Rare Flatiron building unit available! This prime Union Square condo is a must-see on any urban-dweller's wish list! This open-concept home features 9-foot ceilings, maple hardwood floors, and oversized windows allowing for an abundance of natural light. The beautiful kitchen with breakfast bar boasts stainless steel appliances, white shaker-style cabinets, and granite countertops. Amenities include a 1-car parking, private deck, in-unit laundry, central air, large closets and a private storage closet. The Flatiron is a professionally managed luxury elevator building with a common roof-deck, and bike racks. With a walk score of 95, conveniently located near Whole Foods, Bow Market, Target, and the New Union Sq. T.
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| Year | Land | Building | Total | Change |
|---|---|---|---|---|
| FY2025 | $0 | $860,300 | $860,300 | — |
| Date | Price | Book/Page |
|---|---|---|
| Sep 22, 2021 | $1 | 78755/0530 |
| Jan 26, 2021 | $10 | 76781/0321 |
| May 5, 2020 | $835,000 | 74606/0136 |
| Sep 14, 2018 | $900,000 | 71619/0188 |
| Aug 9, 2018 | $180,137 | 71451/0235 |
| Aug 1, 2018 | $268,824 | 71459/0046 |
| Feb 28, 2018 | $445,000 | 70683/0471 |
| Dec 1, 2017 | $125,000 | 70322/0309 |
| Nov 3, 2017 | $925,000 | 70189/0276 |
| Nov 2, 2017 | $925,000 | 70182/0210 |
| Issued | Type / Work | Status | Value |
|---|---|---|---|
| Dec 22, 2025 |
Building Permit
Commercial Other
Sign install
By Carol Fournier
#52678416
|
Open | $330 |
| Sep 10, 2025 |
Certificate of Occupancy
Commercial
Certificate of Occupancy for Bakery Tenant
OCCUPANT LOAD 14
#52260483
|
Open | $195 |
| Jun 10, 2025 |
Building Permit
Residential Repair
Insulate part of the kitchen ceiling , sheetrock with 5/8 fire code blue boards and plaster it, prime and paint ceiling and wall, install…
By Delson Filho
#51982396
|
Closed | $460 |
| Jun 4, 2025 |
Electrical Permit
Residential
Electrical repairs due to water leak , in accordance with Building permit.
By Spangler Gross
#52066122
|
Open | $45 |
| Sep 16, 2024 |
Building Permit
Commercial Other
Install ductless mini split heat pump for bakery retail space
By Jason Chui
#51110796
|
Open | $400 |
| May 5, 2024 |
Plumbing Permit
Commercial - Existing
Tenant Fitup (Bakery)
#14276619
|
Closed | $170 |
| May 2, 2024 |
Building Permit
Commercial Renovation
Take over project of permit #B19-000588 for Bakery Tenant Fit Out. Rough inspections already completed.
By Jason Chui
#14081317
|
Closed | $2,848 |
| Apr 28, 2024 |
Electrical Permit
Commercial
Tenant Fitup (Bakery)
B23-002188
By Jason Chui
#14276603
|
Closed | $689 |
| Apr 4, 2023 |
Electrical Permit
Commercial
wire the bakery store
Withdrawn at request of Owner
By Mark Lau
#10921717
|
Closed | $435 |
| Mar 16, 2023 |
Electrical Permit
Commercial
Wiring of mini splits in bakery.
By Costas Hatzis
#11502940
|
Closed | $105 |
| Dec 7, 2022 |
Electrical Permit
Commercial
Wiring of service for bakery.
By Costas Hatzis
#10975324
|
Closed | $210 |
| Dec 23, 2020 |
Gas Fitting
Commercial - Existing
Gas too water heater
#7893852
|
Open | $60 |
| Dec 23, 2020 |
Plumbing Permit
Commercial - Existing
Tenant fit out for a bakery
#7893850
|
Open | $190 |
| Dec 25, 2019 |
Building Permit
Commercial Renovation
tenant fit out for a bakery
CONTRACTOR REMOVED BY OWNER SEE ATTACHED LETTER - JS 12/8/23
By LUISHUN LAU
#5153561
|
Closed | $3,800 |
| Nov 11, 2019 |
Electrical Permit
Commercial
Bakery Tenant Fitup
By Jason Chui
#6621370
|
Voided | $550 |
| Nov 28, 2017 |
Electrical Permit
Commercial
wiring of half bath.
By Costas Hatzis
#3774093
|
Closed | $75 |
| Nov 13, 2017 |
Plumbing Permit
Commercial - New
half bath
#3748387
|
Closed | $230 |
| Nov 12, 2017 |
Building Permit
Residential Alteration
add half bath in commercial space
By Frank Barbosa
#3743492
|
Closed | $130 |
| Oct 10, 2017 |
Certificate of Occupancy
Residential
5 of 14 condominium units and 2 commercial spaces
ZBA 2012-21
Issued Units: 203, 204, 301, 303 & 304
corrected CO after it was issued
#3721527
|
Open | $2,220 |
| Jan 30, 2017 |
Electrical Permit
Residential
wiring of 16 units
By Costas Hatzis
#3388055
|
Closed | $536 |
| Dec 19, 2016 |
Gas Fitting
Residential - New
rental units
#3425036
|
Closed | $590 |
| Nov 9, 2016 |
Gas Fitting
Residential - New
3 heaters
#3362618
|
Closed | $200 |
| Oct 31, 2016 |
Plumbing Permit
Residential - New
14 rental units
#3218041
|
Closed | $1,840 |
| Dec 29, 2015 |
Gas Fitting
Residential - New
gas pipe and vent temporary heaters
#2539052
|
Closed | $190 |
| Dec 8, 2015 |
Electrical Permit
Residential
new building
See E16-001997
By Michael Shaughnessy
#2457956
|
Closed | $4,306 |
| Jan 14, 2015 |
Electrical Permit
Residential
wire foundation ground
By Joao Lopes
#2016299
|
Closed | $90 |
| Sep 8, 2014 |
Electrical Permit
Residential
wire and install temporary electrical service
By Joao Lopes
#1827944
|
Closed | $115 |
Discrepancies found between MLS and assessor records.
| Field | Assessor | MLS | Match |
|---|---|---|---|
| Sqft | 1,176 | 926 | ✗ |
| Year built | 2,015 | 2,015 | ✓ |
Union Square
70 Prospect St # 304, Somerville MA 02143
Somerville, MA 02143
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 05/27/2026 | 📋 Status: Active under contract | - | - | - | Active → Active Under Contract |
| 05/26/2026 | ⏳ Pending Sale | - | - | - | Offer accepted, sale pending |
| 05/12/2026 | ↓ Price Reduced | $850,000 | $20,000 | - | From $870,000 to $850,000 (-2.3%) |
| 05/04/2026 | 👁️ Showing Instructions Updated | - | - | - | New showing requirements |
| 04/30/2026 | 🏠 Listed for Sale | $870,000 | - | - | Original listing |
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