Boston Luxury Condo Intelligence · Est. 2001
The premier sales data + reporting platform

BOSTONCONDOMINIUMINTELLIGENCE

Stop relying on incomplete and scattered sales data. CURVE gives you the most complete Boston condo sales data, in-depth unit history, analytics, interactive displays, and client-ready reports in one intelligence platform.

106
108
136
131
171
233
367
442
446
Pier 4
22 Lib.
45 Prov.
Raffles
1 Dalton
1 Charles
Ritz Avery
Mill.Twr
Echelon
100 Shawmut22 Liberty25 Beacon45 Province50 LibertyBattery WharfEchelon SeaportFour Seasons PlaceIntercontinentalLovejoy WharfMandarin OrientalMillennium PlaceMillennium TowerOne CharlesOne DaltonPier 4Raffles BostonRitz-Carlton Avery StRitz-Carlton South StationSt. Regis ResidencesThe ArcherThe Carlton HouseThe ClarendonThe HeritageThe PierceThe QuinnThe SudburyThe WhitwellTrinity PlaceW BostonWinthrop Center100 Shawmut22 Liberty25 Beacon45 Province50 LibertyBattery WharfEchelon SeaportFour Seasons PlaceIntercontinentalLovejoy WharfMandarin OrientalMillennium PlaceMillennium TowerOne CharlesOne DaltonPier 4Raffles BostonRitz-Carlton Avery StRitz-Carlton South StationSt. Regis ResidencesThe ArcherThe Carlton HouseThe ClarendonThe HeritageThe PierceThe QuinnThe SudburyThe WhitwellTrinity PlaceW BostonWinthrop Center

The most complete condominium transaction dataset in Boston.

CURVE pieces together the fragmented data beneath every serious real estate market read: legal units, developer sales, resales, combo sales, deed context, appreciation, gain/loss history, and more.

343,084
Verified Closed Sales & Events
Defended closed sales & events across the live CURVE data set
'01'05'09'13'17'21'26
0 yrs
Of Historical Data
Every sale since 2000 — full market cycles
2000Start
2008Crash
2016Peak
2020COVID
2026Today
0%
Transaction level transparency
Full unit details, transaction history, and ownership economics centralized into one platform
Current + historical condo unit details
Developer sale, resales, combo + restricted sales
Appreciation, hold period, gain vs loss metrics
Beds, baths, sqft, Percent Interest, Registry of Deeds + assessor cross-checks.

Built for people who need to know the market and specific transactions better than anyone else in the room.

Agents, brokerages, investors, developers, lenders, and appraisers use CURVE when knowing your market's data matters makes a difference.

Agents & Brokers

Build real transaction expertise before the client conversation starts.

CURVE helps agents and brokers understand the transaction record behind the market, not just pull a few surface comps. Use it to sharpen your own read, prepare listing strategy, support buyer conversations, explain pricing, and show clients the sales history that actually matters: developer sales, resales, combo sales, appreciation, layouts, price per foot, and comparable activity across the market.

Know the transactions. Explain the market. Earn the trust.
Brokerages

Raise the market standard across the whole firm.

CURVE gives brokerage leadership a shared intelligence layer for the transaction data, neighborhoods, and assets where the firm competes. Agents walk into buyer consults, seller meetings, pricing reviews, and follow-ups with the same verified sale history, analytics, and client-ready reporting. The value is consistency: better-prepared agents, stronger advice, and a brokerage brand that feels more informed than everyone else in the room.

Make better preparation part of the brokerage brand.
Investors

Underwrite the transaction history, not the brochure.

Investors need to know how a unit has actually traded, appreciated, and performed against the surrounding market. CURVE shows sale history, prior basis, appreciation, hold periods, gain/loss outcomes, unit mix, and price-per-foot movement so you can compare opportunities with discipline. Use it before buying, before selling, and while tracking where value is moving.

See the basis. Understand the upside. Avoid the guesswork.
Developers

Understand where your assets sit in the market now.

Developers need more than launch pricing. CURVE shows how comparable transaction sets have absorbed, resold, appreciated, and held value across cycles, price bands, bedroom mixes, and unit sizes. Use it to understand current resale performance, buyer demand, competitive positioning, and where the market is moving before the next pricing, acquisition, financing, or asset-management decision.

Read the market clearly, even when new supply is quiet.
Lenders

Validate collateral with the transaction history behind the asset.

Neighborhood comps miss the transaction-level value drivers inside luxury condo assets. CURVE gives lenders unit-level sale history, prior-sale context, appreciation, financing signals, price-per-foot movement, and resale performance so collateral review is grounded in the exact market the borrower is entering. It helps credit teams understand support, risk, and liquidity before the questions start.

