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Staff Report with Attachments 1 through 6.328 Bachman Avenue PREPARED BY: Maria Chavarin Assistant Planner 110 E. Main Street Los Gatos, CA 95030 ● 408-354-6874 www.losgatosca.gov TOWN OF LOS GATOS HISTORIC PRESERVATION COMMITTEE REPORT MEETING DATE: 1/22/2024 ITEM NO: 3 DATE: January 17, 2025 TO: Historic Preservation Committee FROM: Joel Paulson, Community Development Director SUBJECT: Consider a Request for Approval to Construct a Second-Story Addition Exceeding 100 Square Feet and Exterior Alterations to an Existing Contributing Single-Family Residence in the Almond Grove Historic District on Property Zoned R-1D:LHP. Located at 328 Bachman Avenue. APN 510-14- 037. Minor Residential Development Application MR-24-016. Exempt Pursuant to CEQA Guidelines, Section 15301: Existing Facilities. Property Owner: Snighdha Uday Dharmavaram. Applicant: Bess Wiersema. Project Planner: Maria Chavarin. RECOMMENDATION: Consider a request for approval to construct a second-story addition exceeding 100 square feet and exterior alterations to an existing contributing single-family residence in the Almond Grove Historic District on property zoned R-1D:LHP located at 328 Bachman Avenue. PROPERTY DETAILS: 1. Date primary structure was built: 1900 per County Assessor’s Database; 1885 per researched records 2. Town of Los Gatos Historic Status Code: N, probably built since 1950 3. Does property have an LHP Overlay? Yes 4. Is structure in a historic district? Yes, Almond Grove Historic District 5. If yes, is it a contributor? No 6. Findings required? No 7. Considerations required? Yes BACKGROUND: The Santa Clara County Assessor’s Database indicates that the residence located at 328 Bachman Avenue was constructed in 1900, a date often used by the Assessor when the exact PAGE 2 OF 4 SUBJECT: 328 Bachman Avenue/MR-24-016 DATE: January 17, 2025 N:\DEV\HISTORIC PRESERVATION\HPC Reports and Attachments\2025\01-22-25\Item 3 - 328 Bachman Ave\Staff Report.328 Bachman Avenue.docx construction date is not known. The 1990 Anne Bloomfield Survey provides an estimated construction date of the 1980’s and provides a rating of new, probably built since 1950 (Attachment 1). The researched records estimate the construction date as the 1885’s (Attachment 2). The Sanborn Fire Insurance Maps include the property beginning in 1928 and show the residence as having consistent footprint through 1956 (Attachment 3). The list of permits found in the Town records reflect permits issued since the late 1940’s clearly indicating that the residence existed prior to the 1980’s (Attachment 4). The following alterations are reflected in the Town’s permit records included as Attachment 4: • 1949 – Electrical Permit; • 1960 – Plumbing Permit; • 1972 – Plumbing Permit; • 1978 – Building Permit for repairs, scope not legible; • 1998 – Plumbing Permit for water heater; • 2012 – Building Permits for re-roof; • 2014 – Plumbing Permit to replace water heater in the same location; and • 2015 – Plumbing Permit for re-piping. The applicant provided a summary of the property research (Attachment 2) as well as photographs of the property (Attachment 6). DISCUSSION: A Minor Residential Development Application was submitted to the Town on November 5, 2024, proposing construction of a second-story addition exceeding 100 square feet and exterior alterations to the existing contributing single-family residence. As provided in Attachment 6, the project includes a second-story addition of 132 square feet on the rear elevation and demolition of a portion of the first floor at the rear elevation, which the applicant indicates is not historic given the contemporary materials of the siding (T1-11 panels) and windows (aluminum). The project also includes an addition on the first floor within the footprint of the area to be demolished and a new wood deck on the rear elevation. . The proposed exterior materials include a composition roof, wood scalloped siding, horizontal wood ship-lap siding, wood trim, a wood deck and railing, and a wrought iron railing at the new lightwell (Attachment 6). Five new wood windows are proposed on the first floor along with two sets of French doors opening up to the deck on the rear elevation. Two new vinyl windows are proposed on the second floor on the rear elevation to match two existing vinyl windows on the front elevation. All new exterior materials would match existing materials. The Residential Design Guidelines provides the following recommendations related to materials: PAGE 3 OF 4 SUBJECT: 328 Bachman Avenue/MR-24-016 DATE: January 17, 2025 N:\DEV\HISTORIC PRESERVATION\HPC Reports and Attachments\2025\01-22-25\Item 3 - 328 Bachman Ave\Staff Report.328 Bachman Avenue.docx 3.7.3 Match window materials to the architectural style and to the surrounding neighborhood • Wood windows are common in Los Gatos. Wood is still the desired choice for styles that traditionally used wood. However, today there are some window materials, such as vinyl clad wood windows that are not noticeably different from wood at a short distance. 