Castlemaine
Homes for Sale in Duluth, GA
All 91 homes for sale in Duluth, GA · median $470,000 · 72 homes for sale in 30097
True comps, carrying-cost math, and listings before the portals.
Photo courtesy of Eric C Okolo, Atlanta Realtors · via Georgia MLS
Over the 12 months ending 2026-09-20, 3 recorded sales closed at a median of $725,000, $137 per square foot, a median 10 days on market, sellers accepting 95% of original asking. Homes listed or recently sold were built 1996–2001. At the median price and Gwinnett County's 2025 rate of 27.1 mills, annual property tax runs about $7,860.
| Location | Duluth, Gwinnett County, GA · ZIP 30097 |
|---|---|
| Amenities listed by sellers | Pool, Tennis Court(s), Near Shopping, Clubhouse, Park, Security System |
| Sale prices, last 12 months | $725,000 median across 3 closed sales · $137 per sq ft |
| Days on market (closed sales) | 10 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, “Castlemaine key facts,” movewithmomentum.com/neighborhoods/castlemaine, data as of September 20, 2026.
Castlemaine's median sits at $725,000, but the median price per square foot of $136.87 tells the more useful story: these are larger homes trading at a moderate per-foot rate rather than small homes at a premium. That combination usually points to size and lot as the primary value drivers here, more than finish level or a single standout feature.
A median of 10 days on market is fast for anything at this price point, and it signals that well-priced, well-presented listings are not sitting. Sellers should expect real interest quickly if the home shows and prices correctly; buyers should have financing and decision-making lined up before they tour, because hesitation costs leverage in a market moving this quickly.
Nearby homes for sale
No active listings inside CastlemaineHomes for Sale in Duluth, 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
Castlemaine market snapshot (as of September 20, 2026): the median sale price is about $725K ($137 per sq ft over the trailing 12 months of closed sales), and a median 10 days on market for closed sales.
In ZIP 30097 (Duluth), 247 homes closed in the last 12 months at a median of $858K ($218/sq ft), up 2.4% year over year, with a median 31 days on market. Right now 56 active and 18 pending listings put supply at about 4.0 months — a balanced market. See the live ZIP 30097 housing market.
Georgia MLS sales records identify 8 homes in Castlemaine that have changed hands since 2023, built between 1994 and 2006 (median 2000), with a median living area of about 5,105 sq ft and a typical 6-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.
Castlemaine is a Duluth community in Gwinnett County where recent activity points to larger homes moving quickly relative to their price point.
The setting & the homes.
Aerial and on-site photos of Castlemaine. Swipe to explore the community.
Swipe or use the arrows → tap any photo to enlarge
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CastlemainePhotos from Georgia MLS listings in Castlemaine; content deemed reliable but not guaranteed.
Who Castlemaine is best for.
Best for
- Buying to secure more square footage per dollar without prioritizing a shared amenity package.
- Moving decisively once a home is identified, given how quickly comparable listings have been closing.
- Trading up from a smaller footprint and wanting a larger home in Gwinnett County near Duluth.
Probably not for
- Buyers who need confirmed on-site amenities as part of the decision, since none are identified in current MLS data.
- Buyers who want to negotiate slowly or make multiple return visits before deciding, given the pace recent sales have shown.
- Buyers focused strictly on minimizing price per square foot rather than overall home size.
Housing distress & ownership in Castlemaine, Duluth
Who owns here, how much is not owner-occupied, and how much for-sale inventory is under distress.
Source: Momentum Realty Research. Ownership & parcels from the FL DOR 2025 tax roll; distress from MLS active-listing status/remarks; price from MLS closed sales. Listing data © 2026 Georgia MLS (GAMLS). Information is deemed reliable but is not guaranteed. Deemed reliable but not guaranteed.
Castlemaine 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 Castlemaine buying strategy.
If we were buying in Castlemaine 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 Castlemaine.
Size Over Sticker Price
The math here is straightforward: a $725,000 median price against a $136.87 median price per square foot implies homes with considerable square footage. Buyers comparing Castlemaine to smaller-footprint communities at a similar median price should factor in that they may be getting meaningfully more house, not necessarily more upgrades or amenities, for that number.
With a median of only 10 days on market across the recent closings window, pricing discipline matters more than negotiation strategy. Homes that are priced in line with recent comparable sales are clearing quickly; homes priced aspirationally are the ones that linger and eventually require a correction. There is no community amenity package identified from current MLS listings, so value here is being driven by the homes and lots themselves rather than shared facilities.
The location and the amenities are priced into every listing in Castlemaine. The deal is won or lost on condition, the comps, and the renovation math.
Why work with Momentum here
In a market moving at a 10-day median pace, the difference between winning and losing a home often comes down to how fast an offer can be assembled and how well it is priced against real recent closings, not list prices. We track the current data on Castlemaine closely enough to tell you, before you write an offer, whether a listing is priced with the market or ahead of it.
Castlemaine 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 Castlemaine 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 Castlemaine sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in Castlemaine, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your Castlemaine home worth?
Get a no-obligation home value based on real comparable sales in Castlemaine, 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 Castlemaine?
How long do homes in Castlemaine take to sell?
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Where is Castlemaine, and what county is it in?
Should you buy in Castlemaine?
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 (8 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 Castlemaine fits the bigger picture — live prices, inventory, and Momentum Scores:
Nearby Communities
Explore more neighborhoods near Castlemaine with Momentum Realty’s local guides.