Overview Property Details Payment Calculator Walkability

Add to favorites

Remove from favorites
Send to Friend
Watch changes on this property

Active

133 I St # 3, Boston MA 02127

$1,290,000

Estimated $9,028/month Calculator

Condo

3 Bedrooms

Baths

1772

Total Parking: 0

Built in 1900

Perched on the top floor, this sun-drenched 3BR/2BA penthouse is the one you've been searching for. The living room sets the tone immediately — soaring ceilings with a skylight, an exposed brick wall with fireplace, and rich hardwood floors that run throughout. A true chef's kitchen anchors the space, complete with a pantry for effortless everyday living. Retreat to the expansive primary suite, where a custom built-in window seat and en-suite bath create a private sanctuary. Two additional queen-sized bedrooms offer flexibility for guests or a home office. Step outside to two private outdoor spaces, including a rooftop deck with sweeping water views — the ultimate backdrop for morning coffee or sunset cocktails. Generous in-unit storage and private basement storage round out a home that is as functional as it is stunning. Space, light, and character in one of Boston's most vibrant neighborhoods. Steps to the beach, restaurants, and everything Southie has to offer.

This home has been viewed 12 times

Last Checked: June 18th, 2026 at 9:38am (Source: MLS PIN #73524499)

Air Conditioning

Waterview

Lead Paint Free

General Information for 133 I St # 3, Boston MA 02127

Listing ID73524499

Property TypeCondominium

Price1290000 ($727.99/SqFt)

Building Style2/3 Family

CityBoston

CountySuffolk

MLS AreaSouth Boston

Neighborhood(s)

Total Parking0

Unit Level3

Levels in Unit1

Year Built1900

Year Built SourcePublic Records

Year Built DetailsApproximate

Building Construction Status

ZoningCD

Unit Features for 133 I St # 3, Boston MA 02127

Approximate Living Area Total1772

Living Area Includes BasementNo

Rooms5

Bedrooms3

Primary En Suite BathroomYes

BasementFull

Cooling1, Split

LaundryArchway

Fireplaces

Outdoor SpaceNo

Flooring

Electric

Appliances

Condo Association Features for 133 I St # 3, Boston MA 02127

Pet PolicyAllowed

Building Management

Building Construction Status

Number of Units3

Year Built1900

Year Built DetailsApproximate

Year Built SourcePublic Records

WaterPublic

SewerPublic Sewer

Parking Features

Building AmenitiesBeach Rights

Disclosures for 133 I St # 3, Boston MA 02127

Lead PaintNone

UFFI

Living Area Includes BasementNo

Living Area Disclosure

Building Area SourcePublic Records

Special Listing Conditions

ExclusionsTree House

Compensation Based On

Documents Available

Financial Information for 133 I St # 3, Boston MA 02127

Association Fee

Optional Fee0

Association Fee IncludesLandscaping

Optional Fee Includes

Association Fee FrequencyMonthly

Assessed Value$1,118,800

Real Estate Tax12956

Tax Year2025

Location Information for 133 I St # 3, Boston MA 02127

Neighborhood(s)

MLS AreaSouth Boston

Area Amenities

Contact Information for 133 I St # 3, Boston MA 02127

Agent

Name: Aranson Maguire Group

Office

Name: Compass

Phone: 617-206-3333

Team Members

Name: Matthew Aranson

Payment Calculator

, Interest

Property Taxes 1079.67

Principal & Interest 7948.57

HOA Dues

Term

Interest

Home Price

Down Payment

Exclusive Listing Agent

Compass

Aranson Maguire Group

Agent Phone

Office Phone

(617) 206-3333

Text Agent Call Agent Call Office

Array
(
    [acres] => Approx. 0.04 acres (1,772 SqFt)
    [add_date] => 2026-05-27 18:33:34
    [address] => I St
    [agent] => Array
        (
            [address] => 
            [city] => 
            [id] => CN244630
            [name] => Aranson Maguire Group
            [national_association] => 
            [office] => AN2383
            [state] => 
            [zip] => 
        )

[apod_available] => Array
        (
        )

[appliances] => Array
        (
        )

[approx_living_area_total] => 1772
    [approx_lot_size_acres] => 0.04
    [approx_lot_size_sqft] => 1772
    [assessed_value] => $1,118,800
    [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
        (
            [0] => Beach Rights
        )

[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
        (
        )

[compensation_based_on] => Array
        (
        )

[complex_complete] => Array
        (
        )

[construction_materials] => Array
        (
        )

