Building or Remodeling in Saratoga: Design Review, Hillside Rules and City Permits

Planning guide · updated October 2026

Saratoga is a small, wooded residential city below the ridges of the Santa Cruz Mountains, and it plans to stay that way. The City’s permit process reflects it. A new custom home, a second story or a large addition here usually goes through City design review before the Building Division takes the plans, and lots in the western hills add slope, ridgeline, geology and fire rules on top. This guide walks through how that works for new homes, whole-home remodels and additions, so the design, the schedule and the budget are built around the City’s process from the start.

Harrod Built builds new custom homes, takes on whole-home remodels and adds on to existing houses, from the Central Coast up through the South Bay and the Peninsula, Saratoga included. For a first conversation about your Saratoga property, call 805-712-8993 or send the form at the end of this page.

The short answer

Building permits in Saratoga come from the City’s Building Division, but new homes, second-story work and major additions first need design review from the Planning Division. Depending on the design, that review is a staff-level ministerial check against the City’s objective design standards, a staff-level discretionary review against the design review findings, or a Planning Commission hearing. Hillside lots also follow the hillside guidelines in the Residential Design Handbook, protected trees need an arborist review, and County Fire checks the water supply, driveway access and wildfire items. (we confirm per lot)

1. Who reviews what

In Saratoga, the City runs the process, with County Fire alongside

Saratoga is an incorporated city, so planning and building permits come from the City of Saratoga Community Development Department at City Hall on Fruitvale Avenue, not from the County. These are the offices and groups a Saratoga home project usually deals with:

Summarized from City of Saratoga Planning and Building pages, the Residential Development page and the demolition permit checklist, read October 31, 2026.

A Saratoga mailing address does not always mean the City. Some hillside homes nearby are in unincorporated Santa Clara County, which has its own planning rules, and parts of the area sit inside the City’s sphere of influence under the 2040 General Plan. We confirm the jurisdiction, zoning and utilities for each lot before design starts, and the City’s planning FAQ is a good first read on property details. (we confirm per lot) For what we build here, see our Saratoga page.

3. The three review paths

Ministerial, administrative or Planning Commission

Saratoga sorts single-family design review into three paths. Which one applies depends mostly on whether the design meets the City’s objective design standards word for word or asks for flexibility.

Simplified from the City of Saratoga Residential Development page, the Objective Design Standards checklist and the Planning Commission design review handout, read October 31, 2026.

The Planning Commission design review handout explains what a Commission hearing involves: a planner is assigned and visits the site, the application is checked for completeness and code, nearby owners get a notice of public hearing, and story poles showing the planned rooflines and footprint must be installed and approved before the hearing is scheduled. The poles stay up until the appeal period ends. The Planning Commission members visit the site before the hearing and can approve, deny or continue the project. Before any path, the City asks applicants to share plans with the neighbors using a courtesy neighbor notification form, which helps avoid surprises later. The design review submittal checklist lists the full package: title report, surveys, grading and drainage plan, tree protection plan, stormwater forms, the WUI checklist where it applies, a materials and color board and photos of the existing house.

5. Design review findings and the Handbook

How Saratoga judges a design that needs discretion

For Path 2 and Path 3, the City has to be able to make its design review findings, which the Residential Design Handbook illustrates page by page. Adopted by the City Council in February 2014, the Handbook guides homeowners, architects and builders on new homes and remodels that fit the neighborhood. The findings, in plain terms:

• Site work follows the natural contours, keeps grading low and suits the lot’s constraints.
• Protected trees are preserved, and removals are kept to a minimum.
• The height, siting and architecture avoid unreasonable impacts on neighbors’ privacy and on community views.
• The mass and height are in scale with the house itself and with the neighborhood.
• Front-yard landscaping keeps paving down and fits the streetscape.
• The project doesn’t unreasonably block neighbors’ solar access.
• The design is consistent with the Handbook.
• On hillside lots, the house avoids unreasonable impacts on ridgelines, significant hillside features and community views.

The Handbook is clear that it is not meant to freeze a neighborhood or force one style. Its sections cover neighborhood context, mass, height, the streetscape, two-story homes, setbacks, privacy, porches and entries, garages, roofs and eaves, windows, materials, landscaping, pervious paving, grading and drainage, and water-efficient landscaping. On a remodel, the privacy and two-story sections usually matter most: window placement, balcony locations and second-floor mass are where neighbor concerns tend to land.

7. Trees

Protected trees, arborist reports and tree protection plans

Saratoga protects a lot of trees. Under the City’s tree regulations page, every tree above a modest trunk size is protected regardless of species, a list of native trees is protected at a smaller size (oaks, coast redwood, Douglas fir, bigleaf maple, California buckeye and tanoak among them), and street trees, heritage trees and required replacement trees are protected at any size.

