Overview Property Details Payment Calculator Walkability

Add to favorites

Remove from favorites
Send to Friend
Watch changes on this property

Pending

12 School St # 1, Boston MA 02129

$1,100,000

Estimated $7,314/month Calculator

Condo

3 Bedrooms

Baths

1247

Total Parking: 0

Built in 1890

Located just minutes from Charlestown’s best restaurants, shops & the orange line, this recently renovated duplex blends historic charm with modern updates. Featuring 9.5 ft ceilings and a sought-after open layout, the main living area offers direct access to a serene private patio, perfect for entertaining. The newly renovated kitchen boasts a quartz waterfall island, stainless steel appliances, herringbone marble backsplash, hardwood floors & spacious dining area. Sun-filled living room features a custom gas fireplace with historic marble mantle. A generously sized guest bedroom and beautifully updated full bath complete the main level. Downstairs, the expansive primary suite offers a walk-in closet and ensuite bath, while the third bedroom is ideal for a home office, den, nursery or gym. Complete with central AC, in-unit laundry, ample storage & an unbeatable location, this is Charlestown living at its finest.

This home has been viewed 11 times

Last Checked: May 30th, 2026 at 10:23am (Source: MLS PIN #73517843)

Air Conditioning

Lead Paint Free

General Information for 12 School St # 1, Boston MA 02129

Listing ID73517843

Property TypeCondominium

Price1100000 ($882.12/SqFt)

Building Style2/3 Family

CityBoston

CountySuffolk

MLS AreaCharlestown

Neighborhood(s)

Total Parking0

Unit Level1

Levels in Unit2

Year Built1890

Year Built SourcePublic Records

Year Built DetailsActual

Building Construction Status

ZoningCD

Unit Features for 12 School St # 1, Boston MA 02129

Approximate Living Area Total1247

Living Area Includes BasementYes

Rooms6

Bedrooms3

Primary En Suite BathroomYes

BasementFull

Cooling1, Split

LaundryArchway

Fireplaces

Outdoor SpaceNo

Flooring

Electric

AppliancesRange

Condo Association Features for 12 School St # 1, Boston MA 02129

Pet PolicyNot Allowed

Building Management

Building Construction Status

Number of Units2

Units Owner Occupied2

Year Built1890

Year Built DetailsActual

Year Built SourcePublic Records

WaterPublic

SewerPublic Sewer

Parking Features1

Building Amenities

Disclosures for 12 School St # 1, Boston MA 02129

Lead PaintNone

UFFI

Living Area Includes BasementYes

Living Area Disclosure

Building Area SourcePublic Records

Special Listing Conditions

ExclusionsBasement Fridge

Owner Occupancy Sourceowner

Compensation Based On

Documents Available

Financial Information for 12 School St # 1, Boston MA 02129

Association Fee

Optional Fee0

Association Fee IncludesLandscaping

Optional Fee Includes

Association Fee FrequencyMonthly

Assessed Value$866,200

Real Estate Tax6438.61

Tax Year2026

Location Information for 12 School St # 1, Boston MA 02129

Neighborhood(s)

MLS AreaCharlestown

Area AmenitiesWalk/jog Trails

Contact Information for 12 School St # 1, Boston MA 02129

Agent

Name: Sarah Fillmann

Office

Name: Coldwell Banker Realty - Boston

Phone: 617-242-0025

Team Members

Payment Calculator

, Interest

Property Taxes 536.55

Principal & Interest 6777.85

HOA Dues

Term

Interest

Home Price

Down Payment

Exclusive Listing Agent

Coldwell Banker Realty - Boston

Sarah Fillmann

Agent Phone

Office Phone

(617) 242-0025

Text Agent Call Agent Call Office

Array
(
    [acres] => Approx. 0 acres (0 SqFt)
    [add_date] => 2026-05-13 22:13:35
    [address] => School St
    [agent] => Array
        (
            [address] => 42 8th Street #3212
            [city] => South Boston
            [id] => CN254490
            [name] => Sarah Fillmann
            [national_association] => 449591985
            [office] => AN6194
            [state] => MA
            [zip] => 02129
        )

[apod_available] => Array
        (
        )

[appliances] => Array
        (
            [0] => Range
        )

[approx_living_area_total] => 1247
    [approx_lot_size_acres] => 0
    [approx_lot_size_sqft] => 0
    [assessed_value] => $866,200
    [association] => 
    [association_fee] => Array
        (
        )

[association_fee_frequency] => Array
        (
            [0] => Monthly
        )

[association_fee_includes] => Array
        (
            [0] => Landscaping
        )

[association_required] => Array
        (
        )

[available_date] => 
    [available_now] => 0
    [basement] => Array
        (
            [0] => Full
        )

[bathrooms] => 
    [bedrooms] => 3
    [building_amenities] => Array
        (
        )

[building_area_source] => Array
        (
            [0] => Public Records
        )

