Preservation, Inc.
East End Survey · 2026
809 E Jefferson St
Map 2 of 15 · Working record

809 E Jefferson St

Review needed: Confirm the address before ICRIS entry: the county parcel layer identifies 809 E Jefferson Street, while the printed Map 2 label near this position is 813.6 photographs
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01 · Resource Details

Resource Names
809 E Jefferson St
Smithsonian No.
Not established
IHSI No.
Not established
Property Type
Building
Agency Id
Not established
Field Id
Not established
Temporal Designation
Not established
Ownership
Not established
Restricted
Not established
Overall Eligibility
Not established
District Eligibility Contribution
Contributing

Description

Siting and Setting Description: The property lies within a residential block in Boise's East End, following the neighborhood's angled street grid. It fronts E Jefferson St and occupies an approximately level lot with concrete sidewalks, a planted setback, mature trees, and alley service access. The documented neighborhood development era and construction date are not established in the supplied record. Main Building Description: The photographed resource is a one-story building on a mid-block lot. Its principal façade faces north, fronting E Jefferson St. The one-story residence has a broad, low side-gabled body with a shallow projecting front room and a recessed entrance beneath the main roof. Horizontal lap siding covers the visible walls. Large rectangular front windows flank a glazed entry, and a low masonry landscape wall defines part of the front approach. At the rear stands a recently finished two-story accessory building with a shed-dormer-like upper volume, vertical panel siding above shingle-pattern lower cladding, and vehicular doors facing the alley. Character-Defining Features: – Low one-story bungalow massing. – Side-gabled asphalt-shingle roof. – Shallow projecting front room and recessed entry. – Large front window groups. – Substantial detached two-story rear accessory building. Summary of Known or Observed Alterations: – Unknown date: The front projection appears enclosed or rebuilt; its date is unknown. – Unknown date: The rear accessory building appears substantially newer than the house. – Unknown date: Some exterior openings and cladding may be replacements. Accessory Building Description: – (1) main house; preliminary recommendation: contributing, subject to address and construction-date confirmation – (1) detached two-story garage or accessory dwelling at the rear; contribution pending chronology

History

02 · NRHP Evaluation

Individual Eligibility
Not established
Multiple Property Listing
Not established
A: Event
Not established
B: Person
Not established
C: Design and Construction
Not established
D: Informational Potential
Not established
Area of Significance
Not established
Sub-area of Significance
Not established

Justification of Significance and Integrity

Statement of Significance: The construction date is unknown. The main house retains the low roof, horizontal massing, front-entry composition, and setback associated with a modest bungalow type. Those features support a preliminary Criterion C district contribution despite apparent changes to the front projection. The large rear building is visually and chronologically distinct and should not inherit the house's recommendation. Contributing Determination: This is a preliminary contributing recommendation. The recommendation applies only to the main building unless an accessory resource is expressly evaluated. Confirm the construction date, applicable district boundary, and period of significance before finalizing the ICRIS field. Evaluation of Integrity under Criterion C: – Location: The resource remains on the mapped parcel and maintains its relationship to the street and alley. Historic location has not been independently documented. – Design: The visible massing, roof form, openings, and entrance treatment continue to convey the identified vernacular bungalow. Any unresolved feature is named above. – Setting: The sidewalk, planted setback, mature canopy, nearby dwellings, and alley service pattern preserve a coherent residential setting. Recent work on adjoining parcels is noted where visible. – Materials: The photographs support the present material identifications of horizontal lap siding; substrate not evident and asphalt shingles. They do not establish which components are original. – Workmanship: Visible trim, porch elements, roof-edge details, and wall treatments retain evidence of the building's exterior design; concealed or replaced work is not assumed. – Feeling: The building's scale, setback, roof form, and street presence continue to express an older residential character except where the record remains pending. – Association: Under the proposed Criterion C basis, the relevant association is with the vernacular bungalow type expressed by the surviving form and detail. No architect, builder, event, or person association is established.

03 · Property, Construction & Use

Address
809 E Jefferson St
City
Boise
Vicinity
Not established
Subdivision Name
East Side Addition
Primary Construction Type
Not established
Primary Activity Date
Not established
Primary Circa
Not established
Secondary Construction Type
Not established
Secondary Activity Date
Not established
Secondary Circa
Not established
Feature Count
2
Original Function or Use
Not established
Original Sub-Use
Not established
Current Function or Use
Domestic
Current Sub-Use
Single dwelling
Resource center coordinates
Not established
Mapped resource shape
Not established
District record / boundary
Not established

Feature Description

– (1) main house; preliminary recommendation: contributing, subject to address and construction-date confirmation – (1) detached two-story garage or accessory dwelling at the rear; contribution pending chronology

04 · Materials & Architecture

Foundation Material
concrete or masonry; mostly concealed
Wall Material
horizontal lap siding; substrate not evident
Secondary Wall Material
shingle-pattern siding on rear accessory building
Window Material
not evident
Roof Material
asphalt shingles
Other Material
concrete walk; low masonry landscape wall
Architect / Builder
Not established
Architectural Style
vernacular bungalow
Plan
irregular

05 · Photos · 6