Windsor-Essex renovation calculator

Should I renovate before selling, or sell as-is?

Enter the property's as-is value, the rough cost and timeline of the work, and what it could realistically sell for after. The estimate weighs the renovation and carrying costs against the extra sale price, not just the price difference alone.

Published Updated Reviewed by Matt Biggley

Your scenario

Change any assumption.

Methodology in plain language

How the estimate is calculated

Net gain from renovating = (expected value after renovation − commission and HST on that price) − renovation cost − carrying costs during the work − (as-is value − commission and HST on the as-is price).

Carrying costs are the carrying cost per month multiplied by the months the work takes, covering the mortgage, taxes, insurance, and utilities during a delayed sale. Ontario HST is calculated at 13% of the commission on each scenario's sale price.

Grounded in renovation experience, not a general rule

Matt has renovated six homes personally, including a waterfront cottage and an 1886 Gothic Revival restoration. Generic advice about renovation return on investment does not account for a specific property's condition, buyer pool, or the work a Windsor-Essex buyer will actually pay for. Use this estimate as a starting range, then confirm scope and cost with contractors before deciding.

Inputs to vary when the renovation scope is uncertain.
Renovation costUse a contractor quote where possible; a rough estimate understates cost more often than it overstates it.
Expected value after renovationBase this on comparable renovated sales in the specific neighbourhood, not a percentage rule of thumb.
Months to completeInclude permitting, material lead times, and typical delays, not only the contractor's working days.
Carrying cost per monthInclude the mortgage payment, property tax, insurance, and utilities for the property during the work.

Worked example

For a $600,000 as-is home, a $60,000 renovation taking 3 months at $2,500 per month in carrying costs, expected to sell for $700,000 after:

Total renovation investment$67,500
Net proceeds if sold as-is now$572,880
Net proceeds if renovated first$668,360
Estimated net gain from renovating$27,980

What is not included automatically

Financing costs for the renovation itself, permit fees, the emotional and logistical cost of living through or vacating during construction, market timing risk if conditions shift during the work, and the possibility that scope or cost changes once work begins are not calculated here.

Limits and professional review

This is a planning estimate grounded in Matt's renovation experience and current market conditions, not a contractor quote, appraisal, or promise of resale value. Confirm renovation scope and cost with a licensed contractor and confirm likely resale value with a property-specific review before deciding.

Also useful: the net proceeds calculator and the move-up cost calculator.