[building_management] => Array
        (
        )

[building_debug] => 
    [building_id] => 
    [building_parent] => 0
    [building_name] => 
    [building_name_from_address] => 
    [building_url] => 
    [buyer_agent_compensation] => 
    [buyer_agent_id] => 
    [buyer_office_id] => 
    [c_style] => Array
        (
        )

[c_type] => Array
        (
            [0] => Condominium
        )

[cap_rate] => 
    [city] => Boston
    [community_features] => Array
        (
            [0] => Walk/jog Trails
        )

[compensation_based_on] => Array
        (
        )

[complex_complete] => Array
        (
        )

[construction_materials] => Array
        (
            [0] => Frame
        )

[construction_status] => 
    [cooling] => Array
        (
            [0] => 1
            [1] => Split
        )

[cooperating_agent_commission] => Array
        (
        )

[county] => Suffolk
    [cultivation_acres] => 
    [date_available_note] => 
    [deposit_amount] => Array
        (
        )

[deposit_required] => Array
        (
        )

[deqe] => 
    [description] => Located just minutes from Charlestown’s best restaurants, shops & the orange line, this recently renovated duplex blends historic charm with modern updates. Featuring 9.5 ft ceilings and a sought-after open layout, the main living area offers direct access to a serene private patio, perfect for entertaining. The newly renovated kitchen boasts a quartz waterfall island, stainless steel appliances, herringbone marble backsplash, hardwood floors & spacious dining area. Sun-filled living room features a custom gas fireplace with historic marble mantle. A generously sized guest bedroom and beautifully updated full bath complete the main level. Downstairs, the expansive primary suite offers a walk-in closet and ensuite bath, while the third bedroom is ideal for a home office, den, nursery or gym. Complete with central AC, in-unit laundry, ample storage & an unbeatable location, this is Charlestown living at its finest.
    [disclosures] => 
    [documents_available] => Array
        (
        )

[electric] => Array
        (
        )

[electric_expense] => Array
        (
        )

[elementary_school] => 
    [en_suite_bath] => Array
        (
            [0] => Yes
        )

[energy_features] => 
    [entry_level] => Array
        (
        )

[estimated_monthly_payment] => 
    [exclusions] => Array
        (
            [0] => Basement Fridge
        )

[exterior_features] => Array
        (
            [0] => Porch
        )

[facilitator_compensation] => 
    [fee_paid_by_tennant] => 
    [financial_data_source] => Array
        (
        )

[fireplaces] => Array
        (
        )

[first_month_required] => Array
        (
        )

[floor_number] => 0
    [flooring] => Array
        (
        )

[for_sale_by_owner] => 
    [foundation_area] => 
    [foundation_materials] => Array
        (
        )

[frontage_length] => 
    [full_baths] => 
    [garage_parking] => 0
    [gas] => Array
        (
        )

[gas_expense] => Array
        (
        )

[gross_income] => Array
        (
        )

[half_baths] => 
    [handicap_access] => 
    [heating] => 
    [heating_expense] => Array
        (
        )

[high_school] => 
    [horse_features] => Array
        (
        )

[horse_permitted] => 0
    [hot_water] => Array
        (
        )

[id] => 
    [insurance_expense] => Array
        (
        )

[insurance_required] => Array
        (
        )

[interior_features] => Array
        (
        )

[last_month_required] => Array
        (
        )

[last_sync_date] => 2026-05-30 10:23:35
    [laundry_features] => Array
        (
            [0] => Archway
        )

[lead_paint] => Array
        (
            [0] => None
        )

[lease_term] => Array
        (
        )

[levels_in_unit] => 2
    [living_area] => 
    [living_area_disclosure] => Array
        (
        )

[living_area_includes_basement] => Array
        (
            [0] => Yes
        )

[lot_features] => Array
        (
        )

[management_expense] => Array
        (
        )

[middle_school] => 
    [miscellaneuos_expense] => Array
        (
        )

[mls_area] => Charlestown
    [mls_id] => 73517843
    [neighborhoods] => 
    [net_income_calc] => -6438
    [net_operating_income] => Array
        (
        )

[number_of_lots] => Array
        (
        )

[number_of_units] => 2
    [office] => Array
        (
            [id] => AN6194
            [name] => Coldwell Banker Realty - Boston
            [phone] => 617-242-0025
        )

[operating_expense] => Array
        (
        )

[optional_fee_includes] => Array
        (
        )

[optional_price] => 0
    [outdoor_space_available] => Array
        (
            [0] => No
        )

[owner_occupancy_source] => owner
    [parking_features] => Array
        (
            [0] => 1
        )

[pasture_area] => 
    [patio_and_porch] => Array
        (
            [0] => Covered
        )

[perc_test] => Array
        (
        )

[perc_test_date] => 
    [pet_policy] => Array
        (
            [0] => Not Allowed
        )