4.8.4 Windows and Glass in doors • Windows should be constructed of real glass, and window frames should be constructed of real wood - not vinyl, metal, or plastic. Wood sashes may be vinyl or metal clad if the window frame and dressing is designed consistent with the historic context of the building. CONSIDERATIONS: A. Considerations Sec. 29.80.290. Standards for review. In evaluating applications, the deciding body shall consider the architectural style, design, arrangement, texture, materials and color, and any other pertinent factors. Applications shall not be granted unless: X In historic districts, the proposed work will neither adversely affect the exterior architectural characteristics or other features of the property which is the subject of the application, nor adversely affect its relationship, in terms of harmony and appropriateness, with its surroundings, including neighboring structures, nor adversely affect the character, or the historical, architectural or aesthetic interest or value of the district. B. Residential Design Guidelines Section 3.9 and 4.8.4 of the Residential Design Guidelines offers recommendations for construction of additions to an existing residences and window materials (Attachment 5). CONCLUSION: The applicant is requesting approval to construct a second-story addition exceeding 100 square feet and exterior alterations to an existing contributing single-family residence in the Almond Grove Historic District on property zoned R-1D:LHP. Should the Committee find merit in the request, a recommendation of approval would be forwarded to the Community Development Director and the application would continue through the Minor Residential Development process. The proposed work would be completed with a Building Permit and would not return to the Committee. PAGE 4 OF 4 SUBJECT: 328 Bachman Avenue/MR-24-016 DATE: January 17, 2025 N:\DEV\HISTORIC PRESERVATION\HPC Reports and Attachments\2025\01-22-25\Item 3 - 328 Bachman Ave\Staff Report.328 Bachman Avenue.docx ATTACHMENTS: 1. 1990 Anne Bloomfield Survey 2. Applicant’s Research Results 3. Sanborn Fire Insurance Maps 4. Town Building Permit Records 5. Residential Design Guidelines, Sections 3.9 and 4.8.4 6. Development Plans ATTACHMENT 1 This Page Intentionally Left Blank 328 Bachman Ave, Los Gatos, CA, 95030 11/13/2024 To the Historical Preservation Committee of Los Gatos, Subject: Historical Documentation and Planned Renovations for 328 Bachman Ave Dear Members, We are writing to document the history of 328 Bachman Ave, Los Gatos, CA, 95030 and to outline our plans for renovations that respect its historical significance while adapting it for modern living, Historical Timeline 1884-1885: Built by Fen Massol Constructed by Fen Massol, the house reflects a simple Victorian style. At the time, it was surrounded by almond orchards, which Fen's father, Florian Massol, cultivated after retiring from tt,e wholesale hardware business. 1893-1909: Owned by Frank Watkins Frank Watkins. a pharmacist and local leader. converted the attic into bedrooms in 1902 and installed a small telephone exchange in a back office of the pharmacy he ran, playing a pivotal role in early communication for the town of Los Gatos. 1945 Onward: Owned by the McClure Family The McCllJres made significant updates, including adding living room windows, enlarging doorways, and constructing a side porch, which softened and brightened the home's atmosphere. 1971 Onward: Owned by the Anderson Family The Andersons focused on restoration, polishing original hardwood floors, refinishing intricate brass hinges, and remodeling rooms to add features llke a bay window. They also installed modern heating and added a white picket fence and arbor gateway to the property. Planned Renovations As the current stewards of this historic home, we deeply appreciate its unique character and the stories embedded in its walls. However, as much as we love its Victorian charm, some features are less enchanting-drafts masquerading as ventilation and plumbing that seems to have a personality all its own. Our plans aim to strike a balance between honoring the past and making the house practical for the future: •Functionality Updates: Insulation. plumbing, and heating systems will be updated with a light touch, ensuring the home stays cozy in winter without losing its old-world charm. •Living Space Improvements: Some interior spaces including kitchen and a bedroom in the back will be thoughtfully adapted to accommodate family life in the 21st century. Rest assured, these ATTACHMENT 2 This Page Intentionally Left Blank 1928-1944328 Bachman Ave. ATTACHMENT 2 1928-1956328 Bachman Ave. ATTACHMENT 4 Permit #AppType Addr#Street Suffix APN