Conservation areas in Stevenage Borough Council

7 conservation areas and 127 Article 4 directions on the official register. If your property is in one, extensions, lofts, cladding, outbuildings and demolition follow stricter rules.

Council website

Conservation areas

Broadwater Conservation Area

Designated 2007 · ref. CA05

Rules & record

Old Town High Street Conservation Area

Designated 1969 · ref. CA06

Rules & record

Orchard Road Conservation Area

Designated 2007 · ref. CA02

Rules & record

Shephall Green Conservation Area

Designated 1973 · ref. CA04

Rules & record

St. Nicholas / Rectory Lane Conservation Area

Designated 1982 · ref. CA07

Rules & record

Symonds Green Conservation Area

Designated 1977 · ref. CA03

Rules & record

Town Square Conservation Area

Designated 1988 · ref. CA01

Rules & record

What a conservation area changes

Extensions

Side extensions, and rear extensions of more than one storey, are not permitted development — they need planning permission. Single-storey rear extensions keep their normal limits, but the Larger Home Extension prior-approval route is not available.

Lofts and roofs

Roof extensions such as dormers are not permitted development. Rooflights are usually fine if they don't project more than 15 cm.

Cladding

Cladding the outside of a house in stone, artificial stone, pebble dash, render, timber, plastic or tiles needs planning permission.

Outbuildings

Garden rooms, sheds and other outbuildings to the side of the house need planning permission.

Demolition

Demolishing a building larger than 115 m³ needs planning permission. Taking down a wall, gate or fence over 1 m high next to a road (or 2 m elsewhere) also needs permission.

Trees

You must give the council six weeks' notice before cutting down or pruning most trees (trunk over 7.5 cm across at 1.5 m high), even if they are not protected by a tree preservation order.

Article 4 directions

Councils can remove more permitted development rights — for example for windows, doors, porches or front boundaries — with an Article 4 direction. Check the council's list below.

Article 4 directions in Stevenage Borough Council

These remove some permitted development rights in the areas they cover — check whether one applies to your property before you rely on permitted development.

1 VIEWPOINT Babbage Road Stevenage SG1 2EQ (21 January 2026)
10 Eastman Way SG1 4SZ (21 January 2026)
2 Viewpoint Babbage Road Stevenage SG1 2EQ (21 January 2026)
3 Parsons Green Estate Boulton Road Stevenage SG1 4QG (21 January 2026)
3 VIEWPOINT Babbage Road Stevenage SG1 2EQ (21 January 2026)
4 VIEWPOINT Babbage Road Stevenage SG1 2EQ (21 January 2026)
5-6 Cartwright Road Stevenage SG1 4QJ (21 January 2026)
6 Viewpoint Babbage Road Stevenage SG1 2EQ (21 January 2026)
7 Viewpoint Babbage Road Stevenage SG1 2EQ (21 January 2026)
8 Viewpoint Babbage Road Stevenage SG1 2EQ (21 January 2026)
9 Eastman Way Stevenage SG1 4SZ (21 January 2026)
Abel Smith House Gunnels Wood Road Stevenage SG1 2ST (21 January 2026)
Aston House Boulton Road Stevenage SG1 4QX (21 January 2026)
Avnet House Rutherford Close Stevenage SG1 2EF (21 January 2026)
Balbir House VISHKARMA PARK Norton Green Road Stevenage (21 January 2026)
Bedford House Rutherford Close Stevenage SG1 2EF (21 January 2026)
Boulton Road Stevenage SG1 4QL (21 January 2026)
Britannia House Boulton Road Stevenage SG1 4QX (21 January 2026)
Cagex House Leyden Road Stevenage SG1 2BP (21 January 2026)
Cambridge House Campus 6 Caxton Way Stevenage (21 January 2026)
Cambridge House Campus 6 Caxton Way Stevenage SG1 2XD (21 January 2026)
Cavendish Road Stevenage SG1 2DY (21 January 2026)
Cavendish Road Stevenage SG1 2ET (21 January 2026)
Cavendish Road Stevenage SG1 2ET (21 January 2026)
CAXTON POINT Caxton Way Stevenage (21 January 2026)
Comark House Gunnels Wood Industrial Estate Gunnels Wood Road Stevenage SG1 2TA (21 January 2026)
Crompton Road Stevenage SG1 2EE (21 January 2026)
Crompton Road Stevenage SG1 2EE (21 January 2026)
Crompton Road Stevenage SG1 2EE (21 January 2026)
ELOPAK HOUSE Rutherford Close Stevenage SG1 2EF vvvvvv (21 January 2026)
Essex House Rutherford Close Stevenage SG1 2EF (21 January 2026)
Farnham House Six Hills Way Stevenage SG1 2FQ (21 January 2026)
Gunnels Wood Road Stevenage SG1 2AS (21 January 2026)
HADEN HOUSE ARGYLE WAY Stevenage SG1 2AD (21 January 2026)
Hertford House Rutherford Close Stevenage SG1 2EF (21 January 2026)
Middlesex House Rutherford Close Stevenage SG1 2EF (21 January 2026)
Niall House Boulton Road Stevenage SG1 4QX (21 January 2026)
Phosphor Technology Norton Park Norton Road Stevenage SG1 2BB (21 January 2026)
Redemption House Gunnels Wood Park (21 January 2026)
Robertson House Six Hills Way Stevenage SG1 2ST (21 January 2026)
Room S 4 Business And Technology Centre Bessemer Drive Stevenage SG1 2DX (21 January 2026)
SIX HILLS COURT Norton Green Road Stevenage SG1 2BA (21 January 2026)
Six Hills Way Stevenage SG1 2DH (21 January 2026)
SOLAR HOUSE Kings Way Stevenage SG1 2UA (21 January 2026)
Solutions House Crompton Road Stevenage (21 January 2026)
STERLING COURT Norton Road Stevenage SG1 2JY (21 January 2026)
Stevenage (20 September 2017)
Stevenage Bioscience Catalyst Gunnels Wood Road Stevenage SG1 2FX (21 January 2026)
Stevenage Glass Co Cavendish Road Stevenage SG1 2EU (21 January 2026)
Sycamore House Leyden Road Stevenage SG1 2BP (21 January 2026)
Telecommunications Mast 73105 Stevenage Borough Council Depot Cavendish Road Stevenage (21 January 2026)
Unit 1 Boulton Road Stevenage SG1 4QX (21 January 2026)
Unit 1 Centric Park Gunnels Wood Road Stevenage SG1 2ZB (21 January 2026)
Unit 1 EMS House Bowman Trading Estate Bessemer Drive Stevenage SG1 2DL (21 January 2026)
Unit 1 Gateway 1000 Arlington Business Park Whittle Way Stevenage SG1 2FP (21 January 2026)
UNIT 1 HYATT TRADING ESTATE Babbage Road Stevenage SG1 2EQ (21 January 2026)
Unit 1-2 Gunnels Wood Park Gunnels Wood Road Stevenage SG1 2BH (21 January 2026)
Unit 10 Gateway 1000 Arlington Business Park Whittle Way Stevenage SG1 2FP (21 January 2026)
Unit 11 Gateway 1000 Arlington Business Park Whittle Way Stevenage SG1 2FP (21 January 2026)
Unit 11 HYATT TRADING ESTATE Babbage Road Stevenage SG1 2EQ (21 January 2026)

Showing 60 of 127. The full list is on the council's website.

Conservation area and Article 4 data: planning.data.gov.uk. Contains public sector information licensed under the Open Government Licence v3.0. Always confirm boundaries and rules with the council before starting work. General information, not legal advice.

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