House extensions in East Hertfordshire

East Hertfordshire received 967 householder applications in the last 12 months - about 19 a week. Rear extensions and garage works are the most common. Of the 678 decided so far, 578 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

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Showing 50 of 280 applications
Yesterday Awaiting decision 3/26/1482/HH

5 Maple Grove Bishops Stortford Hertfordshire CM23 2PS

Conversion of part of garage into utilities, alterations to external finish materials and fenestration

Householder East Hertfordshire
Yesterday Awaiting decision 3/26/1020/HH

10 Carters Leys Bishops Stortford Hertfordshire CM23 2RH

Two storey side extension, replacement of windows, roof tiles and render, cladding added to ground floor on rear and right elevation

Householder East Hertfordshire
Yesterday Awaiting decision 3/26/1488/HH

4 The Limes Sawbridgeworth Hertfordshire CM21 9FB

Hip to gable roof with rear dormer to garage

Householder East Hertfordshire
23 Oct 2026 Awaiting decision 3/26/1483/FUL

Pearces Farm Shop Standon Buntingford Hertfordshire SG9 9ND

Single storey side/rear extension

Full Application East Hertfordshire
23 Oct 2026 Awaiting decision 3/26/1481/HH

7 Town Lane Benington Hertfordshire SG2 7LA

Erection of detached outbuilding to the rear of the property (part-retrospective)

Householder East Hertfordshire
23 Oct 2026 Awaiting decision 3/26/1397/CLPO

10 Balfour Street Hertford Hertfordshire SG14 3AX

Certificate of lawfulness for proposed demolition of existing brick sheds and construction of detached outbuilding for use as home studio

CL Proposed Operations East Hertfordshire
23 Oct 2026 Awaiting decision 3/26/1232/HH

57 Vicarage Road Buntingford Hertfordshire SG9 9BA

First floor infill front extension

Householder East Hertfordshire
23 Oct 2026 Awaiting decision 3/26/1193/HH

35 Tatlers Lane Aston End Hertfordshire SG2 7HL

Proposed garage conversion into habitable space incorporating roof lights, erection of double garage and carport

Householder East Hertfordshire
21 Oct 2026 Awaiting decision 3/26/1486/HH

1 Johns Road Bishops Stortford Hertfordshire CM23 2BS

Removal of the existing garage, loft conversion incorporating one rear dormer, first floor side extension, erection of front porch, installation of on...

Householder East Hertfordshire
21 Oct 2026 Awaiting decision 3/26/1493/FUL

Aston Village Hall New Park Lane Aston Hertfordshire SG2 7ED

Single storey side extension with enlarged fenced off play area

Full Application East Hertfordshire
21 Oct 2026 Awaiting decision 3/26/1451/LBC

1 High Street Hunsdon Hertfordshire SG12 8NH

Erection of two-storey side extension, demolition and re-building of rear extension with additional window and roof light and replacement windows thro...

Listed Building Consent East Hertfordshire
21 Oct 2026 Awaiting decision 3/26/1450/HH

1 High Street Hunsdon Hertfordshire SG12 8NH

Erection of two-storey side extension, demolition and re-building of rear extension with additional window and roof light and replacement windows thro...

Householder East Hertfordshire
21 Oct 2026 Awaiting decision 3/26/1285/HH

Lawns Cottage Windhill Old Road Bishops Stortford Hertfordshire CM23 2NX

Replacement of windows

Householder East Hertfordshire
21 Oct 2026 Awaiting decision 3/26/1487/CLPO

30 Bayford Green Bayford Hertfordshire SG13 8PU

Certificate of lawfulness for proposed insertion of replacement door and installation of sliding door to side elevation, and replacement of existing w...

CL Proposed Operations East Hertfordshire
20 Oct 2026 Awaiting decision 3/26/1365/FUL

Premier Inn Marsh Lane Ware Hertfordshire SG12 9QB

Partial change of use from Use Class E(b) (sale of food and drink) to Use Class C1 (hotels) to provide additional hotel bedrooms on the ground floor, ...

Full Application East Hertfordshire
20 Oct 2026 Awaiting decision 3/26/1434/HH

122 Ware Road Hertford Hertfordshire SG13 7HR

Construction of a detached outbuilding

Householder East Hertfordshire
20 Oct 2026 Awaiting decision 3/26/1412/HH

163 Cromwell Road Ware Hertfordshire SG12 7LH

Demolish existing detached garage and front porch, construction of single storey rear and side extension and front porch

Householder East Hertfordshire
20 Oct 2026 Awaiting decision 3/26/1383/FUL

Back Barn And Sele Barn 143B - 143A North Road Hertford Hertfordshire SG14 2BX

Change of use of land formerly used for storage to garden land for Sele Barn (143A) and Back Barn (143B), and alterations to Back Barn and former offi...

