Most builders wait for the phone to ring. Word-of-mouth is great - but it is unpredictable, hard to scale, and completely outside your control. You cannot turn it on when work dries up or ramp it up when you want to grow. There is a smarter approach: targeting homeowners who are already planning building work in your area, before they have chosen anyone.

Why Planning Applications Are a Goldmine
Every planning application submitted in the UK is public record. When someone applies to build an extension, loft conversion, or new build nearby, they have already made the decision to spend money. They have spoken to an architect, drawn up plans, and committed to the project. They just have not chosen a builder yet.
This is the perfect moment to reach them. Sending a letter to neighbours within a set radius of that application puts you in front of people who are most likely to need exactly what you offer - before your competitors even know the opportunity exists. In many areas, dozens of applications are submitted every week.
Why Letters Work Better Than You Think
In a world of email marketing and social ads, a physical letter stands out. It does not get buried in a spam folder or scrolled past in a feed. It arrives through the door, gets picked up, and read. Open rates for direct mail average over 80%, compared to around 20% for email. It feels personal, local, and trustworthy - exactly the qualities homeowners look for when choosing a builder.
Direct mail open rates average over 80%. Compare that to email at around 20% - and you start to see why a well-timed letter is one of the most effective tools a local builder can use.
A letter also signals that you are a local, established business - not a national firm or an app-based platform. Homeowners want someone they can trust, who knows the area, and who will still be around if something needs fixing. A physical letter reinforces all of that before you have even had a conversation.

What to Put in Your Letter
Keep it short and local. Homeowners respond to letters that feel relevant - not generic sales material. Mention the planning application nearby, say what you do, and include a simple call to action. A QR code that links to your website or a photo gallery of past work dramatically increases response rates.
The key elements of a high-performing builder letter:
A personal opening that references the local area or project type. A brief description of your experience and the type of work you specialise in. Two or three recent local projects if you have them. A clear next step - a phone number, QR code, or both. Your full name and company name to build trust.
How PlanPing Makes It Simple
PlanPing monitors planning applications in your chosen area and automatically identifies nearby homeowners to target. You design your letter once inside the editor, and PlanPing handles the printing and posting. Every letter includes a unique QR code that tracks who scans it, so you can see exactly which campaigns are generating interest - and calculate your return on investment.
Unlike buying generic leads from an aggregator, every contact PlanPing sends a letter to is a real homeowner near a real planning application. You are not competing with five other builders who bought the same lead - you are the only one who reached out.
Getting Started
Start with a small radius around one or two planning applications in your area. Track your scan rate in the PlanPing dashboard, follow up with interested homeowners, and refine your letter copy over time. Most builders using PlanPing see their first enquiry within the first two weeks. From there, it is a consistent, measurable pipeline of local leads - without relying on referrals, comparison sites, or paying for cold leads that go nowhere.