Diazo Architects Ltd
Diazo Architects Ltd is an architectural practice in Hitchin. See its accreditations, specialisms and planning track record.
Active on Companies House
10152886
Architectural Activities
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Hitchin, Hertfordshire, SG5
About Diazo Architects Ltd
Diazo Architects is a Hertfordshire-based RIBA Chartered practice specialising in residential design. The firm offers a full range of architectural services from feasibility and conceptual design through to mobilisation, handover and close out, and operates across the UK while maintaining a collaborative approach focused on achieving the best solutions within client budgets.
Credentials
- ARB registered
- RIBA chartered
Memberships can lapse, so check before work starts.
Planning Application Track Record
14
Applications
100%
Approval Rate
4
Local Authorities
Local Authorities
East Hertfordshire
North Hertfordshire
South Cambridgeshire
St Albans
Application Types
Extensions
3
Planning Application History (14)
12 of 14 applications have a map location
26/02558/FPH
Insertion of front and rear rooflights to facilitate loft conversion into habitable accommodation.
6 Masefield Way Royston Hertfordshire SG8 5UU
Undecided
North Hertfordshire2026-10-2226/01659/FPH
Part first floor and part two storey side extension above existing garage and alterations to front fenestration.
1 Matthew Gate Hitchin Hertfordshire SG4 9EQ
Permitted
North Hertfordshire2026-07-1726/02494/FPH
Insertion of L shaped rear dormer with two Juliet balconies and 2 no. rooflights to front roofslope to facilitate loft conversion
31 Kershaws Hill Hitchin Hertfordshire SG4 9AQ
Undecided
North Hertfordshire2026-10-1626/00798/FPH
Alterations to existing roof to include hip to gable roof extension with glazed elevation, installation of front and side solar panels and rooflights to create habitable space at first floor level.
7 Uplands Avenue Hitchin Hertfordshire SG4 9NH
Permitted
North Hertfordshire2026-03-2526/00480/DOC
Details reserved by condition 3 (Materials) of planning permission reference no 24/02851/FPH granted 17.04.2025.
31 Garden Fields Offley Hitchin Hertfordshire SG5 3DF
Permitted
North Hertfordshire2026-02-2026/00725/CL2PD
Certificate of lawfulness under S192 for loft conversion and addition of 4no. rooflights.
40 West Croft Orwell Cambridgeshire SG8 5PW
Permitted
South Cambridgeshire2026-02-2425/01629/HFUL
Roof extension including rear dormer with juliette balcony and 3no. rooflights to front elevation.
92 Ermine Way Arrington Cambridgeshire SG8 0AH
Permitted
South Cambridgeshire2025-04-283/22/1057/CLPO
Loft conversion with two front roof lights and rear dormer with doors opening to Juliet balcony.
41 Perowne Way Puckeridge Ware Hertfordshire SG11 1TA
Permitted
East Hertfordshire2022-05-195/2025/0450
Loft conversion at 104 Creighton Avenue St Albans Hertfordshire AL1 2LQ
104 Creighton Avenue St Albans Hertfordshire AL1 2LQ
Conditions
St AlbansNorthHertfordshire/26/01816/FPH
North HertfordshireNot in our records
26/01816/FPH
Installation of box dormer to existing side roofslope to facilitate conversion of loftspace into habitable accommodation.
7 Uplands Avenue Hitchin Hertfordshire SG4 9NH
Permitted
North Hertfordshire2026-08-04NorthHertfordshire/26/01659/FPH
North HertfordshireNot in our records
26/00725/CL2PD
Certificate of lawfulness under S192 for loft conversion and addition of 4no. rooflights.
40 West Croft Orwell Cambridgeshire SG8 5PW
Permitted
South Cambridgeshire2026-02-2425/01629/HFUL
Roof extension including rear dormer with juliette balcony and 3no. rooflights to front elevation.
92 Ermine Way Arrington Cambridgeshire SG8 0AH
Permitted
South Cambridgeshire2025-04-28