Tearing down and rebuilding a house in Palo Alto (2026): steps, permits, timeline and cost

Step 1: Feasibility and lot check

Before paying for design, confirm what the lot can legally hold. Most single-family lots in Palo Alto are zoned R-1. The base R-1 standards are a 6,000 sq ft minimum lot, a contextual front setback, a 20 ft rear setback, 6 ft interior side setbacks (8 ft in the larger-lot subdistricts) and a 16 ft street-side setback ^[4]. Floor area is capped at 0.45 of the first 5,000 sq ft of lot area plus 0.30 of the remainder, with an absolute maximum house size of 6,000 sq ft that includes an attached garage ^[4]. Height is 30 ft to the roof peak (33 ft for roofs pitched 12:12 or steeper), and a two-story house may cover at most 35% of the lot ^[4]. Side and rear daylight planes then shape the upper floor ^[4].

Three things change the answer for a specific address. A Single-Story Overlay (S) district limits the house to 17 ft and one habitable floor ^[4]. A Special Flood Hazard Area raises the allowed height slightly but rules out a basement ^[4],[5]. And protected trees on your lot, or on a neighbor's lot within 30 ft of the planned footprint, have to be disclosed and can fix where the house sits ^[9]. A feasibility check should cover all three before any drawings are made.

Step 2: Design and Individual Review

A new two-story home in the R-1 zone needs Individual Review (IR); a new one-story home does not ^[6]. IR checks five guidelines: site planning of the driveway, garage and house; neighborhood compatibility of height, mass and scale; the resolution of form, massing and roof lines; the street-facing facade and entry; and the placement of second-story windows and decks for privacy ^[6]. The city states that consistency with every guideline is required for approval ^[6].

The process is set by PAMC 18.77.075. Within three days of submittal, adjacent owners and residents are notified by mail and a notice is posted on the property; a 21-day comment period follows ^[7]. The director then issues a proposed decision, which becomes final 14 days after notice unless the applicant or an adjacent neighbor requests a hearing, and a hearing decision can be appealed to City Council ^[7]. Here adjacent means properties sharing a boundary, the property directly across the street and the next ones diagonally across ^[7]. An approval expires after 12 months if construction has not started, with one possible 12-month extension ^[7]. In the FY2027 fee schedule the IR fee for a new two-story home is $16,575, and an optional preliminary IR meeting with the architect is $1,193 ^[10].

This is also the stage to settle the floor plan around how the family actually lives. Many buyers want a ground-floor bedroom suite for parents, a second primary suite, or a basement for a media room, gym or guest quarters. A habitable basement is not counted as floor area when the first floor sits no more than 3 ft above the surrounding grade, and lightwells must stay out of the front, within 3 ft in width and within 30% of the basement perimeter ^[5]. That is often how a large program fits under the 6,000 sq ft cap ^[4],[5].

Step 3: The deconstruction requirement

Since July 1, 2020, Palo Alto no longer allows demolition of a whole structure. Building permit applications submitted on or after that date must deconstruct, meaning careful disassembly to maximize reuse and recycling, and a separate building permit is required to remove the structure ^[1],[2]. The sequence is fixed. Before applying for the building permit you need a salvage survey from a city-approved reuse organization (the city currently lists The ReUSE People) ^[1],[2]. After the permit is issued, the house is taken apart and materials are separated for reuse and recycling, using GreenWaste of Palo Alto for any bins on site ^[1],[2]. Before final inspection, the contractor uploads proof to Green Halo that the surveyed items were salvaged, plus the weights of everything else ^[1],[2].

The city warns that deconstruction and source separation take longer than traditional demolition, so it belongs in the schedule from day one ^[2]. Palo Alto has required at least 80% diversion of construction and demolition debris since 2017, and the ordinance excludes detached garages, storage buildings and ADUs ^[3]. The deconstruction intake fee is $1,122 per permit, not counting construction and demolition fees ^[10].

Step 4: Building permit and plan check

Applications start online with a completeness check, and the city says the first response usually comes within 2 to 3 business days ^[14]. Plan check then involves several departments. Public Works requires a grading and drainage plan for every new single-family house, an impervious area worksheet when 500 sq ft or more of hard surface is created or replaced, and a separate street work permit for anything in the public right-of-way ^[12]. Urban Forestry reviews the tree sheets (see Step 5). In a flood zone, Public Works screens the project first and the lowest floor elevation must be certified by a surveyor or civil engineer ^[12].

