Field notes / Homeowner guide
Before buying land to build: a lot due-diligence checklist
A listing, old drawing or nearby house does not answer whether your proposed home can proceed. Organize parcel records, site questions and written responses before making a purchase decision.
Written · Revised · KB Remodeling
In brief
Identify the reviewing jurisdiction, gather records and assign unanswered questions to the right party. Missing documents are open questions—not proof of a suitable or unsuitable lot.
01
Before committing: set the investigation and decision sequence
Start by identifying the parcel and the proposed use, not by treating the listing’s city name as the reviewing agency. Ask whether the property is in an incorporated city or an unincorporated County area, then confirm the planning and building contacts. A mailing address is not a jurisdiction determination.
Next request available title, survey, prior plans and site reports; list their dates and limitations. Review the proposed house concept with the relevant agency and professionals, then ask providers about service and the contractor about access and site scope. Bring unresolved findings to your real-estate adviser or attorney before committing. Have that adviser explain any purchase investigation rights, deadlines or conditions; this guide does not establish a right to cancel.
Ask yourself
- Which agency confirms this parcel’s jurisdiction?
- What information must you have before the purchase decision, and who will obtain it?
02
Agency records: useful context, not permission to build
Los Angeles City Planning describes ZIMAS as a property-information tool covering land-use and zoning designations, planning applications and building-permit history. Use it for City of Los Angeles parcels, not as the authority for other cities or County areas. For another jurisdiction, request its own parcel and planning records.
Bring a rough concept and ask which zoning, overlay, design or other reviews apply. Record the office, response date, assumptions and items still needing an application or professional review. A map result, nearby development or old approval is not a guarantee that a new proposal will be approved. Ask separately about private restrictions; a municipal response does not resolve them.
Ask yourself
- What is the source and date of the zoning information?
- Which review questions depend on the actual design?
03
Title, easements and survey answer different questions
The Los Angeles County Registrar-Recorder/County Clerk defines an easement as a right in another person’s land, such as a right to cross or a public-utility easement. Its definitions also describe covenants, conditions and restrictions as restrictive limitations on property. Ask the title or legal adviser to identify the relevant recorded documents and explain their effect on your intended use; do not infer that a blank-looking lot has no restrictions.
Request the survey type, date, boundaries, grades and scope needed for the concept from the appropriate licensed professional. Ask the design team how any recorded easement will be located and shown on the working site plan. A title report, a survey and a zoning lookup are not interchangeable: reconcile them instead of assuming one answers all three sets of questions.
Ask yourself
- Which underlying easement documents have actually been obtained?
- Does the survey cover the information the design team needs, and what is not included?
04
Site investigation: ask what is known and what remains assumed
List slopes, drainage patterns, existing structures, trees and visible site conditions as questions for the design and investigation team—not as a diagnosis from photographs. Ask which survey, geotechnical, geological or other work the project needs and which authority will review it. Do not treat an area map or an old neighboring report as a parcel-specific investigation.
If an earlier report is available, ask its preparer or your current professional about the area studied, intended design, age and whether more work is needed for your concept. Keep the report’s scope and unresolved findings attached to the design brief. This guide supplies no bearing values, foundation recommendation or blanket investigation requirement.
Ask yourself
- Who decides what investigation scope is needed for this concept?
- Which unanswered finding could change the footprint, foundation or drainage approach?
05
Utilities and access: identify each separate decision maker
An existing meter, nearby line or former house does not tell you that service fits the proposed home. LADWP’s residential service page distinguishes installing, upgrading, relocating or modifying electrical loads, equipment and meters. Where LADWP is the provider, use its applicable request route; elsewhere ask the actual provider. Separate provider work from onsite routing, trenching and restoration.
Ask the relevant water, sewer or onsite-system authority and providers what information they need. For access, distinguish legal rights from the physical construction route. A title or legal adviser answers rights questions; the contractor evaluates equipment and delivery assumptions; the reviewing authority answers applicable street, access or fire-review questions. Identify any neighbor or private agreement separately rather than treating physical access as permission.
Ask yourself
- Which provider has responded to the proposed service demand?
- Who confirms access rights, construction logistics and applicable agency requirements?
06
Turn the document matrix into an availability log
The document matrix below explains purposes and limitations. Add an availability status to your own preparation log: received, requested or not yet located. “Not yet located” is not the same as “not required.” Record who holds the document, the date/version, the question it answers and the person who must assess its relevance.
Close the purchase investigation with a list of answered questions, unresolved assumptions and next actions—not a suitability score. If title, site information and the design concept disagree, ask the relevant adviser to explain the conflict before relying on any estimate. Keep parcel details and documents private; the planning contact needs only the information you deliberately choose to share.
