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PropLab
Home
ARV Calculator
After repair value from your comps
Rehab Cost Calculator
Line-item repair budget with contingency
70% Rule Calculator
Maximum offer from ARV and repairs
Fix and Flip Calculator
Profit, cash needed, and ROI
BRRRR Calculator
Cash left in the deal and cash flow
Wholesale Calculator
Seller offer with your assignment fee
Comp Finder
Recent comparable sales for any address
BlogAboutLogin

PropLab Blog

Expert insights, tips, and strategies to help you make smarter real estate investment decisions.

Featured Post

How Does a Private Lender Work for Flippers - PropLab Blog
General

How Does a Private Lender Work for Flippers

How does a private lender work? See rates, LTV, points, draws, and how flip or BRRRR exits differ from bank loans.

November 1, 2026
16 min read
Read More →

Recent Posts

Off the Market Homes: How Investors Find Them - PropLab Blog
General

Off the Market Homes: How Investors Find Them

Learn what off the market homes are, why investors chase them, the real price gaps, legal limits, and sourcing methods that still work in 2026.

10/31/2026
15 min
Read more →
How to Estimate House Extension Cost in 2026 - PropLab Blog
General

How to Estimate House Extension Cost in 2026

Estimate house extension cost from measured area, local rates, permits, design, utilities, and contingency instead of one price per square foot.

10/30/2026
14 min
Read more →
Can You Renovate a Townhouse? Rules, Permits and Costs - PropLab Blog
General

Can You Renovate a Townhouse? Rules, Permits and Costs

Can you renovate a townhouse? Learn which work needs HOA approval, party-wall and fire rules, permits, realistic costs and the steps to take.

10/29/2026
15 min
Read more →
Gross Income Multiplier Explained: Formula and Examples - PropLab Blog
General

Gross Income Multiplier Explained: Formula and Examples

Learn the gross income multiplier formula, calculate it step by step, see worked examples, and compare it with GRM and cap rate before you invest.

10/28/2026
14 min
Read more →
Double Closing Real Estate: How It Works, Rules and Risks - PropLab Blog
General

Double Closing Real Estate: How It Works, Rules and Risks

Learn how double closing real estate deals work, when they are legal, how they differ from assignment, and the tax and reporting risks investors face.

10/27/2026
15 min
Read more →
Building Code Compliance Explained for Property Investors - PropLab Blog
General

Building Code Compliance Explained for Property Investors

Learn what building code compliance means, which codes apply, how permits and inspections work, and how to price compliance risk into your offer.

10/26/2026
17 min
Read more →
Real Estate Skip Tracing: A Legal Step-by-Step Guide - PropLab Blog
General

Real Estate Skip Tracing: A Legal Step-by-Step Guide

Learn what real estate skip tracing is, where owner data comes from, the legal limits, and a step-by-step workflow to find the right decision-maker.

10/25/2026
16 min
Read more →
Interest Rate Sensitivity for Real Estate Investors - PropLab Blog
General

Interest Rate Sensitivity for Real Estate Investors

Learn how interest rate sensitivity moves property values, ARV, MAO, and lender underwriting, with metrics, stress tests, and modeling tips for investors.

10/24/2026
15 min
Read more →

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PropLab

AI-powered real estate deal analysis for investors who move fast.

Tools

ARV CalculatorComp FinderRehab Cost Calculator70% Rule CalculatorFix and Flip CalculatorBRRRR CalculatorWholesale CalculatorDeal FinderExit Strategy CalculatorContract Generator

For

FlippersWholesalersInvestorsAgentsLendersBeginnersSTR InvestorsRemote InvestorsAcquisitionsRetirement Planners

Community

All DealsFix & FlipWholesaleBRRRRBuy & Hold

Company

AboutContactBlogGlossaryAI Underwriting ToolsUnderwriting Software

Legal

PrivacyTerms

© 2025 PropLab. All rights reserved.

SimilarLabs
All systems operational