Full Application East Hertfordshire
19 Oct 2026 Awaiting decision 3/26/1477/HH

22 Hare Street Road Buntingford Hertfordshire SG9 9HW

Erection of single storey front porch and side extensions

Householder East Hertfordshire
19 Oct 2026 Awaiting decision 3/26/1480/HH

82 Mangrove Road Hertford Hertfordshire SG13 8AN

Two-storey rear extension at first and second floor level; demolition of existing rear dormer, installation of roof light and window to side, and exte...

Householder East Hertfordshire
19 Oct 2026 Awaiting decision 3/26/1413/HH

Windy Ridge 2A Whempstead Road Benington Hertfordshire SG2 7BX

Construction of a car port

Householder East Hertfordshire
19 Oct 2026 Awaiting decision 3/26/1399/HH

Uffords Farm House Unclassified Road U42 North East From Stansted Hill To Great Hadham Road Green Tye…

Demolition of rear projections and erection of a single storey side and rear extension incorporating a canopy and associated landscaping. Insertion of...

Householder East Hertfordshire
16 Oct 2026 Awaiting decision 3/26/1479/PNHH

22 Hare Street Road Buntingford Hertfordshire SG9 9HW

Prior approval application (Part 1, Class A) for construction of single storey rear extension; depth extending from the original rear wall by 8.00 met...

Prior Notification Householder East Hertfordshire
16 Oct 2026 Awaiting decision 3/26/1403/HH

37 Croft Road Ware Hertfordshire SG12 0BD

Demolition of rear extension and erection of single storey rear extension with new door to side and alteration to side window

Householder East Hertfordshire
16 Oct 2026 Awaiting decision 3/26/1393/HH

63 The Crest Sawbridgeworth Hertfordshire CM21 0ES

Construction of single storey front entrance extension, and construction of first floor wraparound side and rear extension

Householder East Hertfordshire
16 Oct 2026 Awaiting decision 3/26/1426/HH

114 Cannons Close Bishops Stortford Hertfordshire CM23 2BJ

Demolition of existing garage and construction of single storey garden room and store

Householder East Hertfordshire
15 Oct 2026 Awaiting decision 3/26/1245/HH

7 Churchfield Road Tewin Hertfordshire AL6 0JW

Construction of orangery

Householder East Hertfordshire
15 Oct 2026 Awaiting decision 3/26/1432/CLPO

57 Gibbs Field Bishops Stortford Hertfordshire CM23 4EZ

Certificate of lawfulness for proposed loft conversion with rear dormer and front roof lights

CL Proposed Operations East Hertfordshire
15 Oct 2026 Awaiting decision 3/26/1411/FUL

47 London Road Hertford Heath Hertfordshire SG13 7RJ

Change of use and conversion of existing HMO dwelling to two residential dwellings with internal and external alterations including removal of the rea...

Full Application East Hertfordshire
15 Oct 2026 Awaiting decision 3/26/1358/HH

Meadowview Nasty Hertfordshire SG11 1HP

Demolition of porch and erection of replacement flat roof porch. Alterations to fenestration, including rendering and tiling of external walls and ins...

Householder East Hertfordshire
14 Oct 2026 Awaiting decision 3/26/1472/HH

58 West Street Hertford Hertfordshire SG13 8EZ

Insertion of rooflight into eastern side elevation of dwelling

Householder East Hertfordshire
14 Oct 2026 Awaiting decision 3/26/1468/FUL

Development Site St James Way Bishops Stortford Hertfordshire

Construction of 2no. canopies

Full Application East Hertfordshire
14 Oct 2026 Awaiting decision 3/26/1467/LBC

Heath Mount School Road South From Ware Road Past Heath Mount School To The Stables Woodhall Park Watton At…

Proposed local floor strengthening to south east wing enabling the House Parents accommodation to be changed to 'Learning Support Department'.

Listed Building Consent East Hertfordshire
14 Oct 2026 Awaiting decision 3/26/1469/HH

Westfield Hall Road U3976 East From New Road Pst Westfield Farm To Westfield Farm Lane Westland Green Little…

Removal of existing single skin metal oil tank and fenced enclosure and replacement with modern bunded oil tank within fence and planted enclosure

Householder East Hertfordshire
14 Oct 2026 Awaiting decision 3/26/1474/CLPO

57 Station Road Watton At Stone Hertfordshire SG14 3SH

Certificate of lawfulness for proposed loft conversion with construction of rear dormer and installation of three rooflights to front elevation

CL Proposed Operations East Hertfordshire
14 Oct 2026 Awaiting decision 3/26/1466/HH

8 The Stewarts Bishops Stortford Hertfordshire CM23 2NT

Demolition of existing rear conservatory. Erection of two storey front and rear extensions. Raising roof ridge. Removal of existing chimney and insert...