Ask yourself
- What is unavailable, and what will you do before relying on it?
- Which adviser will review the unresolved findings with you?
07 · The decision
Decide in stages: what each stage must settle before the next
Buying land is a sequence of decisions, not one. Each stage should settle a question that would otherwise make the next spending premature: which authority governs the parcel, what the records and survey can and cannot prove, how much of the build envelope is known rather than assumed, and whether access and utilities are confirmed by the parties who decide them.
Keep two columns apart in your notes: known (supported by a dated document for this parcel) and unconfirmed (inferred from a map, listing or neighbouring lot). A slope, a coastal location or a utility gap moves a question into a specialist guide; it does not make this land-purchase decision someone else's.
| Question | Evidence needed | Who resolves it | Effect on layout or budget | Next official resource |
|---|---|---|---|---|
| Which authority governs this parcel? | City or county zoning and parcel lookup | Owner, confirmed with the planning counter | Sets which rules and reviews apply | City zoning tool or planning department |
| What do title and records actually show? | Preliminary title report, recorded easements, permit history | Title officer; attorney where needed | Easements can remove buildable area or add access obligations | County recorder and title report |
| Where are the true boundaries and grades? | Boundary and topographic survey | Licensed land surveyor | Fixes setbacks, slopes and the usable footprint | State surveyor licensing board |
| How much of the envelope is known? | Zoning standards applied to the survey, open questions listed | Architect or designer, with the city | Defines realistic size and siting; unknowns stay open | Planning department |
| Are access and utilities confirmed? | Provider responses and street/access confirmation | Utility providers and public works | Can add offsite work and change the budget materially | Utility provider service pages |
Ask yourself
- Which stage are you in, and what must it settle before you spend on the next?
- Which build-envelope items are still unconfirmed rather than known?
Loading Owner document checklist…
Before purchase: availability and answer ownership
| Record / request | Availability to record | Who to ask / limit |
|---|---|---|
| Jurisdiction and zoning | Official response or lookup, date and parcel match | Planning/building office; not title or project approval |
| Title and recorded instruments | Report plus referenced documents received or requested | Title/legal adviser; ask about effect, not just document names |
| Survey | Type, date, scope, received or requested | Survey professional; ask if the proposed design needs more information |
| Site investigation | Report scope, design basis, missing follow-up | Relevant professional and authority; no listing-based diagnosis |
| Utility response | Provider, proposed demand, response status | Each provider/authority; connection existence does not establish capacity |
| Access / private constraints | Rights documents and logistics questions | Legal/title adviser, contractor and authority answer distinct questions |
| Prior plans / approvals | Version, jurisdiction, availability and intended use | Seller/records office and design team; old documents are not new permission |
A scenario to consider
Illustrative only, not a KB project: a buyer receives a title report but no usable survey. A utility easement is referenced, and the desired driveway crosses its apparent route. The buyer requests the recorded instrument and asks the survey/design professionals and legal adviser to reconcile location, rights and design before relying on the driveway concept.
Planning scenario
Part of the custom-home planning series: Custom home planning
Bring this to your conversation
- Confirm the parcel and reviewing jurisdiction
- Request recorded documents referenced by the title report
- Log survey and site-report dates, scopes and missing information
- Ask agencies about the actual proposed use and design
- Get provider questions and construction-access assumptions in writing
- Review unresolved findings and purchase terms with the appropriate advisers
Terms used here
- Jurisdiction
- The public agency with authority over the address; a postal city or neighborhood name alone does not prove it.
One more question
Does a zoning lookup prove a lot is ready to build?
No. It is one information source. Title/private restrictions, site information, access, utility requirements and project-specific review remain separate questions. Have the relevant agency and professionals address the proposed project.
Official references
Research the property · Web resource · English source
Los Angeles City Planning — Zoning search (ZIMAS)Use this for: Look up City of Los Angeles parcel and zoning information before asking Planning what applies.
Research the property · Web resource · English source
Los Angeles County Registrar-Recorder/County Clerk — Document types and definitionsUse this for: Distinguish recorded property documents from building permits and inspection records.
Request utility service · Web resource · English source
Los Angeles Department of Water and Power — Residential and subdivision electric service requestsUse this for: Prepare an electric-service request where LADWP is the provider; a connection is not a capacity finding.
Check professionals · PDF · English source
California Board for Professional Engineers, Land Surveyors, and Geologists — A Guide for ConsumersUse this for: Identify the engineering, survey or geological professional to consult about the site.
For requirements specific to your property, consult the local reviewing authority.
About this guide
Published by KB Remodeling from the official sources cited. It is not attributed to an individual author and does not claim review by an architect, engineer or attorney. We receive remodel, ADU, new-home and rebuild inquiries; scope, licensing and location are reviewed before any next step.