Permit Record

Residential

9 Mansfield St, Boston, MA 02134

ClassificationCertificate of Occupancy - ERECT
Reliable value$1,255,000
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Chris Timmins
Owner
Not in source
Architect
Not in source
Engineer
Not in source
Contractor license
Not in source
Building & lot · PLUTO
Building class
Not in source
Zoning district
Not in source
Lot area
Not in source
Year built
Not in source
Units (total)
Not in source
Units (residential)
Not in source
Units (commercial)
Not in source
Floor area
7,285 sq ft
Parcel & enrichment
Parcel APN
2201529000
Climate zone (IECC)
5A
Roof area (est.)
Not derivable — no building-size signal for this permit
HVAC tonnage (est.)
Not derivable — no building-size signal for this permit
Building type
Not in source
Building subtype
1-2FAM
Geocode & dates
Coordinates
42.3572, -71.1303
Geocode confidence
100%
Geocode source
Not in source
Issued
Oct 21, 2020
Applied
Not in source
Work class
Residential
Description
Source description

Five (5) Residential Units;with Six (6) Off Street Parking Spaces. ; ERT790279 Issued August 6, 2019 &; SF955207 Issued May 28, 2019

Status
Current status
finaled
Source status
Closed
Provenance
First seen by PermitCore
May 4, 2026 · 20:05 UTC
Last seen
Jun 24, 2026 · 23:04 UTC
Last changed
May 15, 2026 · 09:22 UTC
Data-quality checks0 of 12 flagged

0 of 12 data-quality rules flagged anything on this permit.

Checks not flagged

  • Geocode out of bounds
  • Geocode is sentinel
  • Issued date in the future
  • Issued date parse bug
  • Issued date is placeholder
  • Commercial units is placeholder
  • Residential units out of bounds
  • Residential units is placeholder
  • Total units out of bounds
  • Total units is placeholder
  • Valuation out of bounds
  • Valuation is placeholder
Project timeline at this parcel

9 permits at this parcel (parcel 2201529000) · May 28, 2019 – Oct 21, 2020

  1. Oct 21, 2020This permitOther · Finaled$1,255,000
  2. Dec 18, 2019ELV1034177MEP Electrical · Finaled$2,000
  3. Dec 18, 2019EFA1034155MEP Electrical · Finaled$2,000
  4. Dec 11, 2019E1030287MEP Electrical · Finaled$50,000
  5. Dec 10, 2019PL1027584MEP Plumbing · Finaled$50,000
  6. Dec 10, 2019G1027586MEP Plumbing · Finaled$18,000
  7. Sep 16, 2019ETS1001272MEP Electrical · Finaled$700
  8. Aug 6, 2019ERT790279New Construction Residential Sf · Issued$1,225,000
  9. May 28, 2019SF955207Alteration Residential · Issued$30,000

Full permit history at this parcel · as of Jul 8, 2026.

Developer details
Permit #
COO1078347
Canonical ID
69:COO1078347
Source permit ID
COO1078347
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