[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] => Perched on the top floor, this sun-drenched 3BR/2BA penthouse is the one you've been searching for. The living room sets the tone immediately — soaring ceilings with a skylight, an exposed brick wall with fireplace, and rich hardwood floors that run throughout. A true chef's kitchen anchors the space, complete with a pantry for effortless everyday living. Retreat to the expansive primary suite, where a custom built-in window seat and en-suite bath create a private sanctuary. Two additional queen-sized bedrooms offer flexibility for guests or a home office. Step outside to two private outdoor spaces, including a rooftop deck with sweeping water views — the ultimate backdrop for morning coffee or sunset cocktails. Generous in-unit storage and private basement storage round out a home that is as functional as it is stunning. Space, light, and character in one of Boston's most vibrant neighborhoods. Steps to the beach, restaurants, and everything Southie has to offer.
    [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] => Tree House
        )

[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] => 2026-06-18 09:38:37
    [laundry_features] => Array
        (
            [0] => Archway
        )

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

[lease_term] => Array
        (
        )

[levels_in_unit] => 1
    [living_area] => 
    [living_area_disclosure] => Array
        (
        )

[living_area_includes_basement] => Array
        (
            [0] => No
        )

[lot_features] => Array
        (
        )

[management_expense] => Array
        (
        )

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

[mls_area] => South Boston
    [mls_id] => 73524499
    [neighborhoods] => 
    [net_income_calc] => -12956
    [net_operating_income] => Array
        (
        )

[number_of_lots] => Array
        (
        )

[number_of_units] => 3
    [office] => Array
        (
            [id] => AN2383
            [name] => Compass
            [phone] => 617-206-3333
        )

[operating_expense] => Array
        (
        )

[optional_fee_includes] => Array
        (
        )

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

[owner_occupancy_source] => 
    [parking_features] => Array
        (
        )

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

[perc_test] => Array
        (
        )

[perc_test_date] => 
    [pet_policy] => Array
        (
            [0] => Allowed
        )

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

[price] => 1290000
    [price_per_sqft] => 727.99
    [price_per_unit] => 430000
    [private_pool] => 
    [property_sub_type] => Array
        (
            [0] => Condominium
        )

[real_estate_tax] => 12956
    [references_required] => Array
        (
        )

[rent_includes] => Array
        (
        )

[repair_maintenance_expense] => Array
        (
        )

[road_frontage_type] => Array
        (
        )

[roof_material] => Array
        (
        )

[rooms] => 5
    [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] => Active
        )

[street_number] => 133
    [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] => 1
    [tax_year] => 2025
    [team] => CT009690,CN244630
    [team_agents] => Array
        (
            [CT009690] => Array
                (
                    [agent_mls_id] => CT009690
                    [full_name] => Matthew Aranson
                    [address] => 18 Shepard Ave
                    [city] => Boston
                    [state] => MA
                    [postal_code] => 01907
                    [national_association_id] => 449586024
                    [office_mls_id] => AN2383
                )

[CN244630] => Array
                (
                    [agent_mls_id] => CN244630
                    [full_name] => Madeleine Jefferson
                    [address] => 300 Harrison Avenue Apt.708
                    [city] => Boston
                    [state] => MA
                    [postal_code] => 02118
                    [national_association_id] => 727013058
                    [office_mls_id] => AN2383
                )

)

[terms] => Array
        (
        )

[timber_acres] => 
    [title_5] => 
    [total_gross_expense] => 12956
    [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] => 3
    [unit_number] => 3
    [units_owner_occupied] => 
    [unparsed] => 133 I St # 3, Boston MA 02127
    [utilities] => Array
        (
        )

[view] => Array
        (
        )

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

[water_expense] => Array
        (
        )

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

[water_views_features] => Array
        (
        )

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

[year_built] => 1900
    [year_built_details] => Approximate
    [year_built_source] => Public Records
    [year_renovated] => 
    [zip] => 02127
    [zips] => 
    [zoning] => CD
    [zoning_details] => 
    [media] => Array
        (
            [0] => https://www.bostonrealestate.com/wp-content/uploads/WPL/777462/MLS1.jpg
            [1] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=2
            [2] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=3
            [3] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=4
            [4] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=5
            [5] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=6
            [6] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=7
            [7] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=8
            [8] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=9
            [9] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=10
            [10] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=11
            [11] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=12
            [12] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=13
            [13] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=14
            [14] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=15
            [15] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=16
            [16] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=17
            [17] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=18
            [18] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=19
            [19] => https://media.mlspin.com/photo.aspx?mls=73524499&w=1024&h=768&n=20
        )

[raw] => 
)

EXIT

18 More Photos