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Not Yet Built™


Pinpoint where your new customers are likely to come from.


Not Yet Built™

How do you identify new building developments and the new customers that this may present you with? With Not Yet Built™ you’ll be able to identify homes, offices and business parks during the planning and construction phases. With data that’s refreshed monthly, we can help you:

  • build an accurate picture of where your future customers will be

  • improve your knowledge of local markets.

  • plan well targeted campaigns well in advance for customers with a high demand for products and services


Product information

What is Not Yet Built™?

Whenever a new residential or commercial property receives planning permission, the local authority will assign a house name and a street name before coming to Royal Mail to ask us to assign a postcode. Royal Mail captures all of these address and postcode details on our Not Yet Built™ database.

Who uses Not Yet Built™?

The Not Yet Built™ database gives you details of properties that are being built or are scheduled to be built in the future. This data will be especially beneficial if you are involved in property and construction. Whether you are a developer, builder, materials supplier, utility company, landscape gardener or financial services provider offering mortgage and credit cards, you’ll find Not Yet Built™ a valuable marketing asset.

Not Yet Built™ Data

Not Yet Built™ holds approximately 250,000 – 300,000 records, though the amount depends entirely on the number of properties currently under construction or in the planning phase. Records are held until they have finished being built and are capable of receiving mail, at which point it will be transferred to Just Built™ and PAF®. If a proposed development is abandoned or stopped then it will be removed from the file.

Not Yet Built™ includes data for England, Scotland, Wales and Northern Ireland but excludes Jersey, Guernsey and the Isle of Man.

File formats

Not Yet Built™ is available in three file formats:

  • Not Yet Built™ Keyed – a relational style database that must be used in conjunction with the PAF® Mainfile

  • Not Yet Built™ Expanded – a text file that gives one record for each range of delivery points listed e.g. 1-20 High Street will be shown as 20 separate records

  • Not Yet Built™ Ranges – a text file that gives one record for each range of delivery points, e.g. 1-20 High Street will be shown as one record.

Not Yet Built™ data is refreshed monthly.

Sample Data

If you are interested in developing your own software solutions that incorporate address data then you can download a sample of Not Yet Built™. Simply complete the registration process, accept our terms and download your data. Alternatively, our First Steps CD contains samples of Not Yet Built™, PAF®, and our other raw datasets. Request your free copy of First Steps now.