Project Description Current Status P98-00047 Residential - Misc 328 BACHMAN AVE 51014037 PLUM WATER HEATER Finaled P15-069 Residential - Copper Re-pipe 328 BACHMAN AVE 51014037 COPPER REPIPE Expired P14-198 Residential - Water Heater 328 BACHMAN AVE 51014037 REPLACE WATER HEATER, SAME SIZE & LOCATION.Finaled B12-0196 Residential - Reroof 328 BACHMAN AVE 51014037 T/O (E) ONE LAYER OF COMP AND ONE LAYER OF WOOD R/R W/COMP 700 SF Finaled B12-0195 Residential - Reroof 328 BACHMAN AVE 51014037 T/O (E) ONE LAYER OF COMP AND ONE LAYER OF WOOD R/R W/COMP 2000 SF Finaled Residential Design Guidelines 33 Town of Los Gatos BUILDING DESIGN3 3.8.3 Use traditional detailing •Treat openings in walls as though they were constructed of the traditional material for the style. For example, be sure to provide substantial wall space above arches in stucco and stone walls. Traditionally, wall space above the arch would have been necessary to structurally span the opening, and to make the space too small is inconsistent with the archi- tectural style. •Openings in walls faced with stone, real or synthetic, should have defined lintels above the opening except in Mission or Spanish Eclectic styles. Lintels may be stone, brick or wood as suits the style of the house. •Treat synthetic materials as though they were authentic. For example, select synthetic stone patterns that place the individual stones in a horizontal plane as they would have been in a load bearing masonry wall. •Select roof materials that are consistent with the traditional architectural style (e.g., avoid concrete roof tiles on a Crafts- man Style house.) 3.8.4 Materials changes •Make materials and color changes at inside corners rather than outside corners to avoid a pasted on look. 3.9 ADDITIONS/ACCESSORY BUILDINGS/SECONDARY UNITS •Site additions in the least conspicuous place. In many cases this is a rear or side elevation - only rarely is it a rooftop. •The existing built forms, components and materials should be reinforced. Heights and proportions of additions and alterations should be consistent with and continue the original architectural style and design. •Additions should be subordinate, and compatible in scale and proportion to the historically significant portions of the existing structure. •When an addition or remodel requires the use of newly constructed exterior elements, they should be identical in size, dimension, shape and location as the original, and Use stone or wood lintels over openings in stone walls Additions, accessory buildings and secondary units should match the form, architectural style, and details of the original house ATTACHMENT 5 Residential Design Guidelines34 Town of Los Gatos BUILDING DESIGN3 should utilize the same materials as the existing protected exterior elements. • When an addition necessitates the removal of architectural materials, such as siding, windows, doors, and decorative elements, they should be carefully removed and reused in the addition where possible. • The introduction of window and door openings not char- acteristic in proportion, scale, or style with the original architecture is strongly discouraged (e.g., sliding windows or doors in a structure characterized by double hung windows and swinging doors). • The character of any addition or alteration should be in keeping with and subordinate to the integrity of the original structure. • The amount of foundation exposed on the addition should match that of the original building. • Do not add roof top additions where the roof is of historic significance. • Second floor additions are discouraged in neighborhoods with largely one story homes. If horizontal expansion of the house is not possible, consider incorporating a second floor addition within the roof form as shown in the example to the left. • Second floor additions which are not embedded within the roof form should be located to the rear of the structure. • The height and proportion of an addition or a second story should not dominate the original structure. • Deck additions should be placed to the rear of the struc- ture only, and should be subordinate in terms of scale and detailing. • New outbuildings, such as garages, should be clearly subor- dinate to the main structure in massing, and should utilize forms, materials and details which are similar to the main structure. • Garages should generally be located to the rear of the lot behind the rear wall of the residence. One car wide access driveways should be utilized. Original structure Addition incorporated into the roof successfully adds space while respecting the integrity of the existing house and the scale of the neighborhood Placing a two story addition to the rear can minimize its impact on the historic resource and the scale of the neighborhood Residential Design Guidelines48 Town of Los Gatos HISTORIC RESOURCES4 • New materials should identically match original materials in