[phone] => 
    [pool_features] => Array
        (
        )

[price] => 1100000
    [price_per_sqft] => 882.12
    [price_per_unit] => 550000
    [private_pool] => 
    [property_sub_type] => Array
        (
            [0] => Condominium
        )

[real_estate_tax] => 6438.61
    [references_required] => Array
        (
        )

[rent_includes] => Array
        (
        )

[repair_maintenance_expense] => Array
        (
        )

[road_frontage_type] => Array
        (
        )

[roof_material] => Array
        (
        )

[rooms] => 6
    [schools] => 
    [senior_community] => 
    [sewer] => Array
        (
            [0] => Public Sewer
        )

[sewer_expense] => Array
        (
        )

[short_sale] => Array
        (
        )

[special_listing_conditions] => Array
        (
        )

[state] => Massachusetts
    [state_code] => MA
    [status] => Array
        (
            [0] => Pending
        )

[street_number] => 12
    [structure_type] => Array
        (
            [0] => 2/3 Family
        )

[style] => Array
        (
        )

[subagent_compensation] => 
    [tag_accessible_features] => 
    [tag_air_conditioning] => 1
    [tag_association_pool] => 
    [tag_beach_access] => 
    [tag_beach_front] => 
    [tag_elevator] => 
    [tag_equestrian] => 
    [tag_garage_parking] => 
    [tag_generator] => 
    [tag_green_features] => 
    [tag_laundry] => 1
    [tag_lead_paint_free] => 1
    [tag_loft] => 
    [tag_pet_friendly] => 
    [tag_pre_construction] => 
    [tag_private_outdoor_space] => 
    [tag_private_pool] => 
    [tag_professional_management] => 
    [tag_recently_renovated] => 
    [tag_senior_community] => 
    [tag_townhouse] => 
    [tag_waterfront] => 
    [tag_waterview] => 
    [tax_year] => 2026
    [team] => CN254490
    [team_agents] => Array
        (
            [CN254490] => Array
                (
                    [agent_mls_id] => CN254490
                    [full_name] => Courtney Collier
                    [address] => 462 Main Street #1
                    [city] => Boston
                    [state] => MA
                    [postal_code] => 02129
                    [national_association_id] => 276647908
                    [office_mls_id] => AN6194
                )

)

[terms] => Array
        (
        )

[timber_acres] => 
    [title_5] => 
    [total_gross_expense] => 6438
    [total_gross_income] => 0
    [total_parking] => 0
    [trash_expense] => Array
        (
        )

[travel_routes] => 
    [uffi] => Array
        (
        )

[unit_1_bathrooms] => 
    [unit_1_bedrooms] => 
    [unit_1_floor] => 
    [unit_1_lease] => Array
        (
        )

[unit_1_levels] => 
    [unit_1_rent] => Array
        (
        )

[unit_2_bathrooms] => 
    [unit_2_bedrooms] => 
    [unit_2_floor] => 
    [unit_2_lease] => Array
        (
        )

[unit_2_levels] => 
    [unit_2_rent] => Array
        (
        )

[unit_3_bathrooms] => 
    [unit_3_bedrooms] => 
    [unit_3_floor] => 
    [unit_3_lease] => Array
        (
        )

[unit_3_levels] => 
    [unit_3_rent] => Array
        (
        )

[unit_4_bathrooms] => 
    [unit_4_bedrooms] => 
    [unit_4_floor] => 
    [unit_4_lease] => Array
        (
        )

[unit_4_levels] => 
    [unit_4_rent] => Array
        (
        )

[unit_level] => 1
    [unit_number] => 1
    [units_owner_occupied] => 2
    [unparsed] => 12 School St # 1, Boston MA 02129
    [utilities] => Array
        (
        )

[view] => Array
        (
        )

[water] => Array
        (
            [0] => Public
        )

[water_expense] => Array
        (
        )

[water_views] => Array
        (
        )

[water_views_features] => Array
        (
        )

[waterfront] => 0
    [waterfront_features] => Array
        (
        )

[year_built] => 1890
    [year_built_details] => Actual
    [year_built_source] => Public Records
    [year_renovated] => 
    [zip] => 02129
    [zips] => 
    [zoning] => CD
    [zoning_details] => 
    [media] => Array
        (
            [0] => https://www.bostonrealestate.com/wp-content/uploads/WPL/770833/MLS1.jpg
            [1] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=2
            [2] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=3
            [3] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=4
            [4] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=5
            [5] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=6
            [6] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=7
            [7] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=8
            [8] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=9
            [9] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=10
            [10] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=11
            [11] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=12
            [12] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=13
            [13] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=14
            [14] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=15
            [15] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=16
            [16] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=17
            [17] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=18
            [18] => https://media.mlspin.com/photo.aspx?mls=73517843&w=1024&h=768&n=19
        )

[raw] => 
)

EXIT

17 More Photos