Institute Of Astronomy, Observatory Building And Library Madingley Road Cambridge Cambridgeshire CB3 0HA

This site has had 2 applications since 2026: 2 approved, 0 refused.

• 26/02485/FUL Granted

  Institute Of Astronomy, Observatory Building And Library Madingley Road Cambridge Cambridgeshire CB3 0HA

  Alterations to provide improved disabled access, alongside general maintenance works. The scheme comprises the following: new external ramp to the eastern side of the central portico, new external ramp to service the exterior door in the western facade of the building, with interior mat well removed, regrading of external site levels to service the exterior door in the eastern facade of the building, with interior mat well removed, mechanisation of exterior doors and rearrangement of toilet block within eastern wing to provide disabled wc facility.

  Decided 8 Sep 2026 Full applications

1. 30 Jun 2026

   Received by Cambridge

2. 23 Jul 2026

   Added to PlanIndex

3. 8 Sep 2026

   Decision issued: Granted Permission

• Application: 26/02485/FUL (Awaiting decision)

Cambridge granted permission on 8 September 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• Institute Of Astronomy, Observatory Building And Library Madingley Road Cambridge Cambridgeshire CB3 0HA

  26/02485/FUL Submitted 30 Jun 2026 0m away

  Alterations to provide improved disabled access, alongside general maintenance works. The scheme comprises the following: new external ramp to the eastern side of the central portico, new external ramp to service the exterior door in the western facade of the building, with interior mat well removed, regrading of external site levels to service the exterior door in the eastern facade of the building, with interior mat well removed, mechanisation of exterior doors and rearrangement of toilet block within eastern wing to provide disabled wc facility.

  Granted Full applications 21 docs

• Churchill College Storeys Way Cambridge Cambridgeshire CB3 0DS

  26/0713/TTCA Submitted 10 Jul 2026 15m away

  Tree number 187 Quercus rubra Fell and grind out the stump

  Granted Trees 7 docs

• Institute Of Astronomy, Thorrowgood Telescope Building Madingley Road Cambridge Cambridgeshire CB3 0HA

  22/04587/LBC Submitted 17 Oct 2022 43m away

  Replacement of structure surrounding the Thorrowgood Telescope.

  Granted Heritage and listed buildings 18 docs

• Institute Of Astronomy, Thorrowgood Telescope Building Madingley Road Cambridge Cambridgeshire CB3 0HA

  22/04586/FUL Submitted 17 Oct 2022 43m away

  Replacement of structure surrounding the Thorrowgood Telescope.

  Granted Full applications 18 docs

• Institute Of Astronomy, Hoyle Building Madingley Road Cambridge CB3 0EZ

  20/1954/TTCA Submitted 14 Sep 2020 101m away

  T1: Blue Spruce (in severe decline) - Remove to ground level.

  Granted Trees 7 docs

• Institute Of Astronomy Madingley Road Cambridge CB3 0HA

  20/01755/LBC Submitted 18 Mar 2020 107m away

  Alterations to electrical power and IT data cabling, conduit and containment trunking upgrades and replacement, along with replacement lighting cabling and LED fitting upgrades.

  Granted Heritage and listed buildings 52 docs

• 26/02686/LBC Granted

  32-33 Petty Cury Cambridge Cambridgeshire CB2 3NB

  Replacement and repair of certain internal doors that do not comply with Health and Safety and security procedures.

  15 Jul 2026 Heritage and listed buildings
• 26/02663/LBC Granted

  1-5 Sidney Street Cambridge Cambridgeshire CB2 3HG

  Replacement and repair of selected internal doors, frames and architraves.

  13 Jul 2026 Heritage and listed buildings
• 26/02442/LBC Granted

  The Old Library Wheeler Street Cambridge Cambridgeshire CB2 3QB

  New layout to wc's on basement level and first floor, relocation of wheelchair accessible wc on ground floor.

  26 Jun 2026 Heritage and listed buildings
• 26/02428/LBC Granted

  Corpus Christi College Trumpington Street Cambridge Cambridgeshire CB2 1RH

  Structural repairs, fire safety upgrades and alterations to the bathroom layouts within the rooms surrounding I-Staircase, New Court, Corpus Christi.

  26 Jun 2026 Heritage and listed buildings
• 26/02660/LBC Granted

  Peterhouse, Old Court Trumpington Street Cambridge Cambridgeshire CB2 1RD

  Refurbishment of the Fellows Cloakroom in the Old Court.

  13 Jul 2026 Heritage and listed buildings