Big lots, older homes, long-held, bought cheap, owner living elsewhere. Each scored against the rest of Discovery Bay from public record — listed or not. Save the ones you want and Tim can approach the owners for you.
The project with the most sale value on paper. Projects and ARVs are our assumptions from what Discovery Bay’s zoning allows — verify every property individually.
How the score works. Each lot is compared with every other house lot in Discovery Bay: lot size counts 30%, age of the home 20%, years since it last sold 20%, a lower last sale price 15%, and an owner who lives elsewhere 15%. A missing fact scores the middle, not the top. The score ranks opportunity to approach an owner; it is not an opinion of what any property is worth. Sale prices and dates are from public record and may be incomplete.
Fix and flips, teardowns, new construction and vacant land — 4,456 Discovery Bay lots, each with the record a developer actually needs.
Scored from the public record on lot size, age of the home, years held, what the owner paid and whether they live there — listed or not.
Lot size in square feet, the house and when it was built, the last recorded sale, how long it has been held, the owner’s status and the zoning.
Recent new-build sales within two miles and the highest sales of any kind within half a mile, on one map — the ceiling for what a finished house sells for.
The maximum floor area, footprint, height and setbacks from Discovery Bay’s own zoning code, plus ADU and SB 9 lot-split potential under state law.
Two models, every number a slider: what the land is worth to you after building, or the most you can pay for a remodel at your margin — with scenarios for a slower sale or a budget overrun.
Your report is saved to your account and emailed to you for the desktop. When a lot fits, Tim writes to the owner for you, even when it is not for sale.
Move the sliders. This is the report's real arithmetic on a sample Discovery Bay lot built from the city's own medians — the report you produce uses the lot's own record, zoning and comps.
Sample figures from Discovery Bay medians on 2 October 2026: 36 new-build sales, single-family sales over the last 24 months, and a $325/sq ft construction cost. Illustrative only — not an appraisal, an opinion of value, or investment, tax or legal advice.
The best flips in Discovery Bay are dated homes on good streets, owned for decades and bought for a fraction of today’s prices. Sort the map by oldest home or longest held, open the developer record, and run the fix and flip model: it prices the finished house from the top sales nearby, budgets a cosmetic remodel line by line, and solves for the most you can pay at your margin.
Large lots under small, older houses are where new construction pencils. Every Discovery Bay lot shows what the zoning allows — floor area, coverage, height and setbacks — next to recent new-build sales, so you can see the residual land value of a rebuild before you write an offer.
Every vacant lot on the record is on the map in green. With nothing to demolish they rank as the strongest opportunities, alongside oversized lots with ADU and SB 9 lot-split potential.
Most of the lots worth building on in Discovery Bay are not for sale. Every lot here is searchable whether it is listed or not, and Tim can approach the owner on your behalf with your price — the way most off-market deals actually happen.
Search every lot in Discovery Bay on this page, ranked for redevelopment from the public record: lot size, age of the home, years since it last sold, what the owner paid and whether they live there. Filter by lot size, age or owner, open any lot's developer record, and run a fix and flip or teardown analysis on it with a free account.
Yes. Most lots worth building on are not listed. Name your price and Tim writes to the owner on your behalf, four letters a month apart, after you sign a buyer representation agreement and authorise the price in writing. Homes listed with another broker are never approached.
The maximum floor area, footprint, height and setbacks are read from Discovery Bay's own zoning code and stored ahead of time, together with the state's ADU and SB 9 lot-split rules. It is arithmetic against published standards, not a determination; confirm with the city before you commit.
A report you produce on any lot: comparable new-build sales and the top sales nearby on a map, what the zoning allows, and two models you control with sliders — teardown and rebuild, which solves for what the land is worth to you, and fix and flip, which solves for the most you can pay at your margin. It is saved to your account and emailed to you.
A remodeled house sells at the top of its street, so the model starts from the best recent sales of a similar size nearby and adjusts lightly for size. Every input is yours to change. It is arithmetic on your own assumptions, not an appraisal or an opinion of any home's value.
Yes. Every published vacant lot is on the map in green and ranked with the rest.
Searching the map and opening any lot's developer record is free. Producing a Developer Comp Report takes a free account, so your analyses and slider settings are saved privately to you.
Figures update as sales are recorded in Contra Costa County. Market intelligence → · Methodology →
The Discovery Bay Market is run by one licensed agent, not a portal. Tim publishes the record, answers the questions and takes the calls.