Sort them into three piles. Things a buyer’s lender or insurer will refuse to work around. Things an inspection report will raise and a buyer will price. Things that are simply old. Only the first pile has to be handled before listing, and it is a short pile — active dry rot and live termite damage usually sit in it, and knob-and-tube wiring often does because of insurance. Plaster, original windows and an old-but-sound roof usually do not: houses built before 1960 closed at a median 104.7% of their first asking price in eight days, against 103.4% for the town. Which pile a specific item lands in is decided by the report, not by the material.

Three piles

Pile one — it blocks a transaction. A lender’s appraiser, a buyer’s insurer, or a condition so active that a buyer cannot price it. Very few items land here, and the ones that do are worth handling before the house lists because the alternative is handling them in escrow, under time pressure, with less leverage.

Pile two — it will be raised and priced. Most condition items. They appear in the inspection report, the buyer discounts for them, and the only real decision is whether you would rather spend the money or the negotiating room. That is an arithmetic question and the answer is different on every house.

Pile three — it is old. Plaster walls. Original glass. A roof with years left. Single-pane sash in a period elevation. In this town these are frequently assets, and treating them as defects is how a seller pays to make their house more ordinary.

The pile that usually has to be handled first

Active dry rot and live termite damage. Both are progressive, and a Section 1 item that has sat in a report for a year reads to a buyer as something nobody dealt with. Appearance has very little to do with it. Termite clearance runs anywhere from $800 to $30,000 depending entirely on what is behind the cladding — the range is on what preparation costs.

Knob-and-tube wiring, often. The problem here is usually insurance: some carriers will not write a policy on a house with active knob-and-tube, and a buyer who cannot get insurance cannot get a loan. Whether that applies to yours depends on how much is live, what has already been replaced and which carrier the buyer uses.

Anything an inspector calls a safety issue. A gas line, a panel, a failed water heater strap, an unprotected drop.

Beyond those, the presumption runs the other way.

Asbestos and lead sit under their own rules

These two are regulated, and the rules apply regardless of what is commercially sensible.

Houses built before 1978 carry federal lead-paint disclosure obligations, and that is a legal requirement rather than a marketing decision. Asbestos in flooring, ducting, insulation or siding is common in Palo Alto’s pre-1980 stock and is generally safest left undisturbed; testing, encapsulation and removal are work for a licensed abatement contractor, and disturbing it during a pre-sale renovation is the scenario that creates a real problem out of a stable one.

Get both looked at by somebody licensed to look at them, disclose what is known, and do not let a preparation schedule make that decision for you.

What an old house is actually worth here

BuiltRecorded salesMedian close, against first asking priceMedian days to contract
Before 1930286100.0%12
1930s162100.5%10
1940s323105.5%8
1950s844106.7%8
Everything built before 19601,615104.7%8
2015 or later19899.4%20
All Palo Alto single-family2,292103.4%9

Source: Maggie’s analysis of 2,292 Palo Alto single-family sales, MLSListings, 2021–2026; 2,289 records carry a year built.

Those figures measure the gap between what a house first asked and what it closed at, so they describe how reliably an expectation was met rather than which house is worth more. What they establish for this question is enough: the market here meets and beats the asking price on old houses at least as often as on new ones.

Where the line actually gets drawn

The report draws it. A pre-listing inspection is what turns this whole page from a list of materials into a list of decisions about your house — which items are active, which are cosmetic, what each would cost, and what a buyer is likely to do about each one if it is left.

Reading that report and deciding what to touch is the part worth paying for. It is made standing in the house with the report in hand, and it is different on every address.

What this page is

General information about how these items behave in a Palo Alto sale. Anything involving asbestos, lead, electrical safety or structural condition is work for a licensed professional in that trade, and anything involving what must be disclosed is a question for your own advisers.

The market figures in this section come from Maggie’s own analysis of 2,292 Palo Alto single-family sales recorded in MLSListings between 2021 and 2026. They are medians across many homes and describe what has already happened, not what will happen to one address. Where a street carries fewer than ten recorded sales it is named as a small sample and no rate is given for it. No individual home’s asking price or days on market is published here.

Maggie Ma Keller Williams Palo Alto · DRE #02117367 Updated

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