For development, every design review plan set includes the City’s Tree Protection Plan / Disclosure Statement, and so does any building permit that involves excavation, grading, foundations, retaining walls or trenching. Where work comes near a protected tree’s canopy, including trees on the neighbor’s side, the City requires an arborist report and a City Arborist review. Work near a tree’s root zone that doesn’t otherwise need a permit still needs a tree encroachment permit.

Taking out a protected tree needs a City permit, a site inspection by the City Arborist and usually a neighbor notice with an appeal window. In March 2026 the City updated its rules for wildfire safety: a tree whose trunk sits right next to a house can be removed without neighbor notice if the owner keeps an ember-resistant zone around the home and records a maintenance agreement, though a permit and a replacement tree are still required. On wooded lots the trees often decide where the house, the driveway and the utility trenches can go, so we get the tree survey done before anyone draws a floor plan.

9. Fire

Santa Clara County Fire Department review and the WUI

The City notes on its Fire Prevention page that Saratoga has areas mapped by CAL FIRE as very high fire hazard severity zones, and its wildland-urban interface (WUI) covers most of the western hillsides, extending a little past the state maps. The WUI boundary was redrawn after the state’s 2025 fire hazard maps. The State Fire Marshal’s fire hazard severity zone maps cover the state zones and the City’s GIS map shows the WUI.

The Santa Clara County Fire Department serves Saratoga, and design review applications are routed to it for comment. The City’s Fire Protection Information checklist and Building in a Fire Zone or the WUI page list what the plans need to show to avoid delays:

• The water supply, with a fire-flow letter from the water company, and the location of nearby hydrants.
• Driveway and access road width, grade, surface, vertical clearance and turning radii, with turnouts and a fire truck turnaround on long driveways and dead-end roads.
• Gate dimensions and Knox key access.
• Fire sprinkler and alarm systems, listed as deferred submittals.
• In a fire hazard zone or the WUI, a fire protection plan and a vegetation management plan with defensible space zones, plus state fire-safe access and clearance rules.

Homes in the WUI are also built to the state’s wildfire building code. The City’s WUI fire conformance checklist tracks the items: a Class A roof, ember- and flame-resistant vents, ignition-resistant or noncombustible exterior walls, compliant glazing, exterior and garage doors, and protected decks. County Fire’s plan submittal page covers sprinkler and other fire submittals; the department does not hold pre-submittal meetings, but offers sit-down meetings with the plan reviewer once comments are out. Our guide to building in a fire hazard severity zone goes through those code items in more detail.

11. Remodels and additions

Working with the house you already have

An addition or a whole-house remodel runs through the same City review, but the triggers are specific to existing homes:

• Second stories trigger design review, and the street-facing second floor has to step back or sit inside the roof to stay on Path 1.
• Large additions and footprint changes trigger design review even on one level.
• Floor area is counted for the whole property, with slope reductions on hillside lots, so an addition can hit the limit sooner than the lot size suggests.
• Demolition line: how much exterior wall, roof and interior wall comes off decides whether the remodel is reviewed as a new house.
• Trees: additions and new trenches near a protected tree need a tree protection plan and often an arborist report.
• Heritage homes on the inventory add the heritage review.
• WUI homes: new exterior work follows the wildfire building code.

Interior-only remodels without new floor area or exterior changes usually go straight to the Building Division. Our pages on whole-home remodels and home additions explain how we run that kind of job.

13. Before you design

Questions to answer about your Saratoga property

1. Is the lot inside the City of Saratoga, or in unincorporated Santa Clara County?
2. What is its zoning: R-1, Hillside Residential, agricultural or open space?
3. What is the net site area, and how much does the average slope reduce the floor area?
4. Is the lot near a mapped ridgeline, or in a landslide or liquefaction area?
5. Which protected trees, on the lot or overhanging from next door, sit close to where you want to build?
6. Is the house on the Heritage Resource Inventory or a designated landmark?
7. Can the design meet every objective design standard, or will it need discretionary review?
8. For a remodel, how much exterior wall, roof and interior wall can stay?
9. Does the lot fall inside the WUI or a state fire hazard zone, and can a fire engine get up the driveway and turn around?
10. Who provides water and sewer, and is any part of the property on septic?
11. Are there CC&Rs or a homeowners association with its own review?
12. Who on your team will coordinate the surveyor, arborist, engineers, neighbors and the City from application to final?

If you already have an architect, we estimate and build their design. If you don’t, our sister studio Harrod Drafting & Design can take the house from concept through the permit drawings.