In Estate Sales, How To Use Comps To Set Prices: Where To Find Comparable Sales Online
Where to find comparable sales online and how to use them for estate‑sale pricing Below is a practical, prioritized guide showing where to look for comps, how to pick the best comparables, and a simple workflow to turn those comps into a defensible price range for estate‑sale lots. I include the most useful online sources and what each is best for, plus quick tips and sample language for lot tags. Best online sources for comparable sales Source Best for Why use it Auction databases (Artnet, Invaluable, LiveAuctioneers) Fine art, original works, higher‑value antiques Realized hammer prices and sale records; searchable by artist, medium, size, and date. Specialty auction houses (Sotheby’s, Christie’s, Bonhams) High‑value art, designer furniture, rare collectibles Cataloged lots with provenance, condition notes, and sale results—good for market context. Online marketplaces (eBay, Etsy, 1stDibs) Mass‑market antiques, vintage goods, small collectibles Wide range of listings and completed‑sales filters (eBay’s Sold/Completed) to see realized prices for similar items. Antique and collectible price guides (WorthPoint, Kovels) Antiques, pottery, glass, militaria, ephemera Aggregated historical sales, catalog images, and price trends behind paywalls; useful for older or niche items. Local auction house websites and regional classifieds (LiveAuctioneers local, Craigslist, Facebook Marketplace) Furniture, estate household items, regionally priced goods Local demand and shipping constraints often determine realized prices—check local listings and recent local auction results. Dealer and gallery listings Contemporary art, designer furniture, branded antiques Current asking prices show retail expectations; compare to auction realizations to set estate sale pricing. Specialized databases and registries (Artprice, AskART, Bidsquare) Artist market histories and auction analytics Useful for tracking an artist’s market trajectory and frequency of sales. How to choose the best comparables (practical rules) Match the item type and medium — compare oil to oil, lithograph to lithograph, original painting to original painting, not prints to originals. Match size and format — size affects price; compare works within ±20% of the dimensions when possible. Match condition and restoration status — adjust price down for visible damage or heavy restoration; up for pristine condition. Match edition and signature for prints — signed, numbered, and small‑edition prints are worth more than unsigned or open editions. Match provenance and exhibition history — documented provenance or catalog inclusion raises value; factor this into your high estimate. Prefer recent realized sales (last 2–3 years) — markets change; prioritize recent hammer prices over decade‑old results. Use local sales for bulky or low‑value items — shipping and local demand strongly affect furniture and large items. Simple workflow to set a price using comps Document the item: photos (front, back, signature/labels), measurements, condition notes, and any provenance. Search 3–5 comps from the sources above, prioritizing realized auction results and completed marketplace sales. Record: source, date, realized price, buyer’s premium (if auction), and condition differences. Normalize prices: convert auction hammer prices to comparable estate‑sale net by subtracting typical buyer’s premium (20–30%) and adding local selling costs or convenience discounts. Adjust for condition and rarity: apply percentage adjustments (example: minor issues −10–20%; moderate −20–40%; major −40%+). Set a pricing range: Low (quick sale) = ~60% of mid; Mid (expected) = adjusted market median; High (optimistic) = 120–150% of mid if provenance/condition justify it. Choose sale channel: list high‑value or rare items for auction/consignment; price everyday items for estate sale or local marketplace. Document your comps on the lot tag or inventory sheet: cite 1–2 comparables and the source to justify price to buyers and heirs. Quick examples (how to apply the workflow) Signed limited edition print (signed, 25/100) Found comps: eBay completed sales $400, gallery asking $650, auction realized $520 (hammer). Adjust auction to retail: $520 − 25% buyer’s premium ≈ $390. Mid market ≈ $400–$450. Estate price: $300–$450 depending on urgency. Antique oak dining table (good local condition) Found comps: local auction realized $600 (includes buyer’s premium), Craigslist sold $450, dealer asking $1,200. Normalize auction: $600 − 20% ≈ $480. Estate price: $350–$600 (consider local pickup and condition). Where to search first, by item type (quick map) Fine art and signed works → Artnet, Invaluable, Sotheby’s/Christie’s archives, AskART. Prints and posters → eBay completed listings, Heritage Auctions, 1stDibs. Furniture and household → LiveAuctioneers local, Craigslist, Facebook Marketplace, local auction houses. Jewelry and watches → Auction house results (Sotheby’s, Christie’s), specialized watch/jewelry marketplaces, eBay completed. Collectibles and ephemera → WorthPoint, eBay completed, specialist forums and collector sites. Common mistakes to avoid Using asking prices as realized comps — asking prices are not the same as what buyers paid. Prefer completed or realized sales. Ignoring buyer’s premium and fees — auction prices include buyer’s premium; normalize to net seller value. Overlooking shipping and local demand — bulky items often sell for less locally; factor in pickup convenience. Relying on a single comp — use multiple comps and explain variance in your pricing notes. Failing to document — keep records of the comps you used; buyers and heirs may ask how you arrived at prices. Lot tag wording examples Transparent tag: “Signed lithograph, 18 x 24 in. Good condition. Comparable realized auction prices $350–$520 (see LiveAuctioneers 2025; eBay completed 2024). Estate price: $375.” Conservative tag: “Antique oak table, 72 in. Good condition. Local auction comps $450–$600. Estate price: $475 (local pickup).” Tools and tips to speed the process Use browser saved searches and alerts on eBay, LiveAuctioneers, and Invaluable to track similar items. Take good photos and measurements—better listings attract more accurate comps and buyers. Keep a simple spreadsheet: item, comps (source/date/price), adjustments, final price. This creates transparency for heirs and buyers. When in doubt for high‑value items: get a professional appraisal or consign to a reputable auction house.