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What Counts as Developable Land in Hemel Hempstead? A Plain-English Guide

Feb 07, 2026

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If you own land, a large garden, or an unusual plot in Hemel Hempstead, you may have wondered whether it is classed as developable. This guide explains what actually counts as developable land and how to assess potential before taking the next step.

What Counts as Developable Land?

In simple terms, developable land is any land that could realistically support new housing, subject to planning permission.

That does not mean it already has permission. Many viable sites begin with potential rather than paperwork.

Common Types of Developable Land in Hemel Hempstead

Large Gardens and Side Plots

Back gardens, side gardens, and corner plots are some of the most common sources of new homes locally. Access and privacy tend to be the deciding factors.

Infill Sites

Small gaps between existing homes, former garage blocks, or unused parcels of land within established streets are often viewed favourably when designed sensitively.

Redundant or Underused Buildings

Old bungalows, workshops, storage buildings, or low density properties on large plots can sometimes be redeveloped into multiple homes.

Brownfield Land

Previously developed land, even on a small scale, is often encouraged for reuse under local planning policy.

What Does Not Usually Work

Not all land is suitable, even if it looks promising at first glance.

Common constraints include no realistic vehicle access, severe overlooking or loss of privacy, flood risk, drainage issues, or overdevelopment relative to neighbouring homes.

This is where local knowledge matters most.

Why Planning Precedent Matters More Than Assumptions

One of the strongest indicators of potential is what has already been approved nearby.

If similar plots in your street or surrounding area have gained permission, that history carries weight. Hemel Hempstead planning decisions are highly context driven.

Do You Need Planning Permission Before Selling?

Not necessarily.

Some land sells with permission in place. Other land sells on hope value, where buyers believe permission is achievable. Each route has pros and cons depending on timing, appetite for risk, and market conditions.

The Bottom Line

Developable land does not always look obvious. Many of the best opportunities start with everyday plots that simply have not been assessed properly.

If you own land in Hemel Hempstead and are curious about its potential, a professional appraisal can quickly clarify what is realistic, what is unlikely, and what is worth exploring further.

At David Doyle, our Land and New Homes team provides straightforward, local advice, helping landowners understand their options before committing time or money.