Sharper collateral review. Fewer blind spots.
Appraisers

Build valuations from transaction evidence, not guesswork.

Appraisers need defensible support when asset premiums, floor position, layout, and unit size matter. CURVE surfaces the closed sale history, unit characteristics, prior-sale basis, appreciation, and comparable transaction activity needed to explain adjustments with less guesswork. It is built for valuation work where the wrong comp set can distort the entire conclusion.

Defend the value with better underlying evidence.
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The premier data, analytics, and reporting platform every professional needs

CURVE shows what actually happened in the market, cleans the fragmented and scattered transaction context, and turns verified data into analysis you can leverage with clients.

Full-market coverage
×MLS sold data

MLS only shows what was listed there. Many luxury condos, developer closings, private resales, off-market trades, package deals, and high-end transfers never hit the MLS.

CURVE

CURVE pulls every sale, deed event, unit record, and source-backed transaction from the Registry of Deeds, assessor database, and other verified sources to show the full market, not just the MLS-visible slice.

Comp-quality sale context
×MLS sold data

MLS can tell you when some units are sold. It cannot tell you whether the sale was developer inventory, a true resale, a combo residence, a restricted transfer, or a deed event that should not be treated as a normal comp.

CURVE

CURVE classifies the sale before you use it: developer sale vs resale, combo-sale logic and history, deed context, prior-sale basis, appreciation metrics, and transfer quality so the wrong record does not distort your analysis.

Unit lineage over time
×MLS sold data

MLS shows you basic information and listing remarks, but it is still a point-in-time listing record. MLS does not show how the unit has traded over time or whether its last sale actually supports today’s value.

CURVE

CURVE connects the unit’s sale lineage: prior prices, hold period, appreciation, gain/loss, cash vs mortgage, resale order, and comparable activity across the sales data so you can explain why the unit should command its number.

Defensible market logic
×MLS sold data

MLS forces agents to improvise the market read: download comps, copy screenshots, build a CMA, remember property quirks, and manually explain why one sale matters more than another.

CURVE

CURVE turns cleaned records into market logic: appreciation, gain vs loss, bedroom mix, sqft bands, price ranges, sale cycles, and transaction performance that make pricing, buyer advice, and seller conversations actually defensible.

Client-ready output
×MLS sold data

MLS gives you raw records. You then spend hours piecing together comps, screenshots, notes, and proposals that may still be based on an incomplete view of the transaction history and market.

CURVE

CURVE turns in-depth data analysis into client-ready assets: interactive reports, unit sale histories, custom data feeds, tracking updates, and shareable links that make your expertise visible before you even start explaining.

The point is simple: CURVE gives you the data, analysis, and reports that MLS cannot.
See CURVE

CURVE Plans

Plus

$95/month
Start 7-day free trial
Verified sales historyBoston condo transaction data analyzed by unit, closing, developer sale vs resale, combo sales, deed context, and more.
Unit research workflowCheck a unit’s layout, financing, prior sales, appreciation, and comparable activity across the broader sales record.
Advanced market analyticsSee all data plus appreciation and gain vs loss metrics by bedroom, square feet, price range, and sale cycle.
Client-ready report studioCreate polished, fully custom interactive reports for deep analysis, listing prep, pricing, buyers, and live presentations.
Sharing + TrackingShare reports, unit sale histories, and custom data feeds. Track saved searches, client criteria, and new market activity.

Brokerage

Custom15 agent minimum
Get in touch
Everything in PlusEvery agent gets verified sales history, unit research, advanced analytics, report studio, sharing, and Tracking.
Team-wide agent accessGive agents the same professional-grade market intelligence and presentation layer without each person rebuilding their own process.
Brokerage coverage strategyOrganize market and neighborhood coverage around where the firm competes, recruits, farms, and wants to win more listings.
Consistent client standardsMake every seller, buyer, and investor conversation feel sharper with shared reports, data views, and brokerage-quality materials.
Firm-wide data advantageTurn CURVE into a visible brokerage differentiator: better-prepared agents, stronger client trust, and more defensible market advice.

Building intelligence index

Every Boston Condo Building. Every Sale. Every Unit.

A live index of Boston luxury condo buildings, sale depth, resale activity, and unit-level history. Click any building to unlock its dedicated data workspace.

