What type of planning application is most likely to be approved in Dartford?

Conservatory at 93.1% based on 348 decisions.

What is hardest to get planning permission for in Dartford?

HMO at 66.7% based on 78 decisions.

How do approval rates vary by project type in Dartford?

From 93.1% (Conservatory) to 66.7% (HMO). What you build matters as much as where you build it.

Most Common Planning Applications in Dartford

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Dartford is 26.4% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

7,829 real decisions·17 project types·Updated August 2026

Check Planning Approval Patterns in Dartford

See your ward's approval rate and nearby planning decisions — free and instant.

Check My Postcode

All 17 project types ranked

#	Type	Decisions	Approved	Refused	Rate
1	Conservatory	348	324	24	93.1%
2	Hip-to-Gable Conversion	132	122	10	92.4%
3	Outbuilding	511	461	50	90.2%
4	Extension (General)	252	226	26	89.7%
5	Wraparound Extension	101	90	11	89.1%
6	Side Extension	1,027	915	112	89.1%
7	Rear Extension	2,102	1,854	248	88.2%
8	Dormer	890	777	113	87.3%
9	Garage / Parking	1,927	1,681	246	87.2%
10	New Build	739	636	103	86.1%
11	Front Extension	248	213	35	85.9%
12	Annex	106	91	15	85.8%
13	Basement	96	82	14	85.4%
14	Loft Conversion	262	223	39	85.1%
15	Change of Use (Residential)	463	340	123	73.4%
16	Flat Conversion	31	21	10	67.7%
17	HMO	78	52	26	66.7%

See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 93.1% approval rate. HMO? Just 66.7%.
Check your postcode to see what actually happens near your address.

Check My Postcode

What the data tells us

The range is massive: 66.7% to 93.1%. Choosing the right project type — or framing your application correctly — can dramatically affect outcomes.

Visibility drives scrutiny. Project types that change the external appearance — dormers, loft conversions, hip-to-gable — face more resistance than those that don't. The more visible your proposal, the more carefully it needs designing.

These are council-wide averages. Your ward, your street and your immediate neighbours all shift the odds. The comparable decisions near your property are the best indicator of outcome.

Before you spend £5,000+ on architects and drawings

968 planning applications in Dartford have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A free, property-specific report shows you what gets approved — and what gets refused — near your property.

Check my postcode

Free · Property report emailed in minutes · Based on 3,770,000+ real decisions

More Dartford planning data

Nearby councils project type rankings

Methodology: Classifies 7,829 decisions in Dartford into residential project types using keyword matching against proposal descriptions (matching generate_site_data.py subtype rules). A single application may appear in multiple categories. Data from Dartford Council's public planning portal, January 2020 to August 2026. Full methodology →