Householder East Hertfordshire
14 Oct 2026 Awaiting decision 3/26/1431/ASDPN

The Orchard Access Road From Labdens Lane To The Orchard Colliers End Hertfordshire SG11 1EP

Prior approval application (Part 1, Class AA) for construction of additional storey to create first floor living accommodation, height of 2.60 metres

Additional Storeys on a Dwelling PN East Hertfordshire
14 Oct 2026 Awaiting decision 3/26/1316/HH

Oak Bungalow Standon Green End High Cross Hertfordshire SG11 1BW

Demolition of garage, construction of additional storey to create first floor living accommodation and two storey side extension. Revised elevation tr...

Householder East Hertfordshire
13 Oct 2026 Awaiting decision 3/26/1463/HH

16 Temple Lane Tonwell Hertfordshire SG12 0HP

Erection of two storey side and single storey rear extension

Householder East Hertfordshire
13 Oct 2026 Awaiting decision 3/26/1462/CLPO

87 Cromwell Road Ware Hertfordshire SG12 7LA

Certificate of Lawfulness for proposed demolition of existing outbuildings and construction of single storey rear extension

CL Proposed Operations East Hertfordshire
13 Oct 2026 Awaiting decision 3/26/1317/HH

Westcott Westfield Farm Lane Westland Green Little Hadham Hertfordshire SG11 2AJ

Replacement and enlargement of an existing single-storey rear extension and windows replacement

Householder East Hertfordshire
12 Oct 2026 Awaiting decision 3/26/1456/HH

66 High Street Walkern Hertfordshire SG2 7PG

Construction of rear extension following demolition of rear outbuildings

Householder East Hertfordshire
12 Oct 2026 Awaiting decision 3/26/1320/HH

96 Hadham Road Bishops Stortford Hertfordshire CM23 2QF

Proposed single storey outbuilding for ancillary residential purposes as a pool and leisure facility

Householder East Hertfordshire
9 Oct 2026 Awaiting decision 3/26/1094/HH

21 Roydon Road Stanstead Abbotts Hertfordshire SG12 8HQ

Single and part two storey rear extension and single storey front extension, installation of new window, with reinstatement of historic parking space ...

Householder East Hertfordshire
8 Oct 2026 Awaiting decision 3/26/1442/HH

Brackenbury House Whitehill Dane End Hertfordshire SG12 0JT

Single storey side extension, two storey rear extension and associated alterations following the demolition of the existing side extension and the rem...

Householder East Hertfordshire
8 Oct 2026 Awaiting decision 3/26/1444/CLPO

17 Stockings Lane Little Berkhamsted Hertfordshire SG13 8LW

Certificate of lawfulness for proposed construction of 1 x dormer window to rear

CL Proposed Operations East Hertfordshire
8 Oct 2026 Awaiting decision 3/26/1443/PNHH

17 Stockings Lane Little Berkhamsted Hertfordshire SG13 8LW

Prior approval application (Part 1, Class A) for construction of single storey rear extension; depth extending from the original rear wall by 4.85 met...

Prior Notification Householder East Hertfordshire
8 Oct 2026 Awaiting decision 3/26/1329/HH

The Windmill 18A Ermine Street Thundridge Hertfordshire SG12 0SY

Single storey rear extension and alterations to fenestration

Householder East Hertfordshire
7 Oct 2026 Awaiting decision 3/26/1438/HH

7 Hillside Ware Hertfordshire SG12 9JZ

Single storey side and rear extension and alterations to fenestration

Householder East Hertfordshire
7 Oct 2026 Awaiting decision 3/26/1430/PNHH

The Orchard Access Road From Labdens Lane To The Orchard Colliers End Hertfordshire SG11 1EP

Prior approval application (Part 1, Class A) for construction of single storey rear extension; depth extending from the original rear wall by 8.00 met...

Prior Notification Householder East Hertfordshire
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Frequently asked questions

When do you need planning permission for a house extension?
Single-storey rear extensions up to 4m (detached) or 3m (semi-detached / terraced) are usually permitted development. Two-storey extensions, anything in a conservation area, or larger projects almost always need a planning application.
What's the difference between planning permission and permitted development?
Permitted development rights let you build certain things without applying for planning permission, subject to specified limits. Anything outside those limits, whether taller, larger or in a protected area, needs full planning permission.
How long does a householder application take?
The statutory target is 8 weeks from validation. Most simple householder extensions are decided within that window; complex or contested cases, especially those drawing a lot of comments, can take longer.
Can I get email alerts for new extensions applications in East Hertfordshire?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by East Hertfordshire. You can also narrow the alert to a postcode, street, or drawn area.

We check East Hertfordshire's planning portal daily. New extensions applications appear here within a day of being published.