21days — planning next to your home

21 days.
That’s all you get.

21days watches the houses next to yours. Before an ugly extension is built, a beloved tree is chopped down, or your local shop is turned into flats. Councils in England often only stick a notice on a lamp post. Comments usually close in 21 days — including when the proposal is rewritten, and when something nearby is decided.

77k

householder applications in the registers we hold, last 12 months

523k

houses sold on the Land Registry file we hold, last 12 months

269

English planning authorities we read

How many of these are near you?

01 — What we do

A date, not a dashboard.

Name your postcode. We read the same English planning registers every morning and email you when something new matches your area. We also watch nearby house sales: a new owner is often the next person to apply.

  1. 01

    Name the place

    Your postcode. One application is £5.99. Monthly is two miles, with alerts. Yearly is ten miles.

    Your street

    Focused on your street, not every application in the district.

  2. 02

    We watch the portal

    We alert you for anything new, anything that changes, and when something nearby is permitted or refused.

    The window

    We alert when it appears. That is when the clock starts. If the council published a close date, days left are in the email.

  3. 03

    You comment there

    Objections belong on the council site. We only make sure you still can. We are not the council, and we do not decide the application.

    Amendments

    If the proposal is rewritten, you hear in English — not a wall of PDF text.

  4. 04

    We watch sales

    Recent completions from Land Registry. New owners are the ones most likely to apply for work next — a signal that something may start near you before a notice goes up.

    Sold houses

    Not a price list. Nearby sales, so you can see who may change a house next.

Follow one application for £5.99, the street for £6.99 a month (two miles), or £59.99 a year (ten miles).

02 — The problem

Most people find out after the window has shut.

For many householder applications the council may site-notice or write only to adjoining occupiers — not the whole street. By the time you see the skip, comments have often already closed.

A quiet English terrace street in morning light
The streets you care about.
A yellow planning notice in a plastic sleeve on a lamp post
A notice on a lamp post is easy to miss.
A garden tree beside a neighbouring extension under construction
Trees, shops, light — once it is built, it is built.

01 — Search

Nearest first, with days left.

Open comments around a postcode. These three are live on the Brighton register.

  • Address, proposal, and the council reference
  • Days left on the card
  • Nearest first, not a borough-wide list
21days Search Open comments
21days search for BN1 6JR: Hythe Road, Chester Terrace and Eldred Avenue, each with days left to comment.

02 — The application

The page you open on a case.

Status, the map, how far it has got, and the council buttons. This is BH2026/01872, a live Brighton sign application.

  • Days left to comment, on the case
  • Progress from submitted through to a decision
  • The council portal, the documents, and the comment form
21days Application BH2026/01872
21days application BH2026/01872 in Hove: pending signage, a map, progress from 24 August, and comments closing 28 September.

03 — Nearby

What else is close.

The other applications around that site, nearest first. Adjoining, then yards away.

  • Pending and decided, in the same list
  • How near each one is
  • Each row opens a case like the one above
21days Nearby Boulevard Place
Nearby applications around Boulevard Place, Hove: one adjoining and pending, others 70 yards away, including one already permitted.

04 — Watchlist

The cases you keep.

Follow an application and it stays here, with anything that has changed since you last looked.

  • Days left, and a tag once you have written about it
  • Address, proposal, and the dates
  • A decision, a rewritten proposal, or a window that closed
21days Watchlist 2 followed
21days watchlist: a pending sign application at Hove Central with 2 days left to comment, and a change of use at Homewood College marked letter drafted.

05 — Alerts

Email when the street changes.

An alert on your postcode. Daily, weekly, or only when something changes. Nothing goes out on a quiet day.

  • How many applications currently match
  • How often the email goes
  • Delete it when you want it to stop
21days Alerts Summerdale Road
21days alerts: a daily email for Summerdale Road, BN3 8LG, within 10 miles, with 1,926 applications currently matching.

06 — What you pay for

The street watch.

The list, the case, what else is close, the watchlist, and the email. £5.99 once, £6.99 a month, or £59.99 a year.

Planning nearby

Applications around your home, nearest first: next door, then adjoining, then down the road. Address, proposal, days left to comment, and a link to the council record. Not a town-wide dump of every loft extension in the borough.

Sold houses nearby

Recent completions from Land Registry. New owners are the ones most likely to apply for work next — a useful signal before a notice goes up.

Alerts and updates

Email when something new appears, when the proposal is rewritten in English, and when something nearby is permitted, refused, or withdrawn. Days left are in the subject.

Tracking

A watchlist for the cases that matter, with days left and the closing date. Open consultations sit first.

This house

Other applications at the same address. What has already been asked for at this house — not a guess about the street.

On this plot

Whether your home sits in a conservation area, an Article 4, a listed building outline, or a tree preservation zone. From planning.data.gov.uk. Indicative — not a formal search.

Two miles, monthly

The neighbourhood around the house. Search, sold houses, alerts — including nearby decisions — tracking, and filters — extensions, lofts, trees, change of use, paperwork, and more — for £6.99 a month. Stop whenever.

Ten miles, yearly

A wider radius — ten miles. The same watch, including filters. £59.99 a year — less than twelve months paid monthly.

07 — What it costs

A household amount.

One application

£5.99

Pay once. Track this case, amendments in English, days left in the email. Stops when it is decided.

Monthly

£6.99 / month

Two miles: planning nearby, sold houses, alerts on new work, amendments and nearby decisions, a watchlist, and filters.

Yearly

£59.99 / year

Ten miles, the same watch. Less than twelve months paid monthly.

08 — Questions

Before you pay

Is it always 21 days?

That is the usual minimum in England, not a fixed rule. We use the date on the council record.

Can I object through 21days?

No. Comments belong on the council portal. We email you while the window is still open.

Will this stop the extension?

No. It only gives you time to comment. The council decides.

Do you tell me when something nearby is decided?

Yes, on a paid watch. Permitted, refused, or withdrawn — not only new submissions.

More questions

Watch the street while you still can.

21 days. That’s all you get.