shape, size, dimension, texture and pattern. Metal used as flashing, screening, gutters, and utility services and other traditional elements are acceptable. • Composite, synthetic, metal, vinyl, plastic or fabricated/ imitation wood products, painted brick or imitation used brick will generally not be approved. However, some ex- ceptions may be made on a case-by-case basis when the decision making body determines that the replacement is consistent with the appearance of the original material, and that a lay person would be unlikely to discern the difference. The burden of proof will reside with the applicant. Mate- rial samples, photographs and specific locations where the material may be seen in use will all assist in the evaluation of alternative materials. • The decision making body may approve an acceptable alter- native to the original building material if use of the original material is not feasible due to unreasonable cost and com- mercial availability, or health and safety considerations. 4.8.3 Doors • Original doors should be retained and restored. • New replacement doors for Victorians should not be flush, but of raised or flat panel design. • Front doors generally should be painted, not stained. Not applicable to Mission Revival/Mediterranean style structures. • Screened doors should be real wood framed of simple de- sign unless patterns can be shown to fit the existing style. 4.8.4 Windows and Glass in doors • Original windows, glass and window decorations should be retained and restored. • Replacement of only the deteriorated portions of the win- dows is recommended rather than the replacement of the entire window. • New or replacement windows should be wood-sashed and muntined if applicable. • Sills, lintels, frames, sashes, muntins, and all decorations should be identically replaced. • All elements of new windows should be identical in size, shape, proportion, and dimensions as the original windows of the building, or consistent with traditional sizes, propor- tions and dimensions of buildings of the same architectural style, design and era. • Windows should be constructed of real glass, and window Simulated divided lite windows may be considered on a case-by-case basis True divided lite windows are encouraged when appropriate to the original structure Original doors and windows should be retained and repaired Residential Design Guidelines 49 Town of Los Gatos HISTORIC RESOURCES4 frames should be constructed of real wood - not vinyl, metal or plastic. Wood sashes may be vinyl or metal clad if the window frame and dressing is designed consistent with the historic context of the building. • All lites (panes of glass) should be true divided lite, not artificial or snap-in grids. Simulated Divided Lite windows are permitted when the details of the window provide projecting muntin elements on the exterior and interior of the window along with a spacer muntin between the panes of glass (See example to the left). • New arched, angled, and/or octagonal windows are discour- aged. • Large expanses of blank exterior walls without windows are discouraged. 4.8.5 Bay Windows • Size, shape, proportion, dimension, type of foundation, and, roof material and style of bay windows, whether restored or of new construction, should be identical to the original or existing bay windows of the structure. • New bay windows may be added to the building in loca- tions where no bay windows previously existed. These new bay windows should be identical to and replicate the style, design, size, shape and proportion, type of foundation and roof of other bay windows existing on structure. If there are no existing bay windows on the structure, new bay windows should be built in the same size, shape, dimension, propor- tions, material and type of foundation and roof typical of the architectural style. Metal frame kitchen garden windows are prohibited. • Generally, traditional architectural styles will require either a foundation to the ground or substantial supporting brackets below a bay window. Floating windows without support, as shown for the bow bay window example to the right, are rarely appropriate. • New bay windows are permitted only when the applicant proves to the Deciding Body that they are consistent with existing style, design and character of the structure. 4.8.6 Chimneys • Wood-framed chimneys are prohibited unless their exteri- ors are covered with brick or river rock veneers. Masonry veneers may be used. However, they should be detailed exactly as the solid construction that they are emulating. • Stucco Mission Revival or Mediterranean style houses may have stucco covered chimneys. Match bay windows to the architectural style of the house Some window styles, such as this bow bay window, would have very limited applicability for use on a historic resource structure Wood clad chimneys are prohibited Masonry and stucco chimneys are preferred