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Permitted3/06/1959/FPSubmitted 20 years agoAnnexe

21, Burnham Green Road, Datchworth, Knebworth, SG3 6SE

Conversion of part ground floor to granny annex

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Map of the site

Progress

Submitted
5 Oct 2006
— completed
Validated
5 Oct 2006
— completed
Consultation
—
— completed
Target date
—
— completed
Decided
13 Oct 2006
— completed

Application details

Reference
3/06/1959/FP
Local authority
East Hertfordshire
Postcode
SG3 6SE
Ward
Datchworth And Aston
Application type
Full
Property type
House

Key dates

Submitted
5 Oct 2006
Validated
5 Oct 2006
Decided
13 Oct 2006

0 documents · 0 comments · 1 constraints

Estimated project value

£50k–£110k

Typical UK cost for this job type, at UK average rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: trade estimate.

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.

Homes here go for about £715,000 — the median of the last 8 market sales in SG3 6SE, £425,000 to £1,300,000.

Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.

Planning constraints

No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.

Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.

Nearby applications