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๐Ÿ” Investor Due Diligence Guide 2026

Before You Choose Any Property Investment Company โ€”
Ask These 8 Questions First

๐Ÿ“… Updated June 2026โฑ 6 min readโœฆ Independent โ€” no deals to sell
This is not a list of the best property investment companies. This is something more useful โ€” the questions every serious investor should ask before committing to any deal, regardless of how professional the brochure looks.
A scenario worth reading carefully

Imagine you find what looks like the perfect investment. 8% projected yield. Hands-off management. Beautiful brochure. Confident agent. Twelve months later the rent is ยฃ180/month less than projected. The management fee was quoted net but charged gross. The off-plan development next door has stalled. When you ask about selling, you discover the resale market for this apartment type is thinner than you were told.

Nothing was hidden. You just didn't know the right questions to ask.

This is not a story to put you off property investment. Done properly, it remains one of the most reliable ways to build long-term wealth in the UK. But the scenario above happens more often than the industry likes to admit. The good news is it's entirely preventable. The best investment companies welcome these questions. They have good answers because they have good products.

Question 1 โ€” What is the true net yield after every cost?

Gross yield is the headline. Net yield is the reality. Management fees, void allowance, maintenance, insurance, service charge, ground rent โ€” all reduce gross yield significantly. In most fully-managed BTL investments, true net yield is 25-35% lower than gross. On an 8% gross deal that means 5-6% net. On a mortgaged property, it can be lower still.

Ask for a full written cost schedule. If the agent quotes gross only and changes the subject when you ask about net โ€” that tells you something important.

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Question 2 โ€” Have you checked their independent reviews?

Testimonials on a company's own website are marketing. Google Reviews, Trustpilot and property investment forums are data. Spend twenty minutes before you spend twenty thousand pounds. Look for patterns not individual complaints โ€” multiple issues around the same problem are meaningful signals.

Question 3 โ€” Have you shopped around?

The same investment type may be available through multiple companies at different prices. Take the time to compare. It gives you information and leverage.

Question 4 โ€” Are you genuinely getting the best deal?

Look carefully at what is included. A furnished property ready to let is different from one requiring a ยฃ10,000 furniture pack. Get the total cost of acquisition in writing before you calculate any yield. Ask specifically about every additional fee at completion.

Question 5 โ€” If it's off plan, what is the developer's track record?

Off-plan investment carries a risk completed property does not โ€” the developer must complete the project. Research the developer directly. How many projects have they completed? Have they delivered at the same scale before? Search Companies House. A recently formed company with no completed schemes is a different risk profile to one with fifteen delivered projects.

Question 6 โ€” What does the property due diligence actually show?

For leasehold properties โ€” what is the remaining lease length? What are the service charges and have they risen in recent years? For HMOs โ€” what licence does it hold, when does it expire, is it in an Article 4 area? Know the questions and you can chase the answers before you're committed.

Question 7 โ€” What is the exit strategy?

Some investment properties have thin resale markets. City centre apartments in locations with high new build supply can be difficult to sell at profit within five years. Ask who would buy this property in three years and at what price. Check Land Registry for recent comparable sales.

๐Ÿ—บ Verify before you commit

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Question 8 โ€” Is the projected rent independently verified?

Projected rental income is often provided by the company selling the property. Before committing, speak to two or three local letting agents with no connection to the sale. Check live Rightmove listings for comparable properties in the same street. A difference of ยฃ150/month over ten years is ยฃ18,000 of income that was never going to materialise.

The best companies welcome every single one of these questions.

A company with genuinely good products has nothing to fear from due diligence. They will have clear answers and proper documentation. Due diligence doesn't kill good deals โ€” it protects you from the wrong ones and gives you the confidence to move fast on the right ones.

Now you know what to ask. Go ask it.
Location
Best Places to Invest in Property UK 2026
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Education
Gross vs Net Yield Explained
5 min read โ†’

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This article is for educational purposes only and does not constitute financial, legal or investment advice. Always conduct independent research and seek qualified professional advice before investing. Now I Know Property accepts no liability for investment decisions made based on this content.