Live synced May 11, 4:00 PM EDT
Building
Avg $/SF (last 12 mo)
Units
Total Sales
Resales
History
Ritz-Carlton South Station
Downtown
$2,070/SF
166
27
0
Mar 2026–May 2026
$2,070/SF
Avg $/SF (last 12 mo)
166
Units
27
Sales
0
Resales
Mar 2026–May 2026
History
Winthrop Center
Downtown
$2,079/SF
317
142
2
Apr 2023–May 2026
$2,079/SF
Avg $/SF (last 12 mo)
317
Units
142
Sales
2
Resales
Apr 2023–May 2026
History
One Dalton
Back Bay
$2,680/SF
171
207
44
May 2019–May 2026
$2,680/SF
Avg $/SF (last 12 mo)
171
Units
207
Sales
44
Resales
May 2019–May 2026
History
Raffles Boston
Back Bay
$2,672/SF
131
137
10
Jun 2023–Apr 2026
$2,672/SF
Avg $/SF (last 12 mo)
131
Units
137
Sales
10
Resales
Jun 2023–Apr 2026
History
Millennium Tower
Downtown
$1,440/SF
442
677
240
Jul 2016–Apr 2026
$1,440/SF
Avg $/SF (last 12 mo)
442
Units
677
Sales
240
Resales
Jul 2016–Apr 2026
History
Mandarin Oriental
Back Bay
$2,114/SF
76
164
90
Aug 2008–Apr 2026
$2,114/SF
Avg $/SF (last 12 mo)
76
Units
164
Sales
90
Resales
Aug 2008–Apr 2026
History
100 Shawmut
South End
$1,137/SF
138
148
10
May 2021–Jan 2026
$1,137/SF
Avg $/SF (last 12 mo)
138
Units
148
Sales
10
Resales
May 2021–Jan 2026
History
22 Liberty
Seaport
$2,357/SF
108
189
81
Nov 2015–May 2026
$2,357/SF
Avg $/SF (last 12 mo)
108
Units
189
Sales
81
Resales
Nov 2015–May 2026
History
45 Province
Downtown
$1,170/SF
136
253
117
May 2009–Mar 2026
$1,170/SF
Avg $/SF (last 12 mo)
136
Units
253
Sales
117
Resales
May 2009–Mar 2026
History
50 Liberty
Seaport
$2,510/SF
120
181
61
Mar 2018–Mar 2026
$2,510/SF
Avg $/SF (last 12 mo)
120
Units
181
Sales
61
Resales
Mar 2018–Mar 2026
History
Battery Wharf
Waterfront
$1,191/SF
103
223
120
Apr 2008–Apr 2026
$1,191/SF
Avg $/SF (last 12 mo)
103
Units
223
Sales
120
Resales
Apr 2008–Apr 2026
History
Echelon Seaport
Seaport
$1,690/SF
446
507
70
Dec 2019–May 2026
$1,690/SF
Avg $/SF (last 12 mo)
446
Units
507
Sales
70
Resales
Dec 2019–May 2026
History
Four Seasons Place
Back Bay
$1,946/SF
95
249
157
Aug 1985–Mar 2026
$1,946/SF
Avg $/SF (last 12 mo)
95
Units
249
Sales
157
Resales
Aug 1985–Mar 2026
History
Intercontinental
Waterfront
$1,216/SF
129
338
211
Oct 2006–May 2026
$1,216/SF
Avg $/SF (last 12 mo)
129
Units
338
Sales
211
Resales
Oct 2006–May 2026
History
Lovejoy Wharf
West End
$1,256/SF
157
169
31
Oct 2017–May 2026
$1,256/SF
Avg $/SF (last 12 mo)
157
Units
169
Sales
31
Resales
Oct 2017–May 2026
History
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Every Deal Going Back Decades

A live preview of the same report data model: unit, date, price, financing, $/SF, square footage, beds, sale type, and gain/loss. Five rows show. The full ledger unlocks after signup.

Ritz-Carlton South StationDowntown
Winthrop Center
One Dalton
Raffles Boston
Millennium Tower
Mandarin Oriental
100 Shawmut
22 Liberty
45 Province
50 Liberty
Battery Wharf
Echelon Seaport
Four Seasons Place
Intercontinental
Lovejoy Wharf
Explore the sales data
Downtown
Ritz-Carlton South Station
166
Units
27
Total Sales
$2,070
Avg $/SF (last 12 mo)
Mar 2026
First Sale
5 most recent live sales
Live synced May 11, 4:00 PM EDT
Unit
Date
Price
Cash?
$/SF
Sq Ft
Beds
Sale Type
Gain/Loss
4111
5/6/26
$1.56m
Financed
1,853
842
1
Dev Sale
4905
5/6/26
$5.36m
Financed
2,968
1,805
3
Dev Sale
4110
5/6/26
$4.40m
Financed
2,671
1,647
2
Dev Sale
4109
5/6/26
$1.66m
Financed
1,988
837
1
Dev Sale
4510
5/5/26
$3.99m
Financed
2,424
1,647
2
Dev Sale
22 additional rows locked for Ritz-Carlton South Station
Full downloadable ledger, filters, unit pages, and every historical transaction.
Unlock full report