Bolst, Inc.
- 655 Thorn Brook Ridge · $325,000 · 3 bd / 2 ba · pending · listed Sep 10, 2026 · listed by eXp Realty
- 652 Thorn Brook Ridge · $385,000 · 4 bd / 3 ba · listed Sep 7, 2026 · listed by Keller Williams Chattahoochee
Thornbrook 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.
Schools
- Cobb County School System
- Verify the zoned schools by address
- Magnet and choice options may be available
- Austin Road · Elementary
- Haymon Morris · Middle
- Apalachee · High
District figures are official Georgia (GOSA) 2024-25 data. Zoned schools reflect the assignments reported on recent Thornbrook listings and can change; always confirm with the Cobb County School System for a specific address.
Buying with schools in mind? We can confirm the exact zoned schools for any Thornbrook address.
Shop the zone: Homes zoned for Apalachee High School
The Thornbrook buying strategy.
If we were buying in Thornbrook 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 Thornbrook.
A Small Sample, A Clear Signal
With only three closings in the current window, Thornbrook is not a high-volume market to lean on for broad conclusions, but the data that exists is consistent: a median price of $492,500 and a per-square-foot figure of $181.06 suggest homes here are being valued on condition and finish rather than moving in a wide, unpredictable price band. That kind of tight clustering is often what you see in a community with a fairly uniform housing stock.
No community amenities are identified in current MLS listings for Thornbrook, so buyers should not assume clubhouse, pool, or shared recreational infrastructure — verify directly with listing agents or HOA documentation before making that a factor in your decision. What is confirmed is speed: a 9-day median days on market is fast by most standards, and it puts the burden on buyers to move decisively and on sellers to price with the comps, not against them.
The location and the amenities are priced into every listing in Thornbrook. 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 and a 9-day sale cycle rewards preparation, not hesitation. We track what limited comps exist in Thornbrook in real time, help you build a pricing or offer strategy that reflects the actual per-square-foot data rather than guesswork, and make sure you are not caught flat-footed by how quickly a listing here can go under contract.
Thornbrook 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 Thornbrook 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 Thornbrook sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in Thornbrook, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your Thornbrook home worth?
Get a no-obligation home value based on real comparable sales in Thornbrook, not an automated guess. Tell us about your home and we will personally prepare your numbers and a pricing strategy. No obligation, no spam.
See all homes for sale in Marietta →
23% of homes for sale in ZIP 30620 are already under contract (under contract ÷ under contract + active listings) — a read on how much of the available inventory buyers have already claimed. Source: MLS data (2026-09-22).
Thornbrook Market Scorecard
Thornbrook is currently a seller's market. About 3.4 months of supply, a median asking price of $417,500, and homes go under contract in about 12 days.
Go deeper: true cost calculator · affordability calculator.
Live data: realMLS, refreshed twice daily. Typical value: Zillow Research. Market metrics only; these describe homes for sale and recent sales, not residents.
Frequently Asked Questions
What is the median home price in Thornbrook?
How long do homes in Thornbrook take to sell?
Is Thornbrook a buyer's or seller's market right now?
Who is the best real estate agent for Thornbrook?
How do I find a top Marietta real estate agent who knows Thornbrook?
Can Momentum Realty connect me with an agent for Thornbrook?
Where is Thornbrook, and what county is it in?
Should you buy in Thornbrook?
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 (17 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?
You just read the data. Now see what your home is worth.
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.
Looking to buy here? Search homes for sale →
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A real valuation with real comps from a local listing agent, not an instant algorithm. Response within one business day.
See how Thornbrook fits the bigger picture — live prices, inventory, and Momentum Scores:
Nearby Communities
Explore more neighborhoods near Thornbrook with Momentum Realty’s local guides.