# 1340 Clay St, Unit 603 · The Rent Hacker > Underwriting record for 1340 Clay St, Unit 603 (San Francisco): the published verdict at The Rent Hacker's defaults, plus a calculator that reruns it at your numbers. Canonical: https://therenthacker.com/property/rh-9pavw2/1340-clay-st-unit-603/ Source: The Rent Hacker (https://therenthacker.com/). License: RSL, attribution required — https://therenthacker.com/license.xml --- Evaluated # 1340 Clay St, Unit 603 At our cautious numbers, renting and putting the same money in index funds comes out ahead. It did not pass our bar. 94109 · San Francisco Underwritten as of 2026-08-18 · record v6 **Published at our defaults:** loses to the S&P, behind by $787,250 · S&P breakeven 0% first-pass screen [Run your own numbers on any building →](/calculator/) This record was published before we began recording the mortgage rate behind each verdict, so it cannot be re-run at your numbers. ## Property facts Asking price $1,499,000 Units 1 Beds / baths 2 / 2 Square feet 1,705 Year built 1991 Property type Condo Unit count: unverified A single source states 1 unit; no independent record corroborates it. Treat the count as a claim, not a verified fact; every number on this page rides on it. Nearby projects on our catalyst watch: - Cable-car network (Powell-Mason / Powell-Hyde / California) · 0.3 mi · open today - Polk Streetscape Project · 0.3 mi · open today - Saint Francis Memorial Hospital (Polk/Bush) · 0.3 mi · open today From the 2026-08-18 screen: 400 scanned · 34 beat the S&P at our defaults · 366 rejected. ## If the market turns Modeled appreciation is an assumption, so we replayed this deal against history: every 10-year window in the federal house-price index for San Francisco County (41 windows), each one swapping its actual price path in for our modeled appreciation. History replay Years Ends vs the never-buy path Worst window 1989→1999 −$2,813,834 Median window 1983→1993 −$505,004 Best window 1996→2006 +$2,030,760 27 of the 41 windows ended behind the never-buy path. Replay the 2008 crash as it hit this area and the deal ends year 10 $1,298,615 behind the never-buy path; the deepest point comes in year 10, $1,298,615 behind. These windows track San Francisco County as a whole. Within the county, individual ZIPs' realized 10-year outcomes typically differed from the county's by about ±0.6 points/yr — one zip-decade in ten differed by ±1.8 points/yr or more, and the largest gap since 1975 was 7.4 points/yr. A specific building varies more than its ZIP, not less. ## Where these numbers come from Of the 10 inputs behind this analysis, 4 trace to evidence (our listing feed, area comps, county records). - **Purchase price**: an unclassified source · no independent witness - **Rent while you live in one unit**: a standing area-research rule · single source - **Rent after you move out**: a standing area-research rule · single source - **The rent you would pay on the never-buy path**: an unclassified source · no independent witness - **Property tax rate**: an unclassified source · no independent witness - **Unit count**: county assessor records · single source A standing convention is a deliberate modeling choice we apply to every deal. We flag it rather than dress it up as evidence. ## What we could not verify - How far these numbers could move: we run that spread only for the eight strongest properties in each ZIP, and this one was not among them. The cautious numbers above are the only ones we have for it. Members on a paid plan can request verification. ## Order the verified underwrite This page is our automated underwriting. Order the verified report and a person does the rest by hand: the live listing, the photos, the parcel's exact tax bill, the rents. The finished report publishes right here on this page, within one business day. [Underwrite this building — $79](/lookup/?address=1340%20Clay%20St#underwrite) or [take the pass](/checkout/?tier=pass) at $49/mo and open every building that wins, the week it lists. ## Want this for an address you pick? Every week we underwrite this metro’s 2-4 unit listings against the S&P and publish the [whole board](/board/), with the reason on every one we rejected. [Or look up a specific San Francisco address](/lookup/) ## Want this analysis for another address? Any San Francisco address, underwritten the same way — cautious rents, the registry, the S&P line. [Underwrite an address →](/lookup/) A full report like this one, for an address you pick: Underwrite an address — $79, delivered within one business day. Record v6 · engine aafb236 · profile fha-house-hack Next ## This is one row of the San Francisco board. The run of August 18, 2026 put every two-to-four-unit listing in San Francisco through the same comparison. The rest of the board, losers and rejections included, is one page. [See the San Francisco board](/board/sf-proper/) [Underwrite one address for $79](/lookup/#underwrite) [Take the pass, $49/mo](/checkout/?tier=pass&r=sf)