Most Harlow homeowners searching for planning costs find the £548 householder application fee and stop there. That number is real — but it's rarely the whole story. The actual cost of getting permission depends on a tangle of property-specific factors that most people don't discover until they're already mid-process. WhatCanIBuild is built to cut through exactly that confusion before it costs you time or money.
The short version
- The standard householder fee is £548, but that's just the application fee
- Harlow has 10 conservation areas, 14 Article 4 directions, and 359 listed buildings — any of which can change what you need to submit
- Green Belt land covers parts of the borough and adds another layer of uncertainty
- The best way to know what applies to your property is to check it specifically
The fee is the easy part
The £548 covers your planning application — nothing else. Before you even get there, you may need drawings, a heritage statement, a design and access statement, or specialist surveys. These aren't optional extras; depending on your property and project, they're requirements. And if your application is submitted with the wrong fee or missing documents, it won't be validated. That means delays, and potentially starting the process again.
On top of the application fee, Planning Portal charges a service fee of £75.83 + VAT on applications submitted online that attract a fee over £100. Most homeowners don't realise that's coming until checkout.
Where Harlow gets complicated
Harlow isn't a straightforward borough to navigate. Ten conservation areas affect what you can do externally — but being near one isn't the same as being in one, and being in one doesn't tell you what's actually restricted for your specific project. There are also 14 Article 4 directions in place across specific streets. These quietly remove certain permitted development rights that homeowners usually take for granted.
Then there are the 359 listed buildings across the district. Works to a listed building require separate listed building consent — and that application carries no fee. But the supporting documentation required can be substantial, and the rules about what's acceptable are far stricter and less predictable than standard planning.
Parts of Harlow also fall within Green Belt land. Green Belt designation adds a completely different dimension to what's considered acceptable, and it's not always obvious from a postcode or street name alone which side of the boundary your property sits on.
Worth knowing
Conservation area consent and listed building consent applications don't carry a planning fee — but the professional costs involved in preparing them are often higher, not lower.
What neighbours' projects tell you
One thing most homeowners never think to check: what's actually been approved or refused on nearby properties, and why. In a borough with as many designations as Harlow, two houses on the same street can have very different outcomes for the same type of project. The best way to understand your real approval odds — not just whether your project is technically possible, but whether it's likely to succeed — is to look at what's actually happened nearby. WhatCanIBuild surfaces that local decision data so you're not going in blind.
What you actually need to know before you spend anything
Before you commission drawings or book a planning consultant, the questions worth answering are: Is your property in a conservation area? Does an Article 4 direction apply to your street? Is the building listed? Are you in the Green Belt? And critically — what has actually been approved for similar projects nearby?
Most homeowners find out the answers to these questions late, after they've already committed time and money. WhatCanIBuild gives you that picture upfront — the constraints, the local decision history, and what they mean for your specific project.
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