How impact fees apply when an existing house is replaced, rather than built on a vacant lot, depends on the city's calculation for your project, so confirm it with Planning before budgeting ^[11]. Trade permits, utility connection charges and school fees are separate and are not listed here.

Step 5: Tree protection

Under PAMC 8.10, protected trees include Coast Live, Blue, California Black and Valley oaks, Bigleaf Maple and Incense Cedar at 11.5 in diameter or more, Coast Redwood at 18 in or more, and any other tree at 15 in or more except invasive and high-water-use species, all measured 54 in above natural grade; street trees and council-designated heritage trees are protected too ^[8],[9]. Removing one needs a Protected Tree Removal Permit ^[8],[9].

• A certified arborist completes the Tree Disclosure Statement, which is required with every demolition or grading permit application ^[9].
• The Tree Protection Zone is a radius of 10 times the trunk diameter. Work inside it needs a Tree Preservation Report, and any digging there is done by air-spade or hand ^[9].
• Street trees within 30 ft of the work need fenced protection and a verification inspection before any work starts. Urban Forestry can impose the same fencing inspection for other protected trees, plus a project arborist and monthly arborist reports, with fencing kept until its final inspection ^[9].
• Trees of 4 in diameter and larger are replaced to avoid net canopy loss; where that cannot happen on site, the 2026 in-lieu fee is $1,250 per 24-inch box tree ^[8],[9].

Step 6: Construction, basements and groundwater

Construction follows the approved plans. Sidewalks and streets cannot be used to store materials, dumpsters or portable toilets ^[12]. Basements need the most planning. Basements are not permitted in Special Flood Hazard Areas, and may not extend beyond the building footprint or under parts of the house that sit in required setbacks ^[5]. Where excavation reaches groundwater, PAMC 16.28.155 applies. Pumping that discharges to the storm drain or sewer is limited to April 1 through October 31, residential pumping is capped at 10 weeks plus a 2-week start-up period, and the applicant must provide a hydrogeological study, a condition survey of neighboring structures and a fill station ^[13]. Cut-off wall methods such as secant walls are allowed if discharge stays at or below 30 gallons per minute ^[13]. The FY2027 storm-drain discharge permit for this kind of dewatering is $19,936 plus $428 per week ^[10].

For homeowners this means a basement dug in the wrong month can stall the whole job until spring. Public Works guidance has also long said that on the bay side of Foothill Expressway, perforated drain pipes around basement walls or under the slab are not allowed, so waterproofing has to be designed, and the city recommends hiring a waterproofing consultant ^[12].

Step 7: Inspections and final sign-off

Final building sign-off depends on several departments, not just the building inspector. Green Halo deconstruction records must be uploaded before final inspection ^[1]. Urban Forestry runs a landscape (MWELO) inspection before building final, and tree protection fencing stays until its final inspection ^[9]. In a flood zone, interim and final FEMA elevation certificates are required, and building inspections stop until Public Works approves the interim one ^[12]. Missing any of these is a common reason move-in slips.

Timeline at a glance

What it costs: public ranges

No city publishes construction costs, so the figures below come from builders and design-build firms that publish their own Palo Alto and Menlo Park numbers. They disagree, and the spread shows how much finish level, basements and site conditions move the price. Treat them as ranges, not a quote.

One published example puts a 2,800 sq ft mid-range custom home at about $1.4M in hard construction cost, before land ^[15]. Another works through a 3,000 sq ft home at $750 per sq ft, or $2.25M in construction and about $2.5M to $3M all-in ^[17]. A basement, a deep foundation or a dewatering season adds to these, and none of the sources prices them separately.

All figures, fees and rules above are ranges and summaries from the public sources listed below, checked on October 2, 2026. Fees change every fiscal year and codes are amended, and every address is different: zoning overlays, flood zones, trees and groundwater can change the answer for your lot. Book Blue Lion Builder's free feasibility assessment to get a lot